2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/queue.h>
36 * (c) container lock (e.g. jail's pr_mtx) and/or osd_object_lock
40 u_int osd_nslots; /* (c) */
41 void **osd_slots; /* (c) */
42 LIST_ENTRY(osd) osd_next; /* (l) */
50 #define OSD_FIRST OSD_THREAD
51 #define OSD_LAST OSD_JAIL
53 typedef void (*osd_destructor_t)(void *value);
54 typedef int (*osd_method_t)(void *obj, void *data);
56 int osd_register(u_int type, osd_destructor_t destructor,
57 osd_method_t *methods);
58 void osd_deregister(u_int type, u_int slot);
60 int osd_set(u_int type, struct osd *osd, u_int slot, void *value);
61 void *osd_get(u_int type, struct osd *osd, u_int slot);
62 void osd_del(u_int type, struct osd *osd, u_int slot);
63 int osd_call(u_int type, u_int method, void *obj, void *data);
65 void osd_exit(u_int type, struct osd *osd);
67 #define osd_thread_register(destructor) \
68 osd_register(OSD_THREAD, (destructor), NULL)
69 #define osd_thread_deregister(slot) \
70 osd_deregister(OSD_THREAD, (slot))
71 #define osd_thread_set(td, slot, value) \
72 osd_set(OSD_THREAD, &(td)->td_osd, (slot), (value))
73 #define osd_thread_get(td, slot) \
74 osd_get(OSD_THREAD, &(td)->td_osd, (slot))
75 #define osd_thread_del(td, slot) do { \
76 KASSERT((td) == curthread, ("Not curthread.")); \
77 osd_del(OSD_THREAD, &(td)->td_osd, (slot)); \
79 #define osd_thread_call(td, method, data) \
80 osd_call(OSD_THREAD, (method), (td), (data))
81 #define osd_thread_exit(td) \
82 osd_exit(OSD_THREAD, &(td)->td_osd)
84 #define osd_jail_register(destructor, methods) \
85 osd_register(OSD_JAIL, (destructor), (methods))
86 #define osd_jail_deregister(slot) \
87 osd_deregister(OSD_JAIL, (slot))
88 #define osd_jail_set(pr, slot, value) \
89 osd_set(OSD_JAIL, &(pr)->pr_osd, (slot), (value))
90 #define osd_jail_get(pr, slot) \
91 osd_get(OSD_JAIL, &(pr)->pr_osd, (slot))
92 #define osd_jail_del(pr, slot) \
93 osd_del(OSD_JAIL, &(pr)->pr_osd, (slot))
94 #define osd_jail_call(pr, method, data) \
95 osd_call(OSD_JAIL, (method), (pr), (data))
96 #define osd_jail_exit(pr) \
97 osd_exit(OSD_JAIL, &(pr)->pr_osd)
101 #endif /* !_SYS_OSD_H_ */