* Copyright (c) 2025 Huawei Technologies Co., Ltd.
* This program is free software, you can redistribute it and/or modify it under the terms and conditions of
* CANN Open Software License Agreement Version 2.0 (the "License").
* Please refer to the License for details. You may not use this file except in compliance with the License.
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
* See LICENSE in the root of the software repository for the full text of the License.
*/
#ifndef DLRTS_FUNCTION_V2_H
#define DLRTS_FUNCTION_V2_H
#include <mutex>
#include <dlfcn.h>
#include "log.h"
namespace Hccl {
template<const char *soName>
class DlRtsFunctionV2 {
public:
explicit DlRtsFunctionV2() = default;
virtual ~DlRtsFunctionV2()
{
if (handle_ != nullptr) {
dlclose(handle_);
handle_ = nullptr;
}
}
template<const char *funcName> void *Handle()
{
Init();
if (handle_ == nullptr) {
return nullptr;
}
return dlsym(handle_, funcName);
}
private:
void Init()
{
std::lock_guard<std::mutex> lock(handleMutex_);
if (isInit_) {
return;
}
HCCL_INFO("DlRtsFunctionInit start, open so: %s", soName);
handle_ = dlopen(soName, RTLD_NOW);
const char* errMsg = dlerror();
if (handle_ == nullptr) {
HCCL_ERROR("dlopen [%s] failed, %s", soName,
(errMsg == nullptr) ? "check the file exist or permission denied." : errMsg);
return;
}
isInit_ = true;
}
void *handle_ = nullptr;
std::mutex handleMutex_;
bool isInit_ = false;
};
}
#endif
