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chicoxyzzy/hello.js

Created January 3, 2017 23:54
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Rust -> wasm
Raw
hello.js
/*
* Copyright 2015 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
function integrateWasmJS(Module) {
// wasm.js has several methods for creating the compiled code module here:
// * 'native-wasm' : use native WebAssembly support in the browser
// * 'interpret-s-expr': load s-expression code from a .wast and interpret
// * 'interpret-binary': load binary wasm and interpret
// * 'interpret-asm2wasm': load asm.js code, translate to wasm, and interpret
// * 'asmjs': no wasm, just load the asm.js code and use that (good for testing)
// The method can be set at compile time (BINARYEN_METHOD), or runtime by setting Module['wasmJSMethod'].
// The method can be a comma-separated list, in which case, we will try the
// options one by one. Some of them can fail gracefully, and then we can try
// the next.
// inputs
var method = Module['wasmJSMethod'] || (Module['wasmJSMethod'] || "native-wasm") || 'native-wasm'; // by default, use native support
Module['wasmJSMethod'] = method;
var wasmTextFile = Module['wasmTextFile'] || "hello.wast";
var wasmBinaryFile = Module['wasmBinaryFile'] || "hello.wasm";
var asmjsCodeFile = Module['asmjsCodeFile'] || "hello.asm.js";
// utilities
var wasmPageSize = 64*1024;
var asm2wasmImports = { // special asm2wasm imports
"f64-rem": function(x, y) {
return x % y;
},
"f64-to-int": function(x) {
return x | 0;
},
"i32s-div": function(x, y) {
return ((x | 0) / (y | 0)) | 0;
},
"i32u-div": function(x, y) {
return ((x >>> 0) / (y >>> 0)) >>> 0;
},
"i32s-rem": function(x, y) {
return ((x | 0) % (y | 0)) | 0;
},
"i32u-rem": function(x, y) {
return ((x >>> 0) % (y >>> 0)) >>> 0;
},
"debugger": function() {
debugger;
},
};
var info = {
'global': null,
'env': null,
'asm2wasm': asm2wasmImports,
'parent': Module // Module inside wasm-js.cpp refers to wasm-js.cpp; this allows access to the outside program.
};
var exports = null;
function lookupImport(mod, base) {
var lookup = info;
if (mod.indexOf('.') < 0) {
lookup = (lookup || {})[mod];
} else {
var parts = mod.split('.');
lookup = (lookup || {})[parts[0]];
lookup = (lookup || {})[parts[1]];
}
if (base) {
lookup = (lookup || {})[base];
}
if (lookup === undefined) {
abort('bad lookupImport to (' + mod + ').' + base);
}
return lookup;
}
function mergeMemory(newBuffer) {
// The wasm instance creates its memory. But static init code might have written to
// buffer already, including the mem init file, and we must copy it over in a proper merge.
// TODO: avoid this copy, by avoiding such static init writes
// TODO: in shorter term, just copy up to the last static init write
var oldBuffer = Module['buffer'];
if (newBuffer.byteLength < oldBuffer.byteLength) {
Module['printErr']('the new buffer in mergeMemory is smaller than the previous one. in native wasm, we should grow memory here');
}
var oldView = new Int8Array(oldBuffer);
var newView = new Int8Array(newBuffer);
// If we have a mem init file, do not trample it
if (!memoryInitializer) {
oldView.set(newView.subarray(STATIC_BASE, STATIC_BASE + STATIC_BUMP), STATIC_BASE);
}
newView.set(oldView);
updateGlobalBuffer(newBuffer);
updateGlobalBufferViews();
}
var WasmTypes = {
none: 0,
i32: 1,
i64: 2,
f32: 3,
f64: 4
};
function fixImports(imports) {
if (!0) return imports;
var ret = {};
for (var i in imports) {
var fixed = i;
if (fixed[0] == '_') fixed = fixed.substr(1);
ret[fixed] = imports[i];
}
return ret;
}
function getBinary() {
var binary;
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
binary = Module['wasmBinary'];
assert(binary, "on the web, we need the wasm binary to be preloaded and set on Module['wasmBinary']. emcc.py will do that for you when generating HTML (but not JS)");
binary = new Uint8Array(binary);
} else {
binary = Module['readBinary'](wasmBinaryFile);
}
return binary;
}
// do-method functions
function doJustAsm(global, env, providedBuffer) {
// if no Module.asm, or it's the method handler helper (see below), then apply
// the asmjs
if (typeof Module['asm'] !== 'function' || Module['asm'] === methodHandler) {
if (!Module['asmPreload']) {
// you can load the .asm.js file before this, to avoid this sync xhr and eval
eval(Module['read'](asmjsCodeFile)); // set Module.asm
} else {
Module['asm'] = Module['asmPreload'];
}
}
if (typeof Module['asm'] !== 'function') {
Module['printErr']('asm evalling did not set the module properly');
return false;
}
return Module['asm'](global, env, providedBuffer);
}
function doNativeWasm(global, env, providedBuffer) {
if (typeof WebAssembly !== 'object') {
Module['printErr']('no native wasm support detected');
return false;
}
// prepare memory import
if (!(Module['wasmMemory'] instanceof WebAssembly.Memory)) {
Module['printErr']('no native wasm Memory in use');
return false;
}
env['memory'] = Module['wasmMemory'];
// Load the wasm module and create an instance of using native support in the JS engine.
info['global'] = {
'NaN': NaN,
'Infinity': Infinity
};
info['global.Math'] = global.Math;
info['env'] = env;
var instance;
try {
instance = new WebAssembly.Instance(new WebAssembly.Module(getBinary()), info)
} catch (e) {
Module['printErr']('failed to compile wasm module: ' + e);
if (e.toString().indexOf('imported Memory with incompatible size') >= 0) {
Module['printErr']('Memory size incompatibility issues may be due to changing TOTAL_MEMORY at runtime to something too large. Use ALLOW_MEMORY_GROWTH to allow any size memory (and also make sure not to set TOTAL_MEMORY at runtime to something smaller than it was at compile time).');
}
return false;
}
exports = instance.exports;
if (exports.memory) mergeMemory(exports.memory);
Module["usingWasm"] = true;
return exports;
}
function doWasmPolyfill(global, env, providedBuffer, method) {
if (typeof WasmJS !== 'function') {
Module['printErr']('WasmJS not detected - polyfill not bundled?');
return false;
}
// Use wasm.js to polyfill and execute code in a wasm interpreter.
var wasmJS = WasmJS({});
// XXX don't be confused. Module here is in the outside program. wasmJS is the inner wasm-js.cpp.
wasmJS['outside'] = Module; // Inside wasm-js.cpp, Module['outside'] reaches the outside module.
// Information for the instance of the module.
wasmJS['info'] = info;
wasmJS['lookupImport'] = lookupImport;
assert(providedBuffer === Module['buffer']); // we should not even need to pass it as a 3rd arg for wasm, but that's the asm.js way.
info.global = global;
info.env = env;
// polyfill interpreter expects an ArrayBuffer
assert(providedBuffer === Module['buffer']);
env['memory'] = providedBuffer;
assert(env['memory'] instanceof ArrayBuffer);
wasmJS['providedTotalMemory'] = Module['buffer'].byteLength;
// Prepare to generate wasm, using either asm2wasm or s-exprs
var code;
if (method === 'interpret-binary') {
code = getBinary();
} else {
code = Module['read'](method == 'interpret-asm2wasm' ? asmjsCodeFile : wasmTextFile);
}
var temp;
if (method == 'interpret-asm2wasm') {
temp = wasmJS['_malloc'](code.length + 1);
wasmJS['writeAsciiToMemory'](code, temp);
wasmJS['_load_asm2wasm'](temp);
} else if (method === 'interpret-s-expr') {
temp = wasmJS['_malloc'](code.length + 1);
wasmJS['writeAsciiToMemory'](code, temp);
wasmJS['_load_s_expr2wasm'](temp);
} else if (method === 'interpret-binary') {
temp = wasmJS['_malloc'](code.length);
wasmJS['HEAPU8'].set(code, temp);
wasmJS['_load_binary2wasm'](temp, code.length);
} else {
throw 'what? ' + method;
}
wasmJS['_free'](temp);
wasmJS['_instantiate'](temp);
if (Module['newBuffer']) {
mergeMemory(Module['newBuffer']);
Module['newBuffer'] = null;
}
exports = wasmJS['asmExports'];
return exports;
}
// We may have a preloaded value in Module.asm, save it
Module['asmPreload'] = Module['asm'];
// Memory growth integration code
Module['reallocBuffer'] = function(size) {
size = Math.ceil(size / wasmPageSize) * wasmPageSize; // round up to wasm page size
var old = Module['buffer'];
var result = exports['__growWasmMemory'](size / wasmPageSize); // tiny wasm method that just does grow_memory
if (Module["usingWasm"]) {
if (result !== (-1 | 0)) {
// success in native wasm memory growth, get the buffer from the memory
return Module['buffer'] = Module['wasmMemory'].buffer;
} else {
return null;
}
} else {
// in interpreter, we replace Module.buffer if we allocate
return Module['buffer'] !== old ? Module['buffer'] : null; // if it was reallocated, it changed
}
};
// Provide an "asm.js function" for the application, called to "link" the asm.js module. We instantiate
// the wasm module at that time, and it receives imports and provides exports and so forth, the app
// doesn't need to care that it is wasm or olyfilled wasm or asm.js.
Module['asm'] = function(global, env, providedBuffer) {
global = fixImports(global);
env = fixImports(env);
// import table
if (!env['table']) {
var TABLE_SIZE = Module['wasmTableSize'];
if (TABLE_SIZE === undefined) TABLE_SIZE = 1024; // works in binaryen interpreter at least
if (typeof WebAssembly === 'object' && typeof WebAssembly.Table === 'function') {
env['table'] = new WebAssembly.Table({ initial: TABLE_SIZE, maximum: TABLE_SIZE, element: 'anyfunc' });
} else {
env['table'] = new Array(TABLE_SIZE); // works in binaryen interpreter at least
}
}
if (!env['memoryBase']) {
env['memoryBase'] = STATIC_BASE; // tell the memory segments where to place themselves
}
if (!env['tableBase']) {
env['tableBase'] = 0; // table starts at 0 by default, in dynamic linking this will change
}
// try the methods. each should return the exports if it succeeded
var exports;
var methods = method.split(',');
for (var i = 0; i < methods.length; i++) {
var curr = methods[i];
Module['printErr']('trying binaryen method: ' + curr);
if (curr === 'native-wasm') {
if (exports = doNativeWasm(global, env, providedBuffer)) break;
} else if (curr === 'asmjs') {
if (exports = doJustAsm(global, env, providedBuffer)) break;
} else if (curr === 'interpret-asm2wasm' || curr === 'interpret-s-expr' || curr === 'interpret-binary') {
if (exports = doWasmPolyfill(global, env, providedBuffer, curr)) break;
} else {
throw 'bad method: ' + curr;
}
}
if (!exports) throw 'no binaryen method succeeded. consider enabling more options, like interpreting, if you want that: https://github.com/kripken/emscripten/wiki/WebAssembly#binaryen-methods';
Module['printErr']('binaryen method succeeded.');
return exports;
};
var methodHandler = Module['asm']; // note our method handler, as we may modify Module['asm'] later
}
// The Module object: Our interface to the outside world. We import
// and export values on it, and do the work to get that through
// closure compiler if necessary. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(Module) { ..generated code.. }
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to do an eval in order to handle the closure compiler
// case, where this code here is minified but Module was defined
// elsewhere (e.g. case 4 above). We also need to check if Module
// already exists (e.g. case 3 above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
var Module;
if (!Module) Module = (typeof Module !== 'undefined' ? Module : null) || {};
// Sometimes an existing Module object exists with properties
// meant to overwrite the default module functionality. Here
// we collect those properties and reapply _after_ we configure
// the current environment's defaults to avoid having to be so
// defensive during initialization.
var moduleOverrides = {};
for (var key in Module) {
if (Module.hasOwnProperty(key)) {
moduleOverrides[key] = Module[key];
}
}
// The environment setup code below is customized to use Module.
// *** Environment setup code ***
var ENVIRONMENT_IS_WEB = false;
var ENVIRONMENT_IS_WORKER = false;
var ENVIRONMENT_IS_NODE = false;
var ENVIRONMENT_IS_SHELL = false;
// Three configurations we can be running in:
// 1) We could be the application main() thread running in the main JS UI thread. (ENVIRONMENT_IS_WORKER == false and ENVIRONMENT_IS_PTHREAD == false)
// 2) We could be the application main() thread proxied to worker. (with Emscripten -s PROXY_TO_WORKER=1) (ENVIRONMENT_IS_WORKER == true, ENVIRONMENT_IS_PTHREAD == false)
// 3) We could be an application pthread running in a worker. (ENVIRONMENT_IS_WORKER == true and ENVIRONMENT_IS_PTHREAD == true)
if (Module['ENVIRONMENT']) {
if (Module['ENVIRONMENT'] === 'WEB') {
ENVIRONMENT_IS_WEB = true;
} else if (Module['ENVIRONMENT'] === 'WORKER') {
ENVIRONMENT_IS_WORKER = true;
} else if (Module['ENVIRONMENT'] === 'NODE') {
ENVIRONMENT_IS_NODE = true;
} else if (Module['ENVIRONMENT'] === 'SHELL') {
ENVIRONMENT_IS_SHELL = true;
} else {
throw new Error('The provided Module[\'ENVIRONMENT\'] value is not valid. It must be one of: WEB|WORKER|NODE|SHELL.');
}
} else {
ENVIRONMENT_IS_WEB = typeof window === 'object';
ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'function' && !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_WORKER;
ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
}
if (ENVIRONMENT_IS_NODE) {
// Expose functionality in the same simple way that the shells work
// Note that we pollute the global namespace here, otherwise we break in node
if (!Module['print']) Module['print'] = console.log;
if (!Module['printErr']) Module['printErr'] = console.warn;
var nodeFS;
var nodePath;
Module['read'] = function read(filename, binary) {
if (!nodeFS) nodeFS = require('fs');
if (!nodePath) nodePath = require('path');
filename = nodePath['normalize'](filename);
var ret = nodeFS['readFileSync'](filename);
return binary ? ret : ret.toString();
};
Module['readBinary'] = function readBinary(filename) {
var ret = Module['read'](filename, true);
if (!ret.buffer) {
ret = new Uint8Array(ret);
}
assert(ret.buffer);
return ret;
};
Module['load'] = function load(f) {
globalEval(read(f));
};
if (!Module['thisProgram']) {
if (process['argv'].length > 1) {
Module['thisProgram'] = process['argv'][1].replace(/\\/g, '/');
} else {
Module['thisProgram'] = 'unknown-program';
}
}
Module['arguments'] = process['argv'].slice(2);
if (typeof module !== 'undefined') {
module['exports'] = Module;
}
process['on']('uncaughtException', function(ex) {
// suppress ExitStatus exceptions from showing an error
if (!(ex instanceof ExitStatus)) {
throw ex;
}
});
Module['inspect'] = function () { return '[Emscripten Module object]'; };
}
else if (ENVIRONMENT_IS_SHELL) {
if (!Module['print']) Module['print'] = print;
if (typeof printErr != 'undefined') Module['printErr'] = printErr; // not present in v8 or older sm
if (typeof read != 'undefined') {
Module['read'] = read;
} else {
Module['read'] = function read() { throw 'no read() available' };
}
Module['readBinary'] = function readBinary(f) {
if (typeof readbuffer === 'function') {
return new Uint8Array(readbuffer(f));
}
var data = read(f, 'binary');
assert(typeof data === 'object');
return data;
};
if (typeof scriptArgs != 'undefined') {
Module['arguments'] = scriptArgs;
} else if (typeof arguments != 'undefined') {
Module['arguments'] = arguments;
}
}
else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
Module['read'] = function read(url) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.send(null);
return xhr.responseText;
};
Module['readAsync'] = function readAsync(url, onload, onerror) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'arraybuffer';
xhr.onload = function xhr_onload() {
if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
onload(xhr.response);
} else {
onerror();
}
};
xhr.onerror = onerror;
xhr.send(null);
};
if (typeof arguments != 'undefined') {
Module['arguments'] = arguments;
}
if (typeof console !== 'undefined') {
if (!Module['print']) Module['print'] = function print(x) {
console.log(x);
};
if (!Module['printErr']) Module['printErr'] = function printErr(x) {
console.warn(x);
};
} else {
// Probably a worker, and without console.log. We can do very little here...
var TRY_USE_DUMP = false;
if (!Module['print']) Module['print'] = (TRY_USE_DUMP && (typeof(dump) !== "undefined") ? (function(x) {
dump(x);
}) : (function(x) {
// self.postMessage(x); // enable this if you want stdout to be sent as messages
}));
}
if (ENVIRONMENT_IS_WORKER) {
Module['load'] = importScripts;
}
if (typeof Module['setWindowTitle'] === 'undefined') {
Module['setWindowTitle'] = function(title) { document.title = title };
}
}
else {
// Unreachable because SHELL is dependant on the others
throw 'Unknown runtime environment. Where are we?';
}
function globalEval(x) {
eval.call(null, x);
}
if (!Module['load'] && Module['read']) {
Module['load'] = function load(f) {
globalEval(Module['read'](f));
};
}
if (!Module['print']) {
Module['print'] = function(){};
}
if (!Module['printErr']) {
Module['printErr'] = Module['print'];
}
if (!Module['arguments']) {
Module['arguments'] = [];
}
if (!Module['thisProgram']) {
Module['thisProgram'] = './this.program';
}
// *** Environment setup code ***
// Closure helpers
Module.print = Module['print'];
Module.printErr = Module['printErr'];
// Callbacks
Module['preRun'] = [];
Module['postRun'] = [];
// Merge back in the overrides
for (var key in moduleOverrides) {
if (moduleOverrides.hasOwnProperty(key)) {
Module[key] = moduleOverrides[key];
}
}
// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array.
moduleOverrides = undefined;
integrateWasmJS(Module);
// {{PREAMBLE_ADDITIONS}}
// === Preamble library stuff ===
// Documentation for the public APIs defined in this file must be updated in:
// site/source/docs/api_reference/preamble.js.rst
// A prebuilt local version of the documentation is available at:
// site/build/text/docs/api_reference/preamble.js.txt
// You can also build docs locally as HTML or other formats in site/
// An online HTML version (which may be of a different version of Emscripten)
// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html
//========================================
// Runtime code shared with compiler
//========================================
var Runtime = {
setTempRet0: function (value) {
tempRet0 = value;
},
getTempRet0: function () {
return tempRet0;
},
stackSave: function () {
return STACKTOP;
},
stackRestore: function (stackTop) {
STACKTOP = stackTop;
},
getNativeTypeSize: function (type) {
switch (type) {
case 'i1': case 'i8': return 1;
case 'i16': return 2;
case 'i32': return 4;
case 'i64': return 8;
case 'float': return 4;
case 'double': return 8;
default: {
if (type[type.length-1] === '*') {
return Runtime.QUANTUM_SIZE; // A pointer
} else if (type[0] === 'i') {
var bits = parseInt(type.substr(1));
assert(bits % 8 === 0);
return bits/8;
} else {
return 0;
}
}
}
},
getNativeFieldSize: function (type) {
return Math.max(Runtime.getNativeTypeSize(type), Runtime.QUANTUM_SIZE);
},
STACK_ALIGN: 16,
prepVararg: function (ptr, type) {
if (type === 'double' || type === 'i64') {
// move so the load is aligned
if (ptr & 7) {
assert((ptr & 7) === 4);
ptr += 4;
}
} else {
assert((ptr & 3) === 0);
}
return ptr;
},
getAlignSize: function (type, size, vararg) {
// we align i64s and doubles on 64-bit boundaries, unlike x86
if (!vararg && (type == 'i64' || type == 'double')) return 8;
if (!type) return Math.min(size, 8); // align structures internally to 64 bits
return Math.min(size || (type ? Runtime.getNativeFieldSize(type) : 0), Runtime.QUANTUM_SIZE);
},
dynCall: function (sig, ptr, args) {
if (args && args.length) {
assert(args.length == sig.length-1);
assert(('dynCall_' + sig) in Module, 'bad function pointer type - no table for sig \'' + sig + '\'');
return Module['dynCall_' + sig].apply(null, [ptr].concat(args));
} else {
assert(sig.length == 1);
assert(('dynCall_' + sig) in Module, 'bad function pointer type - no table for sig \'' + sig + '\'');
return Module['dynCall_' + sig].call(null, ptr);
}
},
functionPointers: [],
addFunction: function (func) {
for (var i = 0; i < Runtime.functionPointers.length; i++) {
if (!Runtime.functionPointers[i]) {
Runtime.functionPointers[i] = func;
return 2*(1 + i);
}
}
throw 'Finished up all reserved function pointers. Use a higher value for RESERVED_FUNCTION_POINTERS.';
},
removeFunction: function (index) {
Runtime.functionPointers[(index-2)/2] = null;
},
warnOnce: function (text) {
if (!Runtime.warnOnce.shown) Runtime.warnOnce.shown = {};
if (!Runtime.warnOnce.shown[text]) {
Runtime.warnOnce.shown[text] = 1;
Module.printErr(text);
}
},
funcWrappers: {},
getFuncWrapper: function (func, sig) {
assert(sig);
if (!Runtime.funcWrappers[sig]) {
Runtime.funcWrappers[sig] = {};
}
var sigCache = Runtime.funcWrappers[sig];
if (!sigCache[func]) {
// optimize away arguments usage in common cases
if (sig.length === 1) {
sigCache[func] = function dynCall_wrapper() {
return Runtime.dynCall(sig, func);
};
} else if (sig.length === 2) {
sigCache[func] = function dynCall_wrapper(arg) {
return Runtime.dynCall(sig, func, [arg]);
};
} else {
// general case
sigCache[func] = function dynCall_wrapper() {
return Runtime.dynCall(sig, func, Array.prototype.slice.call(arguments));
};
}
}
return sigCache[func];
},
getCompilerSetting: function (name) {
throw 'You must build with -s RETAIN_COMPILER_SETTINGS=1 for Runtime.getCompilerSetting or emscripten_get_compiler_setting to work';
},
stackAlloc: function (size) { var ret = STACKTOP;STACKTOP = (STACKTOP + size)|0;STACKTOP = (((STACKTOP)+15)&-16);(assert((((STACKTOP|0) < (STACK_MAX|0))|0))|0); return ret; },
staticAlloc: function (size) { var ret = STATICTOP;STATICTOP = (STATICTOP + (assert(!staticSealed),size))|0;STATICTOP = (((STATICTOP)+15)&-16); return ret; },
dynamicAlloc: function (size) { assert(DYNAMICTOP_PTR);var ret = HEAP32[DYNAMICTOP_PTR>>2];var end = (((ret + size + 15)|0) & -16);HEAP32[DYNAMICTOP_PTR>>2] = end;if (end >= TOTAL_MEMORY) {var success = enlargeMemory();if (!success) {HEAP32[DYNAMICTOP_PTR>>2] = ret;return 0;}}return ret;},
alignMemory: function (size,quantum) { var ret = size = Math.ceil((size)/(quantum ? quantum : 16))*(quantum ? quantum : 16); return ret; },
makeBigInt: function (low,high,unsigned) { var ret = (unsigned ? ((+((low>>>0)))+((+((high>>>0)))*4294967296.0)) : ((+((low>>>0)))+((+((high|0)))*4294967296.0))); return ret; },
GLOBAL_BASE: 1024,
QUANTUM_SIZE: 4,
__dummy__: 0
}
Module["Runtime"] = Runtime;
//========================================
// Runtime essentials
//========================================
var ABORT = 0; // whether we are quitting the application. no code should run after this. set in exit() and abort()
var EXITSTATUS = 0;
function assert(condition, text) {
if (!condition) {
abort('Assertion failed: ' + text);
}
}
var globalScope = this;
// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
function getCFunc(ident) {
var func = Module['_' + ident]; // closure exported function
if (!func) {
try { func = eval('_' + ident); } catch(e) {}
}
assert(func, 'Cannot call unknown function ' + ident + ' (perhaps LLVM optimizations or closure removed it?)');
return func;
}
var cwrap, ccall;
(function(){
var JSfuncs = {
// Helpers for cwrap -- it can't refer to Runtime directly because it might
// be renamed by closure, instead it calls JSfuncs['stackSave'].body to find
// out what the minified function name is.
