geom_int.h revision 110523
1228177Skib/*- 2228177Skib * Copyright (c) 2002 Poul-Henning Kamp 3228177Skib * Copyright (c) 2002 Networks Associates Technology, Inc. 4228177Skib * All rights reserved. 5228177Skib * 6228177Skib * This software was developed for the FreeBSD Project by Poul-Henning Kamp 7228177Skib * and NAI Labs, the Security Research Division of Network Associates, Inc. 8228177Skib * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 9228177Skib * DARPA CHATS research program. 10228177Skib * 11228177Skib * Redistribution and use in source and binary forms, with or without 12228177Skib * modification, are permitted provided that the following conditions 13228177Skib * are met: 14228177Skib * 1. Redistributions of source code must retain the above copyright 15228177Skib * notice, this list of conditions and the following disclaimer. 16228177Skib * 2. Redistributions in binary form must reproduce the above copyright 17228177Skib * notice, this list of conditions and the following disclaimer in the 18228177Skib * documentation and/or other materials provided with the distribution. 19228177Skib * 3. The names of the authors may not be used to endorse or promote 20228177Skib * products derived from this software without specific prior written 21228177Skib * permission. 22228177Skib * 23228177Skib * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24228177Skib * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25228177Skib * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26228177Skib * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27228177Skib * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28228177Skib * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29228177Skib * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30228177Skib * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31228177Skib * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32228177Skib * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33228177Skib * SUCH DAMAGE. 34228177Skib * 35228177Skib * $FreeBSD: head/sys/geom/geom_int.h 110523 2003-02-07 23:08:24Z phk $ 36228177Skib */ 37228177Skib 38228177SkibLIST_HEAD(class_list_head, g_class); 39228177SkibTAILQ_HEAD(g_tailq_head, g_geom); 40228177SkibTAILQ_HEAD(event_tailq_head, g_event); 41228177Skib 42228177Skibextern struct event_tailq_head events; 43228177Skibextern int g_collectstats; 44228177Skibextern int g_debugflags; 45228177Skib/* 1 G_T_TOPOLOGY */ 46228177Skib/* 2 G_T_BIO */ 47228177Skib/* 4 G_T_ACCESS */ 48228177Skib/* 8 enable sanity checks */ 49228177Skib 50228177Skib/* 51228177Skib * Various internal actions are tracked by tagging g_event[s] onto 52228177Skib * an internal eventqueue. 53228177Skib */ 54228177Skibenum g_events { 55228177Skib EV_NEW_CLASS, /* class */ 56228177Skib EV_NEW_PROVIDER, /* provider */ 57228177Skib EV_SPOILED, /* provider, consumer */ 58228177Skib EV_CALL_ME, /* func, arg */ 59228177Skib EV_LAST 60228177Skib}; 61228177Skib 62228177Skibstruct g_event { 63228177Skib enum g_events event; 64228177Skib TAILQ_ENTRY(g_event) events; 65228177Skib struct g_class *class; 66228177Skib struct g_geom *geom; 67 struct g_provider *provider; 68 struct g_consumer *consumer; 69 void *arg; 70 g_call_me_t *func; 71}; 72 73/* geom_dump.c */ 74void g_confxml(void *); 75void g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp); 76void g_confdot(void *); 77void g_conftxt(void *); 78 79 80/* geom_event.c */ 81void g_event_init(void); 82void g_post_event(enum g_events ev, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp); 83void g_run_events(void); 84 85/* geom_subr.c */ 86extern struct class_list_head g_classes; 87extern char *g_wait_event, *g_wait_sim, *g_wait_up, *g_wait_down; 88 89/* geom_io.c */ 90void g_io_init(void); 91void g_io_schedule_down(struct thread *tp); 92void g_io_schedule_up(struct thread *tp); 93 94/* geom_kern.c / geom_kernsim.c */ 95void g_init(void); 96