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              : #include "proc_reged_mem_mgr_cache.h"
      11              : #include "log.h"
      12              : 
      13              : namespace hcomm {
      14              : 
      15              : std::shared_ptr<RegedMemMgr>
      16          199 : ProcRegedMemMgrCache::GetOrCreate(const MemMgrCacheKey& key, std::function<std::shared_ptr<RegedMemMgr>()> creator)
      17              : {
      18          199 :     std::lock_guard<std::mutex> lock(mtx_);
      19          199 :     auto it = cacheMap_.find(key);
      20          199 :     if (it != cacheMap_.end()) {
      21          136 :         it->second.refCount++;
      22          136 :         HCCL_INFO(
      23              :             "[ProcRegedMemMgrCache][GetOrCreate] cache hit, refCount[%llu]",
      24              :             static_cast<unsigned long long>(it->second.refCount));
      25          136 :         return it->second.mgrPtr;
      26              :     }
      27              : 
      28           63 :     auto mgrPtr = creator();
      29           63 :     MemMgrEntry entry{mgrPtr, 1};
      30           63 :     cacheMap_.emplace(key, entry);
      31           63 :     HCCL_INFO("[ProcRegedMemMgrCache][GetOrCreate] cache miss, new instance inserted");
      32           63 :     return mgrPtr;
      33          199 : }
      34              : 
      35          219 : void ProcRegedMemMgrCache::Release(const MemMgrCacheKey& key)
      36              : {
      37          219 :     std::lock_guard<std::mutex> lock(mtx_);
      38          219 :     auto it = cacheMap_.find(key);
      39          219 :     if (it == cacheMap_.end()) {
      40           49 :         HCCL_WARNING("[ProcRegedMemMgrCache][Release] key not found, skip release");
      41           49 :         return;
      42              :     }
      43          170 :     if (it->second.refCount > 0) {
      44          170 :         it->second.refCount--;
      45              :     }
      46          170 :     if (it->second.refCount == 0) {
      47           58 :         cacheMap_.erase(it);
      48           58 :         HCCL_INFO("[ProcRegedMemMgrCache][Release] refCount zero, entry erased");
      49              :     } else {
      50          112 :         HCCL_INFO(
      51              :             "[ProcRegedMemMgrCache][Release] refCount remain [%llu]",
      52              :             static_cast<unsigned long long>(it->second.refCount));
      53              :     }
      54          219 : }
      55              : 
      56              : } // namespace hcomm