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59 lines
1.8 KiB
59 lines
1.8 KiB
4 years ago
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/**
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* Copyright 2019-2020 Huawei Technologies Co., Ltd
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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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*/
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#ifndef GE_GRAPH_MANAGER_HOST_MEM_ALLOCATOR_H_
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#define GE_GRAPH_MANAGER_HOST_MEM_ALLOCATOR_H_
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#include <mutex>
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#include <unordered_map>
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#include "framework/common/ge_inner_error_codes.h"
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#include "graph/aligned_ptr.h"
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#include "runtime/mem.h"
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namespace ge {
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class HostMemAllocator {
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public:
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explicit HostMemAllocator(rtMemType_t memory_type) : memory_type_(memory_type) {}
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~HostMemAllocator() = default;
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HostMemAllocator(const HostMemAllocator &) = delete;
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HostMemAllocator &operator=(const HostMemAllocator &) = delete;
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Status Initialize() {
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Clear();
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return SUCCESS;
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}
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void Finalize() { Clear(); }
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const void *Malloc(const std::shared_ptr<AlignedPtr>& aligned_ptr, size_t size);
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uint8_t *Malloc(size_t size);
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Status Free(const void *memory_addr);
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std::pair<size_t, std::shared_ptr<AlignedPtr>> GetAlignedPtr(const void *addr) { return allocated_blocks_[addr]; }
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private:
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void Clear();
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rtMemType_t memory_type_;
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std::unordered_map<const void *, std::pair<size_t, std::shared_ptr<AlignedPtr>>> allocated_blocks_;
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// lock around all operations
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mutable std::mutex mutex_;
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};
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} // namespace ge
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#endif // GE_GRAPH_MANAGER_HOST_MEM_ALLOCATOR_H_
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