10d163575Sopenharmony_ci/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2000 Jake Burkholder <jake@freebsd.org>.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD$");
31
32#include <sys/condvar.h>
33#include <sys/callout.h>
34#include <time.h>
35#include <los_event.h>
36
37extern UINT32 OsEventWriteOnce(EVENT_CB_S *eventCb, UINT32 events);
38
39int
40cv_timedwait(struct cv *cv, struct mtx *mtx, int tw_ms)
41{
42	struct timespec abstime;
43
44	abstime.tv_sec = tw_ms / MSEC_PER_SEC;
45	abstime.tv_nsec = (tw_ms%MSEC_PER_SEC) * NSEC_PER_MSEC;
46	return (pthread_cond_timedwait(cv, mtx, &abstime));
47}
48
49int
50cv_signal(pthread_cond_t *cond)
51{
52	int ret;
53
54	if (cond == NULL) {
55		return (EINVAL);
56	}
57	ret = OsEventWriteOnce(&(cond->event), 0x01);
58
59	if (ret != 0) {
60		return (EINVAL);
61	}
62
63	return (ret);
64}
65
66int
67cv_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
68{
69	int ret;
70
71	if ((cond == NULL) || (mutex == NULL)) {
72		return (EINVAL);
73	}
74
75	(void)pthread_mutex_lock(cond->mutex);
76	if (cond->value == -1) {
77		cond->value = 0;
78		ret = LOS_EventInit(&(cond->event));
79		if (ret != LOS_OK) {
80			(void)pthread_mutex_unlock(cond->mutex);
81			return (EINVAL);
82		}
83	}
84	(void)pthread_mutex_unlock(cond->mutex);
85
86	if (pthread_mutex_unlock(mutex) != ENOERR) {
87		PRINTK("%s %d\n",__FUNCTION__,__LINE__);
88	}
89
90	ret = LOS_EventRead(&(cond->event), 0x0f, LOS_WAITMODE_OR | LOS_WAITMODE_CLR, LOS_WAIT_FOREVER);
91
92	if (pthread_mutex_lock(mutex) != ENOERR) {
93		PRINTK("%s %d\n",__FUNCTION__,__LINE__);
94	}
95
96	return (ret);
97}
98
99int
100cv_broadcast(pthread_cond_t *cond)
101{
102	int ret;
103
104	if (cond == NULL) {
105		return (EINVAL);
106	}
107
108	ret = LOS_EventWrite(&(cond->event), 0x01);
109	if (ret != 0) {
110		return (EINVAL);
111	}
112
113	return (ret);
114}
115