lib/show_progress.c

   1 /*
   2  * show_progress.c - simple progress bar functions
   3  *
   4  * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2
  11  * as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <common.h>
  24 #include <progress.h>
  25
  26 #define HASHES_PER_LINE 65
  27
  28 static int printed;
  29 static int progress_max;
  30 static int spin;
  31
  32 void show_progress(int now)
  33 {
  34         char spinchr[] = "\\|/-";
  35
  36         if (now < 0) {
  37                 printf("%c\b", spinchr[spin++ % (sizeof(spinchr) - 1)]);
  38                 return;
  39         }
  40
  41         if (progress_max)
  42                 now = now * HASHES_PER_LINE / progress_max;
  43
  44         while (printed < now) {
  45                 if (!(printed % HASHES_PER_LINE) && printed)
  46                         printf("\n\t");
  47                 printf("#");
  48                 printed++;
  49         }
  50 }
  51
  52 void init_progression_bar(int max)
  53 {
  54         printed = 0;
  55         progress_max = max;
  56         spin = 0;
  57         if (progress_max)
  58                 printf("\t[%65s]\r\t[", "");
  59         else
  60                 printf("\t");
  61 }
  62