v8插件编译使用
目的：通过c++扩展新模块。
例子代码 wget http://nodejs.org/dist/v0.8.8/node-v0.8.8.tar.gz
解压后在./node-v0.8.8/test/addons/hello-world
一、编写模块：
#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);