ukyo

// https://ja.wikipedia.org/wiki/Adler-32

#include <webassembly.h>

#define MOD_ADLER 65521

uint32_t adler32(uint8_t *data, size_t len) {
    uint32_t a = 1, b = 0;

    while (len > 0) {

ukyo

wasmのメモリ管理つらい問題

とりあえずmallocとfreeがあればokなんだが・・・。

解決策1 emscripten使う

• pros: 何も考えなくてもmallocとfreeが手に入る。
• cons: でかい。

解決策2 https://github.com/dcodeIO/webassembly から取り出す

ukyo

(module
  (import "js" "print" (func $print (param f64)))
  (global $PI f64 (f64.const 3.141592653589793))
  (global $SOLAR_MASS f64 (f64.const 39.47841760435743))
  (global $DAYS_PER_YEAR f64 (f64.const 365.24))
  ;; (global $size (mut i32) (i32.const 0))
  (memory $mem 1)

  (func $createBody (param i32 f64 f64 f64 f64 f64 f64 f64)
    (local $offset i32)

ukyo

(module
  (memory 1 1)

  (func (export "test1")
    (local $i i32)
    i32.const 1000000000
    set_local $i
    loop
      i32.const 0
      i64.const 1

ukyo

// see http://indiegamr.com/generate-repeatable-random-numbers-in-js/
// the initial seed
Math.seed = 6;
 
// in order to work 'Math.seed' must NOT be undefined,
// so in any case, you HAVE to provide a Math.seed
Math.seededRandom = function(max, min) {
    max = max || 1;
    min = min || 0;
 

ukyo

ビルドメモ

インスコ

• https://github.com/kripken/emscripten/wiki/WebAssembly emsdkのsdk-incoming-64bit入れる
• https://github.com/WebAssembly/sexpr-wasm-prototype
• https://github.com/WebAssembly/binaryen

~/.emscriptenにBINARYEN_ROOT = 'path/to/binaryen'を追記。

ukyo

node_modules/

ukyo

var fs = require('fs');
var zlib = require('zlib');

var start;
var end;

function unzipFile(name, start, end) {
  var rs = fs.createReadStream('MsEdge.Win10.VMware.zip', {start: start, end: end});
  var inflateStream = zlib.createInflateRaw();
  var ws = fs.createWriteStream(name);

ukyo

# stateごとに管理すればイイんじゃ無いか説
# 再利用可能だとおもったらdirective使う

angular.module 'foo'
.config ($stateProvider) ->
  $stateProvider.state 'home',
    url: '/'
    template: """
      <div>
        <div>{{user.name}} {{user.email}}</div>

ukyo

<?php

require "path/to/mail.php";
echo send_mail("[email protected]", "[email protected]", "subject", "message", "path/to/file.format");