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117 lines
3.1 KiB
Objective-C
117 lines
3.1 KiB
Objective-C
#-
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# Copyright (c) 2010 Alexander Motin
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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#include <sys/param.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <sys/sbuf.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/systm.h>
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#include <geom/geom.h>
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#include <geom/raid/g_raid.h>
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# The G_RAID transformation class interface.
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INTERFACE g_raid_tr;
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# Default implementations of methods.
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CODE {
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static int
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g_raid_tr_locked_default(struct g_raid_tr_object *tr, void *argp)
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{
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return (0);
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}
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};
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HEADER {
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#define G_RAID_TR_TASTE_FAIL -1
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#define G_RAID_TR_TASTE_SUCCEED 0
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};
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# taste() - volume taste method.
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METHOD int taste {
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struct g_raid_tr_object *tr;
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struct g_raid_volume *volume;
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};
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# event() - events handling method.
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METHOD int event {
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struct g_raid_tr_object *tr;
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struct g_raid_subdisk *sd;
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u_int event;
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};
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# start() - begin operation.
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METHOD int start {
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struct g_raid_tr_object *tr;
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};
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# stop() - stop operation.
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METHOD int stop {
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struct g_raid_tr_object *tr;
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};
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# iorequest() - manage forward transformation and generates requests to disks.
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METHOD void iostart {
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struct g_raid_tr_object *tr;
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struct bio *bp;
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};
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# iodone() - manages backward transformation and reports completion status.
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METHOD void iodone {
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struct g_raid_tr_object *tr;
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struct g_raid_subdisk *sd;
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struct bio *bp;
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};
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# kerneldump() - optimized for rebustness (simplified) kernel dumping routine.
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METHOD int kerneldump {
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struct g_raid_tr_object *tr;
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void *virtual;
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off_t offset;
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size_t length;
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} DEFAULT g_raid_tr_kerneldump_common;
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# locked() - callback method for lock().
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METHOD int locked {
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struct g_raid_tr_object *tr;
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void *argp;
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} DEFAULT g_raid_tr_locked_default;
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# free() - destructor.
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METHOD int free {
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struct g_raid_tr_object *tr;
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};
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# idle() - callback when the volume is idle for a while and the TR wants
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# to schedule some work for that idle period.
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METHOD int idle {
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struct g_raid_tr_object *tr;
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};
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