LCOV - code coverage report
Current view: top level - acl/aclrt_impl - log.cpp (source / functions) Coverage Total Hit
Test: coverage.info Lines: 89.5 % 19 17
Test Date: 2026-07-28 10:53:01 Functions: 100.0 % 2 2

            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 <cstdarg>
      12              : #include <securec.h>
      13              : #include "acl_rt_impl.h"
      14              : #include "common/log_inner.h"
      15              : 
      16              : namespace {
      17              : constexpr const char_t* const TRUNCATED_MARK = "...[truncated]";
      18              : constexpr size_t TRUNCATED_MARK_LEN = 14U; // strlen("...[truncated]")
      19              : 
      20              : // 在缓冲区尾部覆盖写入截断标记,标记连同结尾 '\0' 仍落在 MAX_LOG_STRING 预算内,避免被下游二次截断。
      21            5 : void AppendTruncatedMark(char_t* const buf)
      22              : {
      23            5 :     (void)strcpy_s(&buf[acl::MAX_LOG_STRING - 1U - TRUNCATED_MARK_LEN], TRUNCATED_MARK_LEN + 1U, TRUNCATED_MARK);
      24            5 : }
      25              : } // namespace
      26              : 
      27              : #ifdef __cplusplus
      28              : extern "C" {
      29              : #endif
      30              : 
      31           10 : void aclAppLogImpl(
      32              :     aclLogLevel logLevel, const char* func, const char* file, uint32_t line, const char* fmt, va_list args)
      33              : {
      34           10 :     if ((fmt == nullptr) || (func == nullptr) || (file == nullptr)) {
      35            0 :         return;
      36              :     }
      37           10 :     if (!acl::AclLog::IsLogOutputEnable(logLevel)) {
      38            0 :         return;
      39              :     }
      40              :     // 使用 vsnprintf_truncated_s / snprintf_truncated_s 而非 vsnprintf_s / sprintf_s:
      41              :     // 后者在内容超长时返回 -1 并丢弃整条日志,前者会截断保留内容(截断时返回 MAX_LOG_STRING - 1)。
      42           10 :     char_t str[acl::MAX_LOG_STRING] = {};
      43           10 :     const int32_t bodyRet = vsnprintf_truncated_s(str, static_cast<size_t>(acl::MAX_LOG_STRING), fmt, args);
      44           10 :     if (bodyRet == -1) {
      45              :         // 仅在格式化字符串非法(如包含 %n)时进入此分支,给出准确提示。
      46            1 :         acl::AclLog::ACLSaveLog(ACL_ERROR, "aclAppLog format string is invalid");
      47            1 :         return;
      48              :     }
      49              : 
      50            9 :     char_t strLog[acl::MAX_LOG_STRING] = {};
      51            9 :     const int32_t headRet = snprintf_truncated_s(
      52              :         strLog, static_cast<size_t>(acl::MAX_LOG_STRING), "%d %s:%s:%u: \"%s\"", acl::AclLog::GetTid(), func, file,
      53              :         line, str);
      54              : 
      55              :     // 正文或头部拼接发生截断时,在最终串尾部补写截断标记,提示用户内容不完整。
      56            9 :     if ((bodyRet >= static_cast<int32_t>(acl::MAX_LOG_STRING - 1U)) ||
      57              :         (headRet >= static_cast<int32_t>(acl::MAX_LOG_STRING - 1U))) {
      58            5 :         AppendTruncatedMark(strLog);
      59              :     }
      60            9 :     acl::AclLog::ACLSaveLog(logLevel, strLog);
      61            9 :     return;
      62              : }
      63              : #ifdef __cplusplus
      64              : }
      65              : #endif
        

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