program_wide_logger.cpp

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#ifndef PROGRAM_WIDE_LOGGER_IMPLEMENTATION_FILE
#define PROGRAM_WIDE_LOGGER_IMPLEMENTATION_FILE

/*****************************************************************************\
*                                                                             *
*  Name   : program_wide_logger                                               *
*  Author : Chris Koeritz                                                     *
*                                                                             *
*******************************************************************************
* Copyright (c) 1994-$now By Author.  This program is free software; you can  *
* redistribute it and/or modify it under the terms of the GNU General Public  *
* License as published by the Free Software Foundation; either version 2 of   *
* the License or (at your option) any later version.  This is online at:      *
*     http://www.fsf.org/copyleft/gpl.html                                    *
* Please send any updates to: fred@gruntose.com                               *
\*****************************************************************************/

#ifndef OMIT_PROGRAM_WIDE_LOGGER
  #include "console_logger.h"
  #include "file_logger.h"
  #include "locked_logger.h"
  #include "null_logger.h"
#endif

#include <basis/callstack_tracker.h>
#include <basis/function.h>
#include <basis/log_base.h>
#include <basis/program_wide_logger.h>
#include <data_struct/static_memory_gremlin.h>
#include <opsystem/critical_events.h>

#include <stdio.h>

//#define DEBUG_PROGRAM_WIDE_LOGGER
  // uncomment for additional checks and noises.

locked_logger BASIS_EXTERN &real_program_wide_logger()
{
  SAFE_STATIC_IMPLEMENTATION(locked_logger, , __LINE__);
}

#ifndef OMIT_PROGRAM_WIDE_LOGGER
// provides the more generic version of the real logger.
log_base BASIS_EXTERN &program_wide_logger()
{
  if (!real_program_wide_logger().established()) {
    SET_DEFAULT_NULL_LOGGER;
    critical_events::write_to_critical_events((utility::timestamp(true, true)
        + "the program-wide logger isn't set!").s());
  }
  return real_program_wide_logger(); 
}

log_base BASIS_EXTERN *retask_program_wide_logger
    (log_base *new_logger)
{
  return real_program_wide_logger().swap(new_logger);
}
#endif

#endif //PROGRAM_WIDE_LOGGER_IMPLEMENTATION_FILE

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