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