ceph/src/boost/libs/log/example/doc/sinks_syslog.cpp

   1 /*
   2  *          Copyright Andrey Semashev 2007 - 2015.
   3  * Distributed under the Boost Software License, Version 1.0.
   4  *    (See accompanying file LICENSE_1_0.txt or copy at
   5  *          http://www.boost.org/LICENSE_1_0.txt)
   6  */
   7
   8 #include <boost/config.hpp>
   9 #if !defined(BOOST_WINDOWS)
  10 #define BOOST_LOG_USE_NATIVE_SYSLOG
  11 #endif
  12
  13 #include <string>
  14 #include <boost/smart_ptr/shared_ptr.hpp>
  15 #include <boost/smart_ptr/make_shared_object.hpp>
  16 #include <boost/log/core.hpp>
  17 #include <boost/log/sinks/sync_frontend.hpp>
  18 #include <boost/log/sinks/syslog_backend.hpp>
  19 #include <boost/log/sources/severity_logger.hpp>
  20 #include <boost/log/sources/record_ostream.hpp>
  21 #include <boost/log/attributes/scoped_attribute.hpp>
  22
  23 namespace logging = boost::log;
  24 namespace src = boost::log::sources;
  25 namespace sinks = boost::log::sinks;
  26 namespace keywords = boost::log::keywords;
  27
  28 //[ example_sinks_syslog
  29 // Complete sink type
  30 typedef sinks::synchronous_sink< sinks::syslog_backend > sink_t;
  31
  32 //<-
  33 #if defined(BOOST_LOG_USE_NATIVE_SYSLOG)
  34 //->
  35 void init_native_syslog()
  36 {
  37     boost::shared_ptr< logging::core > core = logging::core::get();
  38
  39     // Create a backend
  40     boost::shared_ptr< sinks::syslog_backend > backend(new sinks::syslog_backend(
  41         keywords::facility = sinks::syslog::user,               /*< the logging facility >*/
  42         keywords::use_impl = sinks::syslog::native              /*< the native syslog API should be used >*/
  43     ));
  44
  45     // Set the straightforward level translator for the "Severity" attribute of type int
  46     backend->set_severity_mapper(sinks::syslog::direct_severity_mapping< int >("Severity"));
  47
  48     // Wrap it into the frontend and register in the core.
  49     // The backend requires synchronization in the frontend.
  50     core->add_sink(boost::make_shared< sink_t >(backend));
  51 }
  52 //<-
  53 #endif
  54 //->
  55
  56 //<-
  57 #if !defined(BOOST_LOG_NO_ASIO)
  58 //->
  59 void init_builtin_syslog()
  60 {
  61     boost::shared_ptr< logging::core > core = logging::core::get();
  62
  63     // Create a new backend
  64     boost::shared_ptr< sinks::syslog_backend > backend(new sinks::syslog_backend(
  65         keywords::facility = sinks::syslog::local0,             /*< the logging facility >*/
  66         keywords::use_impl = sinks::syslog::udp_socket_based    /*< the built-in socket-based implementation should be used >*/
  67     ));
  68
  69     // Setup the target address and port to send syslog messages to
  70     backend->set_target_address("192.164.1.10", 514);
  71
  72     // Create and fill in another level translator for "MyLevel" attribute of type string
  73     sinks::syslog::custom_severity_mapping< std::string > mapping("MyLevel");
  74     mapping["debug"] = sinks::syslog::debug;
  75     mapping["normal"] = sinks::syslog::info;
  76     mapping["warning"] = sinks::syslog::warning;
  77     mapping["failure"] = sinks::syslog::critical;
  78     backend->set_severity_mapper(mapping);
  79
  80     // Wrap it into the frontend and register in the core.
  81     core->add_sink(boost::make_shared< sink_t >(backend));
  82 }
  83 //<-
  84 #endif
  85 //->
  86 //]
  87
  88 int main(int, char*[])
  89 {
  90 #if defined(BOOST_LOG_USE_NATIVE_SYSLOG)
  91     init_native_syslog();
  92 #elif !defined(BOOST_LOG_NO_ASIO)
  93     init_builtin_syslog();
  94 #endif
  95
  96     BOOST_LOG_SCOPED_THREAD_TAG("MyLevel", "warning");
  97     src::severity_logger< > lg;
  98     BOOST_LOG_SEV(lg, 3) << "Hello world!";
  99
 100     return 0;
 101 }