How to print ProcessID and ThreadID in dec format with boost.log
I am using boost.log in my program and the default formatter outputs ProcessID and ThreadID in hex, everyone knows how to print them in dec-format, thanks.
this is the github of my code: https://github.com/owenliang/boost_asio , thanks.
boost::log::formatter scope_formatter = boost::log::expressions::stream << "[" <<
boost::log::expressions::format_date_time<boost::posix_time::ptime>("TimeStamp", "%Y-%m-%d %H:%M:%S") <<
"] [" << boost::log::expressions::attr<boost::log::attributes::current_process_id::value_type>("ProcessID") <<
"-" << boost::log::expressions::attr<boost::log::attributes::current_thread_id::value_type>("ThreadID") << "] [" <<
boost::log::expressions::attr<boost::log::trivial::severity_level>("Severity") <<
"] " << boost::log::expressions::format_named_scope("Scope", boost::log::keywords::format = "%c[%F:%l] ",
boost::log::keywords::depth = 1) << boost::log::expressions::smessage;
+3
source to share
1 answer
Boost Log provides thread and process IDs as a class type. If you want to get their integral value, you need to get your own ID first:
#include <boost/phoenix.hpp>
/* Define place holder attributes */
BOOST_LOG_ATTRIBUTE_KEYWORD(process_id, "ProcessID", attrs::current_process_id::value_type )
BOOST_LOG_ATTRIBUTE_KEYWORD(thread_id, "ThreadID", attrs::current_thread_id::value_type )
// Get Process native ID
attrs::current_process_id::value_type::native_type get_native_process_id(
logging::value_ref<attrs::current_process_id::value_type,
tag::process_id> const& pid)
{
if (pid)
return pid->native_id();
return 0;
}
// Get Thread native ID
attrs::current_thread_id::value_type::native_type get_native_thread_id(
logging::value_ref<attrs::current_thread_id::value_type,
tag::thread_id> const& tid)
{
if (tid)
return tid->native_id();
return 0;
}
Then in your set_formatter () file, for example:
sink->set_formatter
(
expr::stream
<< boost::phoenix::bind(&get_native_process_id, process_id.or_none()) << ":"
<< boost::phoenix::bind(&get_native_thread_id, thread_id.or_none()) << ":"
<< "[" << expr::format_date_time< boost::posix_time::ptime >("TimeStamp", "%Y%m%d %H:%M:%S")
<< "]:*" << severity << "*:"
<< expr::smessage
);
Output:
39157:140229314553664:[20170710 15:32:15]:*INF*:Log message
0
source to share