busybox/coreutils/usleep.c
Denys Vlasenko 4eed2c6c50 Update menuconfig items with approximate applet sizes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-18 22:01:24 +02:00

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 (1.1 kb)"
//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;
}