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Diffstat (limited to 'include/spl/sys/callo.h')
| -rw-r--r-- | include/spl/sys/callo.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/spl/sys/callo.h b/include/spl/sys/callo.h new file mode 100644 index 000000000..c43ac92e7 --- /dev/null +++ b/include/spl/sys/callo.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2007-2013 Lawrence Livermore National Security, LLC. + * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). + * Written by Brian Behlendorf <[email protected]>. + * UCRL-CODE-235197 + * + * This file is part of the SPL, Solaris Porting Layer. + * For details, see <http://zfsonlinux.org/>. + * + * The SPL is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * The SPL is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with the SPL. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SPL_CALLO_H +#define _SPL_CALLO_H + +/* + * Callout flags: + * + * CALLOUT_FLAG_ROUNDUP + * Roundup the expiration time to the next resolution boundary. + * If this flag is not specified, the expiration time is rounded down. + * CALLOUT_FLAG_ABSOLUTE + * Normally, the expiration passed to the timeout API functions is an + * expiration interval. If this flag is specified, then it is + * interpreted as the expiration time itself. + * CALLOUT_FLAG_HRESTIME + * Normally, callouts are not affected by changes to system time + * (hrestime). This flag is used to create a callout that is affected + * by system time. If system time changes, these timers must be + * handled in a special way (see callout.c). These are used by condition + * variables and LWP timers that need this behavior. + * CALLOUT_FLAG_32BIT + * Legacy interfaces timeout() and realtime_timeout() pass this flag + * to timeout_generic() to indicate that a 32-bit ID should be allocated. + */ +#define CALLOUT_FLAG_ROUNDUP 0x1 +#define CALLOUT_FLAG_ABSOLUTE 0x2 +#define CALLOUT_FLAG_HRESTIME 0x4 +#define CALLOUT_FLAG_32BIT 0x8 + +#endif /* _SPL_CALLB_H */ |