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TA貢獻(xiàn)1909條經(jīng)驗(yàn) 獲得超7個(gè)贊
編寫node的C/C++原生擴(kuò)展
[1]打開Windows命令行cmd.exe,進(jìn)入D:\node-v0.10.5,執(zhí)行vcbuild.bat release,最后會(huì)在D:\node-v0.10.5\Release目錄下可以找到編譯好的node.exe、node.lib等文件。
[2]制作編譯安裝批處理文件,此處命名為nodins.bat,文件內(nèi)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]打開Windows命令行cmd.exe,切換 進(jìn)入D:\node-v0.10.5目錄。將文件nodins.bat拷貝到D:\node-v0.10.5中,在命令行執(zhí)行:nodins.bat D:\nodejs,則生成編譯C/C++擴(kuò)展的編譯環(huán)境(包括頭文件、庫(kù)和可執(zhí)行文件)D:\nodejs目錄,內(nèi)容如下:
[4]用Visual Studio 2010創(chuàng)建一個(gè)DLL工程空白工程hellonode放在D:\目錄下,新建項(xiàng)目—>win32控制臺(tái)程序,然后進(jìn)入如下頁(yè)面:
[5]創(chuàng)建一個(gè)C++文件如hellonode.cpp,代碼如下:
#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]在工程屬性的配置屬性-常規(guī)中將輸出目錄改為.\;
[7]在工程屬性的配置屬性-常規(guī)中將目標(biāo)文件擴(kuò)展名改為.node;
[8]在工程屬性的配置屬性-C/C++-常規(guī)-附加包含目錄添加頭文件目錄為:D:\nodejs\include
[9]在工程屬性的配置屬性-鏈接器-常規(guī)-附加庫(kù)目錄添加目錄:D:\nodejs\lib
[10]在工程屬性的配置屬性-鏈接器-輸入-附加依賴項(xiàng)添加lib庫(kù):node.lib
[11]編譯生成后在D:\hellonode\hellonode中生成一個(gè)文件hellonode.node;
[12]在D:\hellonode目錄創(chuàng)建js測(cè)試代碼test.js,代碼如下:
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]在命令行執(zhí)行node .\test.js(若未配置node.exe的路徑變量,則執(zhí)行:D:\nodejs\node .\test.js)
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