1 // Copyright 2008 Google Inc. 2 // Author: Lincoln Smith 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 16 #ifndef OPEN_VCDIFF_LOGGING_H_ 17 #define OPEN_VCDIFF_LOGGING_H_ 18 19 #include <config.h> 20 #include <iostream> 21 #include <vector> 22 23 // Windows API defines ERROR 24 #ifdef ERROR 25 #undef ERROR 26 #endif // ERROR 27 28 namespace open_vcdiff { 29 30 enum LogLevel { 31 INFO, 32 WARNING, 33 ERROR, 34 FATAL 35 }; 36 37 #ifndef NDEBUG 38 #define DFATAL FATAL 39 #else // NDEBUG 40 #define DFATAL ERROR 41 #endif // !NDEBUG 42 43 extern bool g_fatal_error_occurred; 44 extern void (*ExitFatal)(); 45 46 inline std::ostream& LogMessage(LogLevel level, const char* level_name) { 47 if (level == FATAL) { 48 g_fatal_error_occurred = true; 49 } 50 return std::cerr << level_name << ": "; 51 } 52 53 inline void CheckFatalError() { 54 if (g_fatal_error_occurred) { 55 g_fatal_error_occurred = false; 56 (*ExitFatal)(); 57 } 58 } 59 60 } // namespace open_vcdiff 61 62 #define LOG(level) LogMessage(open_vcdiff::level, #level) 63 #define LOG_ENDL std::endl; \ 64 open_vcdiff::CheckFatalError(); 65 66 #endif // OPEN_VCDIFF_LOGGING_H_ 67
