mirror of
https://git.busybox.net/busybox.git
synced 2024-11-27 07:33:26 +08:00
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* usleep implementation for busybox
|
|
*
|
|
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
|
*/
|
|
//config:config USLEEP
|
|
//config: bool "usleep"
|
|
//config: default y
|
|
//config: help
|
|
//config: usleep is used to pause for a specified number of microseconds.
|
|
|
|
//applet:IF_USLEEP(APPLET_NOFORK(usleep, usleep, BB_DIR_BIN, BB_SUID_DROP, usleep))
|
|
|
|
//kbuild:lib-$(CONFIG_USLEEP) += usleep.o
|
|
|
|
/* BB_AUDIT SUSv3 N/A -- Apparently a busybox extension. */
|
|
|
|
//usage:#define usleep_trivial_usage
|
|
//usage: "N"
|
|
//usage:#define usleep_full_usage "\n\n"
|
|
//usage: "Pause for N microseconds"
|
|
//usage:
|
|
//usage:#define usleep_example_usage
|
|
//usage: "$ usleep 1000000\n"
|
|
//usage: "[pauses for 1 second]\n"
|
|
|
|
#include "libbb.h"
|
|
|
|
/* This is a NOFORK applet. Be very careful! */
|
|
|
|
int usleep_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int usleep_main(int argc UNUSED_PARAM, char **argv)
|
|
{
|
|
if (!argv[1]) {
|
|
bb_show_usage();
|
|
}
|
|
|
|
usleep(xatou(argv[1]));
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|