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              : #include <cstdio>
      21              : 
      22              : namespace chip {
      23              : namespace Logging {
      24              : 
      25              : #if _CHIP_USE_LOGGING
      26              : 
      27            0 : void LogByteSpan(uint8_t module, uint8_t category, const ByteSpan & span)
      28              : {
      29              :     // Maximum number of characters needed to print 8 byte buffer including formatting (0x)
      30              :     // 8 bytes * (2 nibbles per byte + 4 character for ", 0x") + null termination.
      31              :     // Rounding up to 50 bytes.
      32              :     char output[50];
      33            0 :     size_t offset = 0;
      34            0 :     for (unsigned int i = 0; i < span.size(); i++)
      35              :     {
      36            0 :         if (i % 8 == 0 && offset != 0)
      37              :         {
      38            0 :             Log(module, category, "%s", output);
      39            0 :             offset = 0;
      40              :         }
      41            0 :         int result = snprintf(&output[offset], sizeof(output) - offset, "0x%02x, ", (unsigned char) span.data()[i]);
      42            0 :         if (result > 0)
      43              :         {
      44            0 :             offset += static_cast<size_t>(result);
      45              :         }
      46              :         else
      47              :         {
      48            0 :             Log(module, Logging::kLogCategory_Error, "Failed to print ByteSpan buffer");
      49            0 :             return;
      50              :         }
      51              :     }
      52            0 :     if (offset != 0)
      53              :     {
      54            0 :         Log(module, category, "%s", output);
      55              :     }
      56              : }
      57              : 
      58              : #endif // _CHIP_USE_LOGGING
      59              : 
      60              : } // namespace Logging
      61              : } // namespace chip