1 /* vi: set sw=4 ts=4: */
3 * Monitor a pipe with a simple progress display.
5 * Copyright (C) 2003 by Rob Landley <rob@landley.net>, Joey Hess
7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
10 //usage:#define pipe_progress_trivial_usage NOUSAGE_STR
11 //usage:#define pipe_progress_full_usage ""
15 #define PIPE_PROGRESS_SIZE 4096
17 /* Read a block of data from stdin, write it to stdout.
18 * Activity is indicated by a '.' to stderr
20 int pipe_progress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
21 int pipe_progress_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
23 char buf[PIPE_PROGRESS_SIZE];
24 time_t t = time(NULL);
27 while ((len = safe_read(STDIN_FILENO, buf, PIPE_PROGRESS_SIZE)) > 0) {
28 time_t new_time = time(NULL);
31 bb_putchar_stderr('.');
33 full_write(STDOUT_FILENO, buf, len);
36 bb_putchar_stderr('\n');