Line data    Source code

       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              : 
      11              : #ifndef DLRTS_FUNCTION_V2_H
      12              : #define DLRTS_FUNCTION_V2_H
      13              : 
      14              : #include <mutex>
      15              : #include <dlfcn.h>
      16              : #include "hccl_dl.h"
      17              : #include "log.h"
      18              : namespace Hccl {
      19              : template <const char* soName>
      20              : class DlRtsFunctionV2 {
      21              : public:
      22              :     explicit DlRtsFunctionV2() = default;
      23            5 :     virtual ~DlRtsFunctionV2()
      24              :     {
      25            5 :         if (handle_ != nullptr) {
      26            3 :             HcclDlclose(handle_);
      27            3 :             handle_ = nullptr;
      28              :         }
      29            5 :     }
      30              : 
      31              :     template <const char* funcName>
      32            5 :     void* Handle()
      33              :     {
      34            5 :         Init();
      35            5 :         if (handle_ == nullptr) {
      36            2 :             return nullptr;
      37              :         }
      38            3 :         return HcclDlsym(handle_, funcName);
      39              :     }
      40              : 
      41              : private:
      42            5 :     void Init()
      43              :     {
      44            5 :         std::lock_guard<std::mutex> lock(handleMutex_);
      45            5 :         if (isInit_) {
      46            0 :             return;
      47              :         }
      48           15 :         HCCL_INFO("DlRtsFunctionInit start, open so: %s", soName);
      49            5 :         handle_ = HcclDlopen(soName, RTLD_NOW);
      50            5 :         const char* errMsg = dlerror();
      51            5 :         if (handle_ == nullptr) {
      52            6 :             HCCL_ERROR(
      53              :                 "dlopen [%s] failed, %s", soName,
      54              :                 (errMsg == nullptr) ? "check the file exist or permission denied." : errMsg);
      55            2 :             return;
      56              :         }
      57            3 :         isInit_ = true;
      58            5 :     }
      59              :     void* handle_ = nullptr;
      60              :     std::mutex handleMutex_;
      61              :     bool isInit_ = false;
      62              : };
      63              : } // namespace Hccl
      64              : #endif // DLRTS_FUNCTION_V2_H