Line data    Source code

       1             : /*
       2             :  *    Copyright (c) 2020-2023 Project CHIP Authors
       3             :  *    Copyright (c) 2013-2017 Nest Labs, Inc.
       4             :  *
       5             :  *    Licensed under the Apache License, Version 2.0 (the "License");
       6             :  *    you may not use this file except in compliance with the License.
       7             :  *    You may obtain a copy of the License at
       8             :  *
       9             :  *        http://www.apache.org/licenses/LICENSE-2.0
      10             :  *
      11             :  *    Unless required by applicable law or agreed to in writing, software
      12             :  *    distributed under the License is distributed on an "AS IS" BASIS,
      13             :  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      14             :  *    See the License for the specific language governing permissions and
      15             :  *    limitations under the License.
      16             :  */
      17             : 
      18             : #include "BinaryLogging.h"
      19             : 
      20             : namespace chip {
      21             : namespace Logging {
      22             : 
      23             : #if _CHIP_USE_LOGGING
      24             : 
      25           1 : void LogByteSpan(uint8_t module, uint8_t category, const ByteSpan & span)
      26             : {
      27             :     // Maximum number of characters needed to print 8 byte buffer including formatting (0x)
      28             :     // 8 bytes * (2 nibbles per byte + 4 character for ", 0x") + null termination.
      29             :     // Rounding up to 50 bytes.
      30             :     char output[50];
      31           1 :     size_t offset = 0;
      32          33 :     for (unsigned int i = 0; i < span.size(); i++)
      33             :     {
      34          32 :         if (i % 8 == 0 && offset != 0)
      35             :         {
      36           3 :             Log(module, category, "%s", output);
      37           3 :             offset = 0;
      38             :         }
      39          32 :         int result = snprintf(&output[offset], sizeof(output) - offset, "0x%02x, ", (unsigned char) span.data()[i]);
      40          32 :         if (result > 0)
      41             :         {
      42          32 :             offset += static_cast<size_t>(result);
      43             :         }
      44             :         else
      45             :         {
      46           0 :             Log(module, Logging::kLogCategory_Error, "Failed to print ByteSpan buffer");
      47           0 :             return;
      48             :         }
      49             :     }
      50           1 :     if (offset != 0)
      51             :     {
      52           1 :         Log(module, category, "%s", output);
      53             :     }
      54             : }
      55             : 
      56             : #endif // _CHIP_USE_LOGGING
      57             : 
      58             : } // namespace Logging
      59             : } // namespace chip