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.
28 * Copyright (c) 2015, Joyent, Inc. All rights reserved.
34 #include <sys/types.h>
36 #include <sys/thread.h>
45 extern int timer_max
; /* patchable via /etc/system */
48 * Bit values for the it_lock field.
50 #define ITLK_LOCKED 0x01
51 #define ITLK_WANTED 0x02
52 #define ITLK_REMOVE 0x04
55 * Bit values for the it_flags field.
57 #define IT_SIGNAL 0x01
58 #define IT_PORT 0x02 /* use event port notification */
63 typedef struct itimer itimer_t
;
66 itimerspec_t it_itime
;
70 void *it_arg
; /* clock backend-specific data */
74 sigqueue_t
*__it_sigq
;
78 } __data
; /* timer frontend-specific data */
83 struct clock_backend
*it_backend
;
84 void (*it_fire
)(itimer_t
*);
86 void *it_portev
; /* port_kevent_t pointer */
87 void *it_portsrc
; /* port_source_t pointer */
88 int it_portfd
; /* port file descriptor */
91 #define it_sigq __data.__proc.__it_sigq
92 #define it_lwp __data.__proc.__it_lwp
93 #define it_frontend __data.__it_frontend
95 typedef struct clock_backend
{
96 struct sigevent clk_default
;
97 int (*clk_clock_settime
)(timespec_t
*);
98 int (*clk_clock_gettime
)(timespec_t
*);
99 int (*clk_clock_getres
)(timespec_t
*);
100 int (*clk_timer_create
)(itimer_t
*, void (*)(itimer_t
*));
101 int (*clk_timer_settime
)(itimer_t
*, int, const struct itimerspec
*);
102 int (*clk_timer_gettime
)(itimer_t
*, struct itimerspec
*);
103 int (*clk_timer_delete
)(itimer_t
*);
104 void (*clk_timer_lwpbind
)(itimer_t
*);
107 extern void clock_add_backend(clockid_t clock
, clock_backend_t
*backend
);
108 extern clock_backend_t
*clock_get_backend(clockid_t clock
);
110 extern void timer_lwpbind();
112 extern void timer_func(sigqueue_t
*);
113 extern void timer_exit(void);
114 extern void timer_lwpexit(void);
115 extern clock_t hzto(struct timeval
*);
116 extern clock_t timespectohz(timespec_t
*, timespec_t
);
117 extern int64_t timespectohz64(timespec_t
*);
118 extern int itimerspecfix(timespec_t
*);
119 extern void timespecadd(timespec_t
*, timespec_t
*);
120 extern void timespecsub(timespec_t
*, timespec_t
*);
121 extern void timespecfix(timespec_t
*);
122 extern int xgetitimer(uint_t
, struct itimerval
*, int);
123 extern int xsetitimer(uint_t
, struct itimerval
*, int);
124 extern void delete_itimer_realprof(void);
126 #define timerspecisset(tvp) ((tvp)->tv_sec || (tvp)->tv_nsec)
127 #define timerspeccmp(tvp, uvp) (((tvp)->tv_sec - (uvp)->tv_sec) ? \
128 ((tvp)->tv_sec - (uvp)->tv_sec):((tvp)->tv_nsec - (uvp)->tv_nsec))
129 #define timerspecclear(tvp) ((tvp)->tv_sec = (tvp)->tv_nsec = 0)
137 #endif /* _SYS_TIMER_H */