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build
node-gyp configure --debug
node-gyp build --debug
test
node test.js
Created
June 8, 2020 18:34
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Node BackingStore Debug Crash
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| { | |
| "targets": [ | |
| { | |
| "target_name": "test_backstor", | |
| 'win_delay_load_hook': 'false', | |
| "sources": [ "test_backstor.cc"], | |
| 'defines': [ "BUILDING_NODE_EXTENSION","BUILD_NODE_ADDON" ], | |
| } | |
| ], | |
| } |
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| { | |
| "name": "testbackingstore", | |
| "version": "1.0.0", | |
| "description": "", | |
| "main": "index.js", | |
| "scripts": { | |
| "test": "echo \"Error: no test specified\" && exit 1", | |
| "install": "node-gyp rebuild" | |
| }, | |
| "author": "", | |
| "license": "ISC", | |
| "gypfile": true | |
| } |
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| test = require( "./build/Debug/test_backstor.node" ); | |
| var buf; | |
| buf = test.getBuffer(); | |
| console.log( "Buffer:", buf ); |
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| #include <node.h> | |
| #include <node_object_wrap.h> | |
| #include <v8.h> | |
| #include <uv.h> | |
| using namespace v8; | |
| using namespace v8; | |
| #define ReadOnlyProperty (PropertyAttribute)((int)PropertyAttribute::ReadOnly | PropertyAttribute::DontDelete) | |
| #define SET_READONLY_METHOD( object, name, method ) (object)->DefineOwnProperty( isolate->GetCurrentContext(), String::NewFromUtf8(isolate, name, v8::NewStringType::kNormal ).ToLocalChecked(), v8::Function::New(isolate->GetCurrentContext(), method ).ToLocalChecked(), ReadOnlyProperty ) | |
| static void releaseBufferBackingStore( void* data, size_t length, void* deleter_data ) { | |
| (void)length; | |
| (void)deleter_data;; | |
| (void)data; // it's actually a static buffer... | |
| //Deallocate( void*, data ); | |
| } | |
| static void makeBuffer( const v8::FunctionCallbackInfo<Value>& args ){ | |
| Isolate *isolate = args.GetIsolate(); | |
| static char buf[] = {"This is a test buffer"}; | |
| std::shared_ptr<BackingStore> bs = ArrayBuffer::NewBackingStore( buf, sizeof(buf), releaseBufferBackingStore, NULL ); | |
| Local<Object> arrayBuffer = ArrayBuffer::New( isolate, bs); | |
| args.GetReturnValue().Set( arrayBuffer ); | |
| } | |
| static void doInit( Local<Context> context, Local<Object> exports ) | |
| { | |
| Isolate* isolate = Isolate::GetCurrent(); | |
| SET_READONLY_METHOD( exports, "getBuffer", makeBuffer ); | |
| } | |
| NODE_MODULE_INIT( /*Local<Object> exports, | |
| Local<Value>Module, | |
| Local<Context> context*/ ) { | |
| doInit(context,exports); | |
| } | |
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