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91 lines
2.3 KiB
91 lines
2.3 KiB
// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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#ifndef _WIN32
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#include <memory>
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#include <mutex> // NOLINT
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#include <string>
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#include <unordered_set>
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#include <utility>
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#include "paddle/fluid/memory/allocation/allocator.h"
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namespace paddle {
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namespace memory {
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namespace allocation {
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class MemoryMapWriterAllocation : public Allocation {
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public:
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explicit MemoryMapWriterAllocation(void *ptr, size_t size,
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std::string ipc_name)
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: Allocation(ptr, size, platform::CPUPlace()),
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ipc_name_(std::move(ipc_name)) {}
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inline const std::string &ipc_name() const { return ipc_name_; }
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~MemoryMapWriterAllocation() override;
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private:
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std::string ipc_name_;
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};
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class MemoryMapReaderAllocation : public Allocation {
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public:
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explicit MemoryMapReaderAllocation(void *ptr, size_t size,
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std::string ipc_name)
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: Allocation(ptr, size, platform::CPUPlace()),
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ipc_name_(std::move(ipc_name)) {}
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inline const std::string &ipc_name() const { return ipc_name_; }
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~MemoryMapReaderAllocation() override;
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private:
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std::string ipc_name_;
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};
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std::shared_ptr<MemoryMapWriterAllocation> AllocateMemoryMapWriterAllocation(
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size_t size);
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std::shared_ptr<MemoryMapReaderAllocation> RebuildMemoryMapReaderAllocation(
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const std::string &ipc_name, size_t size);
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class MemoryMapFdSet {
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public:
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static MemoryMapFdSet &Instance(); // NOLINT
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void Insert(const std::string &ipc_name);
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void Remove(const std::string &ipc_name);
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void Clear();
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~MemoryMapFdSet();
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private:
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MemoryMapFdSet() = default;
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std::unordered_set<std::string> fd_set_;
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std::mutex mtx_;
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};
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} // namespace allocation
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} // namespace memory
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} // namespace paddle
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#endif
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