'stackSave': function() {
Runtime.stackSave()
},
'stackRestore': function() {
Runtime.stackRestore()
},
// type conversion from js to c
'arrayToC' : function(arr) {
var ret = Runtime.stackAlloc(arr.length);
writeArrayToMemory(arr, ret);
return ret;
},
'stringToC' : function(str) {
var ret = 0;
if (str !== null && str !== undefined && str !== 0) { // null string
// at most 4 bytes per UTF-8 code point, +1 for the trailing '\0'
var len = (str.length << 2) + 1;
ret = Runtime.stackAlloc(len);
stringToUTF8(str, ret, len);
}
return ret;
}
};
// For fast lookup of conversion functions
var toC = {'string' : JSfuncs['stringToC'], 'array' : JSfuncs['arrayToC']};
// C calling interface.
ccall = function ccallFunc(ident, returnType, argTypes, args, opts) {
var func = getCFunc(ident);
var cArgs = [];
var stack = 0;
assert(returnType !== 'array', 'Return type should not be "array".');
if (args) {
for (var i = 0; i < args.length; i++) {
var converter = toC[argTypes[i]];
if (converter) {
if (stack === 0) stack = Runtime.stackSave();
cArgs[i] = converter(args[i]);
} else {
cArgs[i] = args[i];
}
}
}
var ret = func.apply(null, cArgs);
if ((!opts || !opts.async) && typeof EmterpreterAsync === 'object') {
assert(!EmterpreterAsync.state, 'cannot start async op with normal JS calling ccall');
}
if (opts && opts.async) assert(!returnType, 'async ccalls cannot return values');
if (returnType === 'string') ret = Pointer_stringify(ret);
if (stack !== 0) {
if (opts && opts.async) {
EmterpreterAsync.asyncFinalizers.push(function() {
Runtime.stackRestore(stack);
});
return;
}
Runtime.stackRestore(stack);
}
return ret;
}
var sourceRegex = /^function\s*[a-zA-Z$_0-9]*\s*\(([^)]*)\)\s*{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?}$/;
function parseJSFunc(jsfunc) {
// Match the body and the return value of a javascript function source
var parsed = jsfunc.toString().match(sourceRegex).slice(1);
return {arguments : parsed[0], body : parsed[1], returnValue: parsed[2]}
}
// sources of useful functions. we create this lazily as it can trigger a source decompression on this entire file
var JSsource = null;
function ensureJSsource() {
if (!JSsource) {
JSsource = {};
for (var fun in JSfuncs) {
if (JSfuncs.hasOwnProperty(fun)) {
// Elements of toCsource are arrays of three items:
// the code, and the return value
JSsource[fun] = parseJSFunc(JSfuncs[fun]);
}
}
}
}
cwrap = function cwrap(ident, returnType, argTypes) {
argTypes = argTypes || [];
var cfunc = getCFunc(ident);
// When the function takes numbers and returns a number, we can just return
// the original function
var numericArgs = argTypes.every(function(type){ return type === 'number'});
var numericRet = (returnType !== 'string');
if ( numericRet && numericArgs) {
return cfunc;
}
// Creation of the arguments list (["$1","$2",...,"$nargs"])
var argNames = argTypes.map(function(x,i){return '$'+i});
var funcstr = "(function(" + argNames.join(',') + ") {";
var nargs = argTypes.length;
if (!numericArgs) {
// Generate the code needed to convert the arguments from javascript
// values to pointers
ensureJSsource();
funcstr += 'var stack = ' + JSsource['stackSave'].body + ';';
for (var i = 0; i < nargs; i++) {
var arg = argNames[i], type = argTypes[i];
if (type === 'number') continue;
var convertCode = JSsource[type + 'ToC']; // [code, return]
funcstr += 'var ' + convertCode.arguments + ' = ' + arg + ';';
funcstr += convertCode.body + ';';
funcstr += arg + '=(' + convertCode.returnValue + ');';
}
}
// When the code is compressed, the name of cfunc is not literally 'cfunc' anymore
var cfuncname = parseJSFunc(function(){return cfunc}).returnValue;
// Call the function
funcstr += 'var ret = ' + cfuncname + '(' + argNames.join(',') + ');';
if (!numericRet) { // Return type can only by 'string' or 'number'
// Convert the result to a string
var strgfy = parseJSFunc(function(){return Pointer_stringify}).returnValue;
funcstr += 'ret = ' + strgfy + '(ret);';
}
funcstr += "if (typeof EmterpreterAsync === 'object') { assert(!EmterpreterAsync.state, 'cannot start async op with normal JS calling cwrap') }";
if (!numericArgs) {
// If we had a stack, restore it
ensureJSsource();
funcstr += JSsource['stackRestore'].body.replace('()', '(stack)') + ';';
}
funcstr += 'return ret})';
return eval(funcstr);
};
})();
Module["ccall"] = ccall;
Module["cwrap"] = cwrap;
function setValue(ptr, value, type, noSafe) {
type = type || 'i8';
if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
switch(type) {
case 'i1': HEAP8[((ptr)>>0)]=value; break;
case 'i8': HEAP8[((ptr)>>0)]=value; break;
case 'i16': HEAP16[((ptr)>>1)]=value; break;
case 'i32': HEAP32[((ptr)>>2)]=value; break;
case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)]=tempI64[0],HEAP32[(((ptr)+(4))>>2)]=tempI64[1]); break;
case 'float': HEAPF32[((ptr)>>2)]=value; break;
case 'double': HEAPF64[((ptr)>>3)]=value; break;
default: abort('invalid type for setValue: ' + type);
}
}
Module["setValue"] = setValue;
function getValue(ptr, type, noSafe) {
type = type || 'i8';
if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
switch(type) {
case 'i1': return HEAP8[((ptr)>>0)];
case 'i8': return HEAP8[((ptr)>>0)];
case 'i16': return HEAP16[((ptr)>>1)];
case 'i32': return HEAP32[((ptr)>>2)];
case 'i64': return HEAP32[((ptr)>>2)];
case 'float': return HEAPF32[((ptr)>>2)];
case 'double': return HEAPF64[((ptr)>>3)];
default: abort('invalid type for setValue: ' + type);
}
return null;
}
Module["getValue"] = getValue;
var ALLOC_NORMAL = 0; // Tries to use _malloc()
var ALLOC_STACK = 1; // Lives for the duration of the current function call
var ALLOC_STATIC = 2; // Cannot be freed
var ALLOC_DYNAMIC = 3; // Cannot be freed except through sbrk
var ALLOC_NONE = 4; // Do not allocate
Module["ALLOC_NORMAL"] = ALLOC_NORMAL;
Module["ALLOC_STACK"] = ALLOC_STACK;
Module["ALLOC_STATIC"] = ALLOC_STATIC;
Module["ALLOC_DYNAMIC"] = ALLOC_DYNAMIC;
Module["ALLOC_NONE"] = ALLOC_NONE;
// allocate(): This is for internal use. You can use it yourself as well, but the interface
// is a little tricky (see docs right below). The reason is that it is optimized
// for multiple syntaxes to save space in generated code. So you should
// normally not use allocate(), and instead allocate memory using _malloc(),
// initialize it with setValue(), and so forth.
// @slab: An array of data, or a number. If a number, then the size of the block to allocate,
// in *bytes* (note that this is sometimes confusing: the next parameter does not
// affect this!)
// @types: Either an array of types, one for each byte (or 0 if no type at that position),
// or a single type which is used for the entire block. This only matters if there
// is initial data - if @slab is a number, then this does not matter at all and is
// ignored.
// @allocator: How to allocate memory, see ALLOC_*
function allocate(slab, types, allocator, ptr) {
var zeroinit, size;
if (typeof slab === 'number') {
zeroinit = true;
size = slab;
} else {
zeroinit = false;
size = slab.length;
}
var singleType = typeof types === 'string' ? types : null;
var ret;
if (allocator == ALLOC_NONE) {
ret = ptr;
} else {
ret = [typeof _malloc === 'function' ? _malloc : Runtime.staticAlloc, Runtime.stackAlloc, Runtime.staticAlloc, Runtime.dynamicAlloc][allocator === undefined ? ALLOC_STATIC : allocator](Math.max(size, singleType ? 1 : types.length));
}
if (zeroinit) {
var ptr = ret, stop;
assert((ret & 3) == 0);
stop = ret + (size & ~3);
for (; ptr < stop; ptr += 4) {
HEAP32[((ptr)>>2)]=0;
}
stop = ret + size;
while (ptr < stop) {
HEAP8[((ptr++)>>0)]=0;
}
return ret;
}
if (singleType === 'i8') {
if (slab.subarray || slab.slice) {
HEAPU8.set(slab, ret);
} else {
HEAPU8.set(new Uint8Array(slab), ret);
}
return ret;
}
var i = 0, type, typeSize, previousType;
while (i < size) {
var curr = slab[i];
if (typeof curr === 'function') {
curr = Runtime.getFunctionIndex(curr);
}
type = singleType || types[i];
if (type === 0) {
i++;
continue;
}
assert(type, 'Must know what type to store in allocate!');
if (type == 'i64') type = 'i32'; // special case: we have one i32 here, and one i32 later
setValue(ret+i, curr, type);
// no need to look up size unless type changes, so cache it
if (previousType !== type) {
typeSize = Runtime.getNativeTypeSize(type);
previousType = type;
}
i += typeSize;
}
return ret;
}
Module["allocate"] = allocate;
// Allocate memory during any stage of startup - static memory early on, dynamic memory later, malloc when ready
function getMemory(size) {
if (!staticSealed) return Runtime.staticAlloc(size);
if (!runtimeInitialized) return Runtime.dynamicAlloc(size);
return _malloc(size);
}
Module["getMemory"] = getMemory;
function Pointer_stringify(ptr, /* optional */ length) {
if (length === 0 || !ptr) return '';
// TODO: use TextDecoder
// Find the length, and check for UTF while doing so
var hasUtf = 0;
var t;
var i = 0;
while (1) {
assert(ptr + i < TOTAL_MEMORY);
t = HEAPU8[(((ptr)+(i))>>0)];
hasUtf |= t;
if (t == 0 && !length) break;
i++;
if (length && i == length) break;
}
if (!length) length = i;
var ret = '';
if (hasUtf < 128) {
var MAX_CHUNK = 1024; // split up into chunks, because .apply on a huge string can overflow the stack
var curr;
while (length > 0) {
curr = String.fromCharCode.apply(String, HEAPU8.subarray(ptr, ptr + Math.min(length, MAX_CHUNK)));
ret = ret ? ret + curr : curr;
ptr += MAX_CHUNK;
length -= MAX_CHUNK;
}
return ret;
}
return Module['UTF8ToString'](ptr);
}
Module["Pointer_stringify"] = Pointer_stringify;
// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.
function AsciiToString(ptr) {
var str = '';
while (1) {
var ch = HEAP8[((ptr++)>>0)];
if (!ch) return str;
str += String.fromCharCode(ch);
}
}
Module["AsciiToString"] = AsciiToString;
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP.
function stringToAscii(str, outPtr) {
return writeAsciiToMemory(str, outPtr, false);
}
Module["stringToAscii"] = stringToAscii;
// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the given array that contains uint8 values, returns
// a copy of that string as a Javascript String object.
var UTF8Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf8') : undefined;
function UTF8ArrayToString(u8Array, idx) {
var endPtr = idx;
// TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself.
// Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage.
while (u8Array[endPtr]) ++endPtr;
if (endPtr - idx > 16 && u8Array.subarray && UTF8Decoder) {
return UTF8Decoder.decode(u8Array.subarray(idx, endPtr));
} else {
var u0, u1, u2, u3, u4, u5;
var str = '';
while (1) {
// For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629
u0 = u8Array[idx++];
if (!u0) return str;
if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
u1 = u8Array[idx++] & 63;
if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
u2 = u8Array[idx++] & 63;
if ((u0 & 0xF0) == 0xE0) {
u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
} else {
u3 = u8Array[idx++] & 63;
if ((u0 & 0xF8) == 0xF0) {
u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | u3;
} else {
u4 = u8Array[idx++] & 63;
if ((u0 & 0xFC) == 0xF8) {
u0 = ((u0 & 3) << 24) | (u1 << 18) | (u2 << 12) | (u3 << 6) | u4;
} else {
u5 = u8Array[idx++] & 63;
u0 = ((u0 & 1) << 30) | (u1 << 24) | (u2 << 18) | (u3 << 12) | (u4 << 6) | u5;
}
}
}
if (u0 < 0x10000) {
str += String.fromCharCode(u0);
} else {
var ch = u0 - 0x10000;
str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
}
}
}
}
Module["UTF8ArrayToString"] = UTF8ArrayToString;
// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.
function UTF8ToString(ptr) {
return UTF8ArrayToString(HEAPU8,ptr);
}
Module["UTF8ToString"] = UTF8ToString;
// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx',
// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
// str: the Javascript string to copy.
// outU8Array: the array to copy to. Each index in this array is assumed to be one 8-byte element.
// outIdx: The starting offset in the array to begin the copying.
// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
// terminator, i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else.
// maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.
function stringToUTF8Array(str, outU8Array, outIdx, maxBytesToWrite) {
if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes.
return 0;
var startIdx = outIdx;
var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator.
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.
// See http://unicode.org/faq/utf_bom.html#utf16-3
// For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629
var u = str.charCodeAt(i); // possibly a lead surrogate
if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
if (u <= 0x7F) {
if (outIdx >= endIdx) break;
outU8Array[outIdx++] = u;
} else if (u <= 0x7FF) {
if (outIdx + 1 >= endIdx) break;
outU8Array[outIdx++] = 0xC0 | (u >> 6);
outU8Array[outIdx++] = 0x80 | (u & 63);
} else if (u <= 0xFFFF) {
if (outIdx + 2 >= endIdx) break;
outU8Array[outIdx++] = 0xE0 | (u >> 12);
outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
outU8Array[outIdx++] = 0x80 | (u & 63);
} else if (u <= 0x1FFFFF) {
if (outIdx + 3 >= endIdx) break;
outU8Array[outIdx++] = 0xF0 | (u >> 18);
outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63);
outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
outU8Array[outIdx++] = 0x80 | (u & 63);
} else if (u <= 0x3FFFFFF) {
if (outIdx + 4 >= endIdx) break;
outU8Array[outIdx++] = 0xF8 | (u >> 24);
outU8Array[outIdx++] = 0x80 | ((u >> 18) & 63);
outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63);
outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
outU8Array[outIdx++] = 0x80 | (u & 63);
} else {
if (outIdx + 5 >= endIdx) break;
outU8Array[outIdx++] = 0xFC | (u >> 30);
outU8Array[outIdx++] = 0x80 | ((u >> 24) & 63);
outU8Array[outIdx++] = 0x80 | ((u >> 18) & 63);
outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63);
outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
outU8Array[outIdx++] = 0x80 | (u & 63);
}
}
// Null-terminate the pointer to the buffer.
outU8Array[outIdx] = 0;
return outIdx - startIdx;
}
Module["stringToUTF8Array"] = stringToUTF8Array;
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Returns the number of bytes written, EXCLUDING the null terminator.
function stringToUTF8(str, outPtr, maxBytesToWrite) {
assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite);
}
Module["stringToUTF8"] = stringToUTF8;
// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte.
function lengthBytesUTF8(str) {
var len = 0;
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.
// See http://unicode.org/faq/utf_bom.html#utf16-3
var u = str.charCodeAt(i); // possibly a lead surrogate
if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
if (u <= 0x7F) {
++len;
} else if (u <= 0x7FF) {
len += 2;
} else if (u <= 0xFFFF) {
len += 3;
} else if (u <= 0x1FFFFF) {
len += 4;
} else if (u <= 0x3FFFFFF) {
len += 5;
} else {
len += 6;
}
}
return len;
}
Module["lengthBytesUTF8"] = lengthBytesUTF8;
// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.
var UTF16Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-16le') : undefined;
function UTF16ToString(ptr) {
assert(ptr % 2 == 0, 'Pointer passed to UTF16ToString must be aligned to two bytes!');
var endPtr = ptr;
// TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself.
// Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage.
var idx = endPtr >> 1;
while (HEAP16[idx]) ++idx;
endPtr = idx << 1;
if (endPtr - ptr > 32 && UTF16Decoder) {
return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr));
} else {
var i = 0;
var str = '';
while (1) {
var codeUnit = HEAP16[(((ptr)+(i*2))>>1)];
if (codeUnit == 0) return str;
++i;
// fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through.
str += String.fromCharCode(codeUnit);
}
}
}
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP.
// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
// str: the Javascript string to copy.
// outPtr: Byte address in Emscripten HEAP where to write the string to.
// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
// terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else.
// maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.
function stringToUTF16(str, outPtr, maxBytesToWrite) {
assert(outPtr % 2 == 0, 'Pointer passed to stringToUTF16 must be aligned to two bytes!');
assert(typeof maxBytesToWrite == 'number', 'stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
if (maxBytesToWrite === undefined) {
maxBytesToWrite = 0x7FFFFFFF;
}
if (maxBytesToWrite < 2) return 0;
maxBytesToWrite -= 2; // Null terminator.
var startPtr = outPtr;
var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length;
for (var i = 0; i < numCharsToWrite; ++i) {
// charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
HEAP16[((outPtr)>>1)]=codeUnit;
outPtr += 2;
}
// Null-terminate the pointer to the HEAP.
HEAP16[((outPtr)>>1)]=0;
return outPtr - startPtr;
}
// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.
function lengthBytesUTF16(str) {
return str.length*2;
}
function UTF32ToString(ptr) {
assert(ptr % 4 == 0, 'Pointer passed to UTF32ToString must be aligned to four bytes!');
var i = 0;
var str = '';
while (1) {
var utf32 = HEAP32[(((ptr)+(i*4))>>2)];
if (utf32 == 0)
return str;
++i;
// Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
// See http://unicode.org/faq/utf_bom.html#utf16-3
if (utf32 >= 0x10000) {
var ch = utf32 - 0x10000;
str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
} else {
str += String.fromCharCode(utf32);
}
}
}
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP.
// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
// str: the Javascript string to copy.
// outPtr: Byte address in Emscripten HEAP where to write the string to.
// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
// terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else.
// maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.
function stringToUTF32(str, outPtr, maxBytesToWrite) {
assert(outPtr % 4 == 0, 'Pointer passed to stringToUTF32 must be aligned to four bytes!');
assert(typeof maxBytesToWrite == 'number', 'stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
if (maxBytesToWrite === undefined) {
maxBytesToWrite = 0x7FFFFFFF;
}
if (maxBytesToWrite < 4) return 0;
var startPtr = outPtr;
var endPtr = startPtr + maxBytesToWrite - 4;
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
// See http://unicode.org/faq/utf_bom.html#utf16-3
var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {
var trailSurrogate = str.charCodeAt(++i);
codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
}
HEAP32[((outPtr)>>2)]=codeUnit;
outPtr += 4;
if (outPtr + 4 > endPtr) break;
}
// Null-terminate the pointer to the HEAP.
HEAP32[((outPtr)>>2)]=0;
return outPtr - startPtr;
}
// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.
function lengthBytesUTF32(str) {
var len = 0;
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
// See http://unicode.org/faq/utf_bom.html#utf16-3
var codeUnit = str.charCodeAt(i);
if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate.
len += 4;
}
return len;
}
function demangle(func) {
var hasLibcxxabi = !!Module['___cxa_demangle'];
if (hasLibcxxabi) {
try {
var s = func.substr(1);
var len = lengthBytesUTF8(s)+1;
var buf = _malloc(len);
stringToUTF8(s, buf, len);
var status = _malloc(4);
var ret = Module['___cxa_demangle'](buf, 0, 0, status);
if (getValue(status, 'i32') === 0 && ret) {
return Pointer_stringify(ret);
}
// otherwise, libcxxabi failed
} catch(e) {
// ignore problems here
} finally {
if (buf) _free(buf);
if (status) _free(status);
if (ret) _free(ret);
}
// failure when using libcxxabi, don't demangle
return func;
}
Runtime.warnOnce('warning: build with -s DEMANGLE_SUPPORT=1 to link in libcxxabi demangling');
return func;
}
function demangleAll(text) {
return text.replace(/__Z[\w\d_]+/g, function(x) { var y = demangle(x); return x === y ? x : (x + ' [' + y + ']') });
}
function jsStackTrace() {
var err = new Error();
if (!err.stack) {
// IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown,
// so try that as a special-case.
try {
throw new Error(0);
} catch(e) {
err = e;
}
if (!err.stack) {
return '(no stack trace available)';
}
}
return err.stack.toString();
}
function stackTrace() {
var js = jsStackTrace();
if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace']();
return demangleAll(js);
}
Module["stackTrace"] = stackTrace;
// Memory management
var PAGE_SIZE = 4096;
function alignMemoryPage(x) {
if (x % 4096 > 0) {
x += (4096 - (x % 4096));
}
return x;
}
var HEAP;
var buffer;
var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
function updateGlobalBuffer(buf) {
Module['buffer'] = buffer = buf;
}
function updateGlobalBufferViews() {
Module['HEAP8'] = HEAP8 = new Int8Array(buffer);
Module['HEAP16'] = HEAP16 = new Int16Array(buffer);
Module['HEAP32'] = HEAP32 = new Int32Array(buffer);
Module['HEAPU8'] = HEAPU8 = new Uint8Array(buffer);
Module['HEAPU16'] = HEAPU16 = new Uint16Array(buffer);
Module['HEAPU32'] = HEAPU32 = new Uint32Array(buffer);
Module['HEAPF32'] = HEAPF32 = new Float32Array(buffer);
Module['HEAPF64'] = HEAPF64 = new Float64Array(buffer);
}
var STATIC_BASE, STATICTOP, staticSealed; // static area
var STACK_BASE, STACKTOP, STACK_MAX; // stack area
var DYNAMIC_BASE, DYNAMICTOP_PTR; // dynamic area handled by sbrk
STATIC_BASE = STATICTOP = STACK_BASE = STACKTOP = STACK_MAX = DYNAMIC_BASE = DYNAMICTOP_PTR = 0;
staticSealed = false;
// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {
assert((STACK_MAX & 3) == 0);
HEAPU32[(STACK_MAX >> 2)-1] = 0x02135467;
HEAPU32[(STACK_MAX >> 2)-2] = 0x89BACDFE;
}
function checkStackCookie() {
if (HEAPU32[(STACK_MAX >> 2)-1] != 0x02135467 || HEAPU32[(STACK_MAX >> 2)-2] != 0x89BACDFE) {
abort('Stack overflow! Stack cookie has been overwritten, expected hex dwords 0x89BACDFE and 0x02135467, but received 0x' + HEAPU32[(STACK_MAX >> 2)-2].toString(16) + ' ' + HEAPU32[(STACK_MAX >> 2)-1].toString(16));
}
// Also test the global address 0 for integrity. This check is not compatible with SAFE_SPLIT_MEMORY though, since that mode already tests all address 0 accesses on its own.
