ts_loger_one_filter.cpp

This usage:

Optimizations:

In this example, all output will be written to the console, debug window, and "out.txt" file. It will look similar to:

00001 [T5884] [1] message 0
00002 [T7168] [2] message 0
00003 [T7932] [3] message 0
00004 [T740] [4] message 0
00005 [T8124] [5] message 0
00006 [T5884] [6] message 1
00007 [T5884] [7] message 2
00008 [T740] [8] message 1
00009 [T7168] [9] message 1
00010 [T7932] [10] message 1
00011 [T8124] [11] message 1
00012 [T5884] [12] message 3
00013 [T7168] [13] message 2
00014 [T5884] [14] message 4
00015 [T740] [15] message 2
00016 [T7932] [16] message 2
00017 [T8124] [17] message 2
00018 [T7168] [18] message 3
00019 [T5884] [19] message 5
00020 ...

00001 
00050 #include <boost/logging/format_fwd.hpp>
00051 BOOST_LOG_FORMAT_MSG( optimize::cache_string_one_str<> )
00052 
00053 #include <boost/logging/format_ts.hpp>
00054 #include <boost/logging/format/formatter/thread_id.hpp>
00055 #include <boost/thread/thread.hpp>
00056 #include <boost/thread/xtime.hpp>
00057 
00058 using namespace boost::logging;
00059 
00060 typedef logger_format_write< default_, default_, writer::threading::ts_write > logger_type;
00061 
00062 #define L_ BOOST_LOG_USE_LOG_IF_FILTER(g_l(), g_log_filter()->is_enabled() ) 
00063 
00064 BOOST_DEFINE_LOG_FILTER(g_log_filter, filter::no_ts ) 
00065 BOOST_DEFINE_LOG(g_l, logger_type)
00066 
00067 void do_sleep(int ms) {
00068     using namespace boost;
00069     xtime next;
00070     xtime_get( &next, TIME_UTC);
00071     next.nsec += (ms % 1000) * 1000000;
00072 
00073     int nano_per_sec = 1000000000;
00074     next.sec += next.nsec / nano_per_sec;
00075     next.sec += ms / 1000;
00076     next.nsec %= nano_per_sec;
00077     thread::sleep( next);
00078 }
00079 
00080 void use_log_thread() {
00081     for ( int i = 0; i < 50; ++i) {
00082         L_ << "message " << i ;
00083         do_sleep(1);
00084     }
00085 }
00086 
00087 void ts_logger_one_filter_example() {
00088     //         add formatters and destinations
00089     //         That is, how the message is to be formatted and where should it be written to
00090     g_l()->writer().add_formatter( formatter::idx(), "[%] "  );
00091     g_l()->writer().add_formatter( formatter::thread_id(), "[T%] "  );
00092     g_l()->writer().add_formatter( formatter::append_newline() );
00093     g_l()->writer().add_destination( destination::file("out.txt") );
00094     g_l()->writer().add_destination( destination::cout() );
00095     g_l()->writer().add_destination( destination::dbg_window() );
00096     g_l()->mark_as_initialized();
00097 
00098     for ( int i = 0 ; i < 5; ++i)
00099         boost::thread t( &use_log_thread);
00100 
00101     // allow for all threads to finish
00102     do_sleep( 5000);
00103 }
00104 
00105 
00106 
00107 
00108 int main() {
00109     ts_logger_one_filter_example();
00110 }
00111 
00112 
00113 // End of file
00114 


Copyright John Torjo © 2007
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