53 lines
2.3 KiB
C
53 lines
2.3 KiB
C
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/*****************************************************************************\
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* Copyright (C) 2007-2013 Lawrence Livermore National Security, LLC.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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* For details, see <http://zfsonlinux.org/>.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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\*****************************************************************************/
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#ifndef _SPL_CALLO_H
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#define _SPL_CALLO_H
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/*
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* Callout flags:
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*
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* CALLOUT_FLAG_ROUNDUP
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* Roundup the expiration time to the next resolution boundary.
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* If this flag is not specified, the expiration time is rounded down.
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* CALLOUT_FLAG_ABSOLUTE
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* Normally, the expiration passed to the timeout API functions is an
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* expiration interval. If this flag is specified, then it is
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* interpreted as the expiration time itself.
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* CALLOUT_FLAG_HRESTIME
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* Normally, callouts are not affected by changes to system time
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* (hrestime). This flag is used to create a callout that is affected
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* by system time. If system time changes, these timers must be
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* handled in a special way (see callout.c). These are used by condition
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* variables and LWP timers that need this behavior.
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* CALLOUT_FLAG_32BIT
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* Legacy interfaces timeout() and realtime_timeout() pass this flag
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* to timeout_generic() to indicate that a 32-bit ID should be allocated.
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*/
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#define CALLOUT_FLAG_ROUNDUP 0x1
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#define CALLOUT_FLAG_ABSOLUTE 0x2
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#define CALLOUT_FLAG_HRESTIME 0x4
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#define CALLOUT_FLAG_32BIT 0x8
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#endif /* _SPL_CALLB_H */
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