iPXE
null_reboot.c
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1 /*
2  * Copyright (C) 2013 Michael Brown <mbrown@fensystems.co.uk>.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * License, or any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301, USA.
18  *
19  * You can also choose to distribute this program under the terms of
20  * the Unmodified Binary Distribution Licence (as given in the file
21  * COPYING.UBDL), provided that you have satisfied its requirements.
22  */
23 
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25 
26 /**
27  * @file
28  *
29  * Null reboot mechanism
30  *
31  */
32 
33 #include <stdio.h>
34 #include <errno.h>
35 #include <ipxe/reboot.h>
36 
37 /**
38  * Reboot system
39  *
40  * @v warm Perform a warm reboot
41  */
42 static void null_reboot ( int warm __unused ) {
43 
44  printf ( "Cannot reboot; not implemented\n" );
45  while ( 1 ) {}
46 }
47 
48 /**
49  * Power off system
50  *
51  * @ret rc Return status code
52  */
53 static int null_poweroff ( void ) {
54 
55  return -ENOTSUP;
56 }
57 
int printf(const char *fmt,...)
Write a formatted string to the console.
Definition: vsprintf.c:464
Error codes.
FILE_LICENCE(GPL2_OR_LATER_OR_UBDL)
#define ENOTSUP
Operation not supported.
Definition: errno.h:589
iPXE reboot API
int poweroff(void)
Power off system.
PROVIDE_REBOOT(null, reboot, null_reboot)
static void null_reboot(int warm __unused)
Reboot system.
Definition: null_reboot.c:42
static int null_poweroff(void)
Power off system.
Definition: null_reboot.c:53
#define __unused
Declare a variable or data structure as unused.
Definition: compiler.h:573
void reboot(int warm)
Reboot system.