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chikoski/helloworld.js

Created September 18, 2013 23:53
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helloworld.js
// Note: Some Emscripten settings will significantly limit the speed of the generated code.
// Note: Some Emscripten settings may limit the speed of the generated code.
// 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 = eval('(function() { try { return Module || {} } catch(e) { return {} } })()');
// 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_NODE = typeof process === 'object' && typeof require === 'function';
var ENVIRONMENT_IS_WEB = typeof window === 'object';
var ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
var 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
Module['print'] = function(x) {
process['stdout'].write(x + '\n');
};
Module['printErr'] = function(x) {
process['stderr'].write(x + '\n');
};
var nodeFS = require('fs');
var nodePath = require('path');
Module['read'] = function(filename, binary) {
filename = nodePath['normalize'](filename);
var ret = nodeFS['readFileSync'](filename);
// The path is absolute if the normalized version is the same as the resolved.
if (!ret && filename != nodePath['resolve'](filename)) {
filename = path.join(__dirname, '..', 'src', filename);
ret = nodeFS['readFileSync'](filename);
}
if (ret && !binary) ret = ret.toString();
return ret;
};
Module['readBinary'] = function(filename) { return Module['read'](filename, true) };
Module['load'] = function(f) {
globalEval(read(f));
};
Module['arguments'] = process['argv'].slice(2);
module.exports = Module;
}
else if (ENVIRONMENT_IS_SHELL) {
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() { throw 'no read() available (jsc?)' };
}
Module['readBinary'] = function(f) {
return read(f, 'binary');
};
if (typeof scriptArgs != 'undefined') {
Module['arguments'] = scriptArgs;
} else if (typeof arguments != 'undefined') {
Module['arguments'] = arguments;
}
this['Module'] = Module;
}
else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
Module['read'] = function(url) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.send(null);
return xhr.responseText;
};
if (typeof arguments != 'undefined') {
Module['arguments'] = arguments;
}
if (ENVIRONMENT_IS_WEB) {
Module['print'] = function(x) {
console.log(x);
};
Module['printErr'] = function(x) {
console.log(x);
};
this['Module'] = Module;
} else if (ENVIRONMENT_IS_WORKER) {
// We can do very little here...
var TRY_USE_DUMP = false;
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
}));
Module['load'] = importScripts;
}
}
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'] == 'undefined' && Module['read']) {
Module['load'] = function(f) {
globalEval(Module['read'](f));
};
}
if (!Module['print']) {
Module['print'] = function(){};
}
if (!Module['printErr']) {
Module['printErr'] = Module['print'];
}
if (!Module['arguments']) {
Module['arguments'] = [];
}
// *** 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];
}
}
// === Auto-generated preamble library stuff ===
//========================================
// Runtime code shared with compiler
//========================================
var Runtime = {
stackSave: function () {
return STACKTOP;
},
stackRestore: function (stackTop) {
STACKTOP = stackTop;
},
forceAlign: function (target, quantum) {
quantum = quantum || 4;
if (quantum == 1) return target;
if (isNumber(target) && isNumber(quantum)) {
return Math.ceil(target/quantum)*quantum;
} else if (isNumber(quantum) && isPowerOfTwo(quantum)) {
var logg = log2(quantum);
return '((((' +target + ')+' + (quantum-1) + ')>>' + logg + ')<<' + logg + ')';
}
return 'Math.ceil((' + target + ')/' + quantum + ')*' + quantum;
},
isNumberType: function (type) {
return type in Runtime.INT_TYPES || type in Runtime.FLOAT_TYPES;
},
isPointerType: function isPointerType(type) {
return type[type.length-1] == '*';
},
isStructType: function isStructType(type) {
if (isPointerType(type)) return false;
if (isArrayType(type)) return true;
if (/<?{ ?[^}]* ?}>?/.test(type)) return true; // { i32, i8 } etc. - anonymous struct types
// See comment in isStructPointerType()
return type[0] == '%';
},
INT_TYPES: {"i1":0,"i8":0,"i16":0,"i32":0,"i64":0},
FLOAT_TYPES: {"float":0,"double":0},
or64: function (x, y) {
var l = (x | 0) | (y | 0);
var h = (Math.round(x / 4294967296) | Math.round(y / 4294967296)) * 4294967296;
return l + h;
},
and64: function (x, y) {
var l = (x | 0) & (y | 0);
var h = (Math.round(x / 4294967296) & Math.round(y / 4294967296)) * 4294967296;
return l + h;
},
xor64: function (x, y) {
var l = (x | 0) ^ (y | 0);
var h = (Math.round(x / 4294967296) ^ Math.round(y / 4294967296)) * 4294967296;
return l + h;
},
getNativeTypeSize: function (type, quantumSize) {
if (Runtime.QUANTUM_SIZE == 1) return 1;
var size = {
'%i1': 1,
'%i8': 1,
'%i16': 2,
'%i32': 4,
'%i64': 8,
"%float": 4,
"%double": 8
}['%'+type]; // add '%' since float and double confuse Closure compiler as keys, and also spidermonkey as a compiler will remove 's from '_i8' etc
if (!size) {
if (type.charAt(type.length-1) == '*') {
size = Runtime.QUANTUM_SIZE; // A pointer
} else if (type[0] == 'i') {
var bits = parseInt(type.substr(1));
assert(bits % 8 == 0);
size = bits/8;
}
}
return size;
},
getNativeFieldSize: function (type) {
return Math.max(Runtime.getNativeTypeSize(type), Runtime.QUANTUM_SIZE);
},
dedup: function dedup(items, ident) {
var seen = {};
if (ident) {
return items.filter(function(item) {
if (seen[item[ident]]) return false;
seen[item[ident]] = true;
return true;
});
} else {
return items.filter(function(item) {
if (seen[item]) return false;
seen[item] = true;
return true;
});
}
},
set: function set() {
var args = typeof arguments[0] === 'object' ? arguments[0] : arguments;
var ret = {};
for (var i = 0; i < args.length; i++) {
ret[args[i]] = 0;
}
return ret;
},
STACK_ALIGN: 8,
getAlignSize: function (type, size, vararg) {
// we align i64s and doubles on 64-bit boundaries, unlike x86
if (type == 'i64' || type == 'double' || vararg) 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);
},
calculateStructAlignment: function calculateStructAlignment(type) {
type.flatSize = 0;
type.alignSize = 0;
var diffs = [];
var prev = -1;
var index = 0;
type.flatIndexes = type.fields.map(function(field) {
index++;
var size, alignSize;
if (Runtime.isNumberType(field) || Runtime.isPointerType(field)) {
size = Runtime.getNativeTypeSize(field); // pack char; char; in structs, also char[X]s.
alignSize = Runtime.getAlignSize(field, size);
} else if (Runtime.isStructType(field)) {
if (field[1] === '0') {
// this is [0 x something]. When inside another structure like here, it must be at the end,
// and it adds no size
// XXX this happens in java-nbody for example... assert(index === type.fields.length, 'zero-length in the middle!');
size = 0;
alignSize = type.alignSize || QUANTUM_SIZE;
} else {
size = Types.types[field].flatSize;
alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize);
}
} else if (field[0] == 'b') {
// bN, large number field, like a [N x i8]
size = field.substr(1)|0;
alignSize = 1;
} else {
throw 'Unclear type in struct: ' + field + ', in ' + type.name_ + ' :: ' + dump(Types.types[type.name_]);
}
if (type.packed) alignSize = 1;
type.alignSize = Math.max(type.alignSize, alignSize);
var curr = Runtime.alignMemory(type.flatSize, alignSize); // if necessary, place this on aligned memory
type.flatSize = curr + size;
if (prev >= 0) {
diffs.push(curr-prev);
}
prev = curr;
return curr;
});
type.flatSize = Runtime.alignMemory(type.flatSize, type.alignSize);
if (diffs.length == 0) {
type.flatFactor = type.flatSize;
} else if (Runtime.dedup(diffs).length == 1) {
type.flatFactor = diffs[0];
}
type.needsFlattening = (type.flatFactor != 1);
return type.flatIndexes;
},
generateStructInfo: function (struct, typeName, offset) {
var type, alignment;
if (typeName) {
offset = offset || 0;
type = (typeof Types === 'undefined' ? Runtime.typeInfo : Types.types)[typeName];
if (!type) return null;
if (type.fields.length != struct.length) {
printErr('Number of named fields must match the type for ' + typeName + ': possibly duplicate struct names. Cannot return structInfo');
return null;
}
alignment = type.flatIndexes;
} else {
var type = { fields: struct.map(function(item) { return item[0] }) };
alignment = Runtime.calculateStructAlignment(type);
}
var ret = {
__size__: type.flatSize
};
if (typeName) {
struct.forEach(function(item, i) {
if (typeof item === 'string') {
ret[item] = alignment[i] + offset;
} else {
// embedded struct
var key;
for (var k in item) key = k;
ret[key] = Runtime.generateStructInfo(item[key], type.fields[i], alignment[i]);
}
});
} else {
struct.forEach(function(item, i) {
ret[item[1]] = alignment[i];
});
}
return ret;
},
dynCall: function (sig, ptr, args) {
if (args && args.length) {
assert(args.length == sig.length-1);
return FUNCTION_TABLE[ptr].apply(null, args);
} else {
assert(sig.length == 1);
return FUNCTION_TABLE[ptr]();
}
},
addFunction: function (func) {
var table = FUNCTION_TABLE;
var ret = table.length;
table.push(func);
table.push(0);
return ret;
},
removeFunction: function (index) {
var table = FUNCTION_TABLE;
table[index] = 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[func]) {
Runtime.funcWrappers[func] = function() {
return Runtime.dynCall(sig, func, arguments);
};
}
return Runtime.funcWrappers[func];
},
UTF8Processor: function () {
var buffer = [];
var needed = 0;
this.processCChar = function (code) {
code = code & 0xFF;
if (buffer.length == 0) {
if ((code & 0x80) == 0x00) { // 0xxxxxxx
return String.fromCharCode(code);
}
buffer.push(code);
if ((code & 0xE0) == 0xC0) { // 110xxxxx
needed = 1;
} else if ((code & 0xF0) == 0xE0) { // 1110xxxx
needed = 2;
} else { // 11110xxx
needed = 3;
}
return '';
}
if (needed) {
buffer.push(code);
needed--;
if (needed > 0) return '';
}
var c1 = buffer[0];
var c2 = buffer[1];
var c3 = buffer[2];
var c4 = buffer[3];
var ret;
if (buffer.length == 2) {
ret = String.fromCharCode(((c1 & 0x1F) << 6) | (c2 & 0x3F));
} else if (buffer.length == 3) {
ret = String.fromCharCode(((c1 & 0x0F) << 12) | ((c2 & 0x3F) << 6) | (c3 & 0x3F));
} else {
// http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
var codePoint = ((c1 & 0x07) << 18) | ((c2 & 0x3F) << 12) |
((c3 & 0x3F) << 6) | (c4 & 0x3F);
ret = String.fromCharCode(
Math.floor((codePoint - 0x10000) / 0x400) + 0xD800,
(codePoint - 0x10000) % 0x400 + 0xDC00);
}
buffer.length = 0;
return ret;
}
this.processJSString = function(string) {
string = unescape(encodeURIComponent(string));
var ret = [];
for (var i = 0; i < string.length; i++) {
ret.push(string.charCodeAt(i));
}
return ret;
}
},
stackAlloc: function (size) { var ret = STACKTOP;STACKTOP = (STACKTOP + size)|0;STACKTOP = ((((STACKTOP)+7)>>3)<<3);(assert((STACKTOP|0) < (STACK_MAX|0))|0); return ret; },
staticAlloc: function (size) { var ret = STATICTOP;STATICTOP = (STATICTOP + (assert(!staticSealed),size))|0;STATICTOP = ((((STATICTOP)+7)>>3)<<3); return ret; },
dynamicAlloc: function (size) { var ret = DYNAMICTOP;DYNAMICTOP = (DYNAMICTOP + (assert(DYNAMICTOP > 0),size))|0;DYNAMICTOP = ((((DYNAMICTOP)+7)>>3)<<3); if (DYNAMICTOP >= TOTAL_MEMORY) enlargeMemory();; return ret; },
alignMemory: function (size,quantum) { var ret = size = Math.ceil((size)/(quantum ? quantum : 8))*(quantum ? quantum : 8); return ret; },
makeBigInt: function (low,high,unsigned) { var ret = (unsigned ? (((low)>>>(0))+(((high)>>>(0))*4294967296)) : (((low)>>>(0))+(((high)|(0))*4294967296))); return ret; },
GLOBAL_BASE: 8,
QUANTUM_SIZE: 4,
__dummy__: 0
}
//========================================
// Runtime essentials
//========================================
var __THREW__ = 0; // Used in checking for thrown exceptions.
