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87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
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/*
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* progress.c - Numeric progress meter
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*
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* Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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* 2003, 2004, 2005 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 "ext2fs.h"
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#include "ext2fsP.h"
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static char spaces[80], backspaces[80];
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static int int_log10(unsigned int arg)
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{
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int l;
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for (l=0; arg ; l++)
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arg = arg / 10;
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return l;
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}
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void ext2fs_numeric_progress_init(ext2_filsys fs,
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struct ext2fs_numeric_progress_struct * progress,
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const char *label, __u64 max)
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{
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/*
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* The PRINT_PROGRESS flag turns on or off ALL
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* progress-related messages, whereas the SKIP_PROGRESS
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* environment variable prints the start and end messages but
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* not the numeric countdown in the middle.
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*/
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if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
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return;
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memset(spaces, ' ', sizeof(spaces)-1);
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spaces[sizeof(spaces)-1] = 0;
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memset(backspaces, '\b', sizeof(backspaces)-1);
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spaces[sizeof(backspaces)-1] = 0;
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progress->skip_progress = 0;
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if (getenv("E2FSPROGS_SKIP_PROGRESS"))
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progress->skip_progress++;
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memset(progress, 0, sizeof(*progress));
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/*
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* Figure out how many digits we need
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*/
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progress->max = max;
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progress->log_max = int_log10(max);
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if (label) {
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fputs(label, stdout);
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fflush(stdout);
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}
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}
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void ext2fs_numeric_progress_update(ext2_filsys fs,
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struct ext2fs_numeric_progress_struct * progress,
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__u64 val)
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{
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if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
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return;
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if (progress->skip_progress)
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return;
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fprintf(stdout, "%*llu/%*llu", progress->log_max, val,
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progress->log_max, progress->max);
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fprintf(stdout, "%.*s", (2*progress->log_max)+1, backspaces);
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}
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void ext2fs_numeric_progress_close(ext2_filsys fs,
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struct ext2fs_numeric_progress_struct * progress,
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const char *message)
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{
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if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
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return;
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fprintf(stdout, "%.*s", (2*progress->log_max)+1, spaces);
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fprintf(stdout, "%.*s", (2*progress->log_max)+1, backspaces);
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if (message)
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fputs(message, stdout);
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}
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