mirror of
https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
synced 2024-11-24 18:43:53 +08:00
c4e3d3f374
all now take a 'void *' instead of a 'void **' in order to avoid pointer aliasing problems with GCC 3.x.
118 lines
2.4 KiB
C
118 lines
2.4 KiB
C
/*
|
|
* sim_progress.c --- simple progress meter
|
|
*
|
|
* Copyright (C) 1997, 1998 by Theodore Ts'o and
|
|
* PowerQuest, Inc.
|
|
*
|
|
* Copyright (C) 1999, 2000 by Theosore Ts'o
|
|
*
|
|
* %Begin-Header%
|
|
* This file may be redistributed under the terms of the GNU Public
|
|
* License.
|
|
* %End-Header%
|
|
*/
|
|
|
|
#include "resize2fs.h"
|
|
|
|
struct ext2_sim_progress {
|
|
FILE *f;
|
|
char *label;
|
|
int labelwidth;
|
|
int barwidth;
|
|
__u32 maxdone;
|
|
__u32 current;
|
|
int shown;
|
|
int flags;
|
|
};
|
|
|
|
static errcode_t ext2fs_progress_display(ext2_sim_progmeter prog)
|
|
{
|
|
int i, width;
|
|
|
|
fputs(prog->label, prog->f);
|
|
width = prog->labelwidth - strlen(prog->label);
|
|
while (width-- > 0)
|
|
putc(' ', prog->f);
|
|
if (prog->labelwidth + prog->barwidth > 80) {
|
|
fputs("\n", prog->f);
|
|
for (width = prog->labelwidth; width > 0; width--)
|
|
putc(' ', prog->f);
|
|
}
|
|
for (i=0; i < prog->barwidth; i++)
|
|
putc('-', prog->f);
|
|
for (i=0; i < prog->barwidth; i++)
|
|
putc('\b', prog->f);
|
|
fflush(prog->f);
|
|
return 0;
|
|
}
|
|
|
|
|
|
void ext2fs_progress_update(ext2_sim_progmeter prog, __u32 current)
|
|
{
|
|
int old_level, level, num, i;
|
|
|
|
level = prog->barwidth * current / prog->maxdone;
|
|
old_level = prog->barwidth * prog->current / prog->maxdone;
|
|
prog->current = current;
|
|
|
|
num = level - old_level;
|
|
if (num == 0)
|
|
return;
|
|
|
|
if (num > 0) {
|
|
for (i=0; i < num; i++)
|
|
putc('X', prog->f);
|
|
} else {
|
|
num = -num;
|
|
for (i=0; i < num; i++)
|
|
putc('\b', prog->f);
|
|
for (i=0; i < num; i++)
|
|
putc('-', prog->f);
|
|
for (i=0; i < num; i++)
|
|
putc('\b', prog->f);
|
|
}
|
|
fflush(prog->f);
|
|
}
|
|
|
|
errcode_t ext2fs_progress_init(ext2_sim_progmeter *ret_prog,
|
|
const char *label,
|
|
int labelwidth, int barwidth,
|
|
__u32 maxdone, int flags)
|
|
{
|
|
ext2_sim_progmeter prog;
|
|
errcode_t retval;
|
|
|
|
retval = ext2fs_get_mem(sizeof(struct ext2_sim_progress), &prog);
|
|
if (!prog)
|
|
return retval;
|
|
memset(prog, 0, sizeof(struct ext2_sim_progress));
|
|
|
|
retval = ext2fs_get_mem(strlen(label)+1, (void **) &prog->label);
|
|
if (retval) {
|
|
free(prog);
|
|
return retval;
|
|
}
|
|
strcpy(prog->label, label);
|
|
prog->labelwidth = labelwidth;
|
|
prog->barwidth = barwidth;
|
|
prog->flags = flags;
|
|
prog->maxdone = maxdone;
|
|
prog->current = 0;
|
|
prog->shown = 0;
|
|
prog->f = stdout;
|
|
|
|
*ret_prog = prog;
|
|
|
|
return ext2fs_progress_display(prog);
|
|
}
|
|
|
|
void ext2fs_progress_close(ext2_sim_progmeter prog)
|
|
{
|
|
|
|
if (prog->label)
|
|
ext2fs_free_mem(&prog->label);
|
|
ext2fs_free_mem(&prog);
|
|
printf("\n");
|
|
return;
|
|
}
|