if (HEAP32[0] !== 0x63736d65 /* 'emsc' */) throw 'Runtime error: The application has corrupted its heap memory area (address zero)!';
}
function abortStackOverflow(allocSize) {
abort('Stack overflow! Attempted to allocate ' + allocSize + ' bytes on the stack, but stack has only ' + (STACK_MAX - asm.stackSave() + allocSize) + ' bytes available!');
}
function abortOnCannotGrowMemory() {
abort('Cannot enlarge memory arrays. Either (1) compile with -s TOTAL_MEMORY=X with X higher than the current value ' + TOTAL_MEMORY + ', (2) compile with -s ALLOW_MEMORY_GROWTH=1 which adjusts the size at runtime but prevents some optimizations, (3) set Module.TOTAL_MEMORY to a higher value before the program runs, or if you want malloc to return NULL (0) instead of this abort, compile with -s ABORTING_MALLOC=0 ');
}
function enlargeMemory() {
abortOnCannotGrowMemory();
}
var TOTAL_STACK = Module['TOTAL_STACK'] || 5242880;
var TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 16777216;
var WASM_PAGE_SIZE = 64 * 1024;
var totalMemory = WASM_PAGE_SIZE;
while (totalMemory < TOTAL_MEMORY || totalMemory < 2*TOTAL_STACK) {
if (totalMemory < 16*1024*1024) {
totalMemory *= 2;
} else {
totalMemory += 16*1024*1024;
}
}
if (totalMemory !== TOTAL_MEMORY) {
Module.printErr('increasing TOTAL_MEMORY to ' + totalMemory + ' to be compliant with the asm.js spec (and given that TOTAL_STACK=' + TOTAL_STACK + ')');
TOTAL_MEMORY = totalMemory;
}
// Initialize the runtime's memory
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
assert(typeof Int32Array !== 'undefined' && typeof Float64Array !== 'undefined' && !!(new Int32Array(1)['subarray']) && !!(new Int32Array(1)['set']),
'JS engine does not provide full typed array support');
// Use a provided buffer, if there is one, or else allocate a new one
if (Module['buffer']) {
buffer = Module['buffer'];
assert(buffer.byteLength === TOTAL_MEMORY, 'provided buffer should be ' + TOTAL_MEMORY + ' bytes, but it is ' + buffer.byteLength);
} else {
// Use a WebAssembly memory where available
if (typeof WebAssembly === 'object' && typeof WebAssembly.Memory === 'function') {
assert(TOTAL_MEMORY % WASM_PAGE_SIZE === 0);
Module['wasmMemory'] = new WebAssembly.Memory({ initial: TOTAL_MEMORY / WASM_PAGE_SIZE, maximum: TOTAL_MEMORY / WASM_PAGE_SIZE });
buffer = Module['wasmMemory'].buffer;
} else
{
buffer = new ArrayBuffer(TOTAL_MEMORY);
}
assert(buffer.byteLength === TOTAL_MEMORY);
}
updateGlobalBufferViews();
function getTotalMemory() {
return TOTAL_MEMORY;
}
// Endianness check (note: assumes compiler arch was little-endian)
HEAP32[0] = 0x63736d65; /* 'emsc' */
HEAP16[1] = 0x6373;
if (HEAPU8[2] !== 0x73 || HEAPU8[3] !== 0x63) throw 'Runtime error: expected the system to be little-endian!';
Module['HEAP'] = HEAP;
Module['buffer'] = buffer;
Module['HEAP8'] = HEAP8;
Module['HEAP16'] = HEAP16;
Module['HEAP32'] = HEAP32;
Module['HEAPU8'] = HEAPU8;
Module['HEAPU16'] = HEAPU16;
Module['HEAPU32'] = HEAPU32;
Module['HEAPF32'] = HEAPF32;
Module['HEAPF64'] = HEAPF64;
function callRuntimeCallbacks(callbacks) {
while(callbacks.length > 0) {
var callback = callbacks.shift();
if (typeof callback == 'function') {
callback();
continue;
}
var func = callback.func;
if (typeof func === 'number') {
if (callback.arg === undefined) {
Runtime.dynCall('v', func);
} else {
Runtime.dynCall('vi', func, [callback.arg]);
}
} else {
func(callback.arg === undefined ? null : callback.arg);
}
}
}
var __ATPRERUN__ = []; // functions called before the runtime is initialized
var __ATINIT__ = []; // functions called during startup
var __ATMAIN__ = []; // functions called when main() is to be run
var __ATEXIT__ = []; // functions called during shutdown
var __ATPOSTRUN__ = []; // functions called after the runtime has exited
var runtimeInitialized = false;
var runtimeExited = false;
function preRun() {
// compatibility - merge in anything from Module['preRun'] at this time
if (Module['preRun']) {
if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
while (Module['preRun'].length) {
addOnPreRun(Module['preRun'].shift());
}
}
callRuntimeCallbacks(__ATPRERUN__);
}
function ensureInitRuntime() {
checkStackCookie();
if (runtimeInitialized) return;
runtimeInitialized = true;
callRuntimeCallbacks(__ATINIT__);
}
function preMain() {
checkStackCookie();
callRuntimeCallbacks(__ATMAIN__);
}
function exitRuntime() {
checkStackCookie();
callRuntimeCallbacks(__ATEXIT__);
runtimeExited = true;
}
function postRun() {
checkStackCookie();
// compatibility - merge in anything from Module['postRun'] at this time
if (Module['postRun']) {
if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
while (Module['postRun'].length) {
addOnPostRun(Module['postRun'].shift());
}
}
callRuntimeCallbacks(__ATPOSTRUN__);
}
function addOnPreRun(cb) {
__ATPRERUN__.unshift(cb);
}
Module["addOnPreRun"] = addOnPreRun;
function addOnInit(cb) {
__ATINIT__.unshift(cb);
}
Module["addOnInit"] = addOnInit;
function addOnPreMain(cb) {
__ATMAIN__.unshift(cb);
}
Module["addOnPreMain"] = addOnPreMain;
function addOnExit(cb) {
__ATEXIT__.unshift(cb);
}
Module["addOnExit"] = addOnExit;
function addOnPostRun(cb) {
__ATPOSTRUN__.unshift(cb);
}
Module["addOnPostRun"] = addOnPostRun;
// Tools
function intArrayFromString(stringy, dontAddNull, length /* optional */) {
var len = length > 0 ? length : lengthBytesUTF8(stringy)+1;
var u8array = new Array(len);
var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);
if (dontAddNull) u8array.length = numBytesWritten;
return u8array;
}
Module["intArrayFromString"] = intArrayFromString;
function intArrayToString(array) {
var ret = [];
for (var i = 0; i < array.length; i++) {
var chr = array[i];
if (chr > 0xFF) {
assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ') at offset ' + i + ' not in 0x00-0xFF.');
chr &= 0xFF;
}
ret.push(String.fromCharCode(chr));
}
return ret.join('');
}
Module["intArrayToString"] = intArrayToString;
// Deprecated: This function should not be called because it is unsafe and does not provide
// a maximum length limit of how many bytes it is allowed to write. Prefer calling the
// function stringToUTF8Array() instead, which takes in a maximum length that can be used
// to be secure from out of bounds writes.
function writeStringToMemory(string, buffer, dontAddNull) {
Runtime.warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!');
var lastChar, end;
if (dontAddNull) {
// stringToUTF8Array always appends null. If we don't want to do that, remember the
// character that existed at the location where the null will be placed, and restore
// that after the write (below).
end = buffer + lengthBytesUTF8(string);
lastChar = HEAP8[end];
}
stringToUTF8(string, buffer, Infinity);
if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character.
}
Module["writeStringToMemory"] = writeStringToMemory;
function writeArrayToMemory(array, buffer) {
assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)')
HEAP8.set(array, buffer);
}
Module["writeArrayToMemory"] = writeArrayToMemory;
function writeAsciiToMemory(str, buffer, dontAddNull) {
for (var i = 0; i < str.length; ++i) {
assert(str.charCodeAt(i) === str.charCodeAt(i)&0xff);
HEAP8[((buffer++)>>0)]=str.charCodeAt(i);
}
// Null-terminate the pointer to the HEAP.
if (!dontAddNull) HEAP8[((buffer)>>0)]=0;
}
Module["writeAsciiToMemory"] = writeAsciiToMemory;
function unSign(value, bits, ignore) {
if (value >= 0) {
return value;
}
return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value // Need some trickery, since if bits == 32, we are right at the limit of the bits JS uses in bitshifts
: Math.pow(2, bits) + value;
}
function reSign(value, bits, ignore) {
if (value <= 0) {
return value;
}
var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32
: Math.pow(2, bits-1);
if (value >= half && (bits <= 32 || value > half)) { // for huge values, we can hit the precision limit and always get true here. so don't do that
// but, in general there is no perfect solution here. With 64-bit ints, we get rounding and errors
// TODO: In i64 mode 1, resign the two parts separately and safely
value = -2*half + value; // Cannot bitshift half, as it may be at the limit of the bits JS uses in bitshifts
}
return value;
}
// check for imul support, and also for correctness ( https://bugs.webkit.org/show_bug.cgi?id=126345 )
if (!Math['imul'] || Math['imul'](0xffffffff, 5) !== -5) Math['imul'] = function imul(a, b) {
var ah = a >>> 16;
var al = a & 0xffff;
var bh = b >>> 16;
var bl = b & 0xffff;
return (al*bl + ((ah*bl + al*bh) << 16))|0;
};
Math.imul = Math['imul'];
if (!Math['fround']) {
var froundBuffer = new Float32Array(1);
Math['fround'] = function(x) { froundBuffer[0] = x; return froundBuffer[0] };
}
Math.fround = Math['fround'];
if (!Math['clz32']) Math['clz32'] = function(x) {
x = x >>> 0;
for (var i = 0; i < 32; i++) {
if (x & (1 << (31 - i))) return i;
}
return 32;
};
Math.clz32 = Math['clz32']
if (!Math['trunc']) Math['trunc'] = function(x) {
return x < 0 ? Math.ceil(x) : Math.floor(x);
};
Math.trunc = Math['trunc'];
var Math_abs = Math.abs;
var Math_cos = Math.cos;
var Math_sin = Math.sin;
var Math_tan = Math.tan;
var Math_acos = Math.acos;
var Math_asin = Math.asin;
var Math_atan = Math.atan;
var Math_atan2 = Math.atan2;
var Math_exp = Math.exp;
var Math_log = Math.log;
var Math_sqrt = Math.sqrt;
var Math_ceil = Math.ceil;
var Math_floor = Math.floor;
var Math_pow = Math.pow;
var Math_imul = Math.imul;
var Math_fround = Math.fround;
var Math_round = Math.round;
var Math_min = Math.min;
var Math_clz32 = Math.clz32;
var Math_trunc = Math.trunc;
// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// PRE_RUN_ADDITIONS (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;
var runDependencyWatcher = null;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};
function getUniqueRunDependency(id) {
var orig = id;
while (1) {
if (!runDependencyTracking[id]) return id;
id = orig + Math.random();
}
return id;
}
function addRunDependency(id) {
runDependencies++;
if (Module['monitorRunDependencies']) {
Module['monitorRunDependencies'](runDependencies);
}
if (id) {
assert(!runDependencyTracking[id]);
runDependencyTracking[id] = 1;
if (runDependencyWatcher === null && typeof setInterval !== 'undefined') {
// Check for missing dependencies every few seconds
runDependencyWatcher = setInterval(function() {
if (ABORT) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null;
return;
}
var shown = false;
for (var dep in runDependencyTracking) {
if (!shown) {
shown = true;
Module.printErr('still waiting on run dependencies:');
}
Module.printErr('dependency: ' + dep);
}
if (shown) {
Module.printErr('(end of list)');
}
}, 10000);
}
} else {
Module.printErr('warning: run dependency added without ID');
}
}
Module["addRunDependency"] = addRunDependency;
function removeRunDependency(id) {
runDependencies--;
if (Module['monitorRunDependencies']) {
Module['monitorRunDependencies'](runDependencies);
}
if (id) {
assert(runDependencyTracking[id]);
delete runDependencyTracking[id];
} else {
Module.printErr('warning: run dependency removed without ID');
}
if (runDependencies == 0) {
if (runDependencyWatcher !== null) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null;
}
if (dependenciesFulfilled) {
var callback = dependenciesFulfilled;
dependenciesFulfilled = null;
callback(); // can add another dependenciesFulfilled
}
}
}
Module["removeRunDependency"] = removeRunDependency;
Module["preloadedImages"] = {}; // maps url to image data
Module["preloadedAudios"] = {}; // maps url to audio data
var memoryInitializer = null;
// === Body ===
var ASM_CONSTS = [];
STATIC_BASE = 1024;
STATICTOP = STATIC_BASE + 16352;
/* global initializers */ __ATINIT__.push();
memoryInitializer = Module["wasmJSMethod"].indexOf("asmjs") >= 0 || Module["wasmJSMethod"].indexOf("interpret-asm2wasm") >= 0 ? "hello.js.mem" : null;
var STATIC_BUMP = 16352;
Module["STATIC_BASE"] = STATIC_BASE;
Module["STATIC_BUMP"] = STATIC_BUMP;
/* no memory initializer */
var tempDoublePtr = STATICTOP; STATICTOP += 16;
assert(tempDoublePtr % 8 == 0);
function copyTempFloat(ptr) { // functions, because inlining this code increases code size too much
HEAP8[tempDoublePtr] = HEAP8[ptr];
HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];
HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];
HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];
}
function copyTempDouble(ptr) {
HEAP8[tempDoublePtr] = HEAP8[ptr];
HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];
HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];
HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];
HEAP8[tempDoublePtr+4] = HEAP8[ptr+4];
HEAP8[tempDoublePtr+5] = HEAP8[ptr+5];
HEAP8[tempDoublePtr+6] = HEAP8[ptr+6];
HEAP8[tempDoublePtr+7] = HEAP8[ptr+7];
}
// {{PRE_LIBRARY}}
function _pthread_mutex_destroy() {}
function __ZSt18uncaught_exceptionv() { // std::uncaught_exception()
return !!__ZSt18uncaught_exceptionv.uncaught_exception;
}
var EXCEPTIONS={last:0,caught:[],infos:{},deAdjust:function (adjusted) {
if (!adjusted || EXCEPTIONS.infos[adjusted]) return adjusted;
for (var ptr in EXCEPTIONS.infos) {
var info = EXCEPTIONS.infos[ptr];
if (info.adjusted === adjusted) {
return ptr;
}
}
return adjusted;
},addRef:function (ptr) {
if (!ptr) return;
var info = EXCEPTIONS.infos[ptr];
info.refcount++;
},decRef:function (ptr) {
if (!ptr) return;
var info = EXCEPTIONS.infos[ptr];
assert(info.refcount > 0);
info.refcount--;
// A rethrown exception can reach refcount 0; it must not be discarded
// Its next handler will clear the rethrown flag and addRef it, prior to
// final decRef and destruction here
if (info.refcount === 0 && !info.rethrown) {
if (info.destructor) {
Runtime.dynCall('vi', info.destructor, [ptr]);
}
delete EXCEPTIONS.infos[ptr];
___cxa_free_exception(ptr);
}
},clearRef:function (ptr) {
if (!ptr) return;
var info = EXCEPTIONS.infos[ptr];
info.refcount = 0;
}};
function ___resumeException(ptr) {
if (!EXCEPTIONS.last) { EXCEPTIONS.last = ptr; }
throw ptr;
}function ___cxa_find_matching_catch() {
var thrown = EXCEPTIONS.last;
if (!thrown) {
// just pass through the null ptr
return ((asm["setTempRet0"](0),0)|0);
}
var info = EXCEPTIONS.infos[thrown];
var throwntype = info.type;
if (!throwntype) {
// just pass through the thrown ptr
return ((asm["setTempRet0"](0),thrown)|0);
}
var typeArray = Array.prototype.slice.call(arguments);
var pointer = Module['___cxa_is_pointer_type'](throwntype);
// can_catch receives a **, add indirection
if (!___cxa_find_matching_catch.buffer) ___cxa_find_matching_catch.buffer = _malloc(4);
HEAP32[((___cxa_find_matching_catch.buffer)>>2)]=thrown;
thrown = ___cxa_find_matching_catch.buffer;
// The different catch blocks are denoted by different types.
// Due to inheritance, those types may not precisely match the
// type of the thrown object. Find one which matches, and
// return the type of the catch block which should be called.
for (var i = 0; i < typeArray.length; i++) {
if (typeArray[i] && Module['___cxa_can_catch'](typeArray[i], throwntype, thrown)) {
thrown = HEAP32[((thrown)>>2)]; // undo indirection
info.adjusted = thrown;
return ((asm["setTempRet0"](typeArray[i]),thrown)|0);
}
}
// Shouldn't happen unless we have bogus data in typeArray
// or encounter a type for which emscripten doesn't have suitable
// typeinfo defined. Best-efforts match just in case.
thrown = HEAP32[((thrown)>>2)]; // undo indirection
return ((asm["setTempRet0"](throwntype),thrown)|0);
}function ___cxa_throw(ptr, type, destructor) {
EXCEPTIONS.infos[ptr] = {
ptr: ptr,
adjusted: ptr,
type: type,
destructor: destructor,
refcount: 0,
caught: false,
rethrown: false
};
EXCEPTIONS.last = ptr;
if (!("uncaught_exception" in __ZSt18uncaught_exceptionv)) {
__ZSt18uncaught_exceptionv.uncaught_exception = 1;
} else {
__ZSt18uncaught_exceptionv.uncaught_exception++;
}
throw ptr;
}
Module["_memset"] = _memset;
function __Unwind_FindEnclosingFunction() {
return 0; // we cannot succeed
}
Module["_pthread_mutex_lock"] = _pthread_mutex_lock;
function _pthread_mutexattr_settype() {}
function _abort() {
Module['abort']();
}
function _pthread_cond_destroy() { return 0; }
function _pthread_condattr_destroy() { return 0; }
function _free() {
}
Module["_free"] = _free;function ___cxa_free_exception(ptr) {
try {
return _free(ptr);
} catch(e) { // XXX FIXME
Module.printErr('exception during cxa_free_exception: ' + e);
}
}
function _pthread_condattr_setclock() { return 0; }
function ___lock() {}
function ___unlock() {}
function _pthread_mutexattr_init() {}
var PTHREAD_SPECIFIC={};function _pthread_getspecific(key) {
return PTHREAD_SPECIFIC[key] || 0;
}
var PTHREAD_SPECIFIC_NEXT_KEY=1;
var ERRNO_CODES={EPERM:1,ENOENT:2,ESRCH:3,EINTR:4,EIO:5,ENXIO:6,E2BIG:7,ENOEXEC:8,EBADF:9,ECHILD:10,EAGAIN:11,EWOULDBLOCK:11,ENOMEM:12,EACCES:13,EFAULT:14,ENOTBLK:15,EBUSY:16,EEXIST:17,EXDEV:18,ENODEV:19,ENOTDIR:20,EISDIR:21,EINVAL:22,ENFILE:23,EMFILE:24,ENOTTY:25,ETXTBSY:26,EFBIG:27,ENOSPC:28,ESPIPE:29,EROFS:30,EMLINK:31,EPIPE:32,EDOM:33,ERANGE:34,ENOMSG:42,EIDRM:43,ECHRNG:44,EL2NSYNC:45,EL3HLT:46,EL3RST:47,ELNRNG:48,EUNATCH:49,ENOCSI:50,EL2HLT:51,EDEADLK:35,ENOLCK:37,EBADE:52,EBADR:53,EXFULL:54,ENOANO:55,EBADRQC:56,EBADSLT:57,EDEADLOCK:35,EBFONT:59,ENOSTR:60,ENODATA:61,ETIME:62,ENOSR:63,ENONET:64,ENOPKG:65,EREMOTE:66,ENOLINK:67,EADV:68,ESRMNT:69,ECOMM:70,EPROTO:71,EMULTIHOP:72,EDOTDOT:73,EBADMSG:74,ENOTUNIQ:76,EBADFD:77,EREMCHG:78,ELIBACC:79,ELIBBAD:80,ELIBSCN:81,ELIBMAX:82,ELIBEXEC:83,ENOSYS:38,ENOTEMPTY:39,ENAMETOOLONG:36,ELOOP:40,EOPNOTSUPP:95,EPFNOSUPPORT:96,ECONNRESET:104,ENOBUFS:105,EAFNOSUPPORT:97,EPROTOTYPE:91,ENOTSOCK:88,ENOPROTOOPT:92,ESHUTDOWN:108,ECONNREFUSED:111,EADDRINUSE:98,ECONNABORTED:103,ENETUNREACH:101,ENETDOWN:100,ETIMEDOUT:110,EHOSTDOWN:112,EHOSTUNREACH:113,EINPROGRESS:115,EALREADY:114,EDESTADDRREQ:89,EMSGSIZE:90,EPROTONOSUPPORT:93,ESOCKTNOSUPPORT:94,EADDRNOTAVAIL:99,ENETRESET:102,EISCONN:106,ENOTCONN:107,ETOOMANYREFS:109,EUSERS:87,EDQUOT:122,ESTALE:116,ENOTSUP:95,ENOMEDIUM:123,EILSEQ:84,EOVERFLOW:75,ECANCELED:125,ENOTRECOVERABLE:131,EOWNERDEAD:130,ESTRPIPE:86};function _pthread_key_create(key, destructor) {
if (key == 0) {
return ERRNO_CODES.EINVAL;
}
HEAP32[((key)>>2)]=PTHREAD_SPECIFIC_NEXT_KEY;
// values start at 0
PTHREAD_SPECIFIC[PTHREAD_SPECIFIC_NEXT_KEY] = 0;
PTHREAD_SPECIFIC_NEXT_KEY++;
return 0;
}
function _pthread_mutex_init() {}
function _pthread_key_delete(key) {
if (key in PTHREAD_SPECIFIC) {
delete PTHREAD_SPECIFIC[key];
return 0;
}
return ERRNO_CODES.EINVAL;
}
Module["_pthread_self"] = _pthread_self;
function _pthread_setspecific(key, value) {
if (!(key in PTHREAD_SPECIFIC)) {
return ERRNO_CODES.EINVAL;
}
PTHREAD_SPECIFIC[key] = value;
return 0;
}
function _pthread_mutexattr_destroy() {}
function _emscripten_memcpy_big(dest, src, num) {
HEAPU8.set(HEAPU8.subarray(src, src+num), dest);
return dest;
}
Module["_memcpy"] = _memcpy;
Module["_memmove"] = _memmove;
function _malloc(bytes) {
/* Over-allocate to make sure it is byte-aligned by 8.
* This will leak memory, but this is only the dummy
* implementation (replaced by dlmalloc normally) so
* not an issue.
