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            3 : 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            3 :     size_t offset = 0;
      32           50 :     for (unsigned int i = 0; i < span.size(); i++)
      33              :     {
      34           47 :         if (i % 8 == 0 && offset != 0)
      35              :         {
      36            4 :             Log(module, category, "%s", output);
      37            4 :             offset = 0;
      38              :         }
      39           47 :         int result = snprintf(&output[offset], sizeof(output) - offset, "0x%02x, ", (unsigned char) span.data()[i]);
      40           47 :         if (result > 0)
      41              :         {
      42           47 :             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            3 :     if (offset != 0)
      51              :     {
      52            3 :         Log(module, category, "%s", output);
      53              :     }
      54              : }
      55              : 
      56              : #endif // _CHIP_USE_LOGGING
      57              : 
      58              : } // namespace Logging
      59              : } // namespace chip