log.c

/*
 * log.c - Logging for speechd-up
 *
 * Copyright (C) 2001, 2002, 2003, 2006 Brailcom, o.p.s.
 *
 * This 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, or (at your option)
 * any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this package; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 * $Id: log.c,v 1.2 2007-02-17 23:28:45 hanke Exp $
 */

#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <assert.h>
#include <time.h>
#include "configuration.h"
#include "options.h"
#include "log.h"

void
LOG(int level, char *format, ...)
{
  assert(format != NULL);
  assert(logfile != NULL);

  if(level <= options.log_level) {
    va_list args;
    int i;
		
    va_start(args, format);
    {
	{
	/* Print timestamp */
	time_t t;
	char *tstr;
	t = time(NULL);
	tstr = (char*) strdup((char*) ctime(&t));
	if (tstr == NULL){
	    fprintf(stderr, "strdup(ctime) failed, can't log");
	    return;
	}
	/* Remove the trailing \n */
	assert(strlen(tstr)>1);
	tstr[strlen(tstr)-1] = 0;
	fprintf(logfile, "[%s] speechd: ", tstr);
	free(tstr);
      }
      for(i=1;i<level;i++){
	fprintf(logfile, " ");
      }
      vfprintf(logfile, format, args);
      fprintf(logfile, "\n");
      fflush(logfile);
    }
    va_end(args);
  }				
}