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TA贡献1909条经验 获得超7个赞
编写node的C/C++原生扩展
[1]打开Windows命令行cmd.exe,进入D:\node-v0.10.5,执行vcbuild.bat release,最后会在D:\node-v0.10.5\Release目录下可以找到编译好的node.exe、node.lib等文件。
[2]制作编译安装批处理文件,此处命名为nodins.bat,文件内容如下:
@echo off
if "%1"=="" goto help
mkdir "%1"
mkdir "%1"\include
copy /y src\node.h "%1"\include
copy /y src\node_object_wrap.h "%1"\include
copy /y src\node_buffer.h "%1"\include
copy /y src\node_version.h "%1"\include
copy /y deps\v8\include\*.h "%1"\include\
copy /y deps\uv\include\*.h "%1"\include\
mkdir "%1"\include\uv-private
copy /y deps\uv\include\uv-private\*.h "%1"\include\uv-private
mkdir "%1"\include\ev
copy /y deps\uv\src\ev\*.h "%1"\include\ev
mkdir "%1"\include\c-ares
copy /y deps\uv\include\ares.h "%1"\include\c-ares
copy /y deps\uv\include\ares_version.h "%1"\include\c-ares
mkdir "%1"\lib
copy /y Release\node.lib "%1"\lib
copy /y Release\node.exe "%1"
echo =================================
echo Install succeefully!
goto exit
if not errorlevel 0 echo Error "install-path" & goto exit
:help
echo nodins.bat install-path
:exit
[3]打开Windows命令行cmd.exe,切换 进入D:\node-v0.10.5目录。将文件nodins.bat拷贝到D:\node-v0.10.5中,在命令行执行:nodins.bat D:\nodejs,则生成编译C/C++扩展的编译环境(包括头文件、库和可执行文件)D:\nodejs目录,内容如下:
[4]用Visual Studio 2010创建一个DLL工程空白工程hellonode放在D:\目录下,新建项目—>win32控制台程序,然后进入如下页面:
[5]创建一个C++文件如hellonode.cpp,代码如下:
#define BUILDING_NODE_EXTENSION
#include <node.h>
using namespace v8;
Handle<Value> Hello(const Arguments& args) {
HandleScope scope;
return scope.Close(String::New("Hello world!"));
}
Handle<Value> Add(const Arguments& args) {
HandleScope scope;
if (args.Length() < 2) {
ThrowException(Exception::TypeError(String::New("Wrong number of arguments")));
return scope.Close(Undefined());
}
if (!args[0]->IsNumber() || !args[1]->IsNumber()) {
ThrowException(Exception::TypeError(String::New("Wrong arguments")));
return scope.Close(Undefined());
}
Local<Number> num = Number::New(args[0]->NumberValue() +
args[1]->NumberValue());
return scope.Close(num);
}
void init(Handle<Object> target) {
NODE_SET_METHOD(target, "hello", Hello);
NODE_SET_METHOD(target, "add", Add);
}
NODE_MODULE(hellonode, init)
[6]在工程属性的配置属性-常规中将输出目录改为.\;
[7]在工程属性的配置属性-常规中将目标文件扩展名改为.node;
[8]在工程属性的配置属性-C/C++-常规-附加包含目录添加头文件目录为:D:\nodejs\include
[9]在工程属性的配置属性-链接器-常规-附加库目录添加目录:D:\nodejs\lib
[10]在工程属性的配置属性-链接器-输入-附加依赖项添加lib库:node.lib
[11]编译生成后在D:\hellonode\hellonode中生成一个文件hellonode.node;
[12]在D:\hellonode目录创建js测试代码test.js,代码如下:
var addons = require('./hellonode');
console.log('C/C++ addons.hello() =', addons.hello());
console.log('C/C++ addons.add(200, 300) =', addons.add(200, 300));
[13]在命令行执行node .\test.js(若未配置node.exe的路径变量,则执行:D:\nodejs\node .\test.js)
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