var setjmpId = 1; // Used in setjmp/longjmp
var setjmpLabels = {};
var ABORT = false; // whether we are quitting the application. no code should run after this. set in exit() and abort()
var EXITSTATUS = 0;
var undef = 0;
// tempInt is used for 32-bit signed values or smaller. tempBigInt is used
// for 32-bit unsigned values or more than 32 bits. TODO: audit all uses of tempInt
var tempValue, tempInt, tempBigInt, tempInt2, tempBigInt2, tempPair, tempBigIntI, tempBigIntR, tempBigIntS, tempBigIntP, tempBigIntD;
var tempI64, tempI64b;
var tempRet0, tempRet1, tempRet2, tempRet3, tempRet4, tempRet5, tempRet6, tempRet7, tempRet8, tempRet9;
function assert(condition, text) {
if (!condition) {
abort('Assertion failed: ' + text);
}
}
var globalScope = this;
// C calling interface. A convenient way to call C functions (in C files, or
// defined with extern "C").
//
// Note: LLVM optimizations can inline and remove functions, after which you will not be
// able to call them. Closure can also do so. To avoid that, add your function to
// the exports using something like
//
// -s EXPORTED_FUNCTIONS='["_main", "_myfunc"]'
//
// @param ident The name of the C function (note that C++ functions will be name-mangled - use extern "C")
// @param returnType The return type of the function, one of the JS types 'number', 'string' or 'array' (use 'number' for any C pointer, and
// 'array' for JavaScript arrays and typed arrays; note that arrays are 8-bit).
// @param argTypes An array of the types of arguments for the function (if there are no arguments, this can be ommitted). Types are as in returnType,
// except that 'array' is not possible (there is no way for us to know the length of the array)
// @param args An array of the arguments to the function, as native JS values (as in returnType)
// Note that string arguments will be stored on the stack (the JS string will become a C string on the stack).
// @return The return value, as a native JS value (as in returnType)
function ccall(ident, returnType, argTypes, args) {
return ccallFunc(getCFunc(ident), returnType, argTypes, args);
}
Module["ccall"] = ccall;
// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
function getCFunc(ident) {
try {
var func = Module['_' + ident]; // closure exported function
if (!func) func = eval('_' + ident); // explicit lookup
} catch(e) {
}
assert(func, 'Cannot call unknown function ' + ident + ' (perhaps LLVM optimizations or closure removed it?)');
return func;
}
// Internal function that does a C call using a function, not an identifier
function ccallFunc(func, returnType, argTypes, args) {
var stack = 0;
function toC(value, type) {
if (type == 'string') {
if (value === null || value === undefined || value === 0) return 0; // null string
if (!stack) stack = Runtime.stackSave();
var ret = Runtime.stackAlloc(value.length+1);
writeStringToMemory(value, ret);
return ret;
} else if (type == 'array') {
if (!stack) stack = Runtime.stackSave();
var ret = Runtime.stackAlloc(value.length);
writeArrayToMemory(value, ret);
return ret;
}
return value;
}
function fromC(value, type) {
if (type == 'string') {
return Pointer_stringify(value);
}
assert(type != 'array');
return value;
}
var i = 0;
var cArgs = args ? args.map(function(arg) {
return toC(arg, argTypes[i++]);
}) : [];
var ret = fromC(func.apply(null, cArgs), returnType);
if (stack) Runtime.stackRestore(stack);
return ret;
}
// Returns a native JS wrapper for a C function. This is similar to ccall, but
// returns a function you can call repeatedly in a normal way. For example:
//
// var my_function = cwrap('my_c_function', 'number', ['number', 'number']);
// alert(my_function(5, 22));
// alert(my_function(99, 12));
//
function cwrap(ident, returnType, argTypes) {
var func = getCFunc(ident);
return function() {
return ccallFunc(func, returnType, argTypes, Array.prototype.slice.call(arguments));
}
}
Module["cwrap"] = cwrap;
// Sets a value in memory in a dynamic way at run-time. Uses the
// type data. This is the same as makeSetValue, except that
// makeSetValue is done at compile-time and generates the needed
// code then, whereas this function picks the right code at
// run-time.
// Note that setValue and getValue only do *aligned* writes and reads!
// Note that ccall uses JS types as for defining types, while setValue and
// getValue need LLVM types ('i8', 'i32') - this is a lower-level operation
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)]=value; break;
case 'i8': HEAP8[(ptr)]=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 ? (tempDouble > 0 ? Math.min(Math.floor((tempDouble)/4294967296), 4294967295)>>>0 : (~~(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296)))>>>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;
// Parallel to 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)];
case 'i8': return HEAP8[(ptr)];
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 = [_malloc, 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;
function Pointer_stringify(ptr, /* optional */ length) {
// TODO: use TextDecoder
// Find the length, and check for UTF while doing so
var hasUtf = false;
var t;
var i = 0;
while (1) {
assert(ptr + i < TOTAL_MEMORY);
t = HEAPU8[(((ptr)+(i))|0)];
if (t >= 128) hasUtf = true;
else if (t == 0 && !length) break;
i++;
if (length && i == length) break;
}
if (!length) length = i;
var ret = '';
if (!hasUtf) {
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;
}
var utf8 = new Runtime.UTF8Processor();
for (i = 0; i < length; i++) {
assert(ptr + i < TOTAL_MEMORY);
t = HEAPU8[(((ptr)+(i))|0)];
ret += utf8.processCChar(t);
}
return ret;
}
Module['Pointer_stringify'] = Pointer_stringify;
// Memory management
var PAGE_SIZE = 4096;
function alignMemoryPage(x) {
return ((x+4095)>>12)<<12;
}
var HEAP;
var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
var STATIC_BASE = 0, STATICTOP = 0, staticSealed = false; // static area
var STACK_BASE = 0, STACKTOP = 0, STACK_MAX = 0; // stack area
var DYNAMIC_BASE = 0, DYNAMICTOP = 0; // dynamic area handled by sbrk
function enlargeMemory() {
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 ALLOW_MEMORY_GROWTH which adjusts the size at runtime but prevents some optimizations, or (3) set Module.TOTAL_MEMORY before the program runs.');
}
var TOTAL_STACK = Module['TOTAL_STACK'] || 5242880;
var TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 16777216;
var FAST_MEMORY = Module['FAST_MEMORY'] || 2097152;
// Initialize the runtime's memory
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
assert(!!Int32Array && !!Float64Array && !!(new Int32Array(1)['subarray']) && !!(new Int32Array(1)['set']),
'Cannot fallback to non-typed array case: Code is too specialized');
var buffer = new ArrayBuffer(TOTAL_MEMORY);
HEAP8 = new Int8Array(buffer);
HEAP16 = new Int16Array(buffer);
HEAP32 = new Int32Array(buffer);
HEAPU8 = new Uint8Array(buffer);
HEAPU16 = new Uint16Array(buffer);
HEAPU32 = new Uint32Array(buffer);
HEAPF32 = new Float32Array(buffer);
HEAPF64 = new Float64Array(buffer);
// Endianness check (note: assumes compiler arch was little-endian)
HEAP32[0] = 255;
assert(HEAPU8[0] === 255 && HEAPU8[3] === 0, 'Typed arrays 2 must be run on a little-endian system');
Module['HEAP'] = HEAP;
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;
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() {
if (runtimeInitialized) return;
runtimeInitialized = true;
callRuntimeCallbacks(__ATINIT__);
}
function preMain() {
callRuntimeCallbacks(__ATMAIN__);
}
function exitRuntime() {
callRuntimeCallbacks(__ATEXIT__);
}
function postRun() {
// 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'] = Module.addOnPreRun = addOnPreRun;
function addOnInit(cb) {
__ATINIT__.unshift(cb);
}
Module['addOnInit'] = Module.addOnInit = addOnInit;
function addOnPreMain(cb) {
__ATMAIN__.unshift(cb);
}
Module['addOnPreMain'] = Module.addOnPreMain = addOnPreMain;
function addOnExit(cb) {
__ATEXIT__.unshift(cb);
}
Module['addOnExit'] = Module.addOnExit = addOnExit;
function addOnPostRun(cb) {
__ATPOSTRUN__.unshift(cb);
}
Module['addOnPostRun'] = Module.addOnPostRun = addOnPostRun;
// Tools
// This processes a JS string into a C-line array of numbers, 0-terminated.
