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- /*
- * Copyright Andrey Semashev 2007 - 2015.
- * Distributed under the Boost Software License, Version 1.0.
- * (See accompanying file LICENSE_1_0.txt or copy at
- * http://www.boost.org/LICENSE_1_0.txt)
- */
- /*!
- * \file main.cpp
- * \author Andrey Semashev
- * \date 07.03.2009
- *
- * \brief An example of logging to a syslog server (syslogd, for example).
- *
- * The example shows how to initialize logging to a local syslog server.
- * The code creates a sink that will use native syslog API to emit messages.
- */
- // #define BOOST_LOG_DYN_LINK 1
- #include <boost/config.hpp>
- #if !defined(BOOST_WINDOWS)
- #define BOOST_LOG_USE_NATIVE_SYSLOG
- #endif
- #include <stdexcept>
- #include <string>
- #include <iostream>
- #include <boost/smart_ptr/shared_ptr.hpp>
- #include <boost/log/common.hpp>
- #include <boost/log/expressions.hpp>
- #include <boost/log/attributes.hpp>
- #include <boost/log/sinks/sync_frontend.hpp>
- #include <boost/log/sinks/syslog_backend.hpp>
- #if defined(BOOST_LOG_USE_NATIVE_SYSLOG)
- namespace logging = boost::log;
- namespace attrs = boost::log::attributes;
- namespace src = boost::log::sources;
- namespace sinks = boost::log::sinks;
- namespace expr = boost::log::expressions;
- namespace keywords = boost::log::keywords;
- using boost::shared_ptr;
- //! Define application-specific severity levels
- enum severity_levels
- {
- normal,
- warning,
- error
- };
- int main(int argc, char* argv[])
- {
- try
- {
- // Create a syslog sink
- shared_ptr< sinks::synchronous_sink< sinks::syslog_backend > > sink(
- new sinks::synchronous_sink< sinks::syslog_backend >(
- keywords::use_impl = sinks::syslog::native,
- keywords::facility = sinks::syslog::local7));
- sink->set_formatter
- (
- expr::format("native_syslog: %1%: %2%")
- % expr::attr< unsigned int >("RecordID")
- % expr::smessage
- );
- // We'll have to map our custom levels to the syslog levels
- sinks::syslog::custom_severity_mapping< severity_levels > mapping("Severity");
- mapping[normal] = sinks::syslog::info;
- mapping[warning] = sinks::syslog::warning;
- mapping[error] = sinks::syslog::critical;
- sink->locked_backend()->set_severity_mapper(mapping);
- // Add the sink to the core
- logging::core::get()->add_sink(sink);
- // Add some attributes too
- logging::core::get()->add_global_attribute("RecordID", attrs::counter< unsigned int >());
- // Do some logging
- src::severity_logger< severity_levels > lg(keywords::severity = normal);
- BOOST_LOG_SEV(lg, normal) << "A syslog record with normal level";
- BOOST_LOG_SEV(lg, warning) << "A syslog record with warning level";
- BOOST_LOG_SEV(lg, error) << "A syslog record with error level";
- return 0;
- }
- catch (std::exception& e)
- {
- std::cout << "FAILURE: " << e.what() << std::endl;
- return 1;
- }
- }
- #else // defined(BOOST_LOG_USE_NATIVE_SYSLOG)
- int main (int, char*[])
- {
- std::cout << "Native syslog API is not supported on this platform" << std::endl;
- return 0;
- }
- #endif // defined(BOOST_LOG_USE_NATIVE_SYSLOG)
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