chromium/v8/src/base/region-allocator.h

// 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.

#ifndef V8_BASE_REGION_ALLOCATOR_H_
#define V8_BASE_REGION_ALLOCATOR_H_

#include <set>

#include "src/base/address-region.h"
#include "src/base/utils/random-number-generator.h"
#include "testing/gtest/include/gtest/gtest_prod.h"  // nogncheck

namespace v8 {
namespace base {

// Helper class for managing used/free regions within [address, address+size)
// region. Minimum allocation unit is |page_size|. Requested allocation size
// is rounded up to |page_size|.
// The region allocation algorithm implements best-fit with coalescing strategy:
// it tries to find a smallest suitable free region upon allocation and tries
// to merge region with its neighbors upon freeing.
//
// This class does not perform any actual region reservation.
// Not thread-safe.
class V8_BASE_EXPORT RegionAllocator final { … };

}  // namespace base
}  // namespace v8

#endif  // V8_BASE_REGION_ALLOCATOR_H_