// For LLVM-originating strings, see parser.js:parseLLVMString function
function intArrayFromString(stringy, dontAddNull, length /* optional */) {
var ret = (new Runtime.UTF8Processor()).processJSString(stringy);
if (length) {
ret.length = length;
}
if (!dontAddNull) {
ret.push(0);
}
return ret;
}
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;
// Write a Javascript array to somewhere in the heap
function writeStringToMemory(string, buffer, dontAddNull) {
var array = intArrayFromString(string, dontAddNull);
var i = 0;
while (i < array.length) {
var chr = array[i];
HEAP8[(((buffer)+(i))|0)]=chr
i = i + 1;
}
}
Module['writeStringToMemory'] = writeStringToMemory;
function writeArrayToMemory(array, buffer) {
for (var i = 0; i < array.length; i++) {
HEAP8[(((buffer)+(i))|0)]=array[i];
}
}
Module['writeArrayToMemory'] = writeArrayToMemory;
function unSign(value, bits, ignore, sig) {
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, sig) {
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;
}
if (!Math['imul']) Math['imul'] = function(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'];
// 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 runDependencyTracking = {};
var calledInit = false, calledRun = false;
var runDependencyWatcher = null;
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() {
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 run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
if (!calledRun && shouldRunNow) run();
}
}
Module['removeRunDependency'] = removeRunDependency;
Module["preloadedImages"] = {}; // maps url to image data
Module["preloadedAudios"] = {}; // maps url to audio data
function loadMemoryInitializer(filename) {
function applyData(data) {
HEAPU8.set(data, STATIC_BASE);
}
// always do this asynchronously, to keep shell and web as similar as possible
addOnPreRun(function() {
if (ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL) {
applyData(Module['readBinary'](filename));
} else {
Browser.asyncLoad(filename, function(data) {
applyData(data);
}, function(data) {
throw 'could not load memory initializer ' + filename;
});
}
});
}
// === Body ===
STATIC_BASE = 8;
STATICTOP = STATIC_BASE + 16;
/* global initializers */ __ATINIT__.push({ func: function() { runPostSets() } });
/* memory initializer */ allocate([72,101,108,108,111,44,32,119,111,114,108,100,33,10,0,0], "i8", ALLOC_NONE, Runtime.GLOBAL_BASE)
function runPostSets() {
}
var tempDoublePtr = Runtime.alignMemory(allocate(12, "i8", ALLOC_STATIC), 8);
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];
}
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:35,EIDRM:36,ECHRNG:37,EL2NSYNC:38,EL3HLT:39,EL3RST:40,ELNRNG:41,EUNATCH:42,ENOCSI:43,EL2HLT:44,EDEADLK:45,ENOLCK:46,EBADE:50,EBADR:51,EXFULL:52,ENOANO:53,EBADRQC:54,EBADSLT:55,EDEADLOCK:56,EBFONT:57,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:74,EDOTDOT:76,EBADMSG:77,ENOTUNIQ:80,EBADFD:81,EREMCHG:82,ELIBACC:83,ELIBBAD:84,ELIBSCN:85,ELIBMAX:86,ELIBEXEC:87,ENOSYS:88,ENOTEMPTY:90,ENAMETOOLONG:91,ELOOP:92,EOPNOTSUPP:95,EPFNOSUPPORT:96,ECONNRESET:104,ENOBUFS:105,EAFNOSUPPORT:106,EPROTOTYPE:107,ENOTSOCK:108,ENOPROTOOPT:109,ESHUTDOWN:110,ECONNREFUSED:111,EADDRINUSE:112,ECONNABORTED:113,ENETUNREACH:114,ENETDOWN:115,ETIMEDOUT:116,EHOSTDOWN:117,EHOSTUNREACH:118,EINPROGRESS:119,EALREADY:120,EDESTADDRREQ:121,EMSGSIZE:122,EPROTONOSUPPORT:123,ESOCKTNOSUPPORT:124,EADDRNOTAVAIL:125,ENETRESET:126,EISCONN:127,ENOTCONN:128,ETOOMANYREFS:129,EUSERS:131,EDQUOT:132,ESTALE:133,ENOTSUP:134,ENOMEDIUM:135,EILSEQ:138,EOVERFLOW:139,ECANCELED:140,ENOTRECOVERABLE:141,EOWNERDEAD:142,ESTRPIPE:143};
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:"No message of desired type",36:"Identifier removed",37:"Channel number out of range",38:"Level 2 not synchronized",39:"Level 3 halted",40:"Level 3 reset",41:"Link number out of range",42:"Protocol driver not attached",43:"No CSI structure available",44:"Level 2 halted",45:"Deadlock condition",46:"No record locks available",50:"Invalid exchange",51:"Invalid request descriptor",52:"Exchange full",53:"No anode",54:"Invalid request code",55:"Invalid slot",56:"File locking deadlock error",57:"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",74:"Multihop attempted",76:"Cross mount point (not really error)",77:"Trying to read unreadable message",80:"Given log. name not unique",81:"f.d. invalid for this operation",82:"Remote address changed",83:"Can access a needed shared lib",84:"Accessing a corrupted shared lib",85:".lib section in a.out corrupted",86:"Attempting to link in too many libs",87:"Attempting to exec a shared library",88:"Function not implemented",90:"Directory not empty",91:"File or path name too long",92:"Too many symbolic links",95:"Operation not supported on transport endpoint",96:"Protocol family not supported",104:"Connection reset by peer",105:"No buffer space available",106:"Address family not supported by protocol family",107:"Protocol wrong type for socket",108:"Socket operation on non-socket",109:"Protocol not available",110:"Can't send after socket shutdown",111:"Connection refused",112:"Address already in use",113:"Connection aborted",114:"Network is unreachable",115:"Network interface is not configured",116:"Connection timed out",117:"Host is down",118:"Host is unreachable",119:"Connection already in progress",120:"Socket already connected",121:"Destination address required",122:"Message too long",123:"Unknown protocol",124:"Socket type not supported",125:"Address not available",126:"Connection reset by network",127:"Socket is already connected",128:"Socket is not connected",129:"Too many references",131:"Too many users",132:"Quota exceeded",133:"Stale file handle",134:"Not supported",135:"No medium (in tape drive)",138:"Illegal byte sequence",139:"Value too large for defined data type",140:"Operation canceled",141:"State not recoverable",142:"Previous owner died",143:"Streams pipe error"};
var ___errno_state=0;function ___setErrNo(value) {
// For convenient setting and returning of errno.
HEAP32[((___errno_state)>>2)]=value
return value;
}
var VFS=undefined;
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, ext) {
// EMSCRIPTEN return '/'' for '/', not an empty string
if (path === '/') return '/';
var f = PATH.splitPath(path)[2];
if (ext && f.substr(-1 * ext.length) === ext) {
f = f.substr(0, f.length - ext.length);
}
return f;
},extname:function (path) {
return PATH.splitPath(path)[3];
},join:function () {
var paths = Array.prototype.slice.call(arguments, 0);
return PATH.normalize(paths.filter(function(p, index) {
if (typeof p !== 'string') {
throw new TypeError('Arguments to path.join must be strings');
}
return p;
}).join('/'));
},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) {
continue;
}
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
if (stream.tty.output.length) {
stream.tty.ops.put_char(stream.tty, 10);
}
},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) {
result = process['stdin']['read']();
if (!result) {
if (process['stdin']['_readableState'] && process['stdin']['_readableState']['ended']) {
return null; // EOF
}
return undefined; // no data available
}
} 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'](tty.output.join(''));
tty.output = [];
} else {
tty.output.push(TTY.utf8.processCChar(val));
}
}},default_tty1_ops:{put_char:function (tty, val) {
if (val === null || val === 10) {
Module['printErr'](tty.output.join(''));
tty.output = [];
} else {
tty.output.push(TTY.utf8.processCChar(val));
}
}}};
var MEMFS={CONTENT_OWNING:1,CONTENT_FLEXIBLE:2,CONTENT_FIXED:3,ensureFlexible:function (node) {
if (node.contentMode !== MEMFS.CONTENT_FLEXIBLE) {
var contents = node.contents;
node.contents = Array.prototype.slice.call(contents);
node.contentMode = MEMFS.CONTENT_FLEXIBLE;
}
},mount:function (mount) {
return MEMFS.create_node(null, '/', 0040000 | 0777, 0);
},create_node:function (parent, name, mode, dev) {
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
// no supported
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
}
var node = FS.createNode(parent, name, mode, dev);
if (FS.isDir(node.mode)) {
node.node_ops = {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
lookup: MEMFS.node_ops.lookup,
mknod: MEMFS.node_ops.mknod,
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
};
node.stream_ops = {
llseek: MEMFS.stream_ops.llseek
};
node.contents = {};
} else if (FS.isFile(node.mode)) {
node.node_ops = {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
};
node.stream_ops = {
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
};
node.contents = [];
node.contentMode = MEMFS.CONTENT_FLEXIBLE;
} else if (FS.isLink(node.mode)) {
node.node_ops = {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
readlink: MEMFS.node_ops.readlink
};
node.stream_ops = {};
} else if (FS.isChrdev(node.mode)) {
node.node_ops = {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
};
node.stream_ops = FS.chrdev_stream_ops;
}
node.timestamp = Date.now();
// add the new node to the parent
if (parent) {
parent.contents[name] = node;
}
return node;
},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.contents.length;
} 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.ensureFlexible(node);
var contents = node.contents;
if (attr.size < contents.length) contents.length = attr.size;
else while (attr.size > contents.length) contents.push(0);
}
},lookup:function (parent, name) {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
},mknod:function (parent, name, mode, dev) {
return MEMFS.create_node(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;
},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.create_node(parent, newname, 0777 | 0120000, 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;
var size = Math.min(contents.length - position, length);
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) {
var node = stream.node;
node.timestamp = Date.now();
var contents = node.contents;
if (length && contents.length === 0 && position === 0 && buffer.subarray) {
// just replace it with the new data
assert(buffer.length);
if (canOwn && buffer.buffer === HEAP8.buffer && offset === 0) {
node.contents = buffer; // this is a subarray of the heap, and we can own it
node.contentMode = MEMFS.CONTENT_OWNING;
} else {
node.contents = new Uint8Array(buffer.subarray(offset, offset+length));
node.contentMode = MEMFS.CONTENT_FIXED;
}
return length;
}
MEMFS.ensureFlexible(node);
var contents = node.contents;
while (contents.length < position) contents.push(0);
for (var i = 0; i < length; i++) {
contents[position + i] = buffer[offset + i];
}
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.contents.length;
}
}
if (position < 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
stream.ungotten = [];
stream.position = position;
return position;
},allocate:function (stream, offset, length) {
MEMFS.ensureFlexible(stream.node);
var contents = stream.node.contents;
var limit = offset + length;
while (limit > contents.length) contents.push(0);
},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 & 0x02) &&
(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 < contents.length) {
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 };
}}};
var _stdin=allocate(1, "i32*", ALLOC_STATIC);
var _stdout=allocate(1, "i32*", ALLOC_STATIC);
var _stderr=allocate(1, "i32*", ALLOC_STATIC);
function _fflush(stream) {
// int fflush(FILE *stream);
// http://pubs.opengroup.org/onlinepubs/000095399/functions/fflush.html
// we don't currently perform any user-space buffering of data
}var FS={root:null,devices:[null],streams:[null],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:function ErrnoError(errno) {
this.errno = errno;
for (var key in ERRNO_CODES) {
if (ERRNO_CODES[key] === errno) {
this.code = key;
break;
}
}
this.message = ERRNO_MESSAGES[errno];
},handleFSError:function (e) {
if (!(e instanceof FS.ErrnoError)) throw e + ' : ' + new Error().stack;
return ___setErrNo(e.errno);
},cwd:function () {
return FS.currentPath;
},lookupPath:function (path, opts) {
path = PATH.resolve(FS.currentPath, path);
opts = opts || { recurse_count: 0 };
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.join(current_path, parts[i]);
// jump to the mount's root node if this is a mountpoint
if (FS.isMountpoint(current)) {
current = current.mount.root;
}
// follow symlinks
// 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)) {
return path ? PATH.join(node.mount.mountpoint, path) : node.mount.mountpoint;
}
path = path ? PATH.join(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);
}
var hash = FS.hashName(parent.id, name);
for (var node = FS.nameTable[hash]; node; node = node.name_next) {
if (node.parent.id === parent.id && node.name === 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) {
var node = {
id: FS.nextInode++,
name: name,
mode: mode,
node_ops: {},
stream_ops: {},
rdev: rdev,
parent: null,
mount: null
};
if (!parent) {
parent = node; // root node sets parent to itself
}
node.parent = parent;
node.mount = parent.mount;
// 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(node, {
read: {
get: function() { return (node.mode & readMode) === readMode; },
set: function(val) { val ? node.mode |= readMode : node.mode &= ~readMode; }
},
write: {
get: function() { return (node.mode & writeMode) === writeMode; },
set: function(val) { val ? node.mode |= writeMode : node.mode &= ~writeMode; }
},
isFolder: {
get: function() { return FS.isDir(node.mode); },
},
isDevice: {
get: function() { return FS.isChrdev(node.mode); },
},
});
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 & 0170000) === 0100000;
},isDir:function (mode) {
return (mode & 0170000) === 0040000;
},isLink:function (mode) {
return (mode & 0170000) === 0120000;
},isChrdev:function (mode) {
return (mode & 0170000) === 0020000;
},isBlkdev:function (mode) {
return (mode & 0170000) === 0060000;
},isFIFO:function (mode) {
return (mode & 0170000) === 0010000;
},isSocket:function (mode) {
return (mode & 0140000) === 0140000;
},flagModes:{"r":0,"rs":8192,"r+":2,"w":1537,"wx":3585,"xw":3585,"w+":1538,"wx+":3586,"xw+":3586,"a":521,"ax":2569,"xa":2569,"a+":522,"ax+":2570,"xa+":2570},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 accmode = flag & 3;
