1 // Copyright 2016 The Chromium Authors
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/base_export.h"
11 #include "base/logging.h"
12 #include "build/build_config.h"
16 // Keep in mind that the syslog is always active regardless of the logging level
17 // and applied flags. Use only for important information that a system
18 // administrator might need to maintain the browser installation.
19 #define SYSLOG_STREAM(severity) \
20 COMPACT_GOOGLE_LOG_EX_ ## severity(EventLogMessage).stream()
21 #define SYSLOG(severity) \
22 SYSLOG_STREAM(severity)
25 // Sets the name, category and event id of the event source for logging to the
26 // Windows Event Log. Call this function once before using the SYSLOG macro or
27 // otherwise it will behave as a regular LOG macro.
28 void BASE_EXPORT SetEventSource(const std::string& name,
32 // The event source may get set more than once in tests. This function allows
33 // a test to reset the source when needed.
34 void BASE_EXPORT ResetEventSourceForTesting();
35 #endif // BUILDFLAG(IS_WIN)
37 // Creates a formatted message on the system event log. That would be the
38 // Application Event log on Windows and the messages log file on POSIX systems.
39 class BASE_EXPORT EventLogMessage {
41 EventLogMessage(const char* file, int line, LogSeverity severity);
42 EventLogMessage(const EventLogMessage&) = delete;
43 EventLogMessage& operator=(const EventLogMessage&) = delete;
46 std::ostream& stream() { return log_message_.stream(); }
49 LogMessage log_message_;
52 void BASE_EXPORT SetSyslogLoggingForTesting(bool logging_enabled);
54 } // namespace logging
56 #endif // BASE_SYSLOG_LOGGING_H_