*/
var ptr = Runtime.dynamicAlloc(bytes + 8);
return (ptr+8) & 0xFFFFFFF8;
}
Module["_malloc"] = _malloc;function ___cxa_allocate_exception(size) {
return _malloc(size);
}
var ERRNO_MESSAGES={0:"Success",1:"Not super-user",2:"No such file or directory",3:"No such process",4:"Interrupted system call",5:"I/O error",6:"No such device or address",7:"Arg list too long",8:"Exec format error",9:"Bad file number",10:"No children",11:"No more processes",12:"Not enough core",13:"Permission denied",14:"Bad address",15:"Block device required",16:"Mount device busy",17:"File exists",18:"Cross-device link",19:"No such device",20:"Not a directory",21:"Is a directory",22:"Invalid argument",23:"Too many open files in system",24:"Too many open files",25:"Not a typewriter",26:"Text file busy",27:"File too large",28:"No space left on device",29:"Illegal seek",30:"Read only file system",31:"Too many links",32:"Broken pipe",33:"Math arg out of domain of func",34:"Math result not representable",35:"File locking deadlock error",36:"File or path name too long",37:"No record locks available",38:"Function not implemented",39:"Directory not empty",40:"Too many symbolic links",42:"No message of desired type",43:"Identifier removed",44:"Channel number out of range",45:"Level 2 not synchronized",46:"Level 3 halted",47:"Level 3 reset",48:"Link number out of range",49:"Protocol driver not attached",50:"No CSI structure available",51:"Level 2 halted",52:"Invalid exchange",53:"Invalid request descriptor",54:"Exchange full",55:"No anode",56:"Invalid request code",57:"Invalid slot",59:"Bad font file fmt",60:"Device not a stream",61:"No data (for no delay io)",62:"Timer expired",63:"Out of streams resources",64:"Machine is not on the network",65:"Package not installed",66:"The object is remote",67:"The link has been severed",68:"Advertise error",69:"Srmount error",70:"Communication error on send",71:"Protocol error",72:"Multihop attempted",73:"Cross mount point (not really error)",74:"Trying to read unreadable message",75:"Value too large for defined data type",76:"Given log. name not unique",77:"f.d. invalid for this operation",78:"Remote address changed",79:"Can access a needed shared lib",80:"Accessing a corrupted shared lib",81:".lib section in a.out corrupted",82:"Attempting to link in too many libs",83:"Attempting to exec a shared library",84:"Illegal byte sequence",86:"Streams pipe error",87:"Too many users",88:"Socket operation on non-socket",89:"Destination address required",90:"Message too long",91:"Protocol wrong type for socket",92:"Protocol not available",93:"Unknown protocol",94:"Socket type not supported",95:"Not supported",96:"Protocol family not supported",97:"Address family not supported by protocol family",98:"Address already in use",99:"Address not available",100:"Network interface is not configured",101:"Network is unreachable",102:"Connection reset by network",103:"Connection aborted",104:"Connection reset by peer",105:"No buffer space available",106:"Socket is already connected",107:"Socket is not connected",108:"Can't send after socket shutdown",109:"Too many references",110:"Connection timed out",111:"Connection refused",112:"Host is down",113:"Host is unreachable",114:"Socket already connected",115:"Connection already in progress",116:"Stale file handle",122:"Quota exceeded",123:"No medium (in tape drive)",125:"Operation canceled",130:"Previous owner died",131:"State not recoverable"};
function ___setErrNo(value) {
if (Module['___errno_location']) HEAP32[((Module['___errno_location']())>>2)]=value;
else Module.printErr('failed to set errno from JS');
return value;
}
var PATH={splitPath:function (filename) {
var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
return splitPathRe.exec(filename).slice(1);
},normalizeArray:function (parts, allowAboveRoot) {
// if the path tries to go above the root, `up` ends up > 0
var up = 0;
for (var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last === '.') {
parts.splice(i, 1);
} else if (last === '..') {
parts.splice(i, 1);
up++;
} else if (up) {
parts.splice(i, 1);
up--;
}
}
// if the path is allowed to go above the root, restore leading ..s
if (allowAboveRoot) {
for (; up--; up) {
parts.unshift('..');
}
}
return parts;
},normalize:function (path) {
var isAbsolute = path.charAt(0) === '/',
trailingSlash = path.substr(-1) === '/';
// Normalize the path
path = PATH.normalizeArray(path.split('/').filter(function(p) {
return !!p;
}), !isAbsolute).join('/');
if (!path && !isAbsolute) {
path = '.';
}
if (path && trailingSlash) {
path += '/';
}
return (isAbsolute ? '/' : '') + path;
},dirname:function (path) {
var result = PATH.splitPath(path),
root = result[0],
dir = result[1];
if (!root && !dir) {
// No dirname whatsoever
return '.';
}
if (dir) {
// It has a dirname, strip trailing slash
dir = dir.substr(0, dir.length - 1);
}
return root + dir;
},basename:function (path) {
// EMSCRIPTEN return '/'' for '/', not an empty string
if (path === '/') return '/';
var lastSlash = path.lastIndexOf('/');
if (lastSlash === -1) return path;
return path.substr(lastSlash+1);
},extname:function (path) {
return PATH.splitPath(path)[3];
},join:function () {
var paths = Array.prototype.slice.call(arguments, 0);
return PATH.normalize(paths.join('/'));
},join2:function (l, r) {
return PATH.normalize(l + '/' + r);
},resolve:function () {
var resolvedPath = '',
resolvedAbsolute = false;
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = (i >= 0) ? arguments[i] : FS.cwd();
// Skip empty and invalid entries
if (typeof path !== 'string') {
throw new TypeError('Arguments to path.resolve must be strings');
} else if (!path) {
return ''; // an invalid portion invalidates the whole thing
}
resolvedPath = path + '/' + resolvedPath;
resolvedAbsolute = path.charAt(0) === '/';
}
// At this point the path should be resolved to a full absolute path, but
// handle relative paths to be safe (might happen when process.cwd() fails)
resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter(function(p) {
return !!p;
}), !resolvedAbsolute).join('/');
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
},relative:function (from, to) {
from = PATH.resolve(from).substr(1);
to = PATH.resolve(to).substr(1);
function trim(arr) {
var start = 0;
for (; start < arr.length; start++) {
if (arr[start] !== '') break;
}
var end = arr.length - 1;
for (; end >= 0; end--) {
if (arr[end] !== '') break;
}
if (start > end) return [];
return arr.slice(start, end - start + 1);
}
var fromParts = trim(from.split('/'));
var toParts = trim(to.split('/'));
var length = Math.min(fromParts.length, toParts.length);
var samePartsLength = length;
for (var i = 0; i < length; i++) {
if (fromParts[i] !== toParts[i]) {
samePartsLength = i;
break;
}
}
var outputParts = [];
for (var i = samePartsLength; i < fromParts.length; i++) {
outputParts.push('..');
}
outputParts = outputParts.concat(toParts.slice(samePartsLength));
return outputParts.join('/');
}};
var TTY={ttys:[],init:function () {
// https://github.com/kripken/emscripten/pull/1555
// if (ENVIRONMENT_IS_NODE) {
// // currently, FS.init does not distinguish if process.stdin is a file or TTY
// // device, it always assumes it's a TTY device. because of this, we're forcing
// // process.stdin to UTF8 encoding to at least make stdin reading compatible
// // with text files until FS.init can be refactored.
// process['stdin']['setEncoding']('utf8');
// }
},shutdown:function () {
// https://github.com/kripken/emscripten/pull/1555
// if (ENVIRONMENT_IS_NODE) {
// // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
// // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
// // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
// // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
// // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
// process['stdin']['pause']();
// }
},register:function (dev, ops) {
TTY.ttys[dev] = { input: [], output: [], ops: ops };
FS.registerDevice(dev, TTY.stream_ops);
},stream_ops:{open:function (stream) {
var tty = TTY.ttys[stream.node.rdev];
if (!tty) {
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
}
stream.tty = tty;
stream.seekable = false;
},close:function (stream) {
// flush any pending line data
stream.tty.ops.flush(stream.tty);
},flush:function (stream) {
stream.tty.ops.flush(stream.tty);
},read:function (stream, buffer, offset, length, pos /* ignored */) {
if (!stream.tty || !stream.tty.ops.get_char) {
throw new FS.ErrnoError(ERRNO_CODES.ENXIO);
}
var bytesRead = 0;
for (var i = 0; i < length; i++) {
var result;
try {
result = stream.tty.ops.get_char(stream.tty);
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES.EIO);
}
if (result === undefined && bytesRead === 0) {
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
}
if (result === null || result === undefined) break;
bytesRead++;
buffer[offset+i] = result;
}
if (bytesRead) {
stream.node.timestamp = Date.now();
}
return bytesRead;
},write:function (stream, buffer, offset, length, pos) {
if (!stream.tty || !stream.tty.ops.put_char) {
throw new FS.ErrnoError(ERRNO_CODES.ENXIO);
}
for (var i = 0; i < length; i++) {
try {
stream.tty.ops.put_char(stream.tty, buffer[offset+i]);
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES.EIO);
}
}
if (length) {
stream.node.timestamp = Date.now();
}
return i;
}},default_tty_ops:{get_char:function (tty) {
if (!tty.input.length) {
var result = null;
if (ENVIRONMENT_IS_NODE) {
// we will read data by chunks of BUFSIZE
var BUFSIZE = 256;
var buf = new Buffer(BUFSIZE);
var bytesRead = 0;
var isPosixPlatform = (process.platform != 'win32'); // Node doesn't offer a direct check, so test by exclusion
var fd = process.stdin.fd;
if (isPosixPlatform) {
// Linux and Mac cannot use process.stdin.fd (which isn't set up as sync)
var usingDevice = false;
try {
fd = fs.openSync('/dev/stdin', 'r');
usingDevice = true;
} catch (e) {}
}
try {
bytesRead = fs.readSync(fd, buf, 0, BUFSIZE, null);
} catch(e) {
// Cross-platform differences: on Windows, reading EOF throws an exception, but on other OSes,
// reading EOF returns 0. Uniformize behavior by treating the EOF exception to return 0.
if (e.toString().indexOf('EOF') != -1) bytesRead = 0;
else throw e;
}
if (usingDevice) { fs.closeSync(fd); }
if (bytesRead > 0) {
result = buf.slice(0, bytesRead).toString('utf-8');
} else {
result = null;
}
} else if (typeof window != 'undefined' &&
typeof window.prompt == 'function') {
// Browser.
result = window.prompt('Input: '); // returns null on cancel
if (result !== null) {
result += '\n';
}
} else if (typeof readline == 'function') {
// Command line.
result = readline();
if (result !== null) {
result += '\n';
}
}
if (!result) {
return null;
}
tty.input = intArrayFromString(result, true);
}
return tty.input.shift();
},put_char:function (tty, val) {
if (val === null || val === 10) {
Module['print'](UTF8ArrayToString(tty.output, 0));
tty.output = [];
} else {
if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle.
}
},flush:function (tty) {
if (tty.output && tty.output.length > 0) {
Module['print'](UTF8ArrayToString(tty.output, 0));
tty.output = [];
}
}},default_tty1_ops:{put_char:function (tty, val) {
if (val === null || val === 10) {
Module['printErr'](UTF8ArrayToString(tty.output, 0));
tty.output = [];
} else {
if (val != 0) tty.output.push(val);
}
},flush:function (tty) {
if (tty.output && tty.output.length > 0) {
Module['printErr'](UTF8ArrayToString(tty.output, 0));
tty.output = [];
}
}}};
var MEMFS={ops_table:null,mount:function (mount) {
return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
},createNode:function (parent, name, mode, dev) {
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
// no supported
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
if (!MEMFS.ops_table) {
MEMFS.ops_table = {
dir: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
lookup: MEMFS.node_ops.lookup,
mknod: MEMFS.node_ops.mknod,
rename: MEMFS.node_ops.rename,
unlink: MEMFS.node_ops.unlink,
rmdir: MEMFS.node_ops.rmdir,
readdir: MEMFS.node_ops.readdir,
symlink: MEMFS.node_ops.symlink
},
stream: {
llseek: MEMFS.stream_ops.llseek
}
},
file: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
},
stream: {
llseek: MEMFS.stream_ops.llseek,
read: MEMFS.stream_ops.read,
write: MEMFS.stream_ops.write,
allocate: MEMFS.stream_ops.allocate,
mmap: MEMFS.stream_ops.mmap,
msync: MEMFS.stream_ops.msync
}
},
link: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
readlink: MEMFS.node_ops.readlink
},
stream: {}
},
chrdev: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
},
stream: FS.chrdev_stream_ops
}
};
}
var node = FS.createNode(parent, name, mode, dev);
if (FS.isDir(node.mode)) {
node.node_ops = MEMFS.ops_table.dir.node;
node.stream_ops = MEMFS.ops_table.dir.stream;
node.contents = {};
} else if (FS.isFile(node.mode)) {
node.node_ops = MEMFS.ops_table.file.node;
node.stream_ops = MEMFS.ops_table.file.stream;
node.usedBytes = 0; // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity.
// When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred
// for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size
// penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme.
node.contents = null;
} else if (FS.isLink(node.mode)) {
node.node_ops = MEMFS.ops_table.link.node;
node.stream_ops = MEMFS.ops_table.link.stream;
} else if (FS.isChrdev(node.mode)) {
node.node_ops = MEMFS.ops_table.chrdev.node;
node.stream_ops = MEMFS.ops_table.chrdev.stream;
}
node.timestamp = Date.now();
// add the new node to the parent
if (parent) {
parent.contents[name] = node;
}
return node;
},getFileDataAsRegularArray:function (node) {
if (node.contents && node.contents.subarray) {
var arr = [];
for (var i = 0; i < node.usedBytes; ++i) arr.push(node.contents[i]);
return arr; // Returns a copy of the original data.
}
return node.contents; // No-op, the file contents are already in a JS array. Return as-is.
},getFileDataAsTypedArray:function (node) {
if (!node.contents) return new Uint8Array;
if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes.
return new Uint8Array(node.contents);
},expandFileStorage:function (node, newCapacity) {
// If we are asked to expand the size of a file that already exists, revert to using a standard JS array to store the file
// instead of a typed array. This makes resizing the array more flexible because we can just .push() elements at the back to
// increase the size.
if (node.contents && node.contents.subarray && newCapacity > node.contents.length) {
node.contents = MEMFS.getFileDataAsRegularArray(node);
node.usedBytes = node.contents.length; // We might be writing to a lazy-loaded file which had overridden this property, so force-reset it.
}
if (!node.contents || node.contents.subarray) { // Keep using a typed array if creating a new storage, or if old one was a typed array as well.
var prevCapacity = node.contents ? node.contents.length : 0;
if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough.
// Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
// For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
// avoid overshooting the allocation cap by a very large margin.
var CAPACITY_DOUBLING_MAX = 1024 * 1024;
newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) | 0);
if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding.
var oldContents = node.contents;
node.contents = new Uint8Array(newCapacity); // Allocate new storage.
if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage.
return;
}
// Not using a typed array to back the file storage. Use a standard JS array instead.
if (!node.contents && newCapacity > 0) node.contents = [];
while (node.contents.length < newCapacity) node.contents.push(0);
},resizeFileStorage:function (node, newSize) {
if (node.usedBytes == newSize) return;
if (newSize == 0) {
node.contents = null; // Fully decommit when requesting a resize to zero.
node.usedBytes = 0;
return;
}
if (!node.contents || node.contents.subarray) { // Resize a typed array if that is being used as the backing store.
var oldContents = node.contents;
node.contents = new Uint8Array(new ArrayBuffer(newSize)); // Allocate new storage.
if (oldContents) {
node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage.
}
node.usedBytes = newSize;
return;
}
// Backing with a JS array.
if (!node.contents) node.contents = [];
if (node.contents.length > newSize) node.contents.length = newSize;
else while (node.contents.length < newSize) node.contents.push(0);
node.usedBytes = newSize;
},node_ops:{getattr:function (node) {
var attr = {};
// device numbers reuse inode numbers.
attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
attr.ino = node.id;
attr.mode = node.mode;
attr.nlink = 1;
attr.uid = 0;
attr.gid = 0;
attr.rdev = node.rdev;
if (FS.isDir(node.mode)) {
attr.size = 4096;
} else if (FS.isFile(node.mode)) {
attr.size = node.usedBytes;
} else if (FS.isLink(node.mode)) {
attr.size = node.link.length;
} else {
attr.size = 0;
}
attr.atime = new Date(node.timestamp);
attr.mtime = new Date(node.timestamp);
attr.ctime = new Date(node.timestamp);
// NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
// but this is not required by the standard.
attr.blksize = 4096;
attr.blocks = Math.ceil(attr.size / attr.blksize);
return attr;
},setattr:function (node, attr) {
if (attr.mode !== undefined) {
node.mode = attr.mode;
}
if (attr.timestamp !== undefined) {
node.timestamp = attr.timestamp;
}
if (attr.size !== undefined) {
MEMFS.resizeFileStorage(node, attr.size);
}
},lookup:function (parent, name) {
throw FS.genericErrors[ERRNO_CODES.ENOENT];
},mknod:function (parent, name, mode, dev) {
return MEMFS.createNode(parent, name, mode, dev);
},rename:function (old_node, new_dir, new_name) {
// if we're overwriting a directory at new_name, make sure it's empty.
if (FS.isDir(old_node.mode)) {
var new_node;
try {
new_node = FS.lookupNode(new_dir, new_name);
} catch (e) {
}
if (new_node) {
for (var i in new_node.contents) {
throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
}
}
}
// do the internal rewiring
delete old_node.parent.contents[old_node.name];
old_node.name = new_name;
new_dir.contents[new_name] = old_node;
old_node.parent = new_dir;
},unlink:function (parent, name) {
delete parent.contents[name];
},rmdir:function (parent, name) {
var node = FS.lookupNode(parent, name);
for (var i in node.contents) {
throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
}
delete parent.contents[name];
},readdir:function (node) {
var entries = ['.', '..']
for (var key in node.contents) {
if (!node.contents.hasOwnProperty(key)) {
continue;
}
entries.push(key);
}
return entries;
},symlink:function (parent, newname, oldpath) {
var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0);
node.link = oldpath;
return node;
},readlink:function (node) {
if (!FS.isLink(node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
return node.link;
}},stream_ops:{read:function (stream, buffer, offset, length, position) {
var contents = stream.node.contents;
if (position >= stream.node.usedBytes) return 0;
var size = Math.min(stream.node.usedBytes - position, length);
assert(size >= 0);
if (size > 8 && contents.subarray) { // non-trivial, and typed array
buffer.set(contents.subarray(position, position + size), offset);
} else {
for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
}
return size;
},write:function (stream, buffer, offset, length, position, canOwn) {
if (!length) return 0;
var node = stream.node;
node.timestamp = Date.now();
if (buffer.subarray && (!node.contents || node.contents.subarray)) { // This write is from a typed array to a typed array?
if (canOwn) {
assert(position === 0, 'canOwn must imply no weird position inside the file');
node.contents = buffer.subarray(offset, offset + length);
node.usedBytes = length;
return length;
} else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
node.contents = new Uint8Array(buffer.subarray(offset, offset + length));
node.usedBytes = length;
return length;
} else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file?
node.contents.set(buffer.subarray(offset, offset + length), position);
return length;
}
}
// Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
MEMFS.expandFileStorage(node, position+length);
if (node.contents.subarray && buffer.subarray) node.contents.set(buffer.subarray(offset, offset + length), position); // Use typed array write if available.
else {
for (var i = 0; i < length; i++) {
node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not.
}
}
node.usedBytes = Math.max(node.usedBytes, position+length);
return length;
},llseek:function (stream, offset, whence) {
var position = offset;
if (whence === 1) { // SEEK_CUR.
position += stream.position;
} else if (whence === 2) { // SEEK_END.
if (FS.isFile(stream.node.mode)) {
position += stream.node.usedBytes;
}
}
if (position < 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
return position;
},allocate:function (stream, offset, length) {
MEMFS.expandFileStorage(stream.node, offset + length);
stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length);
},mmap:function (stream, buffer, offset, length, position, prot, flags) {
if (!FS.isFile(stream.node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
}
var ptr;
var allocated;
var contents = stream.node.contents;
// Only make a new copy when MAP_PRIVATE is specified.
if ( !(flags & 2) &&
(contents.buffer === buffer || contents.buffer === buffer.buffer) ) {
// We can't emulate MAP_SHARED when the file is not backed by the buffer
// we're mapping to (e.g. the HEAP buffer).
allocated = false;
ptr = contents.byteOffset;
} else {
// Try to avoid unnecessary slices.
if (position > 0 || position + length < stream.node.usedBytes) {
if (contents.subarray) {
contents = contents.subarray(position, position + length);
} else {
contents = Array.prototype.slice.call(contents, position, position + length);
}
}
allocated = true;
ptr = _malloc(length);
if (!ptr) {
throw new FS.ErrnoError(ERRNO_CODES.ENOMEM);
}
buffer.set(contents, ptr);
}
return { ptr: ptr, allocated: allocated };
},msync:function (stream, buffer, offset, length, mmapFlags) {
if (!FS.isFile(stream.node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
}
if (mmapFlags & 2) {
// MAP_PRIVATE calls need not to be synced back to underlying fs
return 0;
}
var bytesWritten = MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
// should we check if bytesWritten and length are the same?
return 0;
}}};
var IDBFS={dbs:{},indexedDB:function () {
if (typeof indexedDB !== 'undefined') return indexedDB;
var ret = null;
if (typeof window === 'object') ret = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
assert(ret, 'IDBFS used, but indexedDB not supported');
return ret;
},DB_VERSION:21,DB_STORE_NAME:"FILE_DATA",mount:function (mount) {
// reuse all of the core MEMFS functionality
return MEMFS.mount.apply(null, arguments);
},syncfs:function (mount, populate, callback) {
IDBFS.getLocalSet(mount, function(err, local) {
if (err) return callback(err);
IDBFS.getRemoteSet(mount, function(err, remote) {
if (err) return callback(err);
var src = populate ? remote : local;
var dst = populate ? local : remote;
IDBFS.reconcile(src, dst, callback);
});
});
},getDB:function (name, callback) {
// check the cache first
var db = IDBFS.dbs[name];
if (db) {
return callback(null, db);
}
var req;
try {
req = IDBFS.indexedDB().open(name, IDBFS.DB_VERSION);
} catch (e) {
return callback(e);
}
if (!req) {
return callback("Unable to connect to IndexedDB");
}
req.onupgradeneeded = function(e) {
var db = e.target.result;
var transaction = e.target.transaction;
var fileStore;
if (db.objectStoreNames.contains(IDBFS.DB_STORE_NAME)) {
fileStore = transaction.objectStore(IDBFS.DB_STORE_NAME);
} else {
fileStore = db.createObjectStore(IDBFS.DB_STORE_NAME);
}
if (!fileStore.indexNames.contains('timestamp')) {
fileStore.createIndex('timestamp', 'timestamp', { unique: false });
}
};
req.onsuccess = function() {
db = req.result;
// add to the cache
IDBFS.dbs[name] = db;
callback(null, db);
};
req.onerror = function(e) {
callback(this.error);
e.preventDefault();
};
},getLocalSet:function (mount, callback) {
var entries = {};
function isRealDir(p) {
return p !== '.' && p !== '..';
};
function toAbsolute(root) {
return function(p) {
return PATH.join2(root, p);
}
};
var check = FS.readdir(mount.mountpoint).filter(isRealDir).map(toAbsolute(mount.mountpoint));
while (check.length) {
var path = check.pop();
var stat;
try {
stat = FS.stat(path);
} catch (e) {
return callback(e);
}
if (FS.isDir(stat.mode)) {
check.push.apply(check, FS.readdir(path).filter(isRealDir).map(toAbsolute(path)));
}
entries[path] = { timestamp: stat.mtime };
}
return callback(null, { type: 'local', entries: entries });
},getRemoteSet:function (mount, callback) {
var entries = {};
IDBFS.getDB(mount.mountpoint, function(err, db) {
if (err) return callback(err);
var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readonly');
transaction.onerror = function(e) {
callback(this.error);
e.preventDefault();
};
var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
var index = store.index('timestamp');
index.openKeyCursor().onsuccess = function(event) {
var cursor = event.target.result;
if (!cursor) {
return callback(null, { type: 'remote', db: db, entries: entries });
}
entries[cursor.primaryKey] = { timestamp: cursor.key };
cursor.continue();
};
});
},loadLocalEntry:function (path, callback) {
var stat, node;
try {
var lookup = FS.lookupPath(path);
node = lookup.node;
stat = FS.stat(path);
} catch (e) {
return callback(e);
}
if (FS.isDir(stat.mode)) {
return callback(null, { timestamp: stat.mtime, mode: stat.mode });
} else if (FS.isFile(stat.mode)) {
// Performance consideration: storing a normal JavaScript array to a IndexedDB is much slower than storing a typed array.
