Mercurial > hg > toybox

annotate toys/other/swapon.c @ 684:4d9fa8b8a300

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use stridx.
author Rob Landley <rob@landley.net>
date Fri, 02 Nov 2012 09:50:09 -0500
parents 7e846e281e38
children 786841fdb1e0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
482
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
1 /* vi: set sw=4 ts=4:
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
2 *
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
3 * swapon.c - Enable region for swapping
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
4 *
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
5 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
6
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
7 USE_SWAPON(NEWTOY(swapon, "<1>1p#<0>32767", TOYFLAG_BIN|TOYFLAG_NEEDROOT))
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
8
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
9 config SWAPON
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
10 bool "swapon"
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
11 default y
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
12 help
483
26db0cd433f3 Minor tweaks.
Rob Landley <rob@landley.net>
parents: 482
diff changeset
13 usage: swapon [-p priority] filename
482
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
14
483
26db0cd433f3 Minor tweaks.
Rob Landley <rob@landley.net>
parents: 482
diff changeset
15 Enable swapping on a given device/file.
482
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
16 */
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
17
674
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 656
diff changeset
18 #define FOR_swapon
482
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
19 #include "toys.h"
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
20
674
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 656
diff changeset
21 GLOBALS(
482
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
22 long priority;
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
23 )
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
24
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
25 void swapon_main(void)
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
26 {
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
27 int flags = 0;
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
28
674
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 656
diff changeset
29 if (toys.optflags)
483
26db0cd433f3 Minor tweaks.
Rob Landley <rob@landley.net>
parents: 482
diff changeset
30 flags = SWAP_FLAG_PREFER | (TT.priority << SWAP_FLAG_PRIO_SHIFT);
482
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
31
483
26db0cd433f3 Minor tweaks.
Rob Landley <rob@landley.net>
parents: 482
diff changeset
32 if (swapon(*toys.optargs, flags))
26db0cd433f3 Minor tweaks.
Rob Landley <rob@landley.net>
parents: 482
diff changeset
33 perror_exit("Couldn't swapon '%s'", *toys.optargs);
482
b4a9fd8773d6 Adding swapon and swapoff
Elie De Brauwer <eliedebrauwer@gmail.com>
parents:
diff changeset
34 }