var perms = ['r', 'w', 'rw'][accmode];
if ((flag & 1024)) {
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) {
return FS.nodePermissions(dir, 'x');
},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.currentPath) {
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 ((flags & 3) !== 0 || // opening for write
(flags & 1024)) {
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 || 1;
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) {
var fd = FS.nextfd(fd_start, fd_end);
stream.fd = fd;
// compatibility
Object.defineProperties(stream, {
object: {
get: function() { return stream.node; },
set: function(val) { stream.node = val; }
},
isRead: {
get: function() { return (stream.flags & 3) !== 1; }
},
isWrite: {
get: function() { return (stream.flags & 3) !== 0; }
},
isAppend: {
get: function() { return (stream.flags & 8); }
}
});
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];
},mount:function (type, opts, mountpoint) {
var mount = {
type: type,
opts: opts,
mountpoint: mountpoint,
root: null
};
var lookup;
if (mountpoint) {
lookup = FS.lookupPath(mountpoint, { follow: false });
}
// create a root node for the fs
var root = type.mount(mount);
root.mount = mount;
mount.root = root;
// assign the mount info to the mountpoint's node
if (lookup) {
lookup.node.mount = mount;
lookup.node.mounted = true;
// compatibility update FS.root if we mount to /
if (mountpoint === '/') {
FS.root = mount.root;
}
}
return root;
},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);
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 : 0666;
mode &= 4095;
mode |= 0100000;
return FS.mknod(path, mode, 0);
},mkdir:function (path, mode) {
mode = mode !== undefined ? mode : 0777;
mode &= 511 | 0001000;
mode |= 0040000;
return FS.mknod(path, mode, 0);
},mkdev:function (path, mode, dev) {
if (typeof(dev) === 'undefined') {
dev = mode;
mode = 0666;
}
mode |= 0020000;
return FS.mknod(path, mode, dev);
},symlink:function (oldpath, newpath) {
var lookup = FS.lookupPath(newpath, { parent: true });
var parent = lookup.node;
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);
}
// 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);
}
}
// 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);
}
},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);
}
parent.node_ops.rmdir(parent, name);
FS.destroyNode(node);
},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) {
// POSIX says unlink should set EPERM, not EISDIR
if (err === ERRNO_CODES.EISDIR) err = ERRNO_CODES.EPERM;
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);
}
parent.node_ops.unlink(parent, name);
FS.destroyNode(node);
},readlink:function (path) {
var lookup = FS.lookupPath(path, { follow: false });
var link = lookup.node;
if (!link.node_ops.readlink) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
return link.node_ops.readlink(link);
},stat:function (path, dontFollow) {
var lookup = FS.lookupPath(path, { follow: !dontFollow });
var node = lookup.node;
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 & 3) === 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) {
path = PATH.normalize(path);
flags = typeof flags === 'string' ? FS.modeStringToFlags(flags) : flags;
mode = typeof mode === 'undefined' ? 0666 : mode;
if ((flags & 512)) {
mode = (mode & 4095) | 0100000;
} else {
mode = 0;
}
var node;
try {
var lookup = FS.lookupPath(path, {
follow: !(flags & 0200000)
});
node = lookup.node;
path = lookup.path;
} catch (e) {
// ignore
}
// perhaps we need to create the node
if ((flags & 512)) {
if (node) {
// if O_CREAT and O_EXCL are set, error out if the node already exists
if ((flags & 2048)) {
throw new FS.ErrnoError(ERRNO_CODES.EEXIST);
}
} else {
// node doesn't exist, try to create it
node = FS.mknod(path, mode, 0);
}
}
if (!node) {
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
}
// can't truncate a device
if (FS.isChrdev(node.mode)) {
flags &= ~1024;
}
// check permissions
var err = FS.mayOpen(node, flags);
if (err) {
throw new FS.ErrnoError(err);
}
// do truncation if necessary
if ((flags & 1024)) {
FS.truncate(node, 0);
}
// register the stream with the filesystem
var stream = FS.createStream({
path: path,
node: 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);
}
return stream;
},close:function (stream) {
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);
}
return stream.stream_ops.llseek(stream, offset, whence);
},read:function (stream, buffer, offset, length, position) {
if (length < 0 || position < 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
if ((stream.flags & 3) === 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 & 3) === 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);
}
var seeking = true;
if (typeof position === 'undefined') {
position = stream.position;
seeking = false;
} else if (!stream.seekable) {
throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
}
if (stream.flags & 8) {
// seek to the end before writing in append mode
FS.llseek(stream, 0, 2);
}
var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
if (!seeking) stream.position += bytesWritten;
return bytesWritten;
},allocate:function (stream, offset, length) {
if (offset < 0 || length <= 0) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
if ((stream.flags & 3) === 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 & 3) === 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);
},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';
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 = '';
var utf8 = new Runtime.UTF8Processor();
for (var i = 0; i < length; i++) {
ret += utf8.processCChar(buf[i]);
}
} else if (opts.encoding === 'binary') {
ret = buf;
} else {
throw new Error('Invalid encoding type "' + opts.encoding + '"');
}
FS.close(stream);
return ret;
},writeFile:function (path, data, opts) {
opts = opts || {};
opts.flags = opts.flags || 'w';
opts.encoding = opts.encoding || 'utf8';
var stream = FS.open(path, opts.flags, opts.mode);
if (opts.encoding === 'utf8') {
var utf8 = new Runtime.UTF8Processor();
var buf = new Uint8Array(utf8.processJSString(data));
FS.write(stream, buf, 0, buf.length, 0);
} else if (opts.encoding === 'binary') {
FS.write(stream, data, 0, data.length, 0);
} else {
throw new Error('Invalid encoding type "' + opts.encoding + '"');
}
FS.close(stream);
},createDefaultDirectories:function () {
FS.mkdir('/tmp');
},createDefaultDevices:function () {
// create /dev
FS.mkdir('/dev');
// setup /dev/null
FS.registerDevice(FS.makedev(1, 3), {
read: function() { return 0; },
write: function() { return 0; }
});
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));
// 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');
},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');
HEAP32[((_stdin)>>2)]=stdin.fd;
assert(stdin.fd === 1, 'invalid handle for stdin (' + stdin.fd + ')');
var stdout = FS.open('/dev/stdout', 'w');
HEAP32[((_stdout)>>2)]=stdout.fd;
assert(stdout.fd === 2, 'invalid handle for stdout (' + stdout.fd + ')');
var stderr = FS.open('/dev/stderr', 'w');
HEAP32[((_stderr)>>2)]=stderr.fd;
assert(stderr.fd === 3, 'invalid handle for stderr (' + stderr.fd + ')');
},staticInit:function () {
FS.nameTable = new Array(4096);
FS.root = FS.createNode(null, '/', 0040000 | 0777, 0);
FS.mount(MEMFS, {}, '/');
FS.createDefaultDirectories();
FS.createDefaultDevices();
},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;
// 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;
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.join(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.join(parent, part);
try {
FS.mkdir(current);
} catch (e) {
// ignore EEXIST
}
parent = current;
}
return current;
},createFile:function (parent, name, properties, canRead, canWrite) {
var path = PATH.join(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.join(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(path, mode | 146);
var stream = FS.open(path, 'w');
FS.write(stream, data, 0, data.length, 0, canOwn);
FS.close(stream);
FS.chmod(path, mode);
}
return node;
},createDevice:function (parent, name, input, output) {
var path = PATH.join(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.join(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);
} 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) {
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';
// Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse.
var LazyUint8Array = function() {
this.lengthKnown = false;
this.chunks = []; // Loaded chunks. Index is the chunk number
}
LazyUint8Array.prototype.get = function(idx) {
if (idx > this.length-1 || idx < 0) {
return undefined;
}
var chunkOffset = idx % this.chunkSize;
var chunkNum = Math.floor(idx / this.chunkSize);
return this.getter(chunkNum)[chunkOffset];
}
LazyUint8Array.prototype.setDataGetter = function(getter) {
this.getter = getter;
}
LazyUint8Array.prototype.cacheLength = function() {
// 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 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];
});
this._length = datalength;
this._chunkSize = chunkSize;
this.lengthKnown = true;
}
var lazyArray = new LazyUint8Array();
Object.defineProperty(lazyArray, "length", {
get: function() {
if(!this.lengthKnown) {
this.cacheLength();
}
return this._length;
}
});
Object.defineProperty(lazyArray, "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;
}
// 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() {
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, buffer, offset, length, position) {
if (!FS.forceLoadFile(node)) {
throw new FS.ErrnoError(ERRNO_CODES.EIO);
}
var contents = stream.node.contents;
var size = Math.min(contents.length - position, length);
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) {
Browser.init();
// 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.join(parent, name)) : parent;
function processData(byteArray) {
function finish(byteArray) {
if (!dontCreateFile) {
FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
}
if (onload) onload();
removeRunDependency('cp ' + fullname);
}
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('cp ' + fullname);
});
handled = true;
}
});
if (!handled) finish(byteArray);
}
addRunDependency('cp ' + fullname);
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() {
console.log('creating db');
var db = openRequest.result;
db.createObjectStore(FS.DB_STORE_NAME);
};
openRequest.onsuccess = function() {
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() { ok++; if (ok + fail == total) finish() };
putRequest.onerror = function() { 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() {
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() {
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() { fail++; if (ok + fail == total) finish() };
});
transaction.onerror = onerror;
};
openRequest.onerror = onerror;
}};
var SOCKFS={mount:function (mount) {
return FS.createNode(null, '/', 0040000 | 0777, 0);
},nextname:function () {
if (!SOCKFS.nextname.current) {
SOCKFS.nextname.current = 0;
}
return 'socket[' + (SOCKFS.nextname.current++) + ']';
},createSocket:function (family, type, protocol) {
var streaming = type == 1;
if (protocol) {
assert(streaming == (protocol == 6)); // if SOCK_STREAM, must be tcp
}
// create our internal socket structure
var sock = {
family: family,
type: type,
protocol: protocol,
server: null,
peers: {},
pending: [],
recv_queue: [],
sock_ops: SOCKFS.websocket_sock_ops
};
// create the filesystem node to store the socket structure
var name = SOCKFS.nextname();
var node = FS.createNode(SOCKFS.root, name, 0140000, 0);
node.sock = sock;
// and the wrapping stream that enables library functions such
// as read and write to indirectly interact with the socket
var stream = FS.createStream({
path: name,
node: node,
flags: FS.modeStringToFlags('r+'),
seekable: false,
stream_ops: SOCKFS.stream_ops
});
// map the new stream to the socket structure (sockets have a 1:1
// relationship with a stream)
sock.stream = stream;
return sock;
},getSocket:function (fd) {
var stream = FS.getStream(fd);
if (!stream || !FS.isSocket(stream.node.mode)) {
return null;
}
return stream.node.sock;
},stream_ops:{poll:function (stream) {
var sock = stream.node.sock;
return sock.sock_ops.poll(sock);
},ioctl:function (stream, request, varargs) {
var sock = stream.node.sock;
return sock.sock_ops.ioctl(sock, request, varargs);
},read:function (stream, buffer, offset, length, position /* ignored */) {
var sock = stream.node.sock;
var msg = sock.sock_ops.recvmsg(sock, length);
if (!msg) {
// socket is closed
return 0;
}
buffer.set(msg.buffer, offset);
return msg.buffer.length;
},write:function (stream, buffer, offset, length, position /* ignored */) {
var sock = stream.node.sock;
return sock.sock_ops.sendmsg(sock, buffer, offset, length);
},close:function (stream) {
var sock = stream.node.sock;
sock.sock_ops.close(sock);
}},websocket_sock_ops:{createPeer:function (sock, addr, port) {
var ws;
if (typeof addr === 'object') {
ws = addr;
addr = null;
port = null;
}
if (ws) {
// for sockets that've already connected (e.g. we're the server)
// we can inspect the _socket property for the address
if (ws._socket) {
addr = ws._socket.remoteAddress;
port = ws._socket.remotePort;
}
// if we're just now initializing a connection to the remote,
// inspect the url property
else {
var result = /ws[s]?:\/\/([^:]+):(\d+)/.exec(ws.url);
if (!result) {
throw new Error('WebSocket URL must be in the format ws(s)://address:port');
}
addr = result[1];
port = parseInt(result[2], 10);
}
} else {
// create the actual websocket object and connect
try {
var url = 'ws://' + addr + ':' + port;
// the node ws library API is slightly different than the browser's
var opts = ENVIRONMENT_IS_NODE ? {} : ['binary'];
ws = new WebSocket(url, opts);
ws.binaryType = 'arraybuffer';
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES.EHOSTUNREACH);
}
}
var peer = {
addr: addr,
port: port,
socket: ws,
dgram_send_queue: []
};
SOCKFS.websocket_sock_ops.addPeer(sock, peer);
SOCKFS.websocket_sock_ops.handlePeerEvents(sock, peer);
// if this is a bound dgram socket, send the port number first to allow
// us to override the ephemeral port reported to us by remotePort on the
// remote end.
