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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              : 
      11              : #ifndef MEM_NAME_REPOSITORY_PUB_H
      12              : #define MEM_NAME_REPOSITORY_PUB_H
      13              : 
      14              : #include <map>
      15              : #include <memory>
      16              : #include <string>
      17              : #include <mutex>
      18              : #include <securec.h>
      19              : #include "log.h"
      20              : #include "hccl_common.h"
      21              : 
      22              : namespace hccl {
      23              : /* IPC 相关 */
      24              : constexpr u32 HCCL_IPC_MEM_NAME_LEN = 65;
      25              : 
      26              : using SecIpcName_t = struct tagSecIpcName {
      27              :     u8 ipcName[HCCL_IPC_MEM_NAME_LEN] = {0};
      28              :     // 析构时,自动将内存数据清零
      29          106 :     ~tagSecIpcName()
      30              :     {
      31          106 :         s32 ret = memset_s(ipcName, HCCL_IPC_MEM_NAME_LEN, 0, HCCL_IPC_MEM_NAME_LEN);
      32          106 :         if (ret != EOK) {
      33            0 :             HCCL_ERROR("[Destroy][TagSecIpcName]errNo[0x%016llx] In SecIpcName, memset_s failed. "\
      34              :                 "errorno[%d]", HCCL_ERROR_CODE(HCCL_E_SYSCALL), ret);
      35              :         }
      36          106 :     }
      37              : };
      38              : 
      39              : struct IpcMemInfo {
      40            0 :     inline bool operator<(const IpcMemInfo& that) const
      41              :     {
      42            0 :         std::string strThat = std::to_string(reinterpret_cast<uintptr_t>(that.ptr)) + std::to_string(that.size) +
      43            0 :             std::to_string(that.isSioToHccs);
      44            0 :         std::string strThis = std::to_string(reinterpret_cast<uintptr_t>(this->ptr)) + std::to_string(this->size) +
      45            0 :             std::to_string(this->isSioToHccs);
      46            0 :         return (strThis < strThat);
      47            0 :     }
      48              :     void *ptr;
      49              :     u64 size;
      50              :     bool isSioToHccs; // sio和hccs并发时，同一块内存需要多次set ipc，通过标记区分
      51              : };
      52              : 
      53              : class MemNameRepository {
      54              : public:
      55              :     ~MemNameRepository();
      56              :     static MemNameRepository* GetInstance(s32 deviceLogicID);
      57              :     // 设置一个ipc mem, 并且返回ipc 名字
      58              :     HcclResult SetIpcMem(void *ptr, u64 size, u8 *name, u32 nameLen, u64 &offset, bool isSioToHccs = false);
      59              : 
      60              :     HcclResult SetIpcMem(void *ptr, u64 size, u8 *name, u32 nameLen);
      61              : 
      62              :     HcclResult SetIpcMem(void *ptr, u64 size, u8 *name, u32 nameLen, u64 &offset, s32 pid,
      63              :         s32 sdid = INVALID_INT, bool isSioToHccs = false);
      64              : 
      65              :     //抽离SetIpcMem的公共逻辑，在SetNameMap中查找MemName,若未找到则插入
      66              :     HcclResult FindIpcMem(IpcMemInfo &ipcMemInfo, u8 *name, u32 nameLen);
      67              :     // 打开ipc nem
      68              :     HcclResult OpenIpcMem(void **ptr, u64 size, const u8 *name, u32 nameLen, u64 offset, bool &isOpened,
      69              :         bool isSioToHccs = false);
      70              : 
      71              :     // 关闭ipc mem
      72              :     void CloseIpcMem(const u8* name);
      73              : 
      74              :     // 销毁ipc mem
      75              :     void DestroyIpcMem(void *ptr, u64 size, bool isSioToHccs = false);
      76              : 
      77              :     // 清空map
      78              :     void ClearMemNameRepository();
      79              : 
      80              :     HcclResult SetDeviceUnavailable(bool unavailable);
      81              : 
      82              : private:
      83              :     std::map<IpcMemInfo, SecIpcName_t> setNameMap_;  // 记录用于input/output和mem name对应关系，由link模块填充
      84              :     std::map<IpcMemInfo, SecIpcName_t> openedNameMap_;  // 记录已打开的mem name 与ptr对应关系
      85              :     std::map<IpcMemInfo, Referenced> setNameMapRef_;  // 记录用于input/output和mem name对应关系的引用计数
      86              :     std::map<IpcMemInfo, Referenced> openedNameMapRef_;  // 记录已打开的mem name 与ptr对应关系的引用计数
      87              :     std::map<IpcMemInfo, IpcMemInfo> alignPtrMap_; // 记录根据页表对齐前后的ipc mem对应关系
      88              :     std::mutex memMutex_;
      89              :     bool unavailable_{false};
      90              :     
      91              :     // 清空map不加锁
      92              :     void ClearMemNameRepositoryImpl();
      93              : };
      94              : }  // namespace hccl
      95              : 
      96              : #endif /* __MEM_NAME_REPOSITRY_PUB_H__ */