1/*
2 *  Copyright (C) 2007-2013 Lawrence Livermore National Security, LLC.
3 *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
4 *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
5 *  UCRL-CODE-235197
6 *
7 *  This file is part of the SPL, Solaris Porting Layer.
8 *
9 *  The SPL is free software; you can redistribute it and/or modify it
10 *  under the terms of the GNU General Public License as published by the
11 *  Free Software Foundation; either version 2 of the License, or (at your
12 *  option) any later version.
13 *
14 *  The SPL is distributed in the hope that it will be useful, but WITHOUT
15 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
17 *  for more details.
18 *
19 *  You should have received a copy of the GNU General Public License along
20 *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
21 */
22
23#ifndef _SPL_CALLO_H
24#define	_SPL_CALLO_H
25
26/*
27 * Callout flags:
28 *
29 * CALLOUT_FLAG_ROUNDUP
30 *      Roundup the expiration time to the next resolution boundary.
31 *      If this flag is not specified, the expiration time is rounded down.
32 * CALLOUT_FLAG_ABSOLUTE
33 *      Normally, the expiration passed to the timeout API functions is an
34 *      expiration interval. If this flag is specified, then it is
35 *      interpreted as the expiration time itself.
36 * CALLOUT_FLAG_HRESTIME
37 *      Normally, callouts are not affected by changes to system time
38 *      (hrestime). This flag is used to create a callout that is affected
39 *      by system time. If system time changes, these timers must be
40 *      handled in a special way (see callout.c). These are used by condition
41 *      variables and LWP timers that need this behavior.
42 * CALLOUT_FLAG_32BIT
43 *      Legacy interfaces timeout() and realtime_timeout() pass this flag
44 *      to timeout_generic() to indicate that a 32-bit ID should be allocated.
45 */
46#define	CALLOUT_FLAG_ROUNDUP		0x1
47#define	CALLOUT_FLAG_ABSOLUTE		0x2
48#define	CALLOUT_FLAG_HRESTIME		0x4
49#define	CALLOUT_FLAG_32BIT		0x8
50
51#endif  /* _SPL_CALLB_H */
52