busybox/debianutils/pipe_progress.c
Denys Vlasenko 19ced5c425 pipe_progress: make it independent of printf machinery
function                                             old     new   delta
bb_putchar_stderr                                      -      24     +24
ParseField                                           494     471     -23
progress_meter                                       212     188     -24
xargs_main                                           888     842     -46
pipe_progress_main                                   151     105     -46
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/4 up/down: 24/-139)          Total: -115 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-06-06 21:53:09 +02:00

36 lines
860 B
C

/* vi: set sw=4 ts=4: */
/*
* Monitor a pipe with a simple progress display.
*
* Copyright (C) 2003 by Rob Landley <rob@landley.net>, Joey Hess
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include "libbb.h"
#define PIPE_PROGRESS_SIZE 4096
/* Read a block of data from stdin, write it to stdout.
* Activity is indicated by a '.' to stderr
*/
int pipe_progress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int pipe_progress_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
{
char buf[PIPE_PROGRESS_SIZE];
time_t t = time(NULL);
int len;
while ((len = safe_read(STDIN_FILENO, buf, PIPE_PROGRESS_SIZE)) > 0) {
time_t new_time = time(NULL);
if (new_time != t) {
t = new_time;
bb_putchar_stderr('.');
}
full_write(STDOUT_FILENO, buf, len);
}
bb_putchar_stderr('\n');
return 0;
}