if (sock.type === 2 && typeof sock.sport !== 'undefined') {
peer.dgram_send_queue.push(new Uint8Array([
255, 255, 255, 255,
'p'.charCodeAt(0), 'o'.charCodeAt(0), 'r'.charCodeAt(0), 't'.charCodeAt(0),
((sock.sport & 0xff00) >> 8) , (sock.sport & 0xff)
]));
}
return peer;
},getPeer:function (sock, addr, port) {
return sock.peers[addr + ':' + port];
},addPeer:function (sock, peer) {
sock.peers[peer.addr + ':' + peer.port] = peer;
},removePeer:function (sock, peer) {
delete sock.peers[peer.addr + ':' + peer.port];
},handlePeerEvents:function (sock, peer) {
var first = true;
var handleOpen = function () {
try {
var queued = peer.dgram_send_queue.shift();
while (queued) {
peer.socket.send(queued);
queued = peer.dgram_send_queue.shift();
}
} catch (e) {
// not much we can do here in the way of proper error handling as we've already
// lied and said this data was sent. shut it down.
peer.socket.close();
}
};
var handleMessage = function(data) {
assert(typeof data !== 'string' && data.byteLength !== undefined); // must receive an ArrayBuffer
data = new Uint8Array(data); // make a typed array view on the array buffer
// if this is the port message, override the peer's port with it
var wasfirst = first;
first = false;
if (wasfirst &&
data.length === 10 &&
data[0] === 255 && data[1] === 255 && data[2] === 255 && data[3] === 255 &&
data[4] === 'p'.charCodeAt(0) && data[5] === 'o'.charCodeAt(0) && data[6] === 'r'.charCodeAt(0) && data[7] === 't'.charCodeAt(0)) {
// update the peer's port and it's key in the peer map
var newport = ((data[8] << 8) | data[9]);
SOCKFS.websocket_sock_ops.removePeer(sock, peer);
peer.port = newport;
SOCKFS.websocket_sock_ops.addPeer(sock, peer);
return;
}
sock.recv_queue.push({ addr: peer.addr, port: peer.port, data: data });
};
if (ENVIRONMENT_IS_NODE) {
peer.socket.on('open', handleOpen);
peer.socket.on('message', function(data, flags) {
if (!flags.binary) {
return;
}
handleMessage((new Uint8Array(data)).buffer); // copy from node Buffer -> ArrayBuffer
});
peer.socket.on('error', function() {
// don't throw
});
} else {
peer.socket.onopen = handleOpen;
peer.socket.onmessage = function(event) {
handleMessage(event.data);
};
}
},poll:function (sock) {
if (sock.type === 1 && sock.server) {
// listen sockets should only say they're available for reading
// if there are pending clients.
return sock.pending.length ? (0 /* XXX missing C define POLLRDNORM */ | 1) : 0;
}
var mask = 0;
var dest = sock.type === 1 ? // we only care about the socket state for connection-based sockets
SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport) :
null;
if (sock.recv_queue.length ||
!dest || // connection-less sockets are always ready to read
(dest && dest.socket.readyState === dest.socket.CLOSING) ||
(dest && dest.socket.readyState === dest.socket.CLOSED)) { // let recv return 0 once closed
mask |= (0 /* XXX missing C define POLLRDNORM */ | 1);
}
if (!dest || // connection-less sockets are always ready to write
(dest && dest.socket.readyState === dest.socket.OPEN)) {
mask |= 2;
}
if ((dest && dest.socket.readyState === dest.socket.CLOSING) ||
(dest && dest.socket.readyState === dest.socket.CLOSED)) {
mask |= 16;
}
return mask;
},ioctl:function (sock, request, arg) {
switch (request) {
case 1:
var bytes = 0;
if (sock.recv_queue.length) {
bytes = sock.recv_queue[0].data.length;
}
HEAP32[((arg)>>2)]=bytes;
return 0;
default:
return ERRNO_CODES.EINVAL;
}
},close:function (sock) {
// if we've spawned a listen server, close it
if (sock.server) {
try {
sock.server.close();
} catch (e) {
}
sock.server = null;
}
// close any peer connections
var peers = Object.keys(sock.peers);
for (var i = 0; i < peers.length; i++) {
var peer = sock.peers[peers[i]];
try {
peer.socket.close();
} catch (e) {
}
SOCKFS.websocket_sock_ops.removePeer(sock, peer);
}
return 0;
},bind:function (sock, addr, port) {
if (typeof sock.saddr !== 'undefined' || typeof sock.sport !== 'undefined') {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL); // already bound
}
sock.saddr = addr;
sock.sport = port || _mkport();
// in order to emulate dgram sockets, we need to launch a listen server when
// binding on a connection-less socket
// note: this is only required on the server side
if (sock.type === 2) {
// close the existing server if it exists
if (sock.server) {
sock.server.close();
sock.server = null;
}
// swallow error operation not supported error that occurs when binding in the
// browser where this isn't supported
try {
sock.sock_ops.listen(sock, 0);
} catch (e) {
if (!(e instanceof FS.ErrnoError)) throw e;
if (e.errno !== ERRNO_CODES.EOPNOTSUPP) throw e;
}
}
},connect:function (sock, addr, port) {
if (sock.server) {
throw new FS.ErrnoError(ERRNO_CODS.EOPNOTSUPP);
}
// TODO autobind
// if (!sock.addr && sock.type == 2) {
// }
// early out if we're already connected / in the middle of connecting
if (typeof sock.daddr !== 'undefined' && typeof sock.dport !== 'undefined') {
var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
if (dest) {
if (dest.socket.readyState === dest.socket.CONNECTING) {
throw new FS.ErrnoError(ERRNO_CODES.EALREADY);
} else {
throw new FS.ErrnoError(ERRNO_CODES.EISCONN);
}
}
}
// add the socket to our peer list and set our
// destination address / port to match
var peer = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
sock.daddr = peer.addr;
sock.dport = peer.port;
// always "fail" in non-blocking mode
throw new FS.ErrnoError(ERRNO_CODES.EINPROGRESS);
},listen:function (sock, backlog) {
if (!ENVIRONMENT_IS_NODE) {
throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP);
}
if (sock.server) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL); // already listening
}
var WebSocketServer = require('ws').Server;
var host = sock.saddr;
sock.server = new WebSocketServer({
host: host,
port: sock.sport
// TODO support backlog
});
sock.server.on('connection', function(ws) {
if (sock.type === 1) {
var newsock = SOCKFS.createSocket(sock.family, sock.type, sock.protocol);
// create a peer on the new socket
var peer = SOCKFS.websocket_sock_ops.createPeer(newsock, ws);
newsock.daddr = peer.addr;
newsock.dport = peer.port;
// push to queue for accept to pick up
sock.pending.push(newsock);
} else {
// create a peer on the listen socket so calling sendto
// with the listen socket and an address will resolve
// to the correct client
SOCKFS.websocket_sock_ops.createPeer(sock, ws);
}
});
sock.server.on('closed', function() {
sock.server = null;
});
sock.server.on('error', function() {
// don't throw
});
},accept:function (listensock) {
if (!listensock.server) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
var newsock = listensock.pending.shift();
newsock.stream.flags = listensock.stream.flags;
return newsock;
},getname:function (sock, peer) {
var addr, port;
if (peer) {
if (sock.daddr === undefined || sock.dport === undefined) {
throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
}
addr = sock.daddr;
port = sock.dport;
} else {
// TODO saddr and sport will be set for bind()'d UDP sockets, but what
// should we be returning for TCP sockets that've been connect()'d?
addr = sock.saddr || 0;
port = sock.sport || 0;
}
return { addr: addr, port: port };
},sendmsg:function (sock, buffer, offset, length, addr, port) {
if (sock.type === 2) {
// connection-less sockets will honor the message address,
// and otherwise fall back to the bound destination address
if (addr === undefined || port === undefined) {
addr = sock.daddr;
port = sock.dport;
}
// if there was no address to fall back to, error out
if (addr === undefined || port === undefined) {
throw new FS.ErrnoError(ERRNO_CODES.EDESTADDRREQ);
}
} else {
// connection-based sockets will only use the bound
addr = sock.daddr;
port = sock.dport;
}
// find the peer for the destination address
var dest = SOCKFS.websocket_sock_ops.getPeer(sock, addr, port);
// early out if not connected with a connection-based socket
if (sock.type === 1) {
if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
} else if (dest.socket.readyState === dest.socket.CONNECTING) {
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
}
}
// create a copy of the incoming data to send, as the WebSocket API
// doesn't work entirely with an ArrayBufferView, it'll just send
// the entire underlying buffer
var data;
if (buffer instanceof Array || buffer instanceof ArrayBuffer) {
data = buffer.slice(offset, offset + length);
} else { // ArrayBufferView
data = buffer.buffer.slice(buffer.byteOffset + offset, buffer.byteOffset + offset + length);
}
// if we're emulating a connection-less dgram socket and don't have
// a cached connection, queue the buffer to send upon connect and
// lie, saying the data was sent now.
