ceph/src/rocksdb/logging/logging.h

   1 //  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
   2 //  This source code is licensed under both the GPLv2 (found in the
   3 //  COPYING file in the root directory) and Apache 2.0 License
   4 //  (found in the LICENSE.Apache file in the root directory).
   5 //
   6 // Copyright (c) 2011 The LevelDB Authors. All rights reserved.
   7 // Use of this source code is governed by a BSD-style license that can be
   8 // found in the LICENSE file. See the AUTHORS file for names of contributors.
   9 //
  10 // Must not be included from any .h files to avoid polluting the namespace
  11 // with macros.
  12
  13 #pragma once
  14
  15 // Helper macros that include information about file name and line number
  16 #define ROCKS_LOG_STRINGIFY(x) #x
  17 #define ROCKS_LOG_TOSTRING(x) ROCKS_LOG_STRINGIFY(x)
  18 #define ROCKS_LOG_PREPEND_FILE_LINE(FMT) ("[%s:" ROCKS_LOG_TOSTRING(__LINE__) "] " FMT)
  19
  20 inline const char* RocksLogShorterFileName(const char* file)
  21 {
  22   // 18 is the length of "logging/logging.h".
  23   // If the name of this file changed, please change this number, too.
  24   return file + (sizeof(__FILE__) > 18 ? sizeof(__FILE__) - 18 : 0);
  25 }
  26
  27 // Don't inclide file/line info in HEADER level
  28 #define ROCKS_LOG_HEADER(LGR, FMT, ...) \
  29   ROCKSDB_NAMESPACE::Log(InfoLogLevel::HEADER_LEVEL, LGR, FMT, ##__VA_ARGS__)
  30
  31 #define ROCKS_LOG_DEBUG(LGR, FMT, ...)                     \
  32   ROCKSDB_NAMESPACE::Log(InfoLogLevel::DEBUG_LEVEL, LGR,   \
  33                          ROCKS_LOG_PREPEND_FILE_LINE(FMT), \
  34                          RocksLogShorterFileName(__FILE__), ##__VA_ARGS__)
  35
  36 #define ROCKS_LOG_INFO(LGR, FMT, ...)                      \
  37   ROCKSDB_NAMESPACE::Log(InfoLogLevel::INFO_LEVEL, LGR,    \
  38                          ROCKS_LOG_PREPEND_FILE_LINE(FMT), \
  39                          RocksLogShorterFileName(__FILE__), ##__VA_ARGS__)
  40
  41 #define ROCKS_LOG_WARN(LGR, FMT, ...)                      \
  42   ROCKSDB_NAMESPACE::Log(InfoLogLevel::WARN_LEVEL, LGR,    \
  43                          ROCKS_LOG_PREPEND_FILE_LINE(FMT), \
  44                          RocksLogShorterFileName(__FILE__), ##__VA_ARGS__)
  45
  46 #define ROCKS_LOG_ERROR(LGR, FMT, ...)                     \
  47   ROCKSDB_NAMESPACE::Log(InfoLogLevel::ERROR_LEVEL, LGR,   \
  48                          ROCKS_LOG_PREPEND_FILE_LINE(FMT), \
  49                          RocksLogShorterFileName(__FILE__), ##__VA_ARGS__)
  50
  51 #define ROCKS_LOG_FATAL(LGR, FMT, ...)                     \
  52   ROCKSDB_NAMESPACE::Log(InfoLogLevel::FATAL_LEVEL, LGR,   \
  53                          ROCKS_LOG_PREPEND_FILE_LINE(FMT), \
  54                          RocksLogShorterFileName(__FILE__), ##__VA_ARGS__)
  55
  56 #define ROCKS_LOG_BUFFER(LOG_BUF, FMT, ...)                                 \
  57   ROCKSDB_NAMESPACE::LogToBuffer(LOG_BUF, ROCKS_LOG_PREPEND_FILE_LINE(FMT), \
  58                                  RocksLogShorterFileName(__FILE__),         \
  59                                  ##__VA_ARGS__)
  60
  61 #define ROCKS_LOG_BUFFER_MAX_SZ(LOG_BUF, MAX_LOG_SIZE, FMT, ...) \
  62   ROCKSDB_NAMESPACE::LogToBuffer(                                \
  63       LOG_BUF, MAX_LOG_SIZE, ROCKS_LOG_PREPEND_FILE_LINE(FMT),   \
  64       RocksLogShorterFileName(__FILE__), ##__VA_ARGS__)
  65
  66 #define ROCKS_LOG_DETAILS(LGR, FMT, ...) \
  67   ;  // due to overhead by default skip such lines
  68 // ROCKS_LOG_DEBUG(LGR, FMT, ##__VA_ARGS__)