4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
30 #include <sys/types.h>
32 #include <sys/thread.h>
41 extern int timer_max
; /* patchable via /etc/system */
44 * Bit values for the it_lock field.
46 #define ITLK_LOCKED 0x01
47 #define ITLK_WANTED 0x02
48 #define ITLK_REMOVE 0x04
51 * Bit values for the it_flags field.
53 #define IT_SIGNAL 0x01
54 #define IT_PORT 0x02 /* use event port notification */
58 typedef struct itimer
{
59 itimerspec_t it_itime
;
71 struct clock_backend
*it_backend
;
73 void *it_portev
; /* port_kevent_t pointer */
74 void *it_portsrc
; /* port_source_t pointer */
75 int it_portfd
; /* port file descriptor */
78 typedef struct clock_backend
{
79 struct sigevent clk_default
;
80 int (*clk_clock_settime
)(timespec_t
*);
81 int (*clk_clock_gettime
)(timespec_t
*);
82 int (*clk_clock_getres
)(timespec_t
*);
83 int (*clk_timer_create
)(itimer_t
*, struct sigevent
*);
84 int (*clk_timer_settime
)(itimer_t
*, int, const struct itimerspec
*);
85 int (*clk_timer_gettime
)(itimer_t
*, struct itimerspec
*);
86 int (*clk_timer_delete
)(itimer_t
*);
87 void (*clk_timer_lwpbind
)(itimer_t
*);
90 extern void clock_add_backend(clockid_t clock
, clock_backend_t
*backend
);
92 extern void timer_fire(itimer_t
*);
93 extern void timer_lwpbind();
95 extern void timer_func(sigqueue_t
*);
96 extern void timer_exit(void);
97 extern void timer_lwpexit(void);
98 extern clock_t hzto(struct timeval
*);
99 extern clock_t timespectohz(timespec_t
*, timespec_t
);
100 extern int64_t timespectohz64(timespec_t
*);
101 extern int itimerspecfix(timespec_t
*);
102 extern void timespecadd(timespec_t
*, timespec_t
*);
103 extern void timespecsub(timespec_t
*, timespec_t
*);
104 extern void timespecfix(timespec_t
*);
105 extern int xgetitimer(uint_t
, struct itimerval
*, int);
106 extern int xsetitimer(uint_t
, struct itimerval
*, int);
107 extern void delete_itimer_realprof(void);
109 #define timerspecisset(tvp) ((tvp)->tv_sec || (tvp)->tv_nsec)
110 #define timerspeccmp(tvp, uvp) (((tvp)->tv_sec - (uvp)->tv_sec) ? \
111 ((tvp)->tv_sec - (uvp)->tv_sec):((tvp)->tv_nsec - (uvp)->tv_nsec))
112 #define timerspecclear(tvp) ((tvp)->tv_sec = (tvp)->tv_nsec = 0)
115 /* structure definition prior to notification attributes member */
119 void (*_notify_function
)(union sigval
);
124 #if defined(_SYSCALL32)
126 struct oldsigevent32
{
130 caddr32_t _notify_function
;
132 union sigval32 _value
;
135 #endif /* _SYSCALL32 */
142 #endif /* _SYS_TIMER_H */