* Copyright (c) 2026 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 TOPO_ADDR_INFO_H
#define TOPO_ADDR_INFO_H
#include <cstdio>
#ifdef __cplusplus
extern "C" {
#endif
* 获取topo addr info的大小，用于提前分配内存
* param[in] phy_id NPU物理ID
* param[out] size rankinfo的大小, 注意不是精确大小，能保证装下rankinfo
*/
int topo_addr_info_get_size(int phy_id, size_t* size);
* 获取拓扑文件的路径
* param[in] phy_id NPU物理ID
* param[out] file_path 拓扑文件的路径
* param[out] buf_size 拓扑文件路径的最大长度
*/
int topo_addr_info_get_topo_file_path(int phy_id, char* file_path, size_t buf_size);
* 获取rankinfo的内容，用于集合通信感知每层组网的地址信息
* param[in] phy_id NPU物理ID
* param[out] rank_info rankinfo的内容，为json格式的字符串
* param[out] buf_size 实际大小
*/
int topo_addr_info_get(int phy_id, char* rank_info, size_t* buf_size);
* 获取所有NPU的rootinfo信息，包含所有phy_id的rank信息
* param[out] rank_info 所有NPU的rootinfo内容，为json格式的字符串
* param[out] buf_size 实际大小
*
* JSON格式示例:
* {
* "version": "2.0",
* "topo_file_path": "/path/to/topo",
* "rank_count": 8, // 所有phy_id的rank总数
* "rank_list": [ // 包含所有phy_id的rank信息
* {"device_id": 0, "local_id": 0, ...},
* {"device_id": 1, "local_id": 1, ...},
* ...
* ]
* }
*/
int topo_addr_info_get_all(char* rank_info, size_t* buf_size);
#ifdef __cplusplus
}
#endif
#endif
