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54 lines
1.5 KiB
54 lines
1.5 KiB
8 years ago
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/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#pragma once
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#include "paddle/memory/detail/memory_block.h"
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#include <stddef.h>
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namespace paddle {
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namespace memory {
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namespace detail {
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class Metadata {
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public:
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Metadata(MemoryBlock::Type t, size_t i, size_t s, size_t ts, MemoryBlock* l,
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MemoryBlock* r);
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public:
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/*! \brief Update the guards when metadata is changed */
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void update_guards();
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/*! \brief Check consistency to previous modification */
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bool check_guards() const;
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public:
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// TODO(gangliao): compress this
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// clang-format off
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size_t guard_begin = 0;
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MemoryBlock::Type type = MemoryBlock::INVALID_CHUNK;
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size_t index = 0;
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size_t size = 0;
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size_t total_size = 0;
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MemoryBlock* left_buddy = nullptr;
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MemoryBlock* right_buddy = nullptr;
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size_t guard_end = 0;
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// clang-format on
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};
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} // namespace detail
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} // namespace memory
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} // namespace paddle
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