source: branches/3.2/mindi-busybox/debianutils/pipe_progress.c

Last change on this file was 3232, checked in by bruno, 5 years ago
  • Update mindi-busybox to 1.21.1
File size: 954 bytes
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Monitor a pipe with a simple progress display.
4 *
5 * Copyright (C) 2003 by Rob Landley <rob@landley.net>, Joey Hess
6 *
7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
8 */
9
10//usage:#define pipe_progress_trivial_usage NOUSAGE_STR
11//usage:#define pipe_progress_full_usage ""
12
13#include "libbb.h"
14
15#define PIPE_PROGRESS_SIZE 4096
16
17/* Read a block of data from stdin, write it to stdout.
18 * Activity is indicated by a '.' to stderr
19 */
20int pipe_progress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
21int pipe_progress_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
22{
23    char buf[PIPE_PROGRESS_SIZE];
24    time_t t = time(NULL);
25    int len;
26
27    while ((len = safe_read(STDIN_FILENO, buf, PIPE_PROGRESS_SIZE)) > 0) {
28        time_t new_time = time(NULL);
29        if (new_time != t) {
30            t = new_time;
31            bb_putchar_stderr('.');
32        }
33        full_write(STDOUT_FILENO, buf, len);
34    }
35
36    bb_putchar_stderr('\n');
37
38    return 0;
39}
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