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       1              : /**
       2              :  * Copyright (c) 2025 Huawei Technologies Co., Ltd.
       3              :  * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
       4              :  * CANN Open Software License Agreement Version 2.0 (the "License").
       5              :  * Please refer to the License for details. You may not use this file except in compliance with the License.
       6              :  * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
       7              :  * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
       8              :  * See LICENSE in the root of the software repository for the full text of the License.
       9              :  */
      10              : #ifndef HCCL_Data_DataBuffer_H
      11              : #define HCCL_Data_DataBuffer_H
      12              : 
      13              : #include <cstdint>
      14              : #include <cstddef>
      15              : #include <string>
      16              : #include "string_util.h"
      17              : #include "hash_utils.h"
      18              : namespace Hccl {
      19              : 
      20              : class DataBuffer {
      21              : public:
      22           75 :     DataBuffer(uintptr_t addr, std::size_t size): addr(addr), size(size) {};
      23              : 
      24              :     explicit DataBuffer(std::size_t size) : size(size) {};
      25              : 
      26          466 :     virtual ~DataBuffer() = default;
      27              : 
      28            7 :     uintptr_t GetAddr() const
      29              :     {
      30            7 :         return addr;
      31              :     }
      32              : 
      33           13 :     size_t GetSize() const
      34              :     {
      35           13 :         return size;
      36              :     }
      37              : 
      38            8 :     virtual std::string Describe() const
      39              :     {
      40            8 :         return StringFormat("Buffer[addr=0x%llx, size=0x%llx]", addr, size);
      41              :     }
      42              : 
      43              :     // "=="运算符
      44              :     bool operator==(const DataBuffer &that) const
      45              :     {
      46              :         return (addr == that.GetAddr()) && (size == that.GetSize());
      47              :     }
      48              : 
      49              :     // "!="运算符
      50              :     bool operator!=(const DataBuffer &that) const
      51              :     {
      52              :         return (addr != that.GetAddr()) || (size != that.GetSize());
      53              :     }
      54              : 
      55              : protected:
      56              :     uintptr_t   addr{0};
      57              :     std::size_t size{0};
      58              : };
      59              : } // namespace Hccl
      60              : 
      61              : namespace std {
      62              : 
      63              : template <> class hash<Hccl::DataBuffer> {
      64              : public:
      65              :     size_t operator()(const Hccl::DataBuffer &dataBuffer) const
      66              :     {
      67              :         auto addrHash         = hash<uint8_t>{}(dataBuffer.GetAddr());
      68              :         auto sizeHash        = hash<uint8_t>{}(dataBuffer.GetSize());
      69              : 
      70              :         return Hccl::HashCombine(
      71              :             {addrHash, sizeHash});
      72              :     }
      73              : };
      74              : } // namespace std
      75              : #endif // HCCL_DataBuffer_H