1/*
2 * Copyright (c) 2006 David Xu <davidxu@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
| 1/*
2 * Copyright (c) 2006 David Xu <davidxu@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
|
26 * $FreeBSD: head/lib/librt/timer.c 156265 2006-03-04 00:08:24Z davidxu $
| 26 * $FreeBSD: head/lib/librt/timer.c 156267 2006-03-04 00:18:19Z davidxu $
|
27 *
28 */
29
30#include <sys/cdefs.h>
31#include <sys/types.h>
32#include <sys/syscall.h>
33
34#include "namespace.h"
35#include <errno.h>
36#include <pthread.h>
37#include <stddef.h>
38#include <signal.h>
39#include <stdlib.h>
40#include <time.h>
41#include <unistd.h>
42#include "sigev_thread.h"
43#include "un-namespace.h"
44
45extern int __sys_ktimer_create(clockid_t, struct sigevent *__restrict,
46 int *__restrict);
47extern int __sys_ktimer_delete(int);
48extern int __sys_ktimer_gettime(int, struct itimerspec *);
49extern int __sys_ktimer_getoverrun(int);
50extern int __sys_ktimer_settime(int, int,
51 const struct itimerspec *__restrict, struct itimerspec *__restrict);
52
53struct __timer {
54 int oshandle;
55 struct sigev_node *node;
56};
57
58__weak_reference(__timer_create, timer_create);
59__weak_reference(__timer_create, _timer_create);
60__weak_reference(__timer_delete, timer_delete);
61__weak_reference(__timer_delete, _timer_delete);
62__weak_reference(__timer_gettime, timer_gettime);
63__weak_reference(__timer_gettime, _timer_gettime);
64__weak_reference(__timer_settime, timer_settime);
65__weak_reference(__timer_settime, _timer_settime);
66__weak_reference(__timer_getoverrun, timer_getoverrun);
67__weak_reference(__timer_getoverrun, _timer_getoverrun);
68
| 27 *
28 */
29
30#include <sys/cdefs.h>
31#include <sys/types.h>
32#include <sys/syscall.h>
33
34#include "namespace.h"
35#include <errno.h>
36#include <pthread.h>
37#include <stddef.h>
38#include <signal.h>
39#include <stdlib.h>
40#include <time.h>
41#include <unistd.h>
42#include "sigev_thread.h"
43#include "un-namespace.h"
44
45extern int __sys_ktimer_create(clockid_t, struct sigevent *__restrict,
46 int *__restrict);
47extern int __sys_ktimer_delete(int);
48extern int __sys_ktimer_gettime(int, struct itimerspec *);
49extern int __sys_ktimer_getoverrun(int);
50extern int __sys_ktimer_settime(int, int,
51 const struct itimerspec *__restrict, struct itimerspec *__restrict);
52
53struct __timer {
54 int oshandle;
55 struct sigev_node *node;
56};
57
58__weak_reference(__timer_create, timer_create);
59__weak_reference(__timer_create, _timer_create);
60__weak_reference(__timer_delete, timer_delete);
61__weak_reference(__timer_delete, _timer_delete);
62__weak_reference(__timer_gettime, timer_gettime);
63__weak_reference(__timer_gettime, _timer_gettime);
64__weak_reference(__timer_settime, timer_settime);
65__weak_reference(__timer_settime, _timer_settime);
66__weak_reference(__timer_getoverrun, timer_getoverrun);
67__weak_reference(__timer_getoverrun, _timer_getoverrun);
68
|
69typedef void (*timer_func)(union sigval val, int timerid, int overrun);
| 69typedef void (*timer_func)(union sigval val, int overrun);
|
70
71static void
| 70
71static void
|
72timer_dispatch(struct sigev_node *sn, siginfo_t *si)
| 72timer_dispatch(struct sigev_node *sn)
|
73{
74 timer_func f = sn->sn_func;
75
76 /* I want to avoid expired notification. */
| 73{
74 timer_func f = sn->sn_func;
75
76 /* I want to avoid expired notification. */
|
77 if (si->si_value.sival_int == sn->sn_gen)
78 f(sn->sn_value, si->si_timerid, si->si_overrun);
| 77 if (sn->sn_info.si_value.sival_int == sn->sn_gen)
78 f(sn->sn_value, sn->sn_info.si_overrun);
|
79}
80
81int
82__timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid)
83{
84 struct __timer *timer;
85 struct sigevent ev;
86 struct sigev_node *sn;
87 int ret, err;
88
89 timer = malloc(sizeof(struct __timer));
90 if (timer == NULL)
91 return (-1);
92
93 if (evp == NULL || evp->sigev_notify != SIGEV_THREAD) {
