NodeJS开发c++扩展模块

建立测试模块代码FaceRecognition.cpp

#include <node.h>



using v8::FunctionCallbackInfo;
using v8::Isolate;
using v8::Local;
using v8::Object;
using v8::String;
using v8::Value;

void CAMOpen(const FunctionCallbackInfo<Value>& args) {
  Isolate* isolate = args.GetIsolate();
  args.GetReturnValue().Set(String::NewFromUtf8(isolate, "cam_open..."));
}

void init(Local<Object> exports) {
  NODE_SET_METHOD(exports, "CAMOpen", CAMOpen);
}

NODE_MODULE(FaceRecognition, init)

建立编译文件binding.gyp

{
  "targets": [
    {
      "target_name": "FaceRecognition",
      "sources": [ "FaceRecognition.cpp" ]
    }
  ]
}

安装编译环境

npm install -g node-gyp

安装python

conda create -name python27 python=2.7

activate python27

编译器

本人的编译环境是vs2015

编译模块

node-gyp configure build

创建测试文件test.js

const FaceRecognition = require('./build/Release/FaceRecognition');

console.log(FaceRecognition.CAMOpen());

测试

开发NodeJS扩展模块也可以使用Native Abstractions for Node.js

https://github.com/nodejs/nan