// Therefore always convert the file contents to a typed array first before writing the data to IndexedDB.
node.contents = MEMFS.getFileDataAsTypedArray(node);
return callback(null, { timestamp: stat.mtime, mode: stat.mode, contents: node.contents });
} else {
return callback(new Error('node type not supported'));
}
},storeLocalEntry:function (path, entry, callback) {
try {
if (FS.isDir(entry.mode)) {
FS.mkdir(path, entry.mode);
} else if (FS.isFile(entry.mode)) {
FS.writeFile(path, entry.contents, { encoding: 'binary', canOwn: true });
} else {
return callback(new Error('node type not supported'));
}
FS.chmod(path, entry.mode);
FS.utime(path, entry.timestamp, entry.timestamp);
} catch (e) {
return callback(e);
}
callback(null);
},removeLocalEntry:function (path, callback) {
try {
var lookup = FS.lookupPath(path);
var stat = FS.stat(path);
if (FS.isDir(stat.mode)) {
FS.rmdir(path);
} else if (FS.isFile(stat.mode)) {
FS.unlink(path);
}
} catch (e) {
return callback(e);
}
callback(null);
},loadRemoteEntry:function (store, path, callback) {
var req = store.get(path);
req.onsuccess = function(event) { callback(null, event.target.result); };
req.onerror = function(e) {
callback(this.error);
e.preventDefault();
};
},storeRemoteEntry:function (store, path, entry, callback) {
var req = store.put(entry, path);
req.onsuccess = function() { callback(null); };
req.onerror = function(e) {
callback(this.error);
e.preventDefault();
};
},removeRemoteEntry:function (store, path, callback) {
var req = store.delete(path);
req.onsuccess = function() { callback(null); };
req.onerror = function(e) {
callback(this.error);
e.preventDefault();
};
},reconcile:function (src, dst, callback) {
var total = 0;
var create = [];
Object.keys(src.entries).forEach(function (key) {
var e = src.entries[key];
var e2 = dst.entries[key];
if (!e2 || e.timestamp > e2.timestamp) {
create.push(key);
total++;
}
});
var remove = [];
Object.keys(dst.entries).forEach(function (key) {
var e = dst.entries[key];
var e2 = src.entries[key];
if (!e2) {
remove.push(key);
total++;
}
});
if (!total) {
return callback(null);
}
var errored = false;
var completed = 0;
var db = src.type === 'remote' ? src.db : dst.db;
var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readwrite');
var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
function done(err) {
if (err) {
if (!done.errored) {
done.errored = true;
return callback(err);
}
return;
}
if (++completed >= total) {
return callback(null);
}
};
transaction.onerror = function(e) {
done(this.error);
e.preventDefault();
};
// sort paths in ascending order so directory entries are created
// before the files inside them
create.sort().forEach(function (path) {
if (dst.type === 'local') {
IDBFS.loadRemoteEntry(store, path, function (err, entry) {
if (err) return done(err);
IDBFS.storeLocalEntry(path, entry, done);
});
} else {
IDBFS.loadLocalEntry(path, function (err, entry) {
if (err) return done(err);
IDBFS.storeRemoteEntry(store, path, entry, done);
});
}
});
// sort paths in descending order so files are deleted before their
// parent directories
remove.sort().reverse().forEach(function(path) {
if (dst.type === 'local') {
IDBFS.removeLocalEntry(path, done);
} else {
IDBFS.removeRemoteEntry(store, path, done);
}
});
}};
var NODEFS={isWindows:false,staticInit:function () {
NODEFS.isWindows = !!process.platform.match(/^win/);
},mount:function (mount) {
assert(ENVIRONMENT_IS_NODE);
return NODEFS.createNode(null, '/', NODEFS.getMode(mount.opts.root), 0);
},createNode:function (parent, name, mode, dev) {
if (!FS.isDir(mode) && !FS.isFile(mode) && !FS.isLink(mode)) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
var node = FS.createNode(parent, name, mode);
node.node_ops = NODEFS.node_ops;
node.stream_ops = NODEFS.stream_ops;
return node;
},getMode:function (path) {
var stat;
try {
stat = fs.lstatSync(path);
if (NODEFS.isWindows) {
// On Windows, directories return permission bits 'rw-rw-rw-', even though they have 'rwxrwxrwx', so
// propagate write bits to execute bits.
stat.mode = stat.mode | ((stat.mode & 146) >> 1);
}
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
return stat.mode;
},realPath:function (node) {
var parts = [];
while (node.parent !== node) {
parts.push(node.name);
node = node.parent;
}
parts.push(node.mount.opts.root);
parts.reverse();
return PATH.join.apply(null, parts);
},flagsToPermissionStringMap:{0:"r",1:"r+",2:"r+",64:"r",65:"r+",66:"r+",129:"rx+",193:"rx+",514:"w+",577:"w",578:"w+",705:"wx",706:"wx+",1024:"a",1025:"a",1026:"a+",1089:"a",1090:"a+",1153:"ax",1154:"ax+",1217:"ax",1218:"ax+",4096:"rs",4098:"rs+"},flagsToPermissionString:function (flags) {
flags &= ~0x200000 /*O_PATH*/; // Ignore this flag from musl, otherwise node.js fails to open the file.
flags &= ~0x800 /*O_NONBLOCK*/; // Ignore this flag from musl, otherwise node.js fails to open the file.
flags &= ~0x8000 /*O_LARGEFILE*/; // Ignore this flag from musl, otherwise node.js fails to open the file.
flags &= ~0x80000 /*O_CLOEXEC*/; // Some applications may pass it; it makes no sense for a single process.
if (flags in NODEFS.flagsToPermissionStringMap) {
return NODEFS.flagsToPermissionStringMap[flags];
} else {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
},node_ops:{getattr:function (node) {
var path = NODEFS.realPath(node);
var stat;
try {
stat = fs.lstatSync(path);
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
// node.js v0.10.20 doesn't report blksize and blocks on Windows. Fake them with default blksize of 4096.
// See http://support.microsoft.com/kb/140365
if (NODEFS.isWindows && !stat.blksize) {
stat.blksize = 4096;
}
if (NODEFS.isWindows && !stat.blocks) {
stat.blocks = (stat.size+stat.blksize-1)/stat.blksize|0;
}
return {
dev: stat.dev,
ino: stat.ino,
mode: stat.mode,
nlink: stat.nlink,
uid: stat.uid,
gid: stat.gid,
rdev: stat.rdev,
size: stat.size,
atime: stat.atime,
mtime: stat.mtime,
ctime: stat.ctime,
blksize: stat.blksize,
blocks: stat.blocks
};
},setattr:function (node, attr) {
var path = NODEFS.realPath(node);
try {
if (attr.mode !== undefined) {
fs.chmodSync(path, attr.mode);
// update the common node structure mode as well
node.mode = attr.mode;
}
if (attr.timestamp !== undefined) {
var date = new Date(attr.timestamp);
fs.utimesSync(path, date, date);
}
if (attr.size !== undefined) {
fs.truncateSync(path, attr.size);
}
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
},lookup:function (parent, name) {
var path = PATH.join2(NODEFS.realPath(parent), name);
var mode = NODEFS.getMode(path);
return NODEFS.createNode(parent, name, mode);
},mknod:function (parent, name, mode, dev) {
var node = NODEFS.createNode(parent, name, mode, dev);
// create the backing node for this in the fs root as well
var path = NODEFS.realPath(node);
try {
if (FS.isDir(node.mode)) {
fs.mkdirSync(path, node.mode);
} else {
fs.writeFileSync(path, '', { mode: node.mode });
}
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
return node;
},rename:function (oldNode, newDir, newName) {
var oldPath = NODEFS.realPath(oldNode);
var newPath = PATH.join2(NODEFS.realPath(newDir), newName);
try {
fs.renameSync(oldPath, newPath);
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
},unlink:function (parent, name) {
var path = PATH.join2(NODEFS.realPath(parent), name);
try {
fs.unlinkSync(path);
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
},rmdir:function (parent, name) {
var path = PATH.join2(NODEFS.realPath(parent), name);
try {
fs.rmdirSync(path);
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
},readdir:function (node) {
var path = NODEFS.realPath(node);
try {
return fs.readdirSync(path);
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
},symlink:function (parent, newName, oldPath) {
var newPath = PATH.join2(NODEFS.realPath(parent), newName);
try {
fs.symlinkSync(oldPath, newPath);
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
},readlink:function (node) {
var path = NODEFS.realPath(node);
try {
path = fs.readlinkSync(path);
path = NODEJS_PATH.relative(NODEJS_PATH.resolve(node.mount.opts.root), path);
return path;
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
}},stream_ops:{open:function (stream) {
var path = NODEFS.realPath(stream.node);
try {
if (FS.isFile(stream.node.mode)) {
stream.nfd = fs.openSync(path, NODEFS.flagsToPermissionString(stream.flags));
}
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
},close:function (stream) {
try {
if (FS.isFile(stream.node.mode) && stream.nfd) {
fs.closeSync(stream.nfd);
}
} catch (e) {
if (!e.code) throw e;
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
},read:function (stream, buffer, offset, length, position) {
if (length === 0) return 0; // node errors on 0 length reads
// FIXME this is terrible.
var nbuffer = new Buffer(length);
var res;
try {
res = fs.readSync(stream.nfd, nbuffer, 0, length, position);
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
if (res > 0) {
for (var i = 0; i < res; i++) {
buffer[offset + i] = nbuffer[i];
}
}
return res;
},write:function (stream, buffer, offset, length, position) {
// FIXME this is terrible.
var nbuffer = new Buffer(buffer.subarray(offset, offset + length));
var res;
try {
res = fs.writeSync(stream.nfd, nbuffer, 0, length, position);
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
return res;
},llseek:function (stream, offset, whence) {
var position = offset;
if (whence === 1) { // SEEK_CUR.
position += stream.position;
} else if (whence === 2) { // SEEK_END.
if (FS.isFile(stream.node.mode)) {
try {
var stat = fs.fstatSync(stream.nfd);
position += stat.size;
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
}
}
}
if (position < 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
return position;
}}};
var WORKERFS={DIR_MODE:16895,FILE_MODE:33279,reader:null,mount:function (mount) {
assert(ENVIRONMENT_IS_WORKER);
if (!WORKERFS.reader) WORKERFS.reader = new FileReaderSync();
var root = WORKERFS.createNode(null, '/', WORKERFS.DIR_MODE, 0);
var createdParents = {};
function ensureParent(path) {
// return the parent node, creating subdirs as necessary
var parts = path.split('/');
var parent = root;
for (var i = 0; i < parts.length-1; i++) {
var curr = parts.slice(0, i+1).join('/');
// Issue 4254: Using curr as a node name will prevent the node
// from being found in FS.nameTable when FS.open is called on
// a path which holds a child of this node,
// given that all FS functions assume node names
// are just their corresponding parts within their given path,
// rather than incremental aggregates which include their parent's
// directories.
if (!createdParents[curr]) {
createdParents[curr] = WORKERFS.createNode(parent, parts[i], WORKERFS.DIR_MODE, 0);
}
parent = createdParents[curr];
}
return parent;
}
function base(path) {
var parts = path.split('/');
return parts[parts.length-1];
}
// We also accept FileList here, by using Array.prototype
Array.prototype.forEach.call(mount.opts["files"] || [], function(file) {
WORKERFS.createNode(ensureParent(file.name), base(file.name), WORKERFS.FILE_MODE, 0, file, file.lastModifiedDate);
});
(mount.opts["blobs"] || []).forEach(function(obj) {
WORKERFS.createNode(ensureParent(obj["name"]), base(obj["name"]), WORKERFS.FILE_MODE, 0, obj["data"]);
});
(mount.opts["packages"] || []).forEach(function(pack) {
pack['metadata'].files.forEach(function(file) {
var name = file.filename.substr(1); // remove initial slash
WORKERFS.createNode(ensureParent(name), base(name), WORKERFS.FILE_MODE, 0, pack['blob'].slice(file.start, file.end));
});
});
return root;
},createNode:function (parent, name, mode, dev, contents, mtime) {
var node = FS.createNode(parent, name, mode);
node.mode = mode;
node.node_ops = WORKERFS.node_ops;
node.stream_ops = WORKERFS.stream_ops;
node.timestamp = (mtime || new Date).getTime();
assert(WORKERFS.FILE_MODE !== WORKERFS.DIR_MODE);
if (mode === WORKERFS.FILE_MODE) {
node.size = contents.size;
node.contents = contents;
} else {
node.size = 4096;
node.contents = {};
}
if (parent) {
parent.contents[name] = node;
}
return node;
},node_ops:{getattr:function (node) {
return {
dev: 1,
ino: undefined,
mode: node.mode,
nlink: 1,
uid: 0,
gid: 0,
rdev: undefined,
size: node.size,
atime: new Date(node.timestamp),
mtime: new Date(node.timestamp),
ctime: new Date(node.timestamp),
blksize: 4096,
blocks: Math.ceil(node.size / 4096),
};
},setattr:function (node, attr) {
if (attr.mode !== undefined) {
node.mode = attr.mode;
}
if (attr.timestamp !== undefined) {
node.timestamp = attr.timestamp;
}
},lookup:function (parent, name) {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
},mknod:function (parent, name, mode, dev) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
},rename:function (oldNode, newDir, newName) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
},unlink:function (parent, name) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
},rmdir:function (parent, name) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
},readdir:function (node) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
},symlink:function (parent, newName, oldPath) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
},readlink:function (node) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}},stream_ops:{read:function (stream, buffer, offset, length, position) {
if (position >= stream.node.size) return 0;
var chunk = stream.node.contents.slice(position, position + length);
var ab = WORKERFS.reader.readAsArrayBuffer(chunk);
buffer.set(new Uint8Array(ab), offset);
return chunk.size;
},write:function (stream, buffer, offset, length, position) {
throw new FS.ErrnoError(ERRNO_CODES.EIO);
},llseek:function (stream, offset, whence) {
var position = offset;
if (whence === 1) { // SEEK_CUR.
position += stream.position;
} else if (whence === 2) { // SEEK_END.
if (FS.isFile(stream.node.mode)) {
position += stream.node.size;
}
}
if (position < 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
return position;
}}};
var _stdin=STATICTOP; STATICTOP += 16;;
var _stdout=STATICTOP; STATICTOP += 16;;
var _stderr=STATICTOP; STATICTOP += 16;;var FS={root:null,mounts:[],devices:[null],streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,trackingDelegate:{},tracking:{openFlags:{READ:1,WRITE:2}},ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,handleFSError:function (e) {
if (!(e instanceof FS.ErrnoError)) throw e + ' : ' + stackTrace();
return ___setErrNo(e.errno);
},lookupPath:function (path, opts) {
path = PATH.resolve(FS.cwd(), path);
opts = opts || {};
if (!path) return { path: '', node: null };
var defaults = {
follow_mount: true,
recurse_count: 0
};
for (var key in defaults) {
if (opts[key] === undefined) {
opts[key] = defaults[key];
}
}
if (opts.recurse_count > 8) { // max recursive lookup of 8
throw new FS.ErrnoError(ERRNO_CODES.ELOOP);
}
// split the path
var parts = PATH.normalizeArray(path.split('/').filter(function(p) {
return !!p;
}), false);
// start at the root
var current = FS.root;
var current_path = '/';
for (var i = 0; i < parts.length; i++) {
var islast = (i === parts.length-1);
if (islast && opts.parent) {
// stop resolving
break;
}
current = FS.lookupNode(current, parts[i]);
current_path = PATH.join2(current_path, parts[i]);
// jump to the mount's root node if this is a mountpoint
if (FS.isMountpoint(current)) {
if (!islast || (islast && opts.follow_mount)) {
current = current.mounted.root;
}
}
// by default, lookupPath will not follow a symlink if it is the final path component.
// setting opts.follow = true will override this behavior.
if (!islast || opts.follow) {
var count = 0;
while (FS.isLink(current.mode)) {
var link = FS.readlink(current_path);
current_path = PATH.resolve(PATH.dirname(current_path), link);
var lookup = FS.lookupPath(current_path, { recurse_count: opts.recurse_count });
current = lookup.node;
if (count++ > 40) { // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
throw new FS.ErrnoError(ERRNO_CODES.ELOOP);
}
}
}
}
return { path: current_path, node: current };
},getPath:function (node) {
var path;
while (true) {
if (FS.isRoot(node)) {
var mount = node.mount.mountpoint;
if (!path) return mount;
return mount[mount.length-1] !== '/' ? mount + '/' + path : mount + path;
}
path = path ? node.name + '/' + path : node.name;
node = node.parent;
}
},hashName:function (parentid, name) {
var hash = 0;
for (var i = 0; i < name.length; i++) {
hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
}
return ((parentid + hash) >>> 0) % FS.nameTable.length;
},hashAddNode:function (node) {
var hash = FS.hashName(node.parent.id, node.name);
node.name_next = FS.nameTable[hash];
FS.nameTable[hash] = node;
},hashRemoveNode:function (node) {
var hash = FS.hashName(node.parent.id, node.name);
if (FS.nameTable[hash] === node) {
FS.nameTable[hash] = node.name_next;
} else {
var current = FS.nameTable[hash];
while (current) {
if (current.name_next === node) {
current.name_next = node.name_next;
break;
}
current = current.name_next;
}
}
},lookupNode:function (parent, name) {
var err = FS.mayLookup(parent);
if (err) {
throw new FS.ErrnoError(err, parent);
}
var hash = FS.hashName(parent.id, name);
for (var node = FS.nameTable[hash]; node; node = node.name_next) {
var nodeName = node.name;
if (node.parent.id === parent.id && nodeName === name) {
return node;
}
}
// if we failed to find it in the cache, call into the VFS
return FS.lookup(parent, name);
},createNode:function (parent, name, mode, rdev) {
if (!FS.FSNode) {
FS.FSNode = function(parent, name, mode, rdev) {
if (!parent) {
parent = this; // root node sets parent to itself
}
this.parent = parent;
this.mount = parent.mount;
this.mounted = null;
this.id = FS.nextInode++;
this.name = name;
this.mode = mode;
this.node_ops = {};
this.stream_ops = {};
this.rdev = rdev;
};
FS.FSNode.prototype = {};
// compatibility
var readMode = 292 | 73;
var writeMode = 146;
// NOTE we must use Object.defineProperties instead of individual calls to
// Object.defineProperty in order to make closure compiler happy
Object.defineProperties(FS.FSNode.prototype, {
read: {
get: function() { return (this.mode & readMode) === readMode; },
set: function(val) { val ? this.mode |= readMode : this.mode &= ~readMode; }
},
write: {
get: function() { return (this.mode & writeMode) === writeMode; },
set: function(val) { val ? this.mode |= writeMode : this.mode &= ~writeMode; }
},
isFolder: {
get: function() { return FS.isDir(this.mode); }
},
isDevice: {
get: function() { return FS.isChrdev(this.mode); }
}
});
}
var node = new FS.FSNode(parent, name, mode, rdev);
FS.hashAddNode(node);
return node;
},destroyNode:function (node) {
FS.hashRemoveNode(node);
},isRoot:function (node) {
return node === node.parent;
},isMountpoint:function (node) {
return !!node.mounted;
},isFile:function (mode) {
return (mode & 61440) === 32768;
},isDir:function (mode) {
return (mode & 61440) === 16384;
},isLink:function (mode) {
return (mode & 61440) === 40960;
},isChrdev:function (mode) {
return (mode & 61440) === 8192;
},isBlkdev:function (mode) {
return (mode & 61440) === 24576;
},isFIFO:function (mode) {
return (mode & 61440) === 4096;
},isSocket:function (mode) {
return (mode & 49152) === 49152;
},flagModes:{"r":0,"rs":1052672,"r+":2,"w":577,"wx":705,"xw":705,"w+":578,"wx+":706,"xw+":706,"a":1089,"ax":1217,"xa":1217,"a+":1090,"ax+":1218,"xa+":1218},modeStringToFlags:function (str) {
var flags = FS.flagModes[str];
if (typeof flags === 'undefined') {
throw new Error('Unknown file open mode: ' + str);
}
return flags;
},flagsToPermissionString:function (flag) {
var perms = ['r', 'w', 'rw'][flag & 3];
if ((flag & 512)) {
perms += 'w';
}
return perms;
},nodePermissions:function (node, perms) {
if (FS.ignorePermissions) {
return 0;
}
// return 0 if any user, group or owner bits are set.
if (perms.indexOf('r') !== -1 && !(node.mode & 292)) {
return ERRNO_CODES.EACCES;
} else if (perms.indexOf('w') !== -1 && !(node.mode & 146)) {
return ERRNO_CODES.EACCES;
} else if (perms.indexOf('x') !== -1 && !(node.mode & 73)) {
return ERRNO_CODES.EACCES;
}
return 0;
},mayLookup:function (dir) {
var err = FS.nodePermissions(dir, 'x');
if (err) return err;
if (!dir.node_ops.lookup) return ERRNO_CODES.EACCES;
return 0;
},mayCreate:function (dir, name) {
try {
var node = FS.lookupNode(dir, name);
return ERRNO_CODES.EEXIST;
} catch (e) {
}
return FS.nodePermissions(dir, 'wx');
},mayDelete:function (dir, name, isdir) {
var node;
try {
node = FS.lookupNode(dir, name);
} catch (e) {
return e.errno;
}
var err = FS.nodePermissions(dir, 'wx');
if (err) {
return err;
}
if (isdir) {
if (!FS.isDir(node.mode)) {
return ERRNO_CODES.ENOTDIR;
}
if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
return ERRNO_CODES.EBUSY;
}
} else {
if (FS.isDir(node.mode)) {
return ERRNO_CODES.EISDIR;
}
}
return 0;
},mayOpen:function (node, flags) {
if (!node) {
return ERRNO_CODES.ENOENT;
}
if (FS.isLink(node.mode)) {
return ERRNO_CODES.ELOOP;
} else if (FS.isDir(node.mode)) {
if (FS.flagsToPermissionString(flags) !== 'r' || // opening for write
(flags & 512)) { // TODO: check for O_SEARCH? (== search for dir only)
return ERRNO_CODES.EISDIR;
}
}
return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
},MAX_OPEN_FDS:4096,nextfd:function (fd_start, fd_end) {
fd_start = fd_start || 0;
fd_end = fd_end || FS.MAX_OPEN_FDS;
for (var fd = fd_start; fd <= fd_end; fd++) {
if (!FS.streams[fd]) {
return fd;
}
}
throw new FS.ErrnoError(ERRNO_CODES.EMFILE);
},getStream:function (fd) {
return FS.streams[fd];
},createStream:function (stream, fd_start, fd_end) {
if (!FS.FSStream) {
FS.FSStream = function(){};
FS.FSStream.prototype = {};
// compatibility
Object.defineProperties(FS.FSStream.prototype, {
object: {
get: function() { return this.node; },
set: function(val) { this.node = val; }
},
isRead: {
get: function() { return (this.flags & 2097155) !== 1; }
},
isWrite: {
get: function() { return (this.flags & 2097155) !== 0; }
},
isAppend: {
get: function() { return (this.flags & 1024); }
}
});
}
// clone it, so we can return an instance of FSStream
var newStream = new FS.FSStream();
for (var p in stream) {
newStream[p] = stream[p];
}
stream = newStream;
var fd = FS.nextfd(fd_start, fd_end);
stream.fd = fd;
FS.streams[fd] = stream;
return stream;
},closeStream:function (fd) {
FS.streams[fd] = null;
},chrdev_stream_ops:{open:function (stream) {
var device = FS.getDevice(stream.node.rdev);
// override node's stream ops with the device's
stream.stream_ops = device.stream_ops;
// forward the open call
if (stream.stream_ops.open) {
stream.stream_ops.open(stream);
}
},llseek:function () {
throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
}},major:function (dev) {
return ((dev) >> 8);
},minor:function (dev) {
return ((dev) & 0xff);
},makedev:function (ma, mi) {
return ((ma) << 8 | (mi));
},registerDevice:function (dev, ops) {
FS.devices[dev] = { stream_ops: ops };
},getDevice:function (dev) {
return FS.devices[dev];
},getMounts:function (mount) {
var mounts = [];
var check = [mount];
while (check.length) {
var m = check.pop();
mounts.push(m);
check.push.apply(check, m.mounts);
}
return mounts;
},syncfs:function (populate, callback) {
if (typeof(populate) === 'function') {
callback = populate;
populate = false;
}
FS.syncFSRequests++;
if (FS.syncFSRequests > 1) {
console.log('warning: ' + FS.syncFSRequests + ' FS.syncfs operations in flight at once, probably just doing extra work');
}
var mounts = FS.getMounts(FS.root.mount);
var completed = 0;
function doCallback(err) {
assert(FS.syncFSRequests > 0);
FS.syncFSRequests--;
return callback(err);
}
function done(err) {
if (err) {
if (!done.errored) {
done.errored = true;
return doCallback(err);
}
return;
}
if (++completed >= mounts.length) {
doCallback(null);
}
};
// sync all mounts
mounts.forEach(function (mount) {
if (!mount.type.syncfs) {
return done(null);
}
mount.type.syncfs(mount, populate, done);
});
},mount:function (type, opts, mountpoint) {
var root = mountpoint === '/';
var pseudo = !mountpoint;
var node;
if (root && FS.root) {
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
} else if (!root && !pseudo) {
var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
mountpoint = lookup.path; // use the absolute path
node = lookup.node;
if (FS.isMountpoint(node)) {
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
}
if (!FS.isDir(node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
}
}
var mount = {
type: type,
opts: opts,
mountpoint: mountpoint,
mounts: []
};
// create a root node for the fs
var mountRoot = type.mount(mount);
mountRoot.mount = mount;
mount.root = mountRoot;
if (root) {
FS.root = mountRoot;
} else if (node) {
// set as a mountpoint
node.mounted = mount;
// add the new mount to the current mount's children
if (node.mount) {
node.mount.mounts.push(mount);
}
}
return mountRoot;
},unmount:function (mountpoint) {
var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
if (!FS.isMountpoint(lookup.node)) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
// destroy the nodes for this mount, and all its child mounts
var node = lookup.node;
var mount = node.mounted;
var mounts = FS.getMounts(mount);
Object.keys(FS.nameTable).forEach(function (hash) {
var current = FS.nameTable[hash];
while (current) {
var next = current.name_next;
if (mounts.indexOf(current.mount) !== -1) {
FS.destroyNode(current);
}
current = next;
}
});
// no longer a mountpoint
node.mounted = null;
// remove this mount from the child mounts
var idx = node.mount.mounts.indexOf(mount);
assert(idx !== -1);
node.mount.mounts.splice(idx, 1);
},lookup:function (parent, name) {
return parent.node_ops.lookup(parent, name);
},mknod:function (path, mode, dev) {
var lookup = FS.lookupPath(path, { parent: true });
var parent = lookup.node;
var name = PATH.basename(path);
if (!name || name === '.' || name === '..') {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
var err = FS.mayCreate(parent, name);
if (err) {
throw new FS.ErrnoError(err);
}
if (!parent.node_ops.mknod) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
return parent.node_ops.mknod(parent, name, mode, dev);
},create:function (path, mode) {
mode = mode !== undefined ? mode : 438 /* 0666 */;
mode &= 4095;
mode |= 32768;
return FS.mknod(path, mode, 0);
},mkdir:function (path, mode) {
mode = mode !== undefined ? mode : 511 /* 0777 */;
mode &= 511 | 512;
mode |= 16384;
return FS.mknod(path, mode, 0);
},mkdirTree:function (path, mode) {
var dirs = path.split('/');
var d = '';
for (var i = 0; i < dirs.length; ++i) {
if (!dirs[i]) continue;
d += '/' + dirs[i];
try {
FS.mkdir(d, mode);
} catch(e) {
if (e.errno != ERRNO_CODES.EEXIST) throw e;
}
}
},mkdev:function (path, mode, dev) {
if (typeof(dev) === 'undefined') {
dev = mode;
mode = 438 /* 0666 */;
}
mode |= 8192;
return FS.mknod(path, mode, dev);
},symlink:function (oldpath, newpath) {
if (!PATH.resolve(oldpath)) {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
}
var lookup = FS.lookupPath(newpath, { parent: true });
var parent = lookup.node;
if (!parent) {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
}
var newname = PATH.basename(newpath);
var err = FS.mayCreate(parent, newname);
if (err) {
throw new FS.ErrnoError(err);
}
if (!parent.node_ops.symlink) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
return parent.node_ops.symlink(parent, newname, oldpath);
},rename:function (old_path, new_path) {
var old_dirname = PATH.dirname(old_path);
var new_dirname = PATH.dirname(new_path);
var old_name = PATH.basename(old_path);
var new_name = PATH.basename(new_path);
// parents must exist
var lookup, old_dir, new_dir;
try {
lookup = FS.lookupPath(old_path, { parent: true });
old_dir = lookup.node;
lookup = FS.lookupPath(new_path, { parent: true });
new_dir = lookup.node;
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
}
if (!old_dir || !new_dir) throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
// need to be part of the same mount
if (old_dir.mount !== new_dir.mount) {
throw new FS.ErrnoError(ERRNO_CODES.EXDEV);
}
// source must exist
var old_node = FS.lookupNode(old_dir, old_name);
// old path should not be an ancestor of the new path
var relative = PATH.relative(old_path, new_dirname);
if (relative.charAt(0) !== '.') {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
// new path should not be an ancestor of the old path
relative = PATH.relative(new_path, old_dirname);
if (relative.charAt(0) !== '.') {
throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
}
// see if the new path already exists
var new_node;
try {
new_node = FS.lookupNode(new_dir, new_name);
} catch (e) {
// not fatal
}
// early out if nothing needs to change
if (old_node === new_node) {
return;
}
// we'll need to delete the old entry
var isdir = FS.isDir(old_node.mode);
var err = FS.mayDelete(old_dir, old_name, isdir);
if (err) {
throw new FS.ErrnoError(err);
}
// need delete permissions if we'll be overwriting.
