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174 lines
4.3 KiB
Objective-C
174 lines
4.3 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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# $FreeBSD$
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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 metadata class interface.
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INTERFACE g_raid_md;
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HEADER {
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#define G_RAID_MD_TASTE_FAIL -1
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#define G_RAID_MD_TASTE_EXISTING 0
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#define G_RAID_MD_TASTE_NEW 1
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};
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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_md_create_default(struct g_raid_md_object *md,
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struct g_class *mp, struct g_geom **gp)
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{
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return (G_RAID_MD_TASTE_FAIL);
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}
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static int
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g_raid_md_create_req_default(struct g_raid_md_object *md,
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struct g_class *mp, struct gctl_req *req, struct g_geom **gp)
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{
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return (G_RAID_MD_CREATE(md, mp, gp));
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}
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static int
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g_raid_md_ctl_default(struct g_raid_md_object *md,
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struct gctl_req *req)
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{
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return (-1);
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}
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static int
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g_raid_md_volume_event_default(struct g_raid_md_object *md,
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struct g_raid_volume *vol, u_int event)
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{
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return (-1);
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}
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static int
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g_raid_md_free_disk_default(struct g_raid_md_object *md,
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struct g_raid_volume *vol)
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{
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return (0);
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}
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static int
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g_raid_md_free_volume_default(struct g_raid_md_object *md,
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struct g_raid_volume *vol)
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{
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return (0);
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}
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};
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# create() - create new node from scratch.
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METHOD int create {
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struct g_raid_md_object *md;
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struct g_class *mp;
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struct g_geom **gp;
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} DEFAULT g_raid_md_create_default;
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# create_req() - create new node from scratch, with request argument.
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METHOD int create_req {
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struct g_raid_md_object *md;
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struct g_class *mp;
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struct gctl_req *req;
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struct g_geom **gp;
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} DEFAULT g_raid_md_create_req_default;
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# taste() - taste disk and, if needed, create new node.
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METHOD int taste {
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struct g_raid_md_object *md;
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struct g_class *mp;
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struct g_consumer *cp;
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struct g_geom **gp;
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};
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# ctl() - user-level control commands handling method.
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METHOD int ctl {
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struct g_raid_md_object *md;
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struct gctl_req *req;
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} DEFAULT g_raid_md_ctl_default;
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# event() - events handling method.
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METHOD int event {
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struct g_raid_md_object *md;
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struct g_raid_disk *disk;
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u_int event;
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};
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# volume_event() - events handling method.
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METHOD int volume_event {
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struct g_raid_md_object *md;
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struct g_raid_volume *vol;
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u_int event;
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} DEFAULT g_raid_md_volume_event_default;
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# write() - metadata write method.
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METHOD int write {
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struct g_raid_md_object *md;
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struct g_raid_volume *vol;
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struct g_raid_subdisk *sd;
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struct g_raid_disk *disk;
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};
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# fail_disk() - mark disk as failed and remove it from use.
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METHOD int fail_disk {
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struct g_raid_md_object *md;
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struct g_raid_subdisk *sd;
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struct g_raid_disk *disk;
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};
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# free_disk() - disk destructor.
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METHOD int free_disk {
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struct g_raid_md_object *md;
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struct g_raid_disk *disk;
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} DEFAULT g_raid_md_free_disk_default;
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# free_volume() - volume destructor.
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METHOD int free_volume {
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struct g_raid_md_object *md;
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struct g_raid_volume *vol;
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} DEFAULT g_raid_md_free_volume_default;
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# free() - destructor.
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METHOD int free {
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struct g_raid_md_object *md;
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};
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