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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_LIBARTBASE_BASE_MALLOC_ARENA_POOL_H_
#define ART_LIBARTBASE_BASE_MALLOC_ARENA_POOL_H_
#include <mutex>
#include "arena_allocator.h"
namespace art {
class MallocArenaPool FINAL : public ArenaPool {
public:
MallocArenaPool();
~MallocArenaPool();
Arena* AllocArena(size_t size) OVERRIDE;
void FreeArenaChain(Arena* first) OVERRIDE;
size_t GetBytesAllocated() const OVERRIDE;
void ReclaimMemory() OVERRIDE;
void LockReclaimMemory() OVERRIDE;
// Is a nop for malloc pools.
void TrimMaps() OVERRIDE;
private:
Arena* free_arenas_;
// Use a std::mutex here as Arenas are at the bottom of the lock hierarchy when malloc is used.
mutable std::mutex lock_;
DISALLOW_COPY_AND_ASSIGN(MallocArenaPool);
};
} // namespace art
#endif // ART_LIBARTBASE_BASE_MALLOC_ARENA_POOL_H_