busybox/debianutils/pipe_progress.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)
{
	RESERVE_CONFIG_BUFFER(buf, PIPE_PROGRESS_SIZE);
	time_t t = time(NULL);
	size_t len;

	while ((len = fread(buf, 1, PIPE_PROGRESS_SIZE, stdin)) > 0) {
		time_t new_time = time(NULL);
		if (new_time != t) {
			t = new_time;
			fputc('.', stderr);
		}
		fwrite(buf, len, 1, stdout);
	}

	fputc('\n', stderr);

	if (ENABLE_FEATURE_CLEAN_UP)
		RELEASE_CONFIG_BUFFER(buf);

	return 0;
}
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 tarball for details.
8	*/
9
10	#include "libbb.h"
11
12	#define PIPE_PROGRESS_SIZE 4096
13
14	/* Read a block of data from stdin, write it to stdout.
15	* Activity is indicated by a '.' to stderr
16	*/
17	int pipe_progress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
18	int pipe_progress_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
19	{
20	RESERVE_CONFIG_BUFFER(buf, PIPE_PROGRESS_SIZE);
21	time_t t = time(NULL);
22	size_t len;
23
24	while ((len = fread(buf, 1, PIPE_PROGRESS_SIZE, stdin)) > 0) {
25	time_t new_time = time(NULL);
26	if (new_time != t) {
27	t = new_time;
28	fputc('.', stderr);
29	}
30	fwrite(buf, len, 1, stdout);
31	}
32
33	fputc('\n', stderr);
34
35	if (ENABLE_FEATURE_CLEAN_UP)
36	RELEASE_CONFIG_BUFFER(buf);
37
38	return 0;
39	}