v8插件编译使用

参考
目的通过c++扩展新模块。

例子代码  wget
          解压后在./node-v0.8.8/test/addons/hello-world

一、编写模块：

点击(此处)折叠或打开

#include <node.h>
#include <v8.h>

using namespace v8;

Handle<Value> Method(const Arguments& args) {
  HandleScope scope;
  return scope.Close(String::New("world"));
}

void init(Handle<Object> target) {
  NODE_SET_METHOD(target, "hello", Method);
}

NODE_MODULE(binding, init);

二、编写 binding.gyp

三、编译过程
采用node-gyp组织项目。
1、安装 node-gyp

npm install -g node-gyp

2、编译过程
a、进入目录   cd   ./node-v0.8.8/test/addons/hello-world   （node-v0.8.8源码自带列子） b、node-gyp configure
c、node-gyp build   （默认Debug）
       注：node-gyp build -r(编译release)
四、使用库

var assert = require('assert');
var binding = require('./build/Release/binding');
assert.equal('world', binding.hello());
console.log('binding.hello() =', binding.hello());
~

五、配置文件 参考

{
  'targets': [
    {
      'target_name': 'raffle',
      'sources': [ 'raffle.cc','keyvalue.pb.cc' ],
      'include_dirs': ['/usr/local/include/google/protobuf/'],
      'libraries':['-lprotobuf','-lpthread']
  
    }
  ]
}

六、复杂些的列子

//protoc --cpp_out=. ./keyvalue.proto ;node-gyp clean configure ;vi ./build/raffle.target.mk -lprotobuf -lpthread ;node-gyp build -r
#include <node.h>

#include <node_buffer.h>
#include <v8.h>


using namespace node;
using namespace v8;
using namespace std;

std::string ObjectToString(Local<Value> value) {
  String::Utf8Value utf8_value(value);
  return string(*utf8_value);
}



Handle<Value> testF(const Arguments& args) {
    HandleScope scope;
  if(args.Length() < 6) {
      ThrowException(Exception::TypeError(String::New("Wrong number of arguments")));
       return scope.Close(Undefined());
  }
  if ( !args[0]->IsArray()     || !args[1]->IsArray()
           || !args[2]->IsNumber()     ){

      ThrowException(Exception::TypeError(String::New("Wrong  arguments")));
      return scope.Close(Undefined());
  }

    vector<int> tiletypeV;
    Local<Object> ArryTiletype = args[0]->ToObject();
    int len = ArryTiletype->Get(v8::String::New("length"))->ToObject()->Uint32Value();
    for(int i = 0; i < len; i++){
      Local<Value> element = ArryTiletype->Get(i);
         tiletypeV.push_back(element->Int32Value());
    }



    int num = args[2]->ToNumber()->Int32Value();


    vector<int> playerhandsV;
    playerhandsV.push_back(1)
    playerhandsV.push_back(2);

    Local<Object> ArrayPlayerhands = args[1]->ToObject();
    len = playerhandsV.size();
    for( int i = 0; i < len; i++ ){
        ArrayPlayerhands->Set(i, v8::Integer::New(playerhandsV[i]));
    }


    return scope.Close(Undefined());

 }

void init(Handle<Object> target) {
    NODE_SET_METHOD(target, "test", testF);
}

NODE_MODULE(MJ2AI, init);