94 ret = __sys_ktimer_create(clockid, evp, &timer->oshandle);
95 if (ret == -1) {
96 err = errno;
97 free(timer);
98 errno = err;
99 return (ret);
100 }
101 timer->node = NULL;
102 *timerid = timer;
103 return (0);
104 }
105
106 if (__sigev_check_init()) {
107 errno = EINVAL;
108 return (-1);
109 }
110
| 79}
80
81int
82__timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid)
83{
84 struct __timer *timer;
85 struct sigevent ev;
86 struct sigev_node *sn;
87 int ret, err;
88
89 timer = malloc(sizeof(struct __timer));
90 if (timer == NULL)
91 return (-1);
92
93 if (evp == NULL || evp->sigev_notify != SIGEV_THREAD) {
94 ret = __sys_ktimer_create(clockid, evp, &timer->oshandle);
95 if (ret == -1) {
96 err = errno;
97 free(timer);
98 errno = err;
99 return (ret);
100 }
101 timer->node = NULL;
102 *timerid = timer;
103 return (0);
104 }
105
106 if (__sigev_check_init()) {
107 errno = EINVAL;
108 return (-1);
109 }
110
|
111 sn = __sigev_alloc(SI_TIMER, evp);
| 111 sn = __sigev_alloc(SI_TIMER, evp, NULL, 0);
|
112 if (sn == NULL) {
113 errno = EAGAIN;
114 return (-1);
115 }
116
117 __sigev_get_sigevent(sn, &ev, sn->sn_gen);
118 ret = __sys_ktimer_create(clockid, &ev, &timer->oshandle);
119 if (ret != 0) {
120 err = errno;
121 __sigev_free(sn);
122 free(timer);
123 errno = err;
124 return (-1);
125 }
126 sn->sn_dispatch = timer_dispatch;
127 sn->sn_id = timer->oshandle;
128 timer->node = sn;
129 __sigev_list_lock();
130 __sigev_register(sn);
131 __sigev_list_unlock();
132 *timerid = timer;
133 return (0);
134}
135
136int
137__timer_delete(timer_t timerid)
138{
139 int ret, err;
140
141 if (timerid->node != NULL) {
142 __sigev_list_lock();
143 __sigev_delete_node(timerid->node);
144 __sigev_list_unlock();
145 }
146 ret = __sys_ktimer_delete(timerid->oshandle);
147 err = errno;
148 free(timerid);
149 errno = err;
150 return (ret);
151}
152
153int
154__timer_gettime(timer_t timerid, struct itimerspec *value)
155{
156
157 return __sys_ktimer_gettime(timerid->oshandle, value);
158}
159
160int
161__timer_getoverrun(timer_t timerid)
162{
163
164 return __sys_ktimer_getoverrun(timerid->oshandle);
165}
166
167int
168__timer_settime(timer_t timerid, int flags,
169 const struct itimerspec *__restrict value,
170 struct itimerspec *__restrict ovalue)
171{
172
173 return __sys_ktimer_settime(timerid->oshandle,
174 flags, value, ovalue);
175}
176
177int
178__timer_oshandle(timer_t timerid)
179{
180
181 return (timerid->oshandle);
182}
| 112 if (sn == NULL) {
113 errno = EAGAIN;
114 return (-1);
115 }
116
117 __sigev_get_sigevent(sn, &ev, sn->sn_gen);
118 ret = __sys_ktimer_create(clockid, &ev, &timer->oshandle);
119 if (ret != 0) {
120 err = errno;
121 __sigev_free(sn);
122 free(timer);
123 errno = err;
124 return (-1);
125 }
126 sn->sn_dispatch = timer_dispatch;
127 sn->sn_id = timer->oshandle;
128 timer->node = sn;
129 __sigev_list_lock();
130 __sigev_register(sn);
131 __sigev_list_unlock();
132 *timerid = timer;
133 return (0);
134}
135
136int
137__timer_delete(timer_t timerid)
138{
139 int ret, err;
140
141 if (timerid->node != NULL) {
142 __sigev_list_lock();
143 __sigev_delete_node(timerid->node);
144 __sigev_list_unlock();
145 }
146 ret = __sys_ktimer_delete(timerid->oshandle);
147 err = errno;
148 free(timerid);
149 errno = err;
150 return (ret);
151}
152
153int
154__timer_gettime(timer_t timerid, struct itimerspec *value)
155{
156
157 return __sys_ktimer_gettime(timerid->oshandle, value);
158}
159
160int
161__timer_getoverrun(timer_t timerid)
162{
163
164 return __sys_ktimer_getoverrun(timerid->oshandle);
165}
166
167int
168__timer_settime(timer_t timerid, int flags,
169 const struct itimerspec *__restrict value,
170 struct itimerspec *__restrict ovalue)
171{
172
173 return __sys_ktimer_settime(timerid->oshandle,
174 flags, value, ovalue);
175}
176
177int
178__timer_oshandle(timer_t timerid)
179{
180
181 return (timerid->oshandle);
182}
|