// need create permissions if new doesn't already exist.
err = new_node ?
FS.mayDelete(new_dir, new_name, isdir) :
FS.mayCreate(new_dir, new_name);
if (err) {
throw new FS.ErrnoError(err);
}
if (!old_dir.node_ops.rename) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
}
// if we are going to change the parent, check write permissions
if (new_dir !== old_dir) {
err = FS.nodePermissions(old_dir, 'w');
if (err) {
throw new FS.ErrnoError(err);
}
}
try {
if (FS.trackingDelegate['willMovePath']) {
FS.trackingDelegate['willMovePath'](old_path, new_path);
}
} catch(e) {
console.log("FS.trackingDelegate['willMovePath']('"+old_path+"', '"+new_path+"') threw an exception: " + e.message);
}
// remove the node from the lookup hash
FS.hashRemoveNode(old_node);
// do the underlying fs rename
try {
old_dir.node_ops.rename(old_node, new_dir, new_name);
} catch (e) {
throw e;
} finally {
// add the node back to the hash (in case node_ops.rename
// changed its name)
FS.hashAddNode(old_node);
}
try {
if (FS.trackingDelegate['onMovePath']) FS.trackingDelegate['onMovePath'](old_path, new_path);
} catch(e) {
console.log("FS.trackingDelegate['onMovePath']('"+old_path+"', '"+new_path+"') threw an exception: " + e.message);
}
},rmdir:function (path) {
var lookup = FS.lookupPath(path, { parent: true });
var parent = lookup.node;
var name = PATH.basename(path);
var node = FS.lookupNode(parent, name);
var err = FS.mayDelete(parent, name, true);
if (err) {
throw new FS.ErrnoError(err);
}
if (!parent.node_ops.rmdir) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
if (FS.isMountpoint(node)) {
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
}
try {
if (FS.trackingDelegate['willDeletePath']) {
FS.trackingDelegate['willDeletePath'](path);
}
} catch(e) {
console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: " + e.message);
}
parent.node_ops.rmdir(parent, name);
FS.destroyNode(node);
try {
if (FS.trackingDelegate['onDeletePath']) FS.trackingDelegate['onDeletePath'](path);
} catch(e) {
console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: " + e.message);
}
},readdir:function (path) {
var lookup = FS.lookupPath(path, { follow: true });
var node = lookup.node;
if (!node.node_ops.readdir) {
throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
}
return node.node_ops.readdir(node);
},unlink:function (path) {
var lookup = FS.lookupPath(path, { parent: true });
var parent = lookup.node;
var name = PATH.basename(path);
var node = FS.lookupNode(parent, name);
var err = FS.mayDelete(parent, name, false);
if (err) {
// According to POSIX, we should map EISDIR to EPERM, but
// we instead do what Linux does (and we must, as we use
// the musl linux libc).
throw new FS.ErrnoError(err);
}
if (!parent.node_ops.unlink) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
if (FS.isMountpoint(node)) {
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
}
try {
if (FS.trackingDelegate['willDeletePath']) {
FS.trackingDelegate['willDeletePath'](path);
}
} catch(e) {
console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: " + e.message);
}
parent.node_ops.unlink(parent, name);
FS.destroyNode(node);
try {
if (FS.trackingDelegate['onDeletePath']) FS.trackingDelegate['onDeletePath'](path);
} catch(e) {
console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: " + e.message);
}
},readlink:function (path) {
var lookup = FS.lookupPath(path);
var link = lookup.node;
if (!link) {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
}
if (!link.node_ops.readlink) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
return PATH.resolve(FS.getPath(link.parent), link.node_ops.readlink(link));
},stat:function (path, dontFollow) {
var lookup = FS.lookupPath(path, { follow: !dontFollow });
var node = lookup.node;
if (!node) {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
}
if (!node.node_ops.getattr) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
return node.node_ops.getattr(node);
},lstat:function (path) {
return FS.stat(path, true);
},chmod:function (path, mode, dontFollow) {
var node;
if (typeof path === 'string') {
var lookup = FS.lookupPath(path, { follow: !dontFollow });
node = lookup.node;
} else {
node = path;
}
if (!node.node_ops.setattr) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
node.node_ops.setattr(node, {
mode: (mode & 4095) | (node.mode & ~4095),
timestamp: Date.now()
});
},lchmod:function (path, mode) {
FS.chmod(path, mode, true);
},fchmod:function (fd, mode) {
var stream = FS.getStream(fd);
if (!stream) {
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
}
FS.chmod(stream.node, mode);
},chown:function (path, uid, gid, dontFollow) {
var node;
if (typeof path === 'string') {
var lookup = FS.lookupPath(path, { follow: !dontFollow });
node = lookup.node;
} else {
node = path;
}
if (!node.node_ops.setattr) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
node.node_ops.setattr(node, {
timestamp: Date.now()
// we ignore the uid / gid for now
});
},lchown:function (path, uid, gid) {
FS.chown(path, uid, gid, true);
},fchown:function (fd, uid, gid) {
var stream = FS.getStream(fd);
if (!stream) {
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
}
FS.chown(stream.node, uid, gid);
},truncate:function (path, len) {
if (len < 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
var node;
if (typeof path === 'string') {
var lookup = FS.lookupPath(path, { follow: true });
node = lookup.node;
} else {
node = path;
}
if (!node.node_ops.setattr) {
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
if (FS.isDir(node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
}
if (!FS.isFile(node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
var err = FS.nodePermissions(node, 'w');
if (err) {
throw new FS.ErrnoError(err);
}
node.node_ops.setattr(node, {
size: len,
timestamp: Date.now()
});
},ftruncate:function (fd, len) {
var stream = FS.getStream(fd);
if (!stream) {
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
}
if ((stream.flags & 2097155) === 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
FS.truncate(stream.node, len);
},utime:function (path, atime, mtime) {
var lookup = FS.lookupPath(path, { follow: true });
var node = lookup.node;
node.node_ops.setattr(node, {
timestamp: Math.max(atime, mtime)
});
},open:function (path, flags, mode, fd_start, fd_end) {
if (path === "") {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
}
flags = typeof flags === 'string' ? FS.modeStringToFlags(flags) : flags;
mode = typeof mode === 'undefined' ? 438 /* 0666 */ : mode;
if ((flags & 64)) {
mode = (mode & 4095) | 32768;
} else {
mode = 0;
}
var node;
if (typeof path === 'object') {
node = path;
} else {
path = PATH.normalize(path);
try {
var lookup = FS.lookupPath(path, {
follow: !(flags & 131072)
});
node = lookup.node;
} catch (e) {
// ignore
}
}
// perhaps we need to create the node
var created = false;
if ((flags & 64)) {
if (node) {
// if O_CREAT and O_EXCL are set, error out if the node already exists
if ((flags & 128)) {
throw new FS.ErrnoError(ERRNO_CODES.EEXIST);
}
} else {
// node doesn't exist, try to create it
node = FS.mknod(path, mode, 0);
created = true;
}
}
if (!node) {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
}
// can't truncate a device
if (FS.isChrdev(node.mode)) {
flags &= ~512;
}
// if asked only for a directory, then this must be one
if ((flags & 65536) && !FS.isDir(node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
}
// check permissions, if this is not a file we just created now (it is ok to
// create and write to a file with read-only permissions; it is read-only
// for later use)
if (!created) {
var err = FS.mayOpen(node, flags);
if (err) {
throw new FS.ErrnoError(err);
}
}
// do truncation if necessary
if ((flags & 512)) {
FS.truncate(node, 0);
}
// we've already handled these, don't pass down to the underlying vfs
flags &= ~(128 | 512);
// register the stream with the filesystem
var stream = FS.createStream({
node: node,
path: FS.getPath(node), // we want the absolute path to the node
flags: flags,
seekable: true,
position: 0,
stream_ops: node.stream_ops,
// used by the file family libc calls (fopen, fwrite, ferror, etc.)
ungotten: [],
error: false
}, fd_start, fd_end);
// call the new stream's open function
if (stream.stream_ops.open) {
stream.stream_ops.open(stream);
}
if (Module['logReadFiles'] && !(flags & 1)) {
if (!FS.readFiles) FS.readFiles = {};
if (!(path in FS.readFiles)) {
FS.readFiles[path] = 1;
Module['printErr']('read file: ' + path);
}
}
try {
if (FS.trackingDelegate['onOpenFile']) {
var trackingFlags = 0;
if ((flags & 2097155) !== 1) {
trackingFlags |= FS.tracking.openFlags.READ;
}
if ((flags & 2097155) !== 0) {
trackingFlags |= FS.tracking.openFlags.WRITE;
}
FS.trackingDelegate['onOpenFile'](path, trackingFlags);
}
} catch(e) {
console.log("FS.trackingDelegate['onOpenFile']('"+path+"', flags) threw an exception: " + e.message);
}
return stream;
},close:function (stream) {
if (stream.getdents) stream.getdents = null; // free readdir state
try {
if (stream.stream_ops.close) {
stream.stream_ops.close(stream);
}
} catch (e) {
throw e;
} finally {
FS.closeStream(stream.fd);
}
},llseek:function (stream, offset, whence) {
if (!stream.seekable || !stream.stream_ops.llseek) {
throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
}
stream.position = stream.stream_ops.llseek(stream, offset, whence);
stream.ungotten = [];
return stream.position;
},read:function (stream, buffer, offset, length, position) {
if (length < 0 || position < 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
if ((stream.flags & 2097155) === 1) {
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
}
if (FS.isDir(stream.node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
}
if (!stream.stream_ops.read) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
var seeking = true;
if (typeof position === 'undefined') {
position = stream.position;
seeking = false;
} else if (!stream.seekable) {
throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
}
var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position);
if (!seeking) stream.position += bytesRead;
return bytesRead;
},write:function (stream, buffer, offset, length, position, canOwn) {
if (length < 0 || position < 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
if ((stream.flags & 2097155) === 0) {
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
}
if (FS.isDir(stream.node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
}
if (!stream.stream_ops.write) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
if (stream.flags & 1024) {
// seek to the end before writing in append mode
FS.llseek(stream, 0, 2);
}
var seeking = true;
if (typeof position === 'undefined') {
position = stream.position;
seeking = false;
} else if (!stream.seekable) {
throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
}
var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
if (!seeking) stream.position += bytesWritten;
try {
if (stream.path && FS.trackingDelegate['onWriteToFile']) FS.trackingDelegate['onWriteToFile'](stream.path);
} catch(e) {
console.log("FS.trackingDelegate['onWriteToFile']('"+path+"') threw an exception: " + e.message);
}
return bytesWritten;
},allocate:function (stream, offset, length) {
if (offset < 0 || length <= 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
if ((stream.flags & 2097155) === 0) {
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
}
if (!FS.isFile(stream.node.mode) && !FS.isDir(node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
}
if (!stream.stream_ops.allocate) {
throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP);
}
stream.stream_ops.allocate(stream, offset, length);
},mmap:function (stream, buffer, offset, length, position, prot, flags) {
// TODO if PROT is PROT_WRITE, make sure we have write access
if ((stream.flags & 2097155) === 1) {
throw new FS.ErrnoError(ERRNO_CODES.EACCES);
}
if (!stream.stream_ops.mmap) {
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
}
return stream.stream_ops.mmap(stream, buffer, offset, length, position, prot, flags);
},msync:function (stream, buffer, offset, length, mmapFlags) {
if (!stream || !stream.stream_ops.msync) {
return 0;
}
return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
},munmap:function (stream) {
return 0;
},ioctl:function (stream, cmd, arg) {
if (!stream.stream_ops.ioctl) {
throw new FS.ErrnoError(ERRNO_CODES.ENOTTY);
}
return stream.stream_ops.ioctl(stream, cmd, arg);
},readFile:function (path, opts) {
opts = opts || {};
opts.flags = opts.flags || 'r';
opts.encoding = opts.encoding || 'binary';
if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
throw new Error('Invalid encoding type "' + opts.encoding + '"');
}
var ret;
var stream = FS.open(path, opts.flags);
var stat = FS.stat(path);
var length = stat.size;
var buf = new Uint8Array(length);
FS.read(stream, buf, 0, length, 0);
if (opts.encoding === 'utf8') {
ret = UTF8ArrayToString(buf, 0);
} else if (opts.encoding === 'binary') {
ret = buf;
}
FS.close(stream);
return ret;
},writeFile:function (path, data, opts) {
opts = opts || {};
opts.flags = opts.flags || 'w';
opts.encoding = opts.encoding || 'utf8';
if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
throw new Error('Invalid encoding type "' + opts.encoding + '"');
}
var stream = FS.open(path, opts.flags, opts.mode);
if (opts.encoding === 'utf8') {
var buf = new Uint8Array(lengthBytesUTF8(data)+1);
var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
FS.write(stream, buf, 0, actualNumBytes, 0, opts.canOwn);
} else if (opts.encoding === 'binary') {
FS.write(stream, data, 0, data.length, 0, opts.canOwn);
}
FS.close(stream);
},cwd:function () {
return FS.currentPath;
},chdir:function (path) {
var lookup = FS.lookupPath(path, { follow: true });
if (lookup.node === null) {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
}
if (!FS.isDir(lookup.node.mode)) {
throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
}
var err = FS.nodePermissions(lookup.node, 'x');
if (err) {
throw new FS.ErrnoError(err);
}
FS.currentPath = lookup.path;
},createDefaultDirectories:function () {
FS.mkdir('/tmp');
FS.mkdir('/home');
FS.mkdir('/home/web_user');
},createDefaultDevices:function () {
// create /dev
FS.mkdir('/dev');
// setup /dev/null
FS.registerDevice(FS.makedev(1, 3), {
read: function() { return 0; },
write: function(stream, buffer, offset, length, pos) { return length; }
});
FS.mkdev('/dev/null', FS.makedev(1, 3));
// setup /dev/tty and /dev/tty1
// stderr needs to print output using Module['printErr']
// so we register a second tty just for it.
TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
FS.mkdev('/dev/tty', FS.makedev(5, 0));
FS.mkdev('/dev/tty1', FS.makedev(6, 0));
// setup /dev/[u]random
var random_device;
if (typeof crypto !== 'undefined') {
// for modern web browsers
var randomBuffer = new Uint8Array(1);
random_device = function() { crypto.getRandomValues(randomBuffer); return randomBuffer[0]; };
} else if (ENVIRONMENT_IS_NODE) {
// for nodejs
random_device = function() { return require('crypto').randomBytes(1)[0]; };
} else {
// default for ES5 platforms
random_device = function() { return (Math.random()*256)|0; };
}
FS.createDevice('/dev', 'random', random_device);
FS.createDevice('/dev', 'urandom', random_device);
// we're not going to emulate the actual shm device,
// just create the tmp dirs that reside in it commonly
FS.mkdir('/dev/shm');
FS.mkdir('/dev/shm/tmp');
},createSpecialDirectories:function () {
// create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the name of the stream for fd 6 (see test_unistd_ttyname)
FS.mkdir('/proc');
FS.mkdir('/proc/self');
FS.mkdir('/proc/self/fd');
FS.mount({
mount: function() {
var node = FS.createNode('/proc/self', 'fd', 16384 | 511 /* 0777 */, 73);
node.node_ops = {
lookup: function(parent, name) {
var fd = +name;
var stream = FS.getStream(fd);
if (!stream) throw new FS.ErrnoError(ERRNO_CODES.EBADF);
var ret = {
parent: null,
mount: { mountpoint: 'fake' },
node_ops: { readlink: function() { return stream.path } }
};
ret.parent = ret; // make it look like a simple root node
return ret;
}
};
return node;
}
}, {}, '/proc/self/fd');
},createStandardStreams:function () {
// TODO deprecate the old functionality of a single
// input / output callback and that utilizes FS.createDevice
// and instead require a unique set of stream ops
// by default, we symlink the standard streams to the
// default tty devices. however, if the standard streams
// have been overwritten we create a unique device for
// them instead.
if (Module['stdin']) {
FS.createDevice('/dev', 'stdin', Module['stdin']);
} else {
FS.symlink('/dev/tty', '/dev/stdin');
}
if (Module['stdout']) {
FS.createDevice('/dev', 'stdout', null, Module['stdout']);
} else {
FS.symlink('/dev/tty', '/dev/stdout');
}
if (Module['stderr']) {
FS.createDevice('/dev', 'stderr', null, Module['stderr']);
} else {
FS.symlink('/dev/tty1', '/dev/stderr');
}
// open default streams for the stdin, stdout and stderr devices
var stdin = FS.open('/dev/stdin', 'r');
assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')');
var stdout = FS.open('/dev/stdout', 'w');
assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')');
var stderr = FS.open('/dev/stderr', 'w');
assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')');
},ensureErrnoError:function () {
if (FS.ErrnoError) return;
FS.ErrnoError = function ErrnoError(errno, node) {
//Module.printErr(stackTrace()); // useful for debugging
this.node = node;
this.setErrno = function(errno) {
this.errno = errno;
for (var key in ERRNO_CODES) {
if (ERRNO_CODES[key] === errno) {
this.code = key;
break;
}
}
};
this.setErrno(errno);
this.message = ERRNO_MESSAGES[errno];
if (this.stack) this.stack = demangleAll(this.stack);
};
FS.ErrnoError.prototype = new Error();
FS.ErrnoError.prototype.constructor = FS.ErrnoError;
// Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info)
[ERRNO_CODES.ENOENT].forEach(function(code) {
FS.genericErrors[code] = new FS.ErrnoError(code);
FS.genericErrors[code].stack = '<generic error, no stack>';
});
},staticInit:function () {
FS.ensureErrnoError();
FS.nameTable = new Array(4096);
FS.mount(MEMFS, {}, '/');
FS.createDefaultDirectories();
FS.createDefaultDevices();
FS.createSpecialDirectories();
FS.filesystems = {
'MEMFS': MEMFS,
'IDBFS': IDBFS,
'NODEFS': NODEFS,
'WORKERFS': WORKERFS,
};
},init:function (input, output, error) {
assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)');
FS.init.initialized = true;
FS.ensureErrnoError();
// Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
Module['stdin'] = input || Module['stdin'];
Module['stdout'] = output || Module['stdout'];
Module['stderr'] = error || Module['stderr'];
FS.createStandardStreams();
},quit:function () {
FS.init.initialized = false;
// force-flush all streams, so we get musl std streams printed out
var fflush = Module['_fflush'];
if (fflush) fflush(0);
// close all of our streams
for (var i = 0; i < FS.streams.length; i++) {
var stream = FS.streams[i];
if (!stream) {
continue;
}
FS.close(stream);
}
},getMode:function (canRead, canWrite) {
var mode = 0;
if (canRead) mode |= 292 | 73;
if (canWrite) mode |= 146;
return mode;
},joinPath:function (parts, forceRelative) {
var path = PATH.join.apply(null, parts);
if (forceRelative && path[0] == '/') path = path.substr(1);
return path;
},absolutePath:function (relative, base) {
return PATH.resolve(base, relative);
},standardizePath:function (path) {
return PATH.normalize(path);
},findObject:function (path, dontResolveLastLink) {
var ret = FS.analyzePath(path, dontResolveLastLink);
if (ret.exists) {
return ret.object;
} else {
___setErrNo(ret.error);
return null;
}
},analyzePath:function (path, dontResolveLastLink) {
// operate from within the context of the symlink's target
try {
var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
path = lookup.path;
} catch (e) {
}
var ret = {
isRoot: false, exists: false, error: 0, name: null, path: null, object: null,
parentExists: false, parentPath: null, parentObject: null
};
try {
var lookup = FS.lookupPath(path, { parent: true });
ret.parentExists = true;
ret.parentPath = lookup.path;
ret.parentObject = lookup.node;
ret.name = PATH.basename(path);
lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
ret.exists = true;
ret.path = lookup.path;
ret.object = lookup.node;
ret.name = lookup.node.name;
ret.isRoot = lookup.path === '/';
} catch (e) {
ret.error = e.errno;
};
return ret;
},createFolder:function (parent, name, canRead, canWrite) {
var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
var mode = FS.getMode(canRead, canWrite);
return FS.mkdir(path, mode);
},createPath:function (parent, path, canRead, canWrite) {
parent = typeof parent === 'string' ? parent : FS.getPath(parent);
var parts = path.split('/').reverse();
while (parts.length) {
var part = parts.pop();
if (!part) continue;
var current = PATH.join2(parent, part);
try {
FS.mkdir(current);
} catch (e) {
// ignore EEXIST
}
parent = current;
}
return current;
},createFile:function (parent, name, properties, canRead, canWrite) {
var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
var mode = FS.getMode(canRead, canWrite);
return FS.create(path, mode);
},createDataFile:function (parent, name, data, canRead, canWrite, canOwn) {
var path = name ? PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name) : parent;
var mode = FS.getMode(canRead, canWrite);
var node = FS.create(path, mode);
if (data) {
if (typeof data === 'string') {
var arr = new Array(data.length);
for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
data = arr;
}
// make sure we can write to the file
FS.chmod(node, mode | 146);
var stream = FS.open(node, 'w');
FS.write(stream, data, 0, data.length, 0, canOwn);
FS.close(stream);
FS.chmod(node, mode);
}
return node;
},createDevice:function (parent, name, input, output) {
var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
var mode = FS.getMode(!!input, !!output);
if (!FS.createDevice.major) FS.createDevice.major = 64;
var dev = FS.makedev(FS.createDevice.major++, 0);
// Create a fake device that a set of stream ops to emulate
// the old behavior.
