src/debug_printf.c

   1 /* libmpd (high level libmpdclient library)
   2  * Copyright (C) 2004-2009 Qball Cow <qball@sarine.nl>
   3  * Project homepage: http://gmpcwiki.sarine.nl/
   4
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <stdarg.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <time.h>
  26 #include <glib.h>
  27 #include "config.h"
  28 #include "debug_printf.h"
  29
  30 int debug_level = 0;
  31 /* Compiler does not like it when I initialize this to stdout, complaints about
  32  * not being constant. stoud is a macro..
  33  * So use this "hack"
  34  */
  35 FILE *rout = NULL;
  36 #define ERROR_BUFFER_SIZE 2048
  37 char error_buffer[ERROR_BUFFER_SIZE];
  38
  39 void debug_set_output(FILE *fp)
  40 {
  41     rout = fp;
  42 }
  43
  44 void debug_set_level(DebugLevel dl)
  45 {
  46         debug_level = (dl<0)?DEBUG_NO_OUTPUT:((dl > DEBUG_INFO)?DEBUG_INFO:dl);
  47 }
  48
  49
  50 void debug_printf_real(DebugLevel dp, const char *file,const int line,const char *function, const char *format,...)
  51 {
  52         if(debug_level >= dp)
  53         {
  54                 va_list arglist;
  55         time_t ts = time(NULL);
  56         struct tm tm;
  57         char buffer[32];
  58         FILE *out = stdout;
  59         char *temp;
  60         if(rout) out = rout;
  61         va_start(arglist,format);
  62
  63   /* Windows has no thread-safe localtime_r function, so ignore it for now */
  64 #ifndef WIN32
  65         localtime_r(&ts, &tm);
  66         strftime(buffer, 32, "%d/%m/%y %T",&tm);
  67 #else
  68         buffer[0] = '\0';
  69 #endif
  70
  71                 if(dp == DEBUG_INFO)
  72                 {
  73                         fprintf(out,"%s: INFO:    %s %s():#%d:\t",buffer,file,function,line);
  74                 }
  75                 else if(dp == DEBUG_WARNING)
  76                 {
  77                         fprintf(out,"%s: WARNING: %s %s():#%i:\t",buffer,file,function,line);
  78                 }
  79                 else
  80                 {
  81                         fprintf(out,"%s: ERROR:   %s %s():#%i:\t",buffer,file,function,line);
  82                 }
  83                 vsnprintf(error_buffer,ERROR_BUFFER_SIZE,format, arglist);
  84         temp = g_locale_from_utf8(error_buffer, -1,NULL, NULL, NULL);
  85         if(temp) {
  86             fputs(temp,out);
  87             g_free(temp);
  88         }
  89                 if(format[strlen(format)-1] != '\n')
  90                 {
  91                         fprintf(out,"\n");
  92                 }
  93                 fflush(out);
  94                 va_end(arglist);
  95         }
  96 }