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/*
* Sleep Shell Command Implmentation
*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <time.h>
#include <rtems.h>
#include <rtems/shell.h>
#include <rtems/stringto.h>
#include "internal.h"
int rtems_shell_main_sleep(
int argc,
char *argv[]
)
{
struct timespec delay;
unsigned long tmp;
if ((argc != 2) && (argc != 3)) {
fprintf( stderr, "%s: Usage seconds [nanoseconds]\n", argv[0] );
return -1;
}
/*
* Convert the seconds argument to a number
*/
if ( rtems_string_to_unsigned_long(argv[1], &tmp, NULL, 0) ) {
printf( "Seconds argument (%s) is not a number\n", argv[1] );
return -1;
}
delay.tv_sec = (time_t) tmp;
/*
* If the user specified a nanoseconds argument, convert it
*/
delay.tv_nsec = 0;
if (argc == 3) {
if ( rtems_string_to_unsigned_long(argv[2], &tmp, NULL, 0) ) {
printf( "Seconds argument (%s) is not a number\n", argv[1] );
return -1;
}
delay.tv_nsec = tmp;
}
/*
* Now sleep as requested.
*/
nanosleep( &delay, NULL );
return 0;
}
rtems_shell_cmd_t rtems_shell_SLEEP_Command = {
"sleep", /* name */
"sleep seconds [nanoseconds]", /* usage */
"misc", /* topic */
rtems_shell_main_sleep, /* command */
NULL, /* alias */
NULL /* next */
};
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