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// Copyright 2021 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 "include/cppgc/heap-consistency.h"
#include "include/cppgc/heap.h"
#include "src/base/logging.h"
#include "src/heap/cppgc/heap-base.h"
namespace cppgc {
namespace subtle {
// static
bool DisallowGarbageCollectionScope::IsGarbageCollectionAllowed(
cppgc::HeapHandle& heap_handle) {
auto& heap_base = internal::HeapBase::From(heap_handle);
return !heap_base.in_disallow_gc_scope();
}
// static
void DisallowGarbageCollectionScope::Enter(cppgc::HeapHandle& heap_handle) {
auto& heap_base = internal::HeapBase::From(heap_handle);
heap_base.disallow_gc_scope_++;
}
// static
void DisallowGarbageCollectionScope::Leave(cppgc::HeapHandle& heap_handle) {
auto& heap_base = internal::HeapBase::From(heap_handle);
DCHECK_GT(heap_base.disallow_gc_scope_, 0);
heap_base.disallow_gc_scope_--;
}
DisallowGarbageCollectionScope::DisallowGarbageCollectionScope(
cppgc::HeapHandle& heap_handle)
: heap_handle_(heap_handle) {
Enter(heap_handle);
}
DisallowGarbageCollectionScope::~DisallowGarbageCollectionScope() {
Leave(heap_handle_);
}
// static
void NoGarbageCollectionScope::Enter(cppgc::HeapHandle& heap_handle) {
auto& heap_base = internal::HeapBase::From(heap_handle);
heap_base.no_gc_scope_++;
}
// static
void NoGarbageCollectionScope::Leave(cppgc::HeapHandle& heap_handle) {
auto& heap_base = internal::HeapBase::From(heap_handle);
DCHECK_GT(heap_base.no_gc_scope_, 0);
heap_base.no_gc_scope_--;
}
NoGarbageCollectionScope::NoGarbageCollectionScope(
cppgc::HeapHandle& heap_handle)
: heap_handle_(heap_handle) {
Enter(heap_handle);
}
NoGarbageCollectionScope::~NoGarbageCollectionScope() { Leave(heap_handle_); }
} // namespace subtle
} // namespace cppgc
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