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add progression bar function 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2010-06-14 22:31:04 +02:00
parent 3039467bbd
commit 257da5cac0
3 changed files with 78 additions and 0 deletions
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15
include/progress.h Normal file
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@ -0,0 +1,15 @@
#ifndef __PROGRSS_H
#define __PROGRSS_H
/* Initialize a progress bar. If max > 0 a one line progress
* bar is printed where 'max' corresponds to 100%. If max == 0
* a multi line progress bar is printed.
*/
void init_progression_bar(int max);
/* update a progress bar to a new value. If now < 0 then a
* spinner is printed.
*/
void show_progress(int now);
#endif /* __PROGRSS_H */

1
lib/Makefile
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@ -30,5 +30,6 @@ obj-y += notifier.o
obj-y += copy_file.o
obj-y += random.o
obj-y += lzo/
obj-y += show_progress.o
obj-$(CONFIG_LZO_DECOMPRESS) += decompress_unlzo.o
obj-$(CONFIG_PROCESS_ESCAPE_SEQUENCE) += process_escape_sequence.o

62
lib/show_progress.c Normal file
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@ -0,0 +1,62 @@
/*
* show_progress.c - simple progress bar functions
*
* Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program 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 program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <common.h>
#include <progress.h>
#define HASHES_PER_LINE 65
static int printed;
static int progress_max;
static int spin;
void show_progress(int now)
{
char spinchr[] = "\\|/-";
if (now < 0) {
printf("%c\b", spinchr[spin++ % (sizeof(spinchr) - 1)]);
return;
}
if (progress_max)
now = now * HASHES_PER_LINE / progress_max;
while (printed < now) {
if (!(printed % HASHES_PER_LINE) && printed)
printf("\n\t");
printf("#");
printed++;
}
}
void init_progression_bar(int max)
{
printed = 0;
progress_max = max;
spin = 0;
if (progress_max)
printf("\t[%65s]\r\t[", "");
else
printf("\t");
}