if (sock.type === 2) {
if (!dest || dest.socket.readyState !== dest.socket.OPEN) {
// if we're not connected, open a new connection
if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
dest = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
}
dest.dgram_send_queue.push(data);
return length;
}
}
try {
// send the actual data
dest.socket.send(data);
return length;
} catch (e) {
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
}
},recvmsg:function (sock, length) {
// http://pubs.opengroup.org/onlinepubs/7908799/xns/recvmsg.html
if (sock.type === 1 && sock.server) {
// tcp servers should not be recv()'ing on the listen socket
throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
}
var queued = sock.recv_queue.shift();
if (!queued) {
if (sock.type === 1) {
var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
if (!dest) {
// if we have a destination address but are not connected, error out
throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
}
else if (dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
// return null if the socket has closed
return null;
}
else {
// else, our socket is in a valid state but truly has nothing available
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
}
} else {
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
}
}
// queued.data will be an ArrayBuffer if it's unadulterated, but if it's
// requeued TCP data it'll be an ArrayBufferView
var queuedLength = queued.data.byteLength || queued.data.length;
var queuedOffset = queued.data.byteOffset || 0;
var queuedBuffer = queued.data.buffer || queued.data;
var bytesRead = Math.min(length, queuedLength);
var res = {
buffer: new Uint8Array(queuedBuffer, queuedOffset, bytesRead),
addr: queued.addr,
port: queued.port
};
// push back any unread data for TCP connections
if (sock.type === 1 && bytesRead < queuedLength) {
var bytesRemaining = queuedLength - bytesRead;
queued.data = new Uint8Array(queuedBuffer, queuedOffset + bytesRead, bytesRemaining);
sock.recv_queue.unshift(queued);
}
return res;
}}};function _send(fd, buf, len, flags) {
var sock = SOCKFS.getSocket(fd);
if (!sock) {
___setErrNo(ERRNO_CODES.EBADF);
return -1;
}
// TODO honor flags
return _write(fd, buf, len);
}
function _pwrite(fildes, buf, nbyte, offset) {
// ssize_t pwrite(int fildes, const void *buf, size_t nbyte, off_t offset);
// http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html
var stream = FS.getStream(fildes);
if (!stream) {
___setErrNo(ERRNO_CODES.EBADF);
return -1;
}
try {
var slab = HEAP8;
return FS.write(stream, slab, buf, nbyte, offset);
} catch (e) {
FS.handleFSError(e);
return -1;
}
}function _write(fildes, buf, nbyte) {
// ssize_t write(int fildes, const void *buf, size_t nbyte);
// http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html
var stream = FS.getStream(fildes);
if (!stream) {
___setErrNo(ERRNO_CODES.EBADF);
return -1;
}
try {
var slab = HEAP8;
return FS.write(stream, slab, buf, nbyte);
} catch (e) {
FS.handleFSError(e);
return -1;
}
}function _fwrite(ptr, size, nitems, stream) {
// size_t fwrite(const void *restrict ptr, size_t size, size_t nitems, FILE *restrict stream);
// http://pubs.opengroup.org/onlinepubs/000095399/functions/fwrite.html
var bytesToWrite = nitems * size;
if (bytesToWrite == 0) return 0;
var bytesWritten = _write(stream, ptr, bytesToWrite);
if (bytesWritten == -1) {
var streamObj = FS.getStream(stream);
if (streamObj) streamObj.error = true;
return 0;
} else {
return Math.floor(bytesWritten / size);
}
}
function _strlen(ptr) {
ptr = ptr|0;
var curr = 0;
curr = ptr;
while (HEAP8[(curr)]) {
curr = (curr + 1)|0;
}
return (curr - ptr)|0;
}
function __reallyNegative(x) {
return x < 0 || (x === 0 && (1/x) === -Infinity);
}function __formatString(format, varargs) {
var textIndex = format;
var argIndex = 0;
function getNextArg(type) {
// NOTE: Explicitly ignoring type safety. Otherwise this fails:
// int x = 4; printf("%c\n", (char)x);
var ret;
if (type === 'double') {
ret = HEAPF64[(((varargs)+(argIndex))>>3)];
} else if (type == 'i64') {
ret = [HEAP32[(((varargs)+(argIndex))>>2)],
HEAP32[(((varargs)+(argIndex+8))>>2)]];
argIndex += 8; // each 32-bit chunk is in a 64-bit block
} else {
type = 'i32'; // varargs are always i32, i64, or double
ret = HEAP32[(((varargs)+(argIndex))>>2)];
}
argIndex += Math.max(Runtime.getNativeFieldSize(type), Runtime.getAlignSize(type, null, true));
return ret;
}
var ret = [];
var curr, next, currArg;
while(1) {
var startTextIndex = textIndex;
curr = HEAP8[(textIndex)];
if (curr === 0) break;
next = HEAP8[((textIndex+1)|0)];
if (curr == 37) {
// Handle flags.
var flagAlwaysSigned = false;
var flagLeftAlign = false;
var flagAlternative = false;
var flagZeroPad = false;
flagsLoop: while (1) {
switch (next) {
case 43:
flagAlwaysSigned = true;
break;
case 45:
flagLeftAlign = true;
break;
case 35:
flagAlternative = true;
break;
case 48:
if (flagZeroPad) {
break flagsLoop;
} else {
flagZeroPad = true;
break;
}
default:
break flagsLoop;
}
textIndex++;
next = HEAP8[((textIndex+1)|0)];
}
// Handle width.
var width = 0;
if (next == 42) {
width = getNextArg('i32');
textIndex++;
next = HEAP8[((textIndex+1)|0)];
} else {
while (next >= 48 && next <= 57) {
width = width * 10 + (next - 48);
textIndex++;
next = HEAP8[((textIndex+1)|0)];
}
}
// Handle precision.
var precisionSet = false;
if (next == 46) {
var precision = 0;
precisionSet = true;
textIndex++;
next = HEAP8[((textIndex+1)|0)];
if (next == 42) {
precision = getNextArg('i32');
textIndex++;
} else {
while(1) {
var precisionChr = HEAP8[((textIndex+1)|0)];
if (precisionChr < 48 ||
precisionChr > 57) break;
precision = precision * 10 + (precisionChr - 48);
textIndex++;
}
}
next = HEAP8[((textIndex+1)|0)];
} else {
var precision = 6; // Standard default.
}
// Handle integer sizes. WARNING: These assume a 32-bit architecture!
var argSize;
switch (String.fromCharCode(next)) {
case 'h':
var nextNext = HEAP8[((textIndex+2)|0)];
if (nextNext == 104) {
textIndex++;
argSize = 1; // char (actually i32 in varargs)
} else {
argSize = 2; // short (actually i32 in varargs)
}
break;
case 'l':
var nextNext = HEAP8[((textIndex+2)|0)];
if (nextNext == 108) {
textIndex++;
argSize = 8; // long long
} else {
argSize = 4; // long
}
break;
case 'L': // long long
case 'q': // int64_t
case 'j': // intmax_t
argSize = 8;
break;
case 'z': // size_t
case 't': // ptrdiff_t
case 'I': // signed ptrdiff_t or unsigned size_t
argSize = 4;
break;
default:
argSize = null;
}
if (argSize) textIndex++;
next = HEAP8[((textIndex+1)|0)];
// Handle type specifier.
switch (String.fromCharCode(next)) {
case 'd': case 'i': case 'u': case 'o': case 'x': case 'X': case 'p': {
// Integer.
var signed = next == 100 || next == 105;
argSize = argSize || 4;
var currArg = getNextArg('i' + (argSize * 8));
var origArg = currArg;
var argText;
// Flatten i64-1 [low, high] into a (slightly rounded) double
if (argSize == 8) {
currArg = Runtime.makeBigInt(currArg[0], currArg[1], next == 117);
}
// Truncate to requested size.
if (argSize <= 4) {
var limit = Math.pow(256, argSize) - 1;
currArg = (signed ? reSign : unSign)(currArg & limit, argSize * 8);
}
// Format the number.
var currAbsArg = Math.abs(currArg);
var prefix = '';
if (next == 100 || next == 105) {
if (argSize == 8 && i64Math) argText = i64Math.stringify(origArg[0], origArg[1], null); else
argText = reSign(currArg, 8 * argSize, 1).toString(10);
} else if (next == 117) {
if (argSize == 8 && i64Math) argText = i64Math.stringify(origArg[0], origArg[1], true); else
argText = unSign(currArg, 8 * argSize, 1).toString(10);
currArg = Math.abs(currArg);
} else if (next == 111) {
argText = (flagAlternative ? '0' : '') + currAbsArg.toString(8);
} else if (next == 120 || next == 88) {
prefix = (flagAlternative && currArg != 0) ? '0x' : '';
if (argSize == 8 && i64Math) {
if (origArg[1]) {
argText = (origArg[1]>>>0).toString(16);
var lower = (origArg[0]>>>0).toString(16);
while (lower.length < 8) lower = '0' + lower;
argText += lower;
} else {
argText = (origArg[0]>>>0).toString(16);
}
} else
if (currArg < 0) {
// Represent negative numbers in hex as 2's complement.
currArg = -currArg;
argText = (currAbsArg - 1).toString(16);
var buffer = [];
for (var i = 0; i < argText.length; i++) {
buffer.push((0xF - parseInt(argText[i], 16)).toString(16));
}
argText = buffer.join('');
while (argText.length < argSize * 2) argText = 'f' + argText;
} else {
argText = currAbsArg.toString(16);
}
if (next == 88) {
prefix = prefix.toUpperCase();
argText = argText.toUpperCase();
}
} else if (next == 112) {
if (currAbsArg === 0) {
argText = '(nil)';
} else {
prefix = '0x';
argText = currAbsArg.toString(16);
}
}
if (precisionSet) {
while (argText.length < precision) {
argText = '0' + argText;
}
}
// Add sign if needed
if (flagAlwaysSigned) {
if (currArg < 0) {
prefix = '-' + prefix;
} else {
prefix = '+' + prefix;
}
}
// Add padding.
while (prefix.length + argText.length < width) {
if (flagLeftAlign) {
argText += ' ';
} else {
if (flagZeroPad) {
argText = '0' + argText;
} else {
prefix = ' ' + prefix;
}
}
}
// Insert the result into the buffer.
argText = prefix + argText;
argText.split('').forEach(function(chr) {
ret.push(chr.charCodeAt(0));
});
break;
}
case 'f': case 'F': case 'e': case 'E': case 'g': case 'G': {
// Float.
var currArg = getNextArg('double');
var argText;
if (isNaN(currArg)) {
argText = 'nan';
flagZeroPad = false;
} else if (!isFinite(currArg)) {
argText = (currArg < 0 ? '-' : '') + 'inf';
flagZeroPad = false;
} else {
var isGeneral = false;
var effectivePrecision = Math.min(precision, 20);
// Convert g/G to f/F or e/E, as per:
// http://pubs.opengroup.org/onlinepubs/9699919799/functions/printf.html
if (next == 103 || next == 71) {
isGeneral = true;
precision = precision || 1;
var exponent = parseInt(currArg.toExponential(effectivePrecision).split('e')[1], 10);
if (precision > exponent && exponent >= -4) {
next = ((next == 103) ? 'f' : 'F').charCodeAt(0);
precision -= exponent + 1;
} else {
next = ((next == 103) ? 'e' : 'E').charCodeAt(0);
precision--;
}
effectivePrecision = Math.min(precision, 20);
}
if (next == 101 || next == 69) {
argText = currArg.toExponential(effectivePrecision);
// Make sure the exponent has at least 2 digits.
if (/[eE][-+]\d$/.test(argText)) {
argText = argText.slice(0, -1) + '0' + argText.slice(-1);
}
} else if (next == 102 || next == 70) {
argText = currArg.toFixed(effectivePrecision);
if (currArg === 0 && __reallyNegative(currArg)) {
argText = '-' + argText;
}
}
var parts = argText.split('e');
if (isGeneral && !flagAlternative) {
// Discard trailing zeros and periods.
while (parts[0].length > 1 && parts[0].indexOf('.') != -1 &&
(parts[0].slice(-1) == '0' || parts[0].slice(-1) == '.')) {
parts[0] = parts[0].slice(0, -1);
}
} else {
// Make sure we have a period in alternative mode.
if (flagAlternative && argText.indexOf('.') == -1) parts[0] += '.';
// Zero pad until required precision.
while (precision > effectivePrecision++) parts[0] += '0';
}
argText = parts[0] + (parts.length > 1 ? 'e' + parts[1] : '');
// Capitalize 'E' if needed.
if (next == 69) argText = argText.toUpperCase();
// Add sign.
if (flagAlwaysSigned && currArg >= 0) {
argText = '+' + argText;
}
}
// Add padding.
while (argText.length < width) {
if (flagLeftAlign) {
argText += ' ';
} else {
if (flagZeroPad && (argText[0] == '-' || argText[0] == '+')) {
argText = argText[0] + '0' + argText.slice(1);
} else {
argText = (flagZeroPad ? '0' : ' ') + argText;
}
}
}
// Adjust case.
if (next < 97) argText = argText.toUpperCase();
// Insert the result into the buffer.
argText.split('').forEach(function(chr) {
ret.push(chr.charCodeAt(0));
});
break;
}
case 's': {
// String.
var arg = getNextArg('i8*');
var argLength = arg ? _strlen(arg) : '(null)'.length;
if (precisionSet) argLength = Math.min(argLength, precision);
if (!flagLeftAlign) {
while (argLength < width--) {
ret.push(32);
}
}
if (arg) {
for (var i = 0; i < argLength; i++) {
ret.push(HEAPU8[((arg++)|0)]);
}
} else {
ret = ret.concat(intArrayFromString('(null)'.substr(0, argLength), true));
}
if (flagLeftAlign) {
while (argLength < width--) {
ret.push(32);
}
}
break;
}
case 'c': {
// Character.
if (flagLeftAlign) ret.push(getNextArg('i8'));
while (--width > 0) {
ret.push(32);
}
if (!flagLeftAlign) ret.push(getNextArg('i8'));
break;
}
case 'n': {
// Write the length written so far to the next parameter.
var ptr = getNextArg('i32*');
HEAP32[((ptr)>>2)]=ret.length
break;
}
case '%': {
// Literal percent sign.
ret.push(curr);
break;
}
default: {
// Unknown specifiers remain untouched.
for (var i = startTextIndex; i < textIndex + 2; i++) {
ret.push(HEAP8[(i)]);
}
}
}
textIndex += 2;
// TODO: Support a/A (hex float) and m (last error) specifiers.
