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barebox/commands/sleep.c

51 lines
1.2 KiB
C

/*
* sleep.c - delay execution
*
* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <common.h>
#include <command.h>
#include <complete.h>
#include <clock.h>
static int do_sleep(int argc, char *argv[])
{
uint64_t start;
ulong delay;
if (argc != 2)
return COMMAND_ERROR_USAGE;
delay = simple_strtoul(argv[1], NULL, 10);
start = get_time_ns();
while (!is_timeout(start, delay * SECOND)) {
if (ctrlc())
return 1;
}
return 0;
}
BAREBOX_CMD_START(sleep)
.cmd = do_sleep,
BAREBOX_CMD_DESC("delay execution for n seconds")
BAREBOX_CMD_OPTS("SECONDS")
BAREBOX_CMD_GROUP(CMD_GRP_SCRIPT)
BAREBOX_CMD_COMPLETE(command_var_complete)
BAREBOX_CMD_END