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.
5 #ifndef BASE_SYSLOG_LOGGING_H_
6 #define BASE_SYSLOG_LOGGING_H_
10 #include "base/logging.h"
11 #include "build/build_config.h"
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)
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,
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)
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 {
40 EventLogMessage(const char* file, int line, LogSeverity severity);
41 EventLogMessage(const EventLogMessage&) = delete;
42 EventLogMessage& operator=(const EventLogMessage&) = delete;
45 std::ostream& stream() { return log_message_.stream(); }
48 LogMessage log_message_;
51 } // namespace logging
53 #endif // BASE_SYSLOG_LOGGING_H_