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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/objects/managed.h"
namespace v8 {
namespace internal {
namespace {
// Called by the GC in its second pass when a Managed<CppType> is
// garbage collected.
void ManagedObjectFinalizerSecondPass(const v8::WeakCallbackInfo<void>& data) {
auto destructor =
reinterpret_cast<ManagedPtrDestructor*>(data.GetParameter());
Isolate* isolate = reinterpret_cast<Isolate*>(data.GetIsolate());
isolate->UnregisterManagedPtrDestructor(destructor);
int64_t adjustment = 0 - static_cast<int64_t>(destructor->estimated_size_);
destructor->destructor_(destructor->shared_ptr_ptr_);
delete destructor;
data.GetIsolate()->AdjustAmountOfExternalAllocatedMemory(adjustment);
}
} // namespace
// Called by the GC in its first pass when a Managed<CppType> is
// garbage collected.
void ManagedObjectFinalizer(const v8::WeakCallbackInfo<void>& data) {
auto destructor =
reinterpret_cast<ManagedPtrDestructor*>(data.GetParameter());
GlobalHandles::Destroy(destructor->global_handle_location_);
// We need to do the main work as a second pass callback because
// it can trigger garbage collection. The first pass callbacks
// are not allowed to invoke V8 API.
data.SetSecondPassCallback(&ManagedObjectFinalizerSecondPass);
}
} // namespace internal
} // namespace v8