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');