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// Copyright 2020 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.
#ifndef V8_HEAP_LOCAL_HEAP_INL_H_
#define V8_HEAP_LOCAL_HEAP_INL_H_
#include <atomic>
#include "src/common/assert-scope.h"
#include "src/handles/persistent-handles.h"
#include "src/heap/concurrent-allocator-inl.h"
#include "src/heap/heap.h"
#include "src/heap/local-heap.h"
namespace v8 {
namespace internal {
AllocationResult LocalHeap::AllocateRaw(int size_in_bytes, AllocationType type,
AllocationOrigin origin,
AllocationAlignment alignment) {
DCHECK(!FLAG_enable_third_party_heap);
#if DEBUG
VerifyCurrent();
DCHECK(AllowHandleAllocation::IsAllowed());
DCHECK(AllowHeapAllocation::IsAllowed());
DCHECK_IMPLIES(type == AllocationType::kCode || type == AllocationType::kMap,
alignment == AllocationAlignment::kWordAligned);
Heap::HeapState state = heap()->gc_state();
DCHECK(state == Heap::TEAR_DOWN || state == Heap::NOT_IN_GC);
ThreadState current = state_.load(std::memory_order_relaxed);
DCHECK(current == kRunning || current == kSafepointRequested);
#endif
// Each allocation is supposed to be a safepoint.
Safepoint();
bool large_object = size_in_bytes > heap_->MaxRegularHeapObjectSize(type);
CHECK_EQ(type, AllocationType::kOld);
if (large_object)
return heap()->lo_space()->AllocateRawBackground(this, size_in_bytes);
else
return old_space_allocator()->AllocateRaw(size_in_bytes, alignment, origin);
}
Address LocalHeap::AllocateRawOrFail(int object_size, AllocationType type,
AllocationOrigin origin,
AllocationAlignment alignment) {
DCHECK(!FLAG_enable_third_party_heap);
AllocationResult result = AllocateRaw(object_size, type, origin, alignment);
if (!result.IsRetry()) return result.ToObject().address();
return PerformCollectionAndAllocateAgain(object_size, type, origin,
alignment);
}
void LocalHeap::CreateFillerObjectAt(Address addr, int size,
ClearRecordedSlots clear_slots_mode) {
DCHECK_EQ(clear_slots_mode, ClearRecordedSlots::kNo);
heap()->CreateFillerObjectAtBackground(
addr, size, ClearFreedMemoryMode::kDontClearFreedMemory);
}
} // namespace internal
} // namespace v8
#endif // V8_HEAP_LOCAL_HEAP_INL_H_
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