cc37431a1f
This API can monitor when the object is GCed by V8, this is required by the RPC API since we want to make sure the remote object got destroied when object in renderer is GCed.
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
// Copyright (c) 2013 GitHub, Inc. All rights reserved.
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// Copyright (c) 2012 Intel Corp. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "common/api/object_life_monitor.h"
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namespace atom {
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// static
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void ObjectLifeMonitor::BindTo(v8::Handle<v8::Object> target,
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v8::Handle<v8::Value> destructor) {
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v8::Isolate* isolate = v8::Isolate::GetCurrent();
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target->SetHiddenValue(v8::String::New("destructor"), destructor);
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ObjectLifeMonitor* olm = new ObjectLifeMonitor();
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olm->handle_ = v8::Persistent<v8::Object>::New(isolate, target);
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olm->handle_.MakeWeak(isolate, olm, WeakCallback);
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}
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ObjectLifeMonitor::ObjectLifeMonitor() {
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}
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ObjectLifeMonitor::~ObjectLifeMonitor() {
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if (!handle_.IsEmpty()) {
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v8::Isolate* isolate = v8::Isolate::GetCurrent();
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handle_.ClearWeak(isolate);
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handle_.Dispose(isolate);
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handle_.Clear();
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}
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}
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// static
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void ObjectLifeMonitor::WeakCallback(v8::Isolate* isolate,
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v8::Persistent<v8::Value> value,
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void *data) {
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// destructor.call(object, object);
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{
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v8::HandleScope scope;
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v8::Local<v8::Object> obj = value->ToObject();
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v8::Local<v8::Value> args[] = { obj };
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v8::Local<v8::Function>::Cast(obj->GetHiddenValue(
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v8::String::New("destructor")))->Call(obj, 1, args);
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}
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ObjectLifeMonitor* obj = static_cast<ObjectLifeMonitor*>(data);
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delete obj;
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}
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} // namespace atom
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