| /*- |
| * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _BSD_SYS_OSD_H_ |
| #define _BSD_SYS_OSD_H_ |
| |
| #include <sys/bsd_queue.h> |
| |
| /* |
| * Lock key: |
| * (c) container lock (e.g. jail's pr_mtx) and/or osd_object_lock |
| * (l) osd_list_lock |
| */ |
| struct osd { |
| u_int osd_nslots; /* (c) */ |
| void **osd_slots; /* (c) */ |
| LIST_ENTRY(osd) osd_next; /* (l) */ |
| }; |
| |
| #ifdef _FREEBSD_KERNEL |
| |
| #define OSD_THREAD 0 |
| #define OSD_JAIL 1 |
| |
| #define OSD_FIRST OSD_THREAD |
| #define OSD_LAST OSD_JAIL |
| |
| typedef void (*osd_destructor_t)(void *value); |
| typedef int (*osd_method_t)(void *obj, void *data); |
| |
| int osd_register(u_int type, osd_destructor_t destructor, |
| osd_method_t *methods); |
| void osd_deregister(u_int type, u_int slot); |
| |
| int osd_set(u_int type, struct osd *osd, u_int slot, void *value); |
| void *osd_get(u_int type, struct osd *osd, u_int slot); |
| void osd_del(u_int type, struct osd *osd, u_int slot); |
| int osd_call(u_int type, u_int method, void *obj, void *data); |
| |
| void osd_exit(u_int type, struct osd *osd); |
| |
| #define osd_thread_register(destructor) \ |
| osd_register(OSD_THREAD, (destructor), NULL) |
| #define osd_thread_deregister(slot) \ |
| osd_deregister(OSD_THREAD, (slot)) |
| #define osd_thread_set(td, slot, value) \ |
| osd_set(OSD_THREAD, &(td)->td_osd, (slot), (value)) |
| #define osd_thread_get(td, slot) \ |
| osd_get(OSD_THREAD, &(td)->td_osd, (slot)) |
| #define osd_thread_del(td, slot) do { \ |
| KASSERT((td) == curthread, ("Not curthread.")); \ |
| osd_del(OSD_THREAD, &(td)->td_osd, (slot)); \ |
| } while (0) |
| #define osd_thread_call(td, method, data) \ |
| osd_call(OSD_THREAD, (method), (td), (data)) |
| #define osd_thread_exit(td) \ |
| osd_exit(OSD_THREAD, &(td)->td_osd) |
| |
| #define osd_jail_register(destructor, methods) \ |
| osd_register(OSD_JAIL, (destructor), (methods)) |
| #define osd_jail_deregister(slot) \ |
| osd_deregister(OSD_JAIL, (slot)) |
| #define osd_jail_set(pr, slot, value) \ |
| osd_set(OSD_JAIL, &(pr)->pr_osd, (slot), (value)) |
| #define osd_jail_get(pr, slot) \ |
| osd_get(OSD_JAIL, &(pr)->pr_osd, (slot)) |
| #define osd_jail_del(pr, slot) \ |
| osd_del(OSD_JAIL, &(pr)->pr_osd, (slot)) |
| #define osd_jail_call(pr, method, data) \ |
| osd_call(OSD_JAIL, (method), (pr), (data)) |
| #define osd_jail_exit(pr) \ |
| osd_exit(OSD_JAIL, &(pr)->pr_osd) |
| |
| #endif /* _FREEBSD_KERNEL */ |
| |
| #endif /* !_BSD_SYS_OSD_H_ */ |
