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1 | /* |
2 | * | |
3 | * Copyright 2012 Samsung Electronics S.LSI Co. LTD | |
4 | * | |
5 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
6 | * you may not use this file except in compliance with the License. | |
7 | * You may obtain a copy of the License at | |
8 | * | |
9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
16 | */ | |
17 | ||
18 | /* | |
19 | * @file Exynos_OSAL_Event.c | |
20 | * @brief | |
21 | * @author SeungBeom Kim (sbcrux.kim@samsung.com) | |
22 | * @version 2.0.0 | |
23 | * @history | |
24 | * 2012.02.20 : Create | |
25 | */ | |
26 | ||
27 | ||
28 | #include <stdio.h> | |
29 | #include <stdlib.h> | |
30 | #include <string.h> | |
31 | #include <pthread.h> | |
32 | #include <errno.h> | |
33 | ||
34 | #include "Exynos_OSAL_Memory.h" | |
35 | #include "Exynos_OSAL_Mutex.h" | |
36 | #include "Exynos_OSAL_Event.h" | |
37 | ||
38 | #undef EXYNOS_LOG_TAG | |
39 | #define EXYNOS_LOG_TAG "Exynos_OSAL_EVENT" | |
40 | #define EXYNOS_LOG_OFF | |
41 | #include "Exynos_OSAL_Log.h" | |
42 | ||
43 | ||