// TODO: Support %1${specifier} for arg selection.
} else {
ret.push(curr);
textIndex += 1;
}
}
return ret;
}function _fprintf(stream, format, varargs) {
// int fprintf(FILE *restrict stream, const char *restrict format, ...);
// http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html
var result = __formatString(format, varargs);
var stack = Runtime.stackSave();
var ret = _fwrite(allocate(result, 'i8', ALLOC_STACK), 1, result.length, stream);
Runtime.stackRestore(stack);
return ret;
}function _printf(format, varargs) {
// int printf(const char *restrict format, ...);
// http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html
var stdout = HEAP32[((_stdout)>>2)];
return _fprintf(stdout, format, varargs);
}
function _memcpy(dest, src, num) {
dest = dest|0; src = src|0; num = num|0;
var ret = 0;
ret = dest|0;
if ((dest&3) == (src&3)) {
while (dest & 3) {
if ((num|0) == 0) return ret|0;
HEAP8[(dest)]=HEAP8[(src)];
dest = (dest+1)|0;
src = (src+1)|0;
num = (num-1)|0;
}
while ((num|0) >= 4) {
HEAP32[((dest)>>2)]=HEAP32[((src)>>2)];
dest = (dest+4)|0;
src = (src+4)|0;
num = (num-4)|0;
}
}
while ((num|0) > 0) {
HEAP8[(dest)]=HEAP8[(src)];
dest = (dest+1)|0;
src = (src+1)|0;
num = (num-1)|0;
}
return ret|0;
}
function _memset(ptr, value, num) {
ptr = ptr|0; value = value|0; num = num|0;
var stop = 0, value4 = 0, stop4 = 0, unaligned = 0;
stop = (ptr + num)|0;
if ((num|0) >= 20) {
// This is unaligned, but quite large, so work hard to get to aligned settings
value = value & 0xff;
unaligned = ptr & 3;
value4 = value | (value << 8) | (value << 16) | (value << 24);
stop4 = stop & ~3;
if (unaligned) {
unaligned = (ptr + 4 - unaligned)|0;
while ((ptr|0) < (unaligned|0)) { // no need to check for stop, since we have large num
HEAP8[(ptr)]=value;
ptr = (ptr+1)|0;
}
}
while ((ptr|0) < (stop4|0)) {
HEAP32[((ptr)>>2)]=value4;
ptr = (ptr+4)|0;
}
}
while ((ptr|0) < (stop|0)) {
HEAP8[(ptr)]=value;
ptr = (ptr+1)|0;
}
}
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 _free() {
}
Module["_free"] = _free;
var Browser={mainLoop:{scheduler:null,shouldPause:false,paused:false,queue:[],pause:function () {
Browser.mainLoop.shouldPause = true;
},resume:function () {
if (Browser.mainLoop.paused) {
Browser.mainLoop.paused = false;
Browser.mainLoop.scheduler();
}
Browser.mainLoop.shouldPause = false;
},updateStatus:function () {
if (Module['setStatus']) {
var message = Module['statusMessage'] || 'Please wait...';
var remaining = Browser.mainLoop.remainingBlockers;
var expected = Browser.mainLoop.expectedBlockers;
if (remaining) {
if (remaining < expected) {
Module['setStatus'](message + ' (' + (expected - remaining) + '/' + expected + ')');
} else {
Module['setStatus'](message);
}
} else {
Module['setStatus']('');
}
}
}},isFullScreen:false,pointerLock:false,moduleContextCreatedCallbacks:[],workers:[],init:function () {
if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs to exist even in workers
if (Browser.initted || ENVIRONMENT_IS_WORKER) return;
Browser.initted = true;
try {
new Blob();
Browser.hasBlobConstructor = true;
} catch(e) {
Browser.hasBlobConstructor = false;
console.log("warning: no blob constructor, cannot create blobs with mimetypes");
}
Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuilder : (typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : (!Browser.hasBlobConstructor ? console.log("warning: no BlobBuilder") : null));
Browser.URLObject = typeof window != "undefined" ? (window.URL ? window.URL : window.webkitURL) : undefined;
if (!Module.noImageDecoding && typeof Browser.URLObject === 'undefined') {
console.log("warning: Browser does not support creating object URLs. Built-in browser image decoding will not be available.");
Module.noImageDecoding = true;
}
// Support for plugins that can process preloaded files. You can add more of these to
// your app by creating and appending to Module.preloadPlugins.
//
// Each plugin is asked if it can handle a file based on the file's name. If it can,
// it is given the file's raw data. When it is done, it calls a callback with the file's
// (possibly modified) data. For example, a plugin might decompress a file, or it
// might create some side data structure for use later (like an Image element, etc.).
var imagePlugin = {};
imagePlugin['canHandle'] = function(name) {
return !Module.noImageDecoding && /\.(jpg|jpeg|png|bmp)$/i.test(name);
};
imagePlugin['handle'] = function(byteArray, name, onload, onerror) {
var b = null;
if (Browser.hasBlobConstructor) {
try {
b = new Blob([byteArray], { type: Browser.getMimetype(name) });
if (b.size !== byteArray.length) { // Safari bug #118630
// Safari's Blob can only take an ArrayBuffer
b = new Blob([(new Uint8Array(byteArray)).buffer], { type: Browser.getMimetype(name) });
}
} catch(e) {
Runtime.warnOnce('Blob constructor present but fails: ' + e + '; falling back to blob builder');
}
}
if (!b) {
var bb = new Browser.BlobBuilder();
bb.append((new Uint8Array(byteArray)).buffer); // we need to pass a buffer, and must copy the array to get the right data range
b = bb.getBlob();
}
var url = Browser.URLObject.createObjectURL(b);
assert(typeof url == 'string', 'createObjectURL must return a url as a string');
var img = new Image();
img.onload = function() {
assert(img.complete, 'Image ' + name + ' could not be decoded');
var canvas = document.createElement('canvas');
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext('2d');
ctx.drawImage(img, 0, 0);
Module["preloadedImages"][name] = canvas;
Browser.URLObject.revokeObjectURL(url);
if (onload) onload(byteArray);
};
img.onerror = function(event) {
console.log('Image ' + url + ' could not be decoded');
if (onerror) onerror();
};
img.src = url;
};
Module['preloadPlugins'].push(imagePlugin);
var audioPlugin = {};
audioPlugin['canHandle'] = function(name) {
return !Module.noAudioDecoding && name.substr(-4) in { '.ogg': 1, '.wav': 1, '.mp3': 1 };
};
audioPlugin['handle'] = function(byteArray, name, onload, onerror) {
var done = false;
function finish(audio) {
if (done) return;
done = true;
Module["preloadedAudios"][name] = audio;
if (onload) onload(byteArray);
}
function fail() {
if (done) return;
done = true;
Module["preloadedAudios"][name] = new Audio(); // empty shim
if (onerror) onerror();
}
if (Browser.hasBlobConstructor) {
try {
var b = new Blob([byteArray], { type: Browser.getMimetype(name) });
} catch(e) {
return fail();
}
var url = Browser.URLObject.createObjectURL(b); // XXX we never revoke this!
assert(typeof url == 'string', 'createObjectURL must return a url as a string');
var audio = new Audio();
audio.addEventListener('canplaythrough', function() { finish(audio) }, false); // use addEventListener due to chromium bug 124926
audio.onerror = function(event) {
if (done) return;
console.log('warning: browser could not fully decode audio ' + name + ', trying slower base64 approach');
function encode64(data) {
var BASE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
var PAD = '=';
var ret = '';
var leftchar = 0;
var leftbits = 0;
for (var i = 0; i < data.length; i++) {
leftchar = (leftchar << 8) | data[i];
leftbits += 8;
while (leftbits >= 6) {
var curr = (leftchar >> (leftbits-6)) & 0x3f;
leftbits -= 6;
ret += BASE[curr];
}
}
if (leftbits == 2) {
ret += BASE[(leftchar&3) << 4];
ret += PAD + PAD;
} else if (leftbits == 4) {
ret += BASE[(leftchar&0xf) << 2];
ret += PAD;
}
return ret;
}
audio.src = 'data:audio/x-' + name.substr(-3) + ';base64,' + encode64(byteArray);
finish(audio); // we don't wait for confirmation this worked - but it's worth trying
};
audio.src = url;
// workaround for chrome bug 124926 - we do not always get oncanplaythrough or onerror
Browser.safeSetTimeout(function() {
finish(audio); // try to use it even though it is not necessarily ready to play
}, 10000);
} else {
return fail();
}
};
Module['preloadPlugins'].push(audioPlugin);
// Canvas event setup
var canvas = Module['canvas'];
canvas.requestPointerLock = canvas['requestPointerLock'] ||
canvas['mozRequestPointerLock'] ||
canvas['webkitRequestPointerLock'];
canvas.exitPointerLock = document['exitPointerLock'] ||
document['mozExitPointerLock'] ||
document['webkitExitPointerLock'] ||
function(){}; // no-op if function does not exist
canvas.exitPointerLock = canvas.exitPointerLock.bind(document);
function pointerLockChange() {
Browser.pointerLock = document['pointerLockElement'] === canvas ||
document['mozPointerLockElement'] === canvas ||
document['webkitPointerLockElement'] === canvas;
}
document.addEventListener('pointerlockchange', pointerLockChange, false);
document.addEventListener('mozpointerlockchange', pointerLockChange, false);
document.addEventListener('webkitpointerlockchange', pointerLockChange, false);
if (Module['elementPointerLock']) {
canvas.addEventListener("click", function(ev) {
if (!Browser.pointerLock && canvas.requestPointerLock) {
canvas.requestPointerLock();
ev.preventDefault();
}
}, false);
}
},createContext:function (canvas, useWebGL, setInModule) {
var ctx;
try {
if (useWebGL) {
ctx = canvas.getContext('experimental-webgl', {
alpha: false
});
} else {
ctx = canvas.getContext('2d');
}
if (!ctx) throw ':(';
} catch (e) {
Module.print('Could not create canvas - ' + e);
return null;
}
if (useWebGL) {
// Set the background of the WebGL canvas to black
canvas.style.backgroundColor = "black";
// Warn on context loss
canvas.addEventListener('webglcontextlost', function(event) {
alert('WebGL context lost. You will need to reload the page.');
}, false);
}
if (setInModule) {
Module.ctx = ctx;
Module.useWebGL = useWebGL;
Browser.moduleContextCreatedCallbacks.forEach(function(callback) { callback() });
Browser.init();
}
return ctx;
},destroyContext:function (canvas, useWebGL, setInModule) {},fullScreenHandlersInstalled:false,lockPointer:undefined,resizeCanvas:undefined,requestFullScreen:function (lockPointer, resizeCanvas) {
Browser.lockPointer = lockPointer;
Browser.resizeCanvas = resizeCanvas;
if (typeof Browser.lockPointer === 'undefined') Browser.lockPointer = true;
if (typeof Browser.resizeCanvas === 'undefined') Browser.resizeCanvas = false;
var canvas = Module['canvas'];
function fullScreenChange() {
Browser.isFullScreen = false;
if ((document['webkitFullScreenElement'] || document['webkitFullscreenElement'] ||
