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/*
* progress.c - Numeric progress meter
*
* Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
* 2003, 2004, 2005 by Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*/
#include "config.h"
#include "ext2fs.h"
#include "ext2fsP.h"
#include <time.h>
static char spaces[80], backspaces[80];
static time_t last_update;
struct ext2fs_progress_ops ext2fs_numeric_progress_ops = {
.init = ext2fs_numeric_progress_init,
.update = ext2fs_numeric_progress_update,
.close = ext2fs_numeric_progress_close,
};
static int int_log10(unsigned int arg)
{
int l;
for (l=0; arg ; l++)
arg = arg / 10;
return l;
}
void ext2fs_numeric_progress_init(ext2_filsys fs,
struct ext2fs_numeric_progress_struct * progress,
const char *label, __u64 max)
{
/*
* The PRINT_PROGRESS flag turns on or off ALL
* progress-related messages, whereas the SKIP_PROGRESS
* environment variable prints the start and end messages but
* not the numeric countdown in the middle.
*/
if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
return;
memset(spaces, ' ', sizeof(spaces)-1);
spaces[sizeof(spaces)-1] = 0;
memset(backspaces, '\b', sizeof(backspaces)-1);
backspaces[sizeof(backspaces)-1] = 0;
memset(progress, 0, sizeof(*progress));
if (ext2fs_safe_getenv("E2FSPROGS_SKIP_PROGRESS"))
progress->skip_progress++;
/*
* Figure out how many digits we need
*/
progress->max = max;
progress->log_max = int_log10(max);
if (label) {
fputs(label, stdout);
fflush(stdout);
}
last_update = 0;
}
void ext2fs_numeric_progress_update(ext2_filsys fs,
struct ext2fs_numeric_progress_struct * progress,
__u64 val)
{
time_t now;
if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
return;
if (progress->skip_progress)
return;
now = time(0);
if (now == last_update)
return;
last_update = now;
printf("%*llu/%*llu", progress->log_max, (unsigned long long) val,
progress->log_max, (unsigned long long) progress->max);
fprintf(stdout, "%.*s", (2*progress->log_max)+1, backspaces);
}
void ext2fs_numeric_progress_close(ext2_filsys fs,
struct ext2fs_numeric_progress_struct * progress,
const char *message)
{
if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
return;
fprintf(stdout, "%.*s", (2*progress->log_max)+1, spaces);
fprintf(stdout, "%.*s", (2*progress->log_max)+1, backspaces);
if (message)
fputs(message, stdout);
}
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