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67 lines
1.7 KiB
67 lines
1.7 KiB
9 years ago
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/* Copyright (c) 2016 Baidu, Inc. 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 <memory>
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#include "PoolAllocator.h"
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namespace paddle {
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class MemoryHandle {
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protected:
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explicit MemoryHandle(size_t size);
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virtual ~MemoryHandle() {}
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public:
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void* getBuf() const { return buf_; }
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size_t getSize() const { return size_; }
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size_t getAllocSize() const { return allocSize_; }
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protected:
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PoolAllocator* allocator_;
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size_t size_; // the requested size
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size_t allocSize_; // the allocated size
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int deviceId_; // the device id of memory if gpu memory
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void* buf_;
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};
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/**
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* Wrapper class for raw gpu memory handle.
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*
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* The raw handle will be released at destructor
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*/
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class GpuMemoryHandle : public MemoryHandle {
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public:
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explicit GpuMemoryHandle(size_t size);
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virtual ~GpuMemoryHandle();
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};
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/**
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* Wrapper class for raw cpu memory handle.
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*
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* The raw handle will be released at destructor
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*/
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class CpuMemoryHandle : public MemoryHandle {
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public:
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explicit CpuMemoryHandle(size_t size);
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virtual ~CpuMemoryHandle();
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};
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typedef std::shared_ptr<MemoryHandle> MemoryHandlePtr;
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typedef std::shared_ptr<CpuMemoryHandle> CpuMemHandlePtr;
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typedef std::shared_ptr<GpuMemoryHandle> GpuMemHandlePtr;
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} // namespace paddle
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