document['mozFullScreenElement'] || document['mozFullscreenElement'] ||
document['fullScreenElement'] || document['fullscreenElement']) === canvas) {
canvas.cancelFullScreen = document['cancelFullScreen'] ||
document['mozCancelFullScreen'] ||
document['webkitCancelFullScreen'];
canvas.cancelFullScreen = canvas.cancelFullScreen.bind(document);
if (Browser.lockPointer) canvas.requestPointerLock();
Browser.isFullScreen = true;
if (Browser.resizeCanvas) Browser.setFullScreenCanvasSize();
} else if (Browser.resizeCanvas){
Browser.setWindowedCanvasSize();
}
if (Module['onFullScreen']) Module['onFullScreen'](Browser.isFullScreen);
}
if (!Browser.fullScreenHandlersInstalled) {
Browser.fullScreenHandlersInstalled = true;
document.addEventListener('fullscreenchange', fullScreenChange, false);
document.addEventListener('mozfullscreenchange', fullScreenChange, false);
document.addEventListener('webkitfullscreenchange', fullScreenChange, false);
}
canvas.requestFullScreen = canvas['requestFullScreen'] ||
canvas['mozRequestFullScreen'] ||
(canvas['webkitRequestFullScreen'] ? function() { canvas['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null);
canvas.requestFullScreen();
},requestAnimationFrame:function (func) {
if (!window.requestAnimationFrame) {
window.requestAnimationFrame = window['requestAnimationFrame'] ||
window['mozRequestAnimationFrame'] ||
window['webkitRequestAnimationFrame'] ||
window['msRequestAnimationFrame'] ||
window['oRequestAnimationFrame'] ||
window['setTimeout'];
}
window.requestAnimationFrame(func);
},safeCallback:function (func) {
return function() {
if (!ABORT) return func.apply(null, arguments);
};
},safeRequestAnimationFrame:function (func) {
return Browser.requestAnimationFrame(function() {
if (!ABORT) func();
});
},safeSetTimeout:function (func, timeout) {
return setTimeout(function() {
if (!ABORT) func();
}, timeout);
},safeSetInterval:function (func, timeout) {
return setInterval(function() {
if (!ABORT) func();
}, timeout);
},getMimetype:function (name) {
return {
'jpg': 'image/jpeg',
'jpeg': 'image/jpeg',
'png': 'image/png',
'bmp': 'image/bmp',
'ogg': 'audio/ogg',
'wav': 'audio/wav',
'mp3': 'audio/mpeg'
}[name.substr(name.lastIndexOf('.')+1)];
},getUserMedia:function (func) {
if(!window.getUserMedia) {
window.getUserMedia = navigator['getUserMedia'] ||
navigator['mozGetUserMedia'];
}
window.getUserMedia(func);
},getMovementX:function (event) {
return event['movementX'] ||
event['mozMovementX'] ||
event['webkitMovementX'] ||
0;
},getMovementY:function (event) {
return event['movementY'] ||
event['mozMovementY'] ||
event['webkitMovementY'] ||
0;
},mouseX:0,mouseY:0,mouseMovementX:0,mouseMovementY:0,calculateMouseEvent:function (event) { // event should be mousemove, mousedown or mouseup
if (Browser.pointerLock) {
// When the pointer is locked, calculate the coordinates
// based on the movement of the mouse.
// Workaround for Firefox bug 764498
if (event.type != 'mousemove' &&
('mozMovementX' in event)) {
Browser.mouseMovementX = Browser.mouseMovementY = 0;
} else {
Browser.mouseMovementX = Browser.getMovementX(event);
Browser.mouseMovementY = Browser.getMovementY(event);
}
// check if SDL is available
if (typeof SDL != "undefined") {
Browser.mouseX = SDL.mouseX + Browser.mouseMovementX;
Browser.mouseY = SDL.mouseY + Browser.mouseMovementY;
} else {
// just add the mouse delta to the current absolut mouse position
// FIXME: ideally this should be clamped against the canvas size and zero
Browser.mouseX += Browser.mouseMovementX;
Browser.mouseY += Browser.mouseMovementY;
}
} else {
// Otherwise, calculate the movement based on the changes
// in the coordinates.
var rect = Module["canvas"].getBoundingClientRect();
var x, y;
if (event.type == 'touchstart' ||
event.type == 'touchend' ||
event.type == 'touchmove') {
var t = event.touches.item(0);
if (t) {
x = t.pageX - (window.scrollX + rect.left);
y = t.pageY - (window.scrollY + rect.top);
} else {
return;
}
} else {
x = event.pageX - (window.scrollX + rect.left);
y = event.pageY - (window.scrollY + rect.top);
}
// the canvas might be CSS-scaled compared to its backbuffer;
// SDL-using content will want mouse coordinates in terms
// of backbuffer units.
var cw = Module["canvas"].width;
var ch = Module["canvas"].height;
x = x * (cw / rect.width);
y = y * (ch / rect.height);
Browser.mouseMovementX = x - Browser.mouseX;
Browser.mouseMovementY = y - Browser.mouseY;
Browser.mouseX = x;
Browser.mouseY = y;
}
},xhrLoad:function (url, onload, onerror) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'arraybuffer';
xhr.onload = function() {
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);
},asyncLoad:function (url, onload, onerror, noRunDep) {
Browser.xhrLoad(url, function(arrayBuffer) {
assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
onload(new Uint8Array(arrayBuffer));
if (!noRunDep) removeRunDependency('al ' + url);
}, function(event) {
if (onerror) {
onerror();
} else {
throw 'Loading data file "' + url + '" failed.';
}
});
if (!noRunDep) addRunDependency('al ' + url);
},resizeListeners:[],updateResizeListeners:function () {
var canvas = Module['canvas'];
Browser.resizeListeners.forEach(function(listener) {
listener(canvas.width, canvas.height);
});
},setCanvasSize:function (width, height, noUpdates) {
var canvas = Module['canvas'];
canvas.width = width;
canvas.height = height;
if (!noUpdates) Browser.updateResizeListeners();
},windowedWidth:0,windowedHeight:0,setFullScreenCanvasSize:function () {
var canvas = Module['canvas'];
this.windowedWidth = canvas.width;
this.windowedHeight = canvas.height;
canvas.width = screen.width;
canvas.height = screen.height;
// check if SDL is available
if (typeof SDL != "undefined") {
var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
flags = flags | 0x00800000; // set SDL_FULLSCREEN flag
HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
}
Browser.updateResizeListeners();
},setWindowedCanvasSize:function () {
var canvas = Module['canvas'];
canvas.width = this.windowedWidth;
canvas.height = this.windowedHeight;
// check if SDL is available
if (typeof SDL != "undefined") {
var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag
HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
}
Browser.updateResizeListeners();
}};
FS.staticInit();__ATINIT__.unshift({ func: function() { if (!Module["noFSInit"] && !FS.init.initialized) FS.init() } });__ATMAIN__.push({ func: function() { FS.ignorePermissions = false } });__ATEXIT__.push({ func: 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;
___errno_state = Runtime.staticAlloc(4); HEAP32[((___errno_state)>>2)]=0;
__ATINIT__.unshift({ func: function() { TTY.init() } });__ATEXIT__.push({ func: function() { TTY.shutdown() } });TTY.utf8 = new Runtime.UTF8Processor();
__ATINIT__.push({ func: function() { SOCKFS.root = FS.mount(SOCKFS, {}, null); } });
Module["requestFullScreen"] = function(lockPointer, resizeCanvas) { Browser.requestFullScreen(lockPointer, resizeCanvas) };
Module["requestAnimationFrame"] = function(func) { Browser.requestAnimationFrame(func) };
Module["setCanvasSize"] = function(width, height, noUpdates) { Browser.setCanvasSize(width, height, noUpdates) };
Module["pauseMainLoop"] = function() { Browser.mainLoop.pause() };
Module["resumeMainLoop"] = function() { Browser.mainLoop.resume() };
Module["getUserMedia"] = function() { Browser.getUserMedia() }
STACK_BASE = STACKTOP = Runtime.alignMemory(STATICTOP);
staticSealed = true; // seal the static portion of memory
STACK_MAX = STACK_BASE + 5242880;
DYNAMIC_BASE = DYNAMICTOP = Runtime.alignMemory(STACK_MAX);
assert(DYNAMIC_BASE < TOTAL_MEMORY); // Stack must fit in TOTAL_MEMORY; allocations from here on may enlarge TOTAL_MEMORY
var FUNCTION_TABLE = [0, 0];
// EMSCRIPTEN_START_FUNCS
function _main($argc, $argv) {
var label = 0;
var tempVarArgs = 0;
var sp = STACKTOP; (assert((STACKTOP|0) < (STACK_MAX|0))|0);
var $1;
var $2;
var $3;
$1=0;
$2=$argc;
$3=$argv;
var $4=_printf(((8)|0), (tempVarArgs=STACKTOP,STACKTOP = (STACKTOP + 1)|0,STACKTOP = ((((STACKTOP)+7)>>3)<<3),(assert((STACKTOP|0) < (STACK_MAX|0))|0),HEAP32[((tempVarArgs)>>2)]=0,tempVarArgs)); STACKTOP=tempVarArgs;
STACKTOP = sp;
return 0;
}
Module["_main"] = _main;
// EMSCRIPTEN_END_FUNCS
// EMSCRIPTEN_END_FUNCS
// Warning: printing of i64 values may be slightly rounded! No deep i64 math used, so precise i64 code not included
var i64Math = null;
// === Auto-generated postamble setup entry stuff ===
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;
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 || [];
if (ENVIRONMENT_IS_WEB && preloadStartTime !== null) {
Module.printErr('preload time: ' + (Date.now() - preloadStartTime) + ' ms');
}
ensureInitRuntime();
var argc = args.length+1;
function pad() {
for (var i = 0; i < 4-1; i++) {
argv.push(0);
}
}
var argv = [allocate(intArrayFromString("/bin/this.program"), '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);
initialStackTop = STACKTOP;
try {
var ret = Module['_main'](argc, argv, 0);
// if we're not running an evented main loop, it's time to exit
if (!Module['noExitRuntime']) {
exit(ret);
}
}
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 {
throw e;
}
}
}
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;
}
preRun();
if (runDependencies > 0) {
// a preRun added a dependency, run will be called later
return;
}
function doRun() {
ensureInitRuntime();
preMain();
calledRun = true;
if (Module['_main'] && shouldRunNow) {
Module['callMain'](args);
}
postRun();
}
if (Module['setStatus']) {
Module['setStatus']('Running...');
setTimeout(function() {
setTimeout(function() {
Module['setStatus']('');
}, 1);
if (!ABORT) doRun();
}, 1);
} else {
doRun();
}
}
Module['run'] = Module.run = run;
function exit(status) {
ABORT = true;
EXITSTATUS = status;
STACKTOP = initialStackTop;
// exit the runtime
exitRuntime();
// throw an exception to halt the current execution
throw new ExitStatus(status);
}
Module['exit'] = Module.exit = exit;
function abort(text) {
if (text) {
Module.print(text);
Module.printErr(text);
}
ABORT = true;
EXITSTATUS = 1;
throw 'abort() at ' + (new Error().stack);
}
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}}
//@ sourceMappingURL=a.out.js.map
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