1 // Copyright 2016 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_SYSLOG_LOGGING_H_ 6 #define BASE_SYSLOG_LOGGING_H_ 7 8 #include <iosfwd> 9 10 #include "base/logging.h" 11 #include "build/build_config.h" 12 13 namespace logging { 14 15 // Keep in mind that the syslog is always active regardless of the logging level 16 // and applied flags. Use only for important information that a system 17 // administrator might need to maintain the browser installation. 18 #define SYSLOG_STREAM(severity) \ 19 COMPACT_GOOGLE_LOG_EX_ ## severity(EventLogMessage).stream() 20 #define SYSLOG(severity) \ 21 SYSLOG_STREAM(severity) 22 23 #if defined(OS_WIN) 24 // Sets the name, category and event id of the event source for logging to the 25 // Windows Event Log. Call this function once before using the SYSLOG macro or 26 // otherwise it will behave as a regular LOG macro. 27 void BASE_EXPORT SetEventSource(const std::string& name, 28 uint16_t category, 29 uint32_t event_id); 30 31 // The event source may get set more than once in tests. This function allows 32 // a test to reset the source when needed. 33 void BASE_EXPORT ResetEventSourceForTesting(); 34 #endif // defined(OS_WIN) 35 36 // Creates a formatted message on the system event log. That would be the 37 // Application Event log on Windows and the messages log file on POSIX systems. 38 class BASE_EXPORT EventLogMessage { 39 public: 40 EventLogMessage(const char* file, int line, LogSeverity severity); 41 42 ~EventLogMessage(); 43 stream()44 std::ostream& stream() { return log_message_.stream(); } 45 46 private: 47 LogMessage log_message_; 48 49 DISALLOW_COPY_AND_ASSIGN(EventLogMessage); 50 }; 51 52 } // namespace logging 53 54 #endif // BASE_SYSLOG_LOGGING_H_ 55