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              : #include "proc_reged_mem_mgr_cache.h"
      12              : #include "log.h"
      13              : 
      14              : namespace hcomm {
      15              : 
      16              : std::shared_ptr<RegedMemMgr>
      17          201 : ProcRegedMemMgrCache::GetOrCreate(const MemMgrCacheKey& key, std::function<std::shared_ptr<RegedMemMgr>()> creator)
      18              : {
      19          201 :     std::lock_guard<std::mutex> lock(mtx_);
      20          201 :     auto it = cacheMap_.find(key);
      21          201 :     if (it != cacheMap_.end()) {
      22          136 :         it->second.refCount++;
      23          136 :         HCCL_INFO(
      24              :             "[ProcRegedMemMgrCache][GetOrCreate] cache hit, refCount[%llu]",
      25              :             static_cast<unsigned long long>(it->second.refCount));
      26          136 :         return it->second.mgrPtr;
      27              :     }
      28              : 
      29           65 :     auto mgrPtr = creator();
      30           65 :     MemMgrEntry entry{mgrPtr, 1};
      31           65 :     cacheMap_.emplace(key, entry);
      32           65 :     HCCL_INFO("[ProcRegedMemMgrCache][GetOrCreate] cache miss, new instance inserted");
      33           65 :     return mgrPtr;
      34          201 : }
      35              : 
      36          221 : void ProcRegedMemMgrCache::Release(const MemMgrCacheKey& key)
      37              : {
      38          221 :     std::lock_guard<std::mutex> lock(mtx_);
      39          221 :     auto it = cacheMap_.find(key);
      40          221 :     if (it == cacheMap_.end()) {
      41           49 :         HCCL_WARNING("[ProcRegedMemMgrCache][Release] key not found, skip release");
      42           49 :         return;
      43              :     }
      44          172 :     if (it->second.refCount > 0) {
      45          172 :         it->second.refCount--;
      46              :     }
      47          172 :     if (it->second.refCount == 0) {
      48           60 :         cacheMap_.erase(it);
      49           60 :         HCCL_INFO("[ProcRegedMemMgrCache][Release] refCount zero, entry erased");
      50              :     } else {
      51          112 :         HCCL_INFO(
      52              :             "[ProcRegedMemMgrCache][Release] refCount remain [%llu]",
      53              :             static_cast<unsigned long long>(it->second.refCount));
      54              :     }
      55          221 : }
      56              : 
      57              : } // namespace hcomm