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       1                 :            : /*
       2                 :            :  * logging.c - logging facility class implementation
       3                 :            :  *
       4                 :            :  * Copyright (C) 2003, 2004, 2005 Stefan Jahn <stefan@lkcc.org>
       5                 :            :  *
       6                 :            :  * This is free software; you can redistribute it and/or modify
       7                 :            :  * it under the terms of the GNU General Public License as published by
       8                 :            :  * the Free Software Foundation; either version 2, or (at your option)
       9                 :            :  * any later version.
      10                 :            :  * 
      11                 :            :  * This software is distributed in the hope that it will be useful,
      12                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14                 :            :  * GNU General Public License for more details.
      15                 :            :  * 
      16                 :            :  * You should have received a copy of the GNU General Public License
      17                 :            :  * along with this package; see the file COPYING.  If not, write to
      18                 :            :  * the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
      19                 :            :  * Boston, MA 02110-1301, USA.  
      20                 :            :  *
      21                 :            :  * $Id$
      22                 :            :  *
      23                 :            :  */
      24                 :            : 
      25                 :            : #if HAVE_CONFIG_H
      26                 :            : # include <config.h>
      27                 :            : #endif
      28                 :            : 
      29                 :            : #include <stdio.h>
      30                 :            : #include <stdlib.h>
      31                 :            : #include <stdarg.h>
      32                 :            : 
      33                 :            : #include "logging.h"
      34                 :            : 
      35                 :            : /* This function prints the given messages format and the appropriate
      36                 :            :    arguments to a FILE stream depending on the given log level. */
      37                 :     176189 : void logprint (int level, const char * format, ...) {
      38                 :            :   FILE * f;
      39                 :            :   va_list args;
      40                 :            : 
      41         [ +  + ]:     176189 :   f = level == LOG_STATUS ? file_status : file_error;
      42         [ +  - ]:     176189 :   if (f != NULL) {
      43                 :     176189 :     va_start (args, format);
      44                 :     176189 :     vfprintf (f, format, args);
      45                 :     176189 :     va_end (args);
      46                 :     176189 :     fflush (f);
      47                 :            :   }
      48                 :     176189 : }
      49                 :            : 
      50                 :            : /* Initialization of the logging interface. */
      51                 :        107 : void loginit (void) {
      52                 :        107 :   file_error = file_status = stderr;
      53                 :        107 : }
      54                 :            : 
      55                 :            : /* Both of the log level dependent FILE streams. */
      56                 :            : FILE * file_status = NULL;
      57                 :            : FILE * file_error = NULL;
      58                 :            : 
      59                 :            : /* Last number of '*' in the progress bar. */
      60                 :            : int progressbar_last = 0;
      61                 :            : 
      62                 :            : /* Print a tiny progress-bar depending on the arguments. */
      63                 :      34696 : void logprogressbar (nr_double_t current, nr_double_t final, int points) {
      64                 :            :   int i;
      65         [ -  + ]:      34696 :   if (progressbar_enable) {
      66 [ #  # ][ #  # ]:          0 :     if (((int) (current * 100 / final)) == progressbar_last && current)
      67                 :      34696 :       return;
      68                 :          0 :     progressbar_last = (int) (current * 100 / final);
      69         [ #  # ]:          0 :     if (progressbar_gui) {
      70                 :          0 :       logprint (LOG_STATUS, "\t%02d\r", progressbar_last);
      71                 :            :     }
      72                 :            :     else {
      73                 :          0 :       logprint (LOG_STATUS, "[");
      74         [ #  # ]:          0 :       for (i = 0; i < (current  * points / final); i++)
      75                 :          0 :         logprint (LOG_STATUS, "*");
      76         [ #  # ]:          0 :       for (; i < points; i++) logprint (LOG_STATUS, " ");
      77                 :          0 :       logprint (LOG_STATUS, "] %.2f%%      \r",
      78                 :            :                 (double) (current * 100.0 / final));
      79                 :            :     }
      80                 :            :   }
      81                 :            : }
      82                 :            : 
      83                 :            : /* If non-zero then progress bars are painted... */
      84                 :            : int progressbar_enable = 0;
      85                 :            : 
      86                 :            : /* If non-zero then progress bars are painted for the GUI. */
      87                 :            : int progressbar_gui = 0;
      88                 :            : 
      89                 :            : /* Clears up the progress bar if requested. */
      90                 :        105 : void logprogressclear (int points) {
      91                 :            :   int i;
      92                 :        105 :   progressbar_last = 0;
      93 [ -  + ][ #  # ]:        105 :   if (progressbar_enable && !progressbar_gui) {
      94         [ #  # ]:          0 :     for (i = 0; i < points + 15; i++) logprint (LOG_STATUS, " ");
      95                 :          0 :     logprint (LOG_STATUS, "\r");
      96                 :            :   }
      97                 :        105 : }