FS.registerDevice(dev, {
open: function(stream) {
stream.seekable = false;
},
close: function(stream) {
// flush any pending line data
if (output && output.buffer && output.buffer.length) {
output(10);
}
},
read: function(stream, buffer, offset, length, pos /* ignored */) {
var bytesRead = 0;
for (var i = 0; i < length; i++) {
var result;
try {
result = input();
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES.EIO);
}
if (result === undefined && bytesRead === 0) {
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
}
if (result === null || result === undefined) break;
bytesRead++;
buffer[offset+i] = result;
}
if (bytesRead) {
stream.node.timestamp = Date.now();
}
return bytesRead;
},
write: function(stream, buffer, offset, length, pos) {
for (var i = 0; i < length; i++) {
try {
output(buffer[offset+i]);
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES.EIO);
}
}
if (length) {
stream.node.timestamp = Date.now();
}
return i;
}
});
return FS.mkdev(path, mode, dev);
},createLink:function (parent, name, target, canRead, canWrite) {
var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
return FS.symlink(target, path);
},forceLoadFile:function (obj) {
if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
var success = true;
if (typeof XMLHttpRequest !== 'undefined') {
throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
} else if (Module['read']) {
// Command-line.
try {
// WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as
// read() will try to parse UTF8.
obj.contents = intArrayFromString(Module['read'](obj.url), true);
obj.usedBytes = obj.contents.length;
} catch (e) {
success = false;
}
} else {
throw new Error('Cannot load without read() or XMLHttpRequest.');
}
if (!success) ___setErrNo(ERRNO_CODES.EIO);
return success;
},createLazyFile:function (parent, name, url, canRead, canWrite) {
// Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse.
function LazyUint8Array() {
this.lengthKnown = false;
this.chunks = []; // Loaded chunks. Index is the chunk number
}
LazyUint8Array.prototype.get = function LazyUint8Array_get(idx) {
if (idx > this.length-1 || idx < 0) {
return undefined;
}
var chunkOffset = idx % this.chunkSize;
var chunkNum = (idx / this.chunkSize)|0;
return this.getter(chunkNum)[chunkOffset];
}
LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) {
this.getter = getter;
}
LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLength() {
// Find length
var xhr = new XMLHttpRequest();
xhr.open('HEAD', url, false);
xhr.send(null);
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
var datalength = Number(xhr.getResponseHeader("Content-length"));
var header;
var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip";
var chunkSize = 1024*1024; // Chunk size in bytes
if (!hasByteServing) chunkSize = datalength;
// Function to get a range from the remote URL.
var doXHR = (function(from, to) {
if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
if (to > datalength-1) throw new Error("only " + datalength + " bytes available! programmer error!");
// TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
// Some hints to the browser that we want binary data.
if (typeof Uint8Array != 'undefined') xhr.responseType = 'arraybuffer';
if (xhr.overrideMimeType) {
xhr.overrideMimeType('text/plain; charset=x-user-defined');
}
xhr.send(null);
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
if (xhr.response !== undefined) {
return new Uint8Array(xhr.response || []);
} else {
return intArrayFromString(xhr.responseText || '', true);
}
});
var lazyArray = this;
lazyArray.setDataGetter(function(chunkNum) {
var start = chunkNum * chunkSize;
var end = (chunkNum+1) * chunkSize - 1; // including this byte
end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block
if (typeof(lazyArray.chunks[chunkNum]) === "undefined") {
lazyArray.chunks[chunkNum] = doXHR(start, end);
}
if (typeof(lazyArray.chunks[chunkNum]) === "undefined") throw new Error("doXHR failed!");
return lazyArray.chunks[chunkNum];
});
if (usesGzip || !datalength) {
// if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file
datalength = this.getter(0).length;
chunkSize = datalength;
console.log("LazyFiles on gzip forces download of the whole file when length is accessed");
}
this._length = datalength;
this._chunkSize = chunkSize;
this.lengthKnown = true;
}
if (typeof XMLHttpRequest !== 'undefined') {
if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc';
var lazyArray = new LazyUint8Array();
Object.defineProperties(lazyArray, {
length: {
get: function() {
if(!this.lengthKnown) {
this.cacheLength();
}
return this._length;
}
},
chunkSize: {
get: function() {
if(!this.lengthKnown) {
this.cacheLength();
}
return this._chunkSize;
}
}
});
var properties = { isDevice: false, contents: lazyArray };
} else {
var properties = { isDevice: false, url: url };
}
var node = FS.createFile(parent, name, properties, canRead, canWrite);
// This is a total hack, but I want to get this lazy file code out of the
// core of MEMFS. If we want to keep this lazy file concept I feel it should
// be its own thin LAZYFS proxying calls to MEMFS.
if (properties.contents) {
node.contents = properties.contents;
} else if (properties.url) {
node.contents = null;
node.url = properties.url;
}
// Add a function that defers querying the file size until it is asked the first time.
Object.defineProperties(node, {
usedBytes: {
get: function() { return this.contents.length; }
}
});
// override each stream op with one that tries to force load the lazy file first
var stream_ops = {};
var keys = Object.keys(node.stream_ops);
keys.forEach(function(key) {
var fn = node.stream_ops[key];
stream_ops[key] = function forceLoadLazyFile() {
if (!FS.forceLoadFile(node)) {
throw new FS.ErrnoError(ERRNO_CODES.EIO);
}
return fn.apply(null, arguments);
};
});
// use a custom read function
stream_ops.read = function stream_ops_read(stream, buffer, offset, length, position) {
if (!FS.forceLoadFile(node)) {
throw new FS.ErrnoError(ERRNO_CODES.EIO);
}
var contents = stream.node.contents;
if (position >= contents.length)
return 0;
var size = Math.min(contents.length - position, length);
assert(size >= 0);
if (contents.slice) { // normal array
for (var i = 0; i < size; i++) {
buffer[offset + i] = contents[position + i];
}
} else {
for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR
buffer[offset + i] = contents.get(position + i);
}
}
return size;
};
node.stream_ops = stream_ops;
return node;
},createPreloadedFile:function (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) {
Browser.init(); // XXX perhaps this method should move onto Browser?
// TODO we should allow people to just pass in a complete filename instead
// of parent and name being that we just join them anyways
var fullname = name ? PATH.resolve(PATH.join2(parent, name)) : parent;
var dep = getUniqueRunDependency('cp ' + fullname); // might have several active requests for the same fullname
function processData(byteArray) {
function finish(byteArray) {
if (preFinish) preFinish();
if (!dontCreateFile) {
FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
}
if (onload) onload();
removeRunDependency(dep);
}
var handled = false;
Module['preloadPlugins'].forEach(function(plugin) {
if (handled) return;
if (plugin['canHandle'](fullname)) {
plugin['handle'](byteArray, fullname, finish, function() {
if (onerror) onerror();
removeRunDependency(dep);
});
handled = true;
}
});
if (!handled) finish(byteArray);
}
addRunDependency(dep);
if (typeof url == 'string') {
Browser.asyncLoad(url, function(byteArray) {
processData(byteArray);
}, onerror);
} else {
processData(url);
}
},indexedDB:function () {
return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
},DB_NAME:function () {
return 'EM_FS_' + window.location.pathname;
},DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:function (paths, onload, onerror) {
onload = onload || function(){};
onerror = onerror || function(){};
var indexedDB = FS.indexedDB();
try {
var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
} catch (e) {
return onerror(e);
}
openRequest.onupgradeneeded = function openRequest_onupgradeneeded() {
console.log('creating db');
var db = openRequest.result;
db.createObjectStore(FS.DB_STORE_NAME);
};
openRequest.onsuccess = function openRequest_onsuccess() {
var db = openRequest.result;
var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite');
var files = transaction.objectStore(FS.DB_STORE_NAME);
var ok = 0, fail = 0, total = paths.length;
function finish() {
if (fail == 0) onload(); else onerror();
}
paths.forEach(function(path) {
var putRequest = files.put(FS.analyzePath(path).object.contents, path);
putRequest.onsuccess = function putRequest_onsuccess() { ok++; if (ok + fail == total) finish() };
putRequest.onerror = function putRequest_onerror() { fail++; if (ok + fail == total) finish() };
});
transaction.onerror = onerror;
};
openRequest.onerror = onerror;
},loadFilesFromDB:function (paths, onload, onerror) {
onload = onload || function(){};
onerror = onerror || function(){};
var indexedDB = FS.indexedDB();
try {
var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
} catch (e) {
return onerror(e);
}
openRequest.onupgradeneeded = onerror; // no database to load from
openRequest.onsuccess = function openRequest_onsuccess() {
var db = openRequest.result;
try {
var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly');
} catch(e) {
onerror(e);
return;
}
var files = transaction.objectStore(FS.DB_STORE_NAME);
var ok = 0, fail = 0, total = paths.length;
function finish() {
if (fail == 0) onload(); else onerror();
}
paths.forEach(function(path) {
var getRequest = files.get(path);
getRequest.onsuccess = function getRequest_onsuccess() {
if (FS.analyzePath(path).exists) {
FS.unlink(path);
}
FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true);
ok++;
if (ok + fail == total) finish();
};
getRequest.onerror = function getRequest_onerror() { fail++; if (ok + fail == total) finish() };
});
transaction.onerror = onerror;
};
openRequest.onerror = onerror;
}};var SYSCALLS={DEFAULT_POLLMASK:5,mappings:{},umask:511,calculateAt:function (dirfd, path) {
if (path[0] !== '/') {
// relative path
var dir;
if (dirfd === -100) {
dir = FS.cwd();
} else {
var dirstream = FS.getStream(dirfd);
if (!dirstream) throw new FS.ErrnoError(ERRNO_CODES.EBADF);
dir = dirstream.path;
}
path = PATH.join2(dir, path);
}
return path;
},doStat:function (func, path, buf) {
try {
var stat = func(path);
} catch (e) {
if (e && e.node && PATH.normalize(path) !== PATH.normalize(FS.getPath(e.node))) {
// an error occurred while trying to look up the path; we should just report ENOTDIR
return -ERRNO_CODES.ENOTDIR;
}
throw e;
}
HEAP32[((buf)>>2)]=stat.dev;
HEAP32[(((buf)+(4))>>2)]=0;
HEAP32[(((buf)+(8))>>2)]=stat.ino;
HEAP32[(((buf)+(12))>>2)]=stat.mode;
HEAP32[(((buf)+(16))>>2)]=stat.nlink;
HEAP32[(((buf)+(20))>>2)]=stat.uid;
HEAP32[(((buf)+(24))>>2)]=stat.gid;
HEAP32[(((buf)+(28))>>2)]=stat.rdev;
HEAP32[(((buf)+(32))>>2)]=0;
HEAP32[(((buf)+(36))>>2)]=stat.size;
HEAP32[(((buf)+(40))>>2)]=4096;
HEAP32[(((buf)+(44))>>2)]=stat.blocks;
HEAP32[(((buf)+(48))>>2)]=(stat.atime.getTime() / 1000)|0;
HEAP32[(((buf)+(52))>>2)]=0;
HEAP32[(((buf)+(56))>>2)]=(stat.mtime.getTime() / 1000)|0;
HEAP32[(((buf)+(60))>>2)]=0;
HEAP32[(((buf)+(64))>>2)]=(stat.ctime.getTime() / 1000)|0;
HEAP32[(((buf)+(68))>>2)]=0;
HEAP32[(((buf)+(72))>>2)]=stat.ino;
return 0;
},doMsync:function (addr, stream, len, flags) {
var buffer = new Uint8Array(HEAPU8.subarray(addr, addr + len));
FS.msync(stream, buffer, 0, len, flags);
},doMkdir:function (path, mode) {
// remove a trailing slash, if one - /a/b/ has basename of '', but
// we want to create b in the context of this function
path = PATH.normalize(path);
if (path[path.length-1] === '/') path = path.substr(0, path.length-1);
FS.mkdir(path, mode, 0);
return 0;
},doMknod:function (path, mode, dev) {
// we don't want this in the JS API as it uses mknod to create all nodes.
switch (mode & 61440) {
case 32768:
case 8192:
case 24576:
case 4096:
case 49152:
break;
default: return -ERRNO_CODES.EINVAL;
}
FS.mknod(path, mode, dev);
return 0;
},doReadlink:function (path, buf, bufsize) {
if (bufsize <= 0) return -ERRNO_CODES.EINVAL;
var ret = FS.readlink(path);
var len = Math.min(bufsize, lengthBytesUTF8(ret));
var endChar = HEAP8[buf+len];
stringToUTF8(ret, buf, bufsize+1);
// readlink is one of the rare functions that write out a C string, but does never append a null to the output buffer(!)
// stringToUTF8() always appends a null byte, so restore the character under the null byte after the write.
HEAP8[buf+len] = endChar;
return len;
},doAccess:function (path, amode) {
if (amode & ~7) {
// need a valid mode
return -ERRNO_CODES.EINVAL;
}
var node;
var lookup = FS.lookupPath(path, { follow: true });
node = lookup.node;
var perms = '';
if (amode & 4) perms += 'r';
if (amode & 2) perms += 'w';
if (amode & 1) perms += 'x';
if (perms /* otherwise, they've just passed F_OK */ && FS.nodePermissions(node, perms)) {
return -ERRNO_CODES.EACCES;
}
return 0;
},doDup:function (path, flags, suggestFD) {
var suggest = FS.getStream(suggestFD);
if (suggest) FS.close(suggest);
return FS.open(path, flags, 0, suggestFD, suggestFD).fd;
},doReadv:function (stream, iov, iovcnt, offset) {
var ret = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = HEAP32[(((iov)+(i*8))>>2)];
var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
var curr = FS.read(stream, HEAP8,ptr, len, offset);
if (curr < 0) return -1;
ret += curr;
if (curr < len) break; // nothing more to read
}
return ret;
},doWritev:function (stream, iov, iovcnt, offset) {
var ret = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = HEAP32[(((iov)+(i*8))>>2)];
var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
var curr = FS.write(stream, HEAP8,ptr, len, offset);
if (curr < 0) return -1;
ret += curr;
}
return ret;
},varargs:0,get:function (varargs) {
SYSCALLS.varargs += 4;
var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)];
return ret;
},getStr:function () {
var ret = Pointer_stringify(SYSCALLS.get());
return ret;
},getStreamFromFD:function () {
var stream = FS.getStream(SYSCALLS.get());
if (!stream) throw new FS.ErrnoError(ERRNO_CODES.EBADF);
return stream;
},getSocketFromFD:function () {
var socket = SOCKFS.getSocket(SYSCALLS.get());
if (!socket) throw new FS.ErrnoError(ERRNO_CODES.EBADF);
return socket;
},getSocketAddress:function (allowNull) {
var addrp = SYSCALLS.get(), addrlen = SYSCALLS.get();
if (allowNull && addrp === 0) return null;
var info = __read_sockaddr(addrp, addrlen);
if (info.errno) throw new FS.ErrnoError(info.errno);
info.addr = DNS.lookup_addr(info.addr) || info.addr;
return info;
},get64:function () {
var low = SYSCALLS.get(), high = SYSCALLS.get();
if (low >= 0) assert(high === 0);
else assert(high === -1);
return low;
},getZero:function () {
assert(SYSCALLS.get() === 0);
}};function ___syscall54(which, varargs) {SYSCALLS.varargs = varargs;
try {
// ioctl
var stream = SYSCALLS.getStreamFromFD(), op = SYSCALLS.get();
switch (op) {
case 21505: {
if (!stream.tty) return -ERRNO_CODES.ENOTTY;
return 0;
}
case 21506: {
if (!stream.tty) return -ERRNO_CODES.ENOTTY;
return 0; // no-op, not actually adjusting terminal settings
}
case 21519: {
if (!stream.tty) return -ERRNO_CODES.ENOTTY;
var argp = SYSCALLS.get();
HEAP32[((argp)>>2)]=0;
return 0;
}
case 21520: {
if (!stream.tty) return -ERRNO_CODES.ENOTTY;
return -ERRNO_CODES.EINVAL; // not supported
}
case 21531: {
var argp = SYSCALLS.get();
return FS.ioctl(stream, op, argp);
}
default: abort('bad ioctl syscall ' + op);
}
} catch (e) {
if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
return -e.errno;
}
}
function __Unwind_GetIPInfo() {
abort('Unwind_GetIPInfo');
}
function _llvm_trap() {
abort('trap!');
}
var _llvm_ctlz_i32=true;
function __emscripten_traverse_stack(args) {
if (!args || !args.callee || !args.callee.name) {
return [null, '', ''];
}
var funstr = args.callee.toString();
var funcname = args.callee.name;
var str = '(';
var first = true;
for(i in args) {
var a = args[i];
if (!first) {
str += ", ";
}
first = false;
if (typeof a === 'number' || typeof a === 'string') {
str += a;
} else {
str += '(' + typeof a + ')';
}
}
str += ')';
var caller = args.callee.caller;
args = caller ? caller.arguments : [];
if (first)
str = '';
return [args, funcname, str];
}function _emscripten_get_callstack_js(flags) {
var callstack = jsStackTrace();
// Find the symbols in the callstack that corresponds to the functions that report callstack information, and remove everyhing up to these from the output.
var iThisFunc = callstack.lastIndexOf('_emscripten_log');
var iThisFunc2 = callstack.lastIndexOf('_emscripten_get_callstack');
var iNextLine = callstack.indexOf('\n', Math.max(iThisFunc, iThisFunc2))+1;
callstack = callstack.slice(iNextLine);
// If user requested to see the original source stack, but no source map information is available, just fall back to showing the JS stack.
if (flags & 8/*EM_LOG_C_STACK*/ && typeof emscripten_source_map === 'undefined') {
Runtime.warnOnce('Source map information is not available, emscripten_log with EM_LOG_C_STACK will be ignored. Build with "--pre-js $EMSCRIPTEN/src/emscripten-source-map.min.js" linker flag to add source map loading to code.');
flags ^= 8/*EM_LOG_C_STACK*/;
flags |= 16/*EM_LOG_JS_STACK*/;
}
var stack_args = null;
if (flags & 128 /*EM_LOG_FUNC_PARAMS*/) {
// To get the actual parameters to the functions, traverse the stack via the unfortunately deprecated 'arguments.callee' method, if it works:
var stack_args = __emscripten_traverse_stack(arguments);
while (stack_args[1].indexOf('_emscripten_') >= 0)
stack_args = __emscripten_traverse_stack(stack_args[0]);
}
// Process all lines:
lines = callstack.split('\n');
callstack = '';
var newFirefoxRe = new RegExp('\\s*(.*?)@(.*?):([0-9]+):([0-9]+)'); // New FF30 with column info: extract components of form ' Object._main@http://server.com:4324:12'
var firefoxRe = new RegExp('\\s*(.*?)@(.*):(.*)(:(.*))?'); // Old FF without column info: extract components of form ' Object._main@http://server.com:4324'
var chromeRe = new RegExp('\\s*at (.*?) \\\((.*):(.*):(.*)\\\)'); // Extract components of form ' at Object._main (http://server.com/file.html:4324:12)'
for(l in lines) {
var line = lines[l];
var jsSymbolName = '';
var file = '';
var lineno = 0;
var column = 0;
var parts = chromeRe.exec(line);
if (parts && parts.length == 5) {
jsSymbolName = parts[1];
file = parts[2];
lineno = parts[3];
column = parts[4];
} else {
parts = newFirefoxRe.exec(line);
if (!parts) parts = firefoxRe.exec(line);
if (parts && parts.length >= 4) {
jsSymbolName = parts[1];
file = parts[2];
lineno = parts[3];
column = parts[4]|0; // Old Firefox doesn't carry column information, but in new FF30, it is present. See https://bugzilla.mozilla.org/show_bug.cgi?id=762556
} else {
// Was not able to extract this line for demangling/sourcemapping purposes. Output it as-is.
callstack += line + '\n';
continue;
}
}
// Try to demangle the symbol, but fall back to showing the original JS symbol name if not available.
var cSymbolName = (flags & 32/*EM_LOG_DEMANGLE*/) ? demangle(jsSymbolName) : jsSymbolName;
if (!cSymbolName) {
cSymbolName = jsSymbolName;
}
var haveSourceMap = false;
if (flags & 8/*EM_LOG_C_STACK*/) {
var orig = emscripten_source_map.originalPositionFor({line: lineno, column: column});
haveSourceMap = (orig && orig.source);
if (haveSourceMap) {
if (flags & 64/*EM_LOG_NO_PATHS*/) {
orig.source = orig.source.substring(orig.source.replace(/\\/g, "/").lastIndexOf('/')+1);
}
callstack += ' at ' + cSymbolName + ' (' + orig.source + ':' + orig.line + ':' + orig.column + ')\n';
}
}
if ((flags & 16/*EM_LOG_JS_STACK*/) || !haveSourceMap) {
if (flags & 64/*EM_LOG_NO_PATHS*/) {
file = file.substring(file.replace(/\\/g, "/").lastIndexOf('/')+1);
}
callstack += (haveSourceMap ? (' = '+jsSymbolName) : (' at '+cSymbolName)) + ' (' + file + ':' + lineno + ':' + column + ')\n';
}
// If we are still keeping track with the callstack by traversing via 'arguments.callee', print the function parameters as well.
if (flags & 128 /*EM_LOG_FUNC_PARAMS*/ && stack_args[0]) {
if (stack_args[1] == jsSymbolName && stack_args[2].length > 0) {
callstack = callstack.replace(/\s+$/, '');
callstack += ' with values: ' + stack_args[1] + stack_args[2] + '\n';
}
stack_args = __emscripten_traverse_stack(stack_args[0]);
}
}
// Trim extra whitespace at the end of the output.
callstack = callstack.replace(/\s+$/, '');
return callstack;
}function __Unwind_Backtrace(func, arg) {
var trace = _emscripten_get_callstack_js();
var parts = trace.split('\n');
for (var i = 0; i < parts.length; i++) {
var ret = Runtime.dynCall('iii', [0, arg]);
if (ret !== 0) return;
}
}
function _pthread_cleanup_push(routine, arg) {
__ATEXIT__.push(function() { Runtime.dynCall('vi', routine, [arg]) })
_pthread_cleanup_push.level = __ATEXIT__.length;
}
var _environ=STATICTOP; STATICTOP += 16;;var ___environ=_environ;function ___buildEnvironment(env) {
// WARNING: Arbitrary limit!
var MAX_ENV_VALUES = 64;
var TOTAL_ENV_SIZE = 1024;
// Statically allocate memory for the environment.
var poolPtr;
var envPtr;
if (!___buildEnvironment.called) {
___buildEnvironment.called = true;
// Set default values. Use string keys for Closure Compiler compatibility.
ENV['USER'] = ENV['LOGNAME'] = 'web_user';
ENV['PATH'] = '/';
ENV['PWD'] = '/';
ENV['HOME'] = '/home/web_user';
ENV['LANG'] = 'C';
ENV['_'] = Module['thisProgram'];
// Allocate memory.
poolPtr = allocate(TOTAL_ENV_SIZE, 'i8', ALLOC_STATIC);
envPtr = allocate(MAX_ENV_VALUES * 4,
'i8*', ALLOC_STATIC);
HEAP32[((envPtr)>>2)]=poolPtr;
HEAP32[((_environ)>>2)]=envPtr;
} else {
envPtr = HEAP32[((_environ)>>2)];
poolPtr = HEAP32[((envPtr)>>2)];
}
// Collect key=value lines.
var strings = [];
var totalSize = 0;
for (var key in env) {
if (typeof env[key] === 'string') {
var line = key + '=' + env[key];
strings.push(line);
totalSize += line.length;
}
}
if (totalSize > TOTAL_ENV_SIZE) {
throw new Error('Environment size exceeded TOTAL_ENV_SIZE!');
}
// Make new.
var ptrSize = 4;
for (var i = 0; i < strings.length; i++) {
var line = strings[i];
writeAsciiToMemory(line, poolPtr);
HEAP32[(((envPtr)+(i * ptrSize))>>2)]=poolPtr;
poolPtr += line.length + 1;
}
HEAP32[(((envPtr)+(strings.length * ptrSize))>>2)]=0;
}var ENV={};function _getenv(name) {
// char *getenv(const char *name);
// http://pubs.opengroup.org/onlinepubs/009695399/functions/getenv.html
if (name === 0) return 0;
name = Pointer_stringify(name);
if (!ENV.hasOwnProperty(name)) return 0;
if (_getenv.ret) _free(_getenv.ret);
_getenv.ret = allocate(intArrayFromString(ENV[name]), 'i8', ALLOC_NORMAL);
return _getenv.ret;
}
function _pthread_cleanup_pop() {
assert(_pthread_cleanup_push.level == __ATEXIT__.length, 'cannot pop if something else added meanwhile!');
__ATEXIT__.pop();
_pthread_cleanup_push.level = __ATEXIT__.length;
}
function _pthread_rwlock_rdlock() { return 0; }
function ___cxa_find_matching_catch_3() {
return ___cxa_find_matching_catch.apply(null, arguments);
}
Module["_pthread_mutex_unlock"] = _pthread_mutex_unlock;
function _pthread_cond_init() { return 0; }
function ___syscall6(which, varargs) {SYSCALLS.varargs = varargs;
try {
// close
var stream = SYSCALLS.getStreamFromFD();
FS.close(stream);
return 0;
} catch (e) {
if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
return -e.errno;
}
}
var _llvm_nacl_atomic_cmpxchg_i8=undefined;
Module["_sbrk"] = _sbrk;
function _pthread_cond_signal() { return 0; }
function _dladdr(addr, info) {
// report all function pointers as coming from this program itself XXX not really correct in any way
var fname = allocate(intArrayFromString(Module['thisProgram'] || './this.program'), 'i8', ALLOC_NORMAL); // XXX leak
HEAP32[((addr)>>2)]=fname;
HEAP32[(((addr)+(4))>>2)]=0;
HEAP32[(((addr)+(8))>>2)]=0;
HEAP32[(((addr)+(12))>>2)]=0;
return 1;
}
function ___gxx_personality_v0() {
}
function _pthread_cond_wait() { return 0; }
function ___syscall4(which, varargs) {SYSCALLS.varargs = varargs;
try {
// write
var stream = SYSCALLS.getStreamFromFD(), buf = SYSCALLS.get(), count = SYSCALLS.get();
return FS.write(stream, HEAP8,buf, count);
} catch (e) {
if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
return -e.errno;
}
}
Module["_llvm_bswap_i32"] = _llvm_bswap_i32;
function _pthread_condattr_init() { return 0; }
Module["_llvm_bswap_i16"] = _llvm_bswap_i16;
function ___cxa_find_matching_catch_2() {
return ___cxa_find_matching_catch.apply(null, arguments);
}
function ___syscall140(which, varargs) {SYSCALLS.varargs = varargs;
try {
// llseek
var stream = SYSCALLS.getStreamFromFD(), offset_high = SYSCALLS.get(), offset_low = SYSCALLS.get(), result = SYSCALLS.get(), whence = SYSCALLS.get();
var offset = offset_low;
assert(offset_high === 0);
FS.llseek(stream, offset, whence);
HEAP32[((result)>>2)]=stream.position;
if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state
return 0;
} catch (e) {
if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
return -e.errno;
}
}
function ___syscall146(which, varargs) {SYSCALLS.varargs = varargs;
try {
// writev
var stream = SYSCALLS.getStreamFromFD(), iov = SYSCALLS.get(), iovcnt = SYSCALLS.get();
return SYSCALLS.doWritev(stream, iov, iovcnt);
} catch (e) {
if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
return -e.errno;
}
}
var _llvm_nacl_atomic_cmpxchg_i32=undefined;
function _pthread_rwlock_unlock() { return 0; }
FS.staticInit();__ATINIT__.unshift(function() { if (!Module["noFSInit"] && !FS.init.initialized) FS.init() });__ATMAIN__.push(function() { FS.ignorePermissions = false });__ATEXIT__.push(function() { FS.quit() });Module["FS_createFolder"] = FS.createFolder;Module["FS_createPath"] = FS.createPath;Module["FS_createDataFile"] = FS.createDataFile;Module["FS_createPreloadedFile"] = FS.createPreloadedFile;Module["FS_createLazyFile"] = FS.createLazyFile;Module["FS_createLink"] = FS.createLink;Module["FS_createDevice"] = FS.createDevice;Module["FS_unlink"] = FS.unlink;;
__ATINIT__.unshift(function() { TTY.init() });__ATEXIT__.push(function() { TTY.shutdown() });;
if (ENVIRONMENT_IS_NODE) { var fs = require("fs"); var NODEJS_PATH = require("path"); NODEFS.staticInit(); };
___buildEnvironment(ENV);;
DYNAMICTOP_PTR = allocate(1, "i32", ALLOC_STATIC);
STACK_BASE = STACKTOP = Runtime.alignMemory(STATICTOP);
STACK_MAX = STACK_BASE + TOTAL_STACK;
DYNAMIC_BASE = Runtime.alignMemory(STACK_MAX);
HEAP32[DYNAMICTOP_PTR>>2] = DYNAMIC_BASE;
staticSealed = true; // seal the static portion of memory
assert(DYNAMIC_BASE < TOTAL_MEMORY, "TOTAL_MEMORY not big enough for stack");
function nullFunc_iiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
function nullFunc_i(x) { Module["printErr"]("Invalid function pointer called with signature 'i'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
function nullFunc_vi(x) { Module["printErr"]("Invalid function pointer called with signature 'vi'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
function nullFunc_vii(x) { Module["printErr"]("Invalid function pointer called with signature 'vii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
function nullFunc_ii(x) { Module["printErr"]("Invalid function pointer called with signature 'ii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
function nullFunc_ji(x) { Module["printErr"]("Invalid function pointer called with signature 'ji'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
function nullFunc_v(x) { Module["printErr"]("Invalid function pointer called with signature 'v'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
function nullFunc_viiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
function nullFunc_iii(x) { Module["printErr"]("Invalid function pointer called with signature 'iii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
function nullFunc_viii(x) { Module["printErr"]("Invalid function pointer called with signature 'viii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)"); Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }
Module['wasmTableSize'] = 1600;
function invoke_iiii(index,a1,a2,a3) {
try {
return Module["dynCall_iiii"](index,a1,a2,a3);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
function invoke_i(index) {
try {
return Module["dynCall_i"](index);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
function invoke_vi(index,a1) {
try {
Module["dynCall_vi"](index,a1);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
function invoke_vii(index,a1,a2) {
try {
Module["dynCall_vii"](index,a1,a2);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
function invoke_ii(index,a1) {
try {
return Module["dynCall_ii"](index,a1);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
function invoke_ji(index,a1) {
try {
return Module["dynCall_ji"](index,a1);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
function invoke_v(index) {
try {
Module["dynCall_v"](index);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
function invoke_viiii(index,a1,a2,a3,a4) {
try {
Module["dynCall_viiii"](index,a1,a2,a3,a4);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
function invoke_iii(index,a1,a2) {
try {
return Module["dynCall_iii"](index,a1,a2);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
function invoke_viii(index,a1,a2,a3) {
try {
Module["dynCall_viii"](index,a1,a2,a3);
} catch(e) {
if (typeof e !== 'number' && e !== 'longjmp') throw e;
asm["setThrew"](1, 0);
}
}
Module.asmGlobalArg = { "Math": Math, "Int8Array": Int8Array, "Int16Array": Int16Array, "Int32Array": Int32Array, "Uint8Array": Uint8Array, "Uint16Array": Uint16Array, "Uint32Array": Uint32Array, "Float32Array": Float32Array, "Float64Array": Float64Array, "NaN": NaN, "Infinity": Infinity };
Module.asmLibraryArg = { "abort": abort, "assert": assert, "enlargeMemory": enlargeMemory, "getTotalMemory": getTotalMemory, "abortOnCannotGrowMemory": abortOnCannotGrowMemory, "abortStackOverflow": abortStackOverflow, "nullFunc_iiii": nullFunc_iiii, "nullFunc_i": nullFunc_i, "nullFunc_vi": nullFunc_vi, "nullFunc_vii": nullFunc_vii, "nullFunc_ii": nullFunc_ii, "nullFunc_ji": nullFunc_ji, "nullFunc_v": nullFunc_v, "nullFunc_viiii": nullFunc_viiii, "nullFunc_iii": nullFunc_iii, "nullFunc_viii": nullFunc_viii, "invoke_iiii": invoke_iiii, "invoke_i": invoke_i, "invoke_vi": invoke_vi, "invoke_vii": invoke_vii, "invoke_ii": invoke_ii, "invoke_ji": invoke_ji, "invoke_v": invoke_v, "invoke_viiii": invoke_viiii, "invoke_iii": invoke_iii, "invoke_viii": invoke_viii, "_pthread_cleanup_pop": _pthread_cleanup_pop, "_pthread_cond_wait": _pthread_cond_wait, "_pthread_key_create": _pthread_key_create, "__Unwind_FindEnclosingFunction": __Unwind_FindEnclosingFunction, "_emscripten_get_callstack_js": _emscripten_get_callstack_js, "___gxx_personality_v0": ___gxx_personality_v0, "_pthread_rwlock_unlock": _pthread_rwlock_unlock, "___cxa_find_matching_catch_2": ___cxa_find_matching_catch_2, "___cxa_find_matching_catch": ___cxa_find_matching_catch, "___buildEnvironment": ___buildEnvironment, "_pthread_cond_init": _pthread_cond_init, "__Unwind_GetIPInfo": __Unwind_GetIPInfo, "_pthread_mutexattr_destroy": _pthread_mutexattr_destroy, "__emscripten_traverse_stack": __emscripten_traverse_stack, "___setErrNo": ___setErrNo, "___cxa_free_exception": ___cxa_free_exception, "_pthread_key_delete": _pthread_key_delete, "___cxa_allocate_exception": ___cxa_allocate_exception, "_emscripten_memcpy_big": _emscripten_memcpy_big, "___resumeException": ___resumeException, "__ZSt18uncaught_exceptionv": __ZSt18uncaught_exceptionv, "_pthread_condattr_setclock": _pthread_condattr_setclock, "_pthread_getspecific": _pthread_getspecific, "___cxa_find_matching_catch_3": ___cxa_find_matching_catch_3, "_pthread_rwlock_rdlock": _pthread_rwlock_rdlock, "_pthread_cond_signal": _pthread_cond_signal, "_pthread_mutex_destroy": _pthread_mutex_destroy, "_abort": _abort, "_pthread_condattr_init": _pthread_condattr_init, "_pthread_mutexattr_settype": _pthread_mutexattr_settype, "_getenv": _getenv, "_pthread_condattr_destroy": _pthread_condattr_destroy, "___syscall54": ___syscall54, "___unlock": ___unlock, "___syscall140": ___syscall140, "_pthread_mutexattr_init": _pthread_mutexattr_init, "_pthread_setspecific": _pthread_setspecific, "_dladdr": _dladdr, "___cxa_throw": ___cxa_throw, "___lock": ___lock, "___syscall6": ___syscall6, "_pthread_cleanup_push": _pthread_cleanup_push, "___syscall4": ___syscall4, "_pthread_cond_destroy": _pthread_cond_destroy, "_llvm_trap": _llvm_trap, "_pthread_mutex_init": _pthread_mutex_init, "__Unwind_Backtrace": __Unwind_Backtrace, "___syscall146": ___syscall146, "STACKTOP": STACKTOP, "STACK_MAX": STACK_MAX, "DYNAMICTOP_PTR": DYNAMICTOP_PTR, "tempDoublePtr": tempDoublePtr, "ABORT": ABORT };
// EMSCRIPTEN_START_ASM
var asm =Module["asm"]// EMSCRIPTEN_END_ASM
(Module.asmGlobalArg, Module.asmLibraryArg, buffer);
var real__malloc = asm["_malloc"]; asm["_malloc"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__malloc.apply(null, arguments);
};
var real__fflush = asm["_fflush"]; asm["_fflush"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__fflush.apply(null, arguments);
};
var real__main = asm["_main"]; asm["_main"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__main.apply(null, arguments);
};
var real__htonl = asm["_htonl"]; asm["_htonl"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__htonl.apply(null, arguments);
};
var real__memmove = asm["_memmove"]; asm["_memmove"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__memmove.apply(null, arguments);
};
var real__pthread_self = asm["_pthread_self"]; asm["_pthread_self"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__pthread_self.apply(null, arguments);
};
var real__pthread_mutex_unlock = asm["_pthread_mutex_unlock"]; asm["_pthread_mutex_unlock"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__pthread_mutex_unlock.apply(null, arguments);
};
var real__llvm_bswap_i16 = asm["_llvm_bswap_i16"]; asm["_llvm_bswap_i16"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__llvm_bswap_i16.apply(null, arguments);
};
var real__pthread_mutex_lock = asm["_pthread_mutex_lock"]; asm["_pthread_mutex_lock"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__pthread_mutex_lock.apply(null, arguments);
};
var real____errno_location = asm["___errno_location"]; asm["___errno_location"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real____errno_location.apply(null, arguments);
};
var real__sbrk = asm["_sbrk"]; asm["_sbrk"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__sbrk.apply(null, arguments);
};
var real__free = asm["_free"]; asm["_free"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__free.apply(null, arguments);
};
var real__htons = asm["_htons"]; asm["_htons"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__htons.apply(null, arguments);
};
var real__llvm_bswap_i32 = asm["_llvm_bswap_i32"]; asm["_llvm_bswap_i32"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__llvm_bswap_i32.apply(null, arguments);
};
var real__ntohs = asm["_ntohs"]; asm["_ntohs"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__ntohs.apply(null, arguments);
};
var _malloc = Module["_malloc"] = asm["_malloc"];
var _fflush = Module["_fflush"] = asm["_fflush"];
var _main = Module["_main"] = asm["_main"];
var _htonl = Module["_htonl"] = asm["_htonl"];
var _memmove = Module["_memmove"] = asm["_memmove"];
var _pthread_self = Module["_pthread_self"] = asm["_pthread_self"];
var _memset = Module["_memset"] = asm["_memset"];
var runPostSets = Module["runPostSets"] = asm["runPostSets"];
var _pthread_mutex_unlock = Module["_pthread_mutex_unlock"] = asm["_pthread_mutex_unlock"];
var _llvm_bswap_i16 = Module["_llvm_bswap_i16"] = asm["_llvm_bswap_i16"];
var _pthread_mutex_lock = Module["_pthread_mutex_lock"] = asm["_pthread_mutex_lock"];
var _memcpy = Module["_memcpy"] = asm["_memcpy"];
var ___errno_location = Module["___errno_location"] = asm["___errno_location"];
var _sbrk = Module["_sbrk"] = asm["_sbrk"];
var _free = Module["_free"] = asm["_free"];
var _htons = Module["_htons"] = asm["_htons"];
var _llvm_bswap_i32 = Module["_llvm_bswap_i32"] = asm["_llvm_bswap_i32"];
var _ntohs = Module["_ntohs"] = asm["_ntohs"];
var dynCall_iiii = Module["dynCall_iiii"] = asm["dynCall_iiii"];
var dynCall_i = Module["dynCall_i"] = asm["dynCall_i"];
var dynCall_vi = Module["dynCall_vi"] = asm["dynCall_vi"];
var dynCall_vii = Module["dynCall_vii"] = asm["dynCall_vii"];
var dynCall_ii = Module["dynCall_ii"] = asm["dynCall_ii"];
var dynCall_ji = Module["dynCall_ji"] = asm["dynCall_ji"];
var dynCall_v = Module["dynCall_v"] = asm["dynCall_v"];
var dynCall_viiii = Module["dynCall_viiii"] = asm["dynCall_viiii"];
var dynCall_iii = Module["dynCall_iii"] = asm["dynCall_iii"];
var dynCall_viii = Module["dynCall_viii"] = asm["dynCall_viii"];
;
Runtime.stackAlloc = asm['stackAlloc'];
Runtime.stackSave = asm['stackSave'];
Runtime.stackRestore = asm['stackRestore'];
Runtime.establishStackSpace = asm['establishStackSpace'];
Runtime.setTempRet0 = asm['setTempRet0'];
Runtime.getTempRet0 = asm['getTempRet0'];
// === Auto-generated postamble setup entry stuff ===
if (memoryInitializer) {
if (typeof Module['locateFile'] === 'function') {
memoryInitializer = Module['locateFile'](memoryInitializer);
} else if (Module['memoryInitializerPrefixURL']) {
memoryInitializer = Module['memoryInitializerPrefixURL'] + memoryInitializer;
}
if (ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL) {
var data = Module['readBinary'](memoryInitializer);
HEAPU8.set(data, Runtime.GLOBAL_BASE);
} else {
addRunDependency('memory initializer');
var applyMemoryInitializer = function(data) {
if (data.byteLength) data = new Uint8Array(data);
for (var i = 0; i < data.length; i++) {
assert(HEAPU8[Runtime.GLOBAL_BASE + i] === 0, "area for memory initializer should not have been touched before it's loaded");
}
HEAPU8.set(data, Runtime.GLOBAL_BASE);
// Delete the typed array that contains the large blob of the memory initializer request response so that
// we won't keep unnecessary memory lying around. However, keep the XHR object itself alive so that e.g.
// its .status field can still be accessed later.
if (Module['memoryInitializerRequest']) delete Module['memoryInitializerRequest'].response;
removeRunDependency('memory initializer');
}
function doBrowserLoad() {
Module['readAsync'](memoryInitializer, applyMemoryInitializer, function() {
throw 'could not load memory initializer ' + memoryInitializer;
});
}
if (Module['memoryInitializerRequest']) {
// a network request has already been created, just use that
function useRequest() {
var request = Module['memoryInitializerRequest'];
if (request.status !== 200 && request.status !== 0) {
// If you see this warning, the issue may be that you are using locateFile or memoryInitializerPrefixURL, and defining them in JS. That
// means that the HTML file doesn't know about them, and when it tries to create the mem init request early, does it to the wrong place.
// Look in your browser's devtools network console to see what's going on.
console.warn('a problem seems to have happened with Module.memoryInitializerRequest, status: ' + request.status + ', retrying ' + memoryInitializer);
doBrowserLoad();
return;
}
applyMemoryInitializer(request.response);
}
if (Module['memoryInitializerRequest'].response) {
setTimeout(useRequest, 0); // it's already here; but, apply it asynchronously
} else {
Module['memoryInitializerRequest'].addEventListener('load', useRequest); // wait for it
}
} else {
// fetch it from the network ourselves
doBrowserLoad();
}
}
}
function ExitStatus(status) {
this.name = "ExitStatus";
this.message = "Program terminated with exit(" + status + ")";
this.status = status;
};
ExitStatus.prototype = new Error();
ExitStatus.prototype.constructor = ExitStatus;
var initialStackTop;
var preloadStartTime = null;
var calledMain = false;
dependenciesFulfilled = function runCaller() {
// If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
if (!Module['calledRun']) run();
if (!Module['calledRun']) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
}
Module['callMain'] = Module.callMain = function callMain(args) {
assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on __ATMAIN__)');
assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');
args = args || [];
ensureInitRuntime();
var argc = args.length+1;
function pad() {
for (var i = 0; i < 4-1; i++) {
argv.push(0);
}
}
var argv = [allocate(intArrayFromString(Module['thisProgram']), 'i8', ALLOC_NORMAL) ];
pad();
for (var i = 0; i < argc-1; i = i + 1) {
argv.push(allocate(intArrayFromString(args[i]), 'i8', ALLOC_NORMAL));
pad();
}
argv.push(0);
argv = allocate(argv, 'i32', ALLOC_NORMAL);
try {
var ret = Module['_main'](argc, argv, 0);
// if we're not running an evented main loop, it's time to exit
exit(ret, /* implicit = */ true);
}
catch(e) {
if (e instanceof ExitStatus) {
// exit() throws this once it's done to make sure execution
// has been stopped completely
return;
} else if (e == 'SimulateInfiniteLoop') {
// running an evented main loop, don't immediately exit
Module['noExitRuntime'] = true;
return;
} else {
if (e && typeof e === 'object' && e.stack) Module.printErr('exception thrown: ' + [e, e.stack]);
throw e;
}
} finally {
calledMain = true;
}
}
function run(args) {
args = args || Module['arguments'];
if (preloadStartTime === null) preloadStartTime = Date.now();
if (runDependencies > 0) {
Module.printErr('run() called, but dependencies remain, so not running');
return;
}
writeStackCookie();
preRun();
if (runDependencies > 0) return; // a preRun added a dependency, run will be called later
if (Module['calledRun']) return; // run may have just been called through dependencies being fulfilled just in this very frame
function doRun() {
if (Module['calledRun']) return; // run may have just been called while the async setStatus time below was happening
Module['calledRun'] = true;
if (ABORT) return;
ensureInitRuntime();
preMain();
if (ENVIRONMENT_IS_WEB && preloadStartTime !== null) {
Module.printErr('pre-main prep time: ' + (Date.now() - preloadStartTime) + ' ms');
}
if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized']();
if (Module['_main'] && shouldRunNow) Module['callMain'](args);
postRun();
}
if (Module['setStatus']) {
Module['setStatus']('Running...');
setTimeout(function() {
setTimeout(function() {
Module['setStatus']('');
}, 1);
doRun();
}, 1);
} else {
doRun();
}
checkStackCookie();
}
Module['run'] = Module.run = run;
function exit(status, implicit) {
if (implicit && Module['noExitRuntime']) {
Module.printErr('exit(' + status + ') implicitly called by end of main(), but noExitRuntime, so not exiting the runtime (you can use emscripten_force_exit, if you want to force a true shutdown)');
return;
}
if (Module['noExitRuntime']) {
Module.printErr('exit(' + status + ') called, but noExitRuntime, so halting execution but not exiting the runtime or preventing further async execution (you can use emscripten_force_exit, if you want to force a true shutdown)');
} else {
ABORT = true;
EXITSTATUS = status;
STACKTOP = initialStackTop;
exitRuntime();
if (Module['onExit']) Module['onExit'](status);
}
if (ENVIRONMENT_IS_NODE) {
process['exit'](status);
} else if (ENVIRONMENT_IS_SHELL && typeof quit === 'function') {
quit(status);
}
// if we reach here, we must throw an exception to halt the current execution
throw new ExitStatus(status);
}
Module['exit'] = Module.exit = exit;
var abortDecorators = [];
function abort(what) {
if (what !== undefined) {
Module.print(what);
Module.printErr(what);
what = JSON.stringify(what)
} else {
what = '';
}
ABORT = true;
EXITSTATUS = 1;
var extra = '';
var output = 'abort(' + what + ') at ' + stackTrace() + extra;
if (abortDecorators) {
abortDecorators.forEach(function(decorator) {
output = decorator(output, what);
});
}
throw output;
}
Module['abort'] = Module.abort = abort;
// {{PRE_RUN_ADDITIONS}}
if (Module['preInit']) {
if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
while (Module['preInit'].length > 0) {
Module['preInit'].pop()();
}
}
// shouldRunNow refers to calling main(), not run().
var shouldRunNow = true;
if (Module['noInitialRun']) {
shouldRunNow = false;
}
run();
// {{POST_RUN_ADDITIONS}}
// {{MODULE_ADDITIONS}}
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