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vmolsavmolsa
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‎binding.gyp‎

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{
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'targets': [
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{
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'target_name': 'sample',
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'sources': [
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'sample.cc',
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],
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"include_dirs" : [
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"<!(node -e \"require('node-arraybuffer')\")"
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]
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},
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],
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}

‎package.json‎

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{
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"dependencies": {
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"node-arraybuffer": "^1.0.0"
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}
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}

‎sample.cc‎

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#include <string>
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#include <node.h>
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#include "ArrayBuffer.h"
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using namespace v8;
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void StringArrayBuffer(const v8::FunctionCallbackInfo<v8::Value>& args) {
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Isolate *isolate = args.GetIsolate();
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const char *str = "!!!EHLO WORLD!!!";
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node::ArrayBuffer *buffer = node::ArrayBuffer::New(isolate, str);
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args.GetReturnValue().Set(buffer->ToArrayBuffer());
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}
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void CreateArrayBuffer(const v8::FunctionCallbackInfo<v8::Value>& args) {
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Isolate *isolate = args.GetIsolate();
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std::string str = "Hello World!";
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node::ArrayBuffer *buffer = node::ArrayBuffer::New(isolate, str);
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args.GetReturnValue().Set(buffer->ToArrayBuffer());
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}
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void PrintWrapped(const v8::FunctionCallbackInfo<v8::Value>& args) {
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Isolate *isolate = args.GetIsolate();
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if (args[0]->IsArrayBuffer() || args[0]->IsTypedArray()) {
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Local<ArrayBuffer> arraybuffer;
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if (args[0]->IsArrayBuffer()) {
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arraybuffer = Local<ArrayBuffer>::Cast(args[0]);
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} else {
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Local<ArrayBufferView> view = Local<ArrayBufferView>::Cast(args[0]);
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arraybuffer = view->Buffer();
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}
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if (!arraybuffer.IsEmpty()) {
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node::ArrayBuffer *buffer = node::ArrayBuffer::New(isolate, arraybuffer);
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std::string str = buffer->Unwrap<std::string>();
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printf("Wrapped: '%s', %zu\n", str.data(), str.length());
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}
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}
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}
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void PrintArrayBuffer(const v8::FunctionCallbackInfo<v8::Value>& args) {
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Isolate *isolate = args.GetIsolate();
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if (args[0]->IsArrayBuffer() || args[0]->IsTypedArray()) {
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Local<ArrayBuffer> arraybuffer;
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if (args[0]->IsArrayBuffer()) {
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arraybuffer = Local<ArrayBuffer>::Cast(args[0]);
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} else {
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Local<ArrayBufferView> view = Local<ArrayBufferView>::Cast(args[0]);
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arraybuffer = view->Buffer();
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}
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if (!arraybuffer.IsEmpty()) {
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node::ArrayBuffer *buffer = node::ArrayBuffer::New(isolate, arraybuffer);
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printf("Buffer Size: '%s', %zu\n", buffer->String(), buffer->Length());
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}
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}
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}
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void DisposeMemory(const v8::FunctionCallbackInfo<v8::Value>& args) {
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Isolate *isolate = args.GetIsolate();
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while(!isolate->IdleNotification(1000));
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}
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void SampleInit(Handle<Object> exports) {
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Isolate* isolate = Isolate::GetCurrent();
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HandleScope scope(isolate);
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exports->Set(String::NewFromUtf8(isolate, "StringArrayBuffer"),
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FunctionTemplate::New(isolate, StringArrayBuffer)->GetFunction());
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exports->Set(String::NewFromUtf8(isolate, "CreateArrayBuffer"),
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FunctionTemplate::New(isolate, CreateArrayBuffer)->GetFunction());
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exports->Set(String::NewFromUtf8(isolate, "PrintWrapped"),
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FunctionTemplate::New(isolate, PrintWrapped)->GetFunction());
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exports->Set(String::NewFromUtf8(isolate, "PrintArrayBuffer"),
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FunctionTemplate::New(isolate, PrintArrayBuffer)->GetFunction());
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exports->Set(String::NewFromUtf8(isolate, "DisposeMemory"),
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FunctionTemplate::New(isolate, DisposeMemory)->GetFunction());
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}
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NODE_MODULE(sample, SampleInit);

‎sample.js‎

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var sample = require('./build/Release/sample.node');
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function PrintJS(arrayBuffer) {
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var buffer = new Buffer(new Uint8Array(arrayBuffer));
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console.log('JS:', "'" + buffer.toString('utf8') + "'", Buffer.byteLength(buffer, 'utf8'));
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}
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function Print(arrayBuffer) {
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if (!arrayBuffer) {
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var buf = new Buffer(5);
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buf.write('HELLO', 0);
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var arrayBuffer = new Uint8Array(buf).buffer;
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}
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sample.PrintArrayBuffer(arrayBuffer);
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PrintJS(arrayBuffer);
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}
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function Create() {
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var arrayBuffer = sample.CreateArrayBuffer();
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Print(arrayBuffer);
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sample.PrintWrapped(arrayBuffer);
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}
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function String() {
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var arrayBuffer = sample.StringArrayBuffer();
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Print(arrayBuffer);
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}
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for (var index = 0; index < 100; index++) {
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Print();
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Create();
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String();
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}
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sample.DisposeMemory();

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