[Boost-bugs] [Boost C++ Libraries] #11719: Create a log file only if some data is written to it

Subject: [Boost-bugs] [Boost C++ Libraries] #11719: Create a log file only if some data is written to it
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-10-12 10:52:09

#11719: Create a log file only if some data is written to it
--------------------------------+-------------------------
 Reporter:  parikshit.nangre@…  |      Owner:  andysem
     Type:  Support Requests    |     Status:  new
Milestone:  To Be Determined    |  Component:  log
  Version:  Boost 1.59.0        |   Severity:  Showstopper
 Keywords:                      |
--------------------------------+-------------------------
 I am creating a log file using

 src::severity_logger< severity_level > m_DbLogger;
 logging::add_file_log
 (

    keywords::auto_flush = true,
    keywords::file_name = m_Settings.LogFileSQL + "_diagnostics.log",
    keywords::time_based_rotation = sinks::file::rotation_at_time_point(0,
 0,     0),
    keywords::format =
    (
       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< severity_level
 >("Severity")
       << "] " << boost::log::expressions::smessage
     )
 );

 It creates a log file before any log goes into it. I want to have that log
 file ONLY IF some data is written into it. If no log goes into it we dont
 want to see that log file.

 Please suggest a solution for it.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11719>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.