Line data    Source code

       1              : /**
       2              :  * Copyright (c) 2026 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 "root_info_detect_bridge.h"
      12              : 
      13              : #include "log.h"
      14              : 
      15              : namespace Hccl {
      16              : namespace {
      17              :     // 槽位位于 hccl_v2，hcomm 的 registrar 在装载期回调这里。
      18              :     // 函数内静态可确保跨 SO 注册发生时槽位已经完成构造。
      19           57 :     RootInfoDetectBridge& BridgeSlot()
      20              :     {
      21              :         static RootInfoDetectBridge bridge{};
      22           57 :         return bridge;
      23              :     }
      24              : } // namespace
      25              : 
      26           48 : HcclResult RegisterRootInfoDetectBridge(const RootInfoDetectBridge& bridge)
      27              : {
      28              :     // 只发布完整回调表，避免兼容入口读取到部分可用的 bridge。
      29           48 :     if (bridge.getRootInfo == nullptr || bridge.detectRankTable == nullptr) {
      30            0 :         return HCCL_E_PTR;
      31              :     }
      32           48 :     auto& registeredBridge = BridgeSlot();
      33              :     // bridge 在装载期固定，禁止运行过程中替换 provider 回调。
      34           48 :     if (registeredBridge.getRootInfo != nullptr || registeredBridge.detectRankTable != nullptr) {
      35            0 :         HCCL_ERROR("[%s] RootInfoDetect bridge has already been registered.", __func__);
      36            0 :         return HCCL_E_INTERNAL;
      37              :     }
      38           48 :     registeredBridge = bridge;
      39           48 :     return HCCL_SUCCESS;
      40              : }
      41              : 
      42            9 : const RootInfoDetectBridge* GetRootInfoDetectBridge()
      43              : {
      44            9 :     const auto& bridge = BridgeSlot();
      45              :     // 未完成注册时统一返回 nullptr，由 hccl_v2 兼容入口转换为明确错误。
      46            9 :     if (bridge.getRootInfo == nullptr || bridge.detectRankTable == nullptr) {
      47            0 :         return nullptr;
      48              :     }
      49            9 :     return &bridge;
      50              : }
      51              : } // namespace Hccl