/*
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* sim_progress.c --- simple progress meter
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*
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* Copyright (C) 1997, 1998 by Theodore Ts'o and
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* PowerQuest, Inc.
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*
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* Copyright (C) 1999, 2000 by Theodore Ts'o
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Public
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* License.
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* %End-Header%
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*/
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#include "config.h"
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#include "resize2fs.h"
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struct ext2_sim_progress {
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FILE *f;
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char *label;
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int labelwidth;
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int barwidth;
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__u32 maxdone;
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__u32 current;
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int shown;
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int flags;
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};
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static errcode_t ext2fs_progress_display(ext2_sim_progmeter prog)
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{
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int i, width;
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fputs(prog->label, prog->f);
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width = prog->labelwidth - strlen(prog->label);
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while (width-- > 0)
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putc(' ', prog->f);
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if (prog->labelwidth + prog->barwidth > 80) {
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fputs("\n", prog->f);
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for (width = prog->labelwidth; width > 0; width--)
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putc(' ', prog->f);
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}
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for (i=0; i < prog->barwidth; i++)
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putc('-', prog->f);
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for (i=0; i < prog->barwidth; i++)
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putc('\b', prog->f);
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fflush(prog->f);
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return 0;
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}
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void ext2fs_progress_update(ext2_sim_progmeter prog, __u32 current)
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{
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int old_level, level, num, i;
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level = prog->barwidth * current / prog->maxdone;
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old_level = prog->barwidth * prog->current / prog->maxdone;
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prog->current = current;
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num = level - old_level;
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if (num == 0)
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return;
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if (num > 0) {
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for (i=0; i < num; i++)
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putc('X', prog->f);
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} else {
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num = -num;
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for (i=0; i < num; i++)
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putc('\b', prog->f);
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for (i=0; i < num; i++)
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putc('-', prog->f);
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for (i=0; i < num; i++)
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putc('\b', prog->f);
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}
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fflush(prog->f);
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}
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errcode_t ext2fs_progress_init(ext2_sim_progmeter *ret_prog,
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const char *label,
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int labelwidth, int barwidth,
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__u32 maxdone, int flags)
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{
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ext2_sim_progmeter prog;
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errcode_t retval;
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retval = ext2fs_get_mem(sizeof(struct ext2_sim_progress), &prog);
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if (retval)
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return retval;
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memset(prog, 0, sizeof(struct ext2_sim_progress));
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retval = ext2fs_get_mem(strlen(label)+1, &prog->label);
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if (retval) {
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free(prog);
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return retval;
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}
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strcpy(prog->label, label);
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prog->labelwidth = labelwidth;
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prog->barwidth = barwidth;
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prog->flags = flags;
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prog->maxdone = maxdone;
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prog->current = 0;
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prog->shown = 0;
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prog->f = stdout;
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*ret_prog = prog;
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return ext2fs_progress_display(prog);
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}
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void ext2fs_progress_close(ext2_sim_progmeter prog)
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{
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if (prog->label)
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ext2fs_free_mem(&prog->label);
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ext2fs_free_mem(&prog);
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printf("\n");
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return;
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}
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