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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.
#include "src/heap/cppgc/heap-space.h"
#include <algorithm>
#include "src/base/logging.h"
#include "src/heap/cppgc/heap-page.h"
#include "src/heap/cppgc/object-start-bitmap-inl.h"
namespace cppgc {
namespace internal {
BaseSpace::BaseSpace(RawHeap* heap, size_t index, PageType type)
: heap_(heap), index_(index), type_(type) {}
void BaseSpace::AddPage(BasePage* page) {
DCHECK_EQ(pages_.cend(), std::find(pages_.cbegin(), pages_.cend(), page));
pages_.push_back(page);
}
void BaseSpace::RemovePage(BasePage* page) {
auto it = std::find(pages_.cbegin(), pages_.cend(), page);
DCHECK_NE(pages_.cend(), it);
pages_.erase(it);
}
BaseSpace::Pages BaseSpace::RemoveAllPages() {
Pages pages = std::move(pages_);
pages_.clear();
return pages;
}
NormalPageSpace::NormalPageSpace(RawHeap* heap, size_t index)
: BaseSpace(heap, index, PageType::kNormal) {}
void NormalPageSpace::AddToFreeList(void* address, size_t size) {
free_list_.Add({address, size});
NormalPage::From(BasePage::FromPayload(address))
->object_start_bitmap()
.SetBit(static_cast<Address>(address));
}
void NormalPageSpace::ResetLinearAllocationBuffer() {
if (current_lab_.size()) {
DCHECK_NOT_NULL(current_lab_.start());
AddToFreeList(current_lab_.start(), current_lab_.size());
current_lab_.Set(nullptr, 0);
}
}
LargePageSpace::LargePageSpace(RawHeap* heap, size_t index)
: BaseSpace(heap, index, PageType::kLarge) {}
} // namespace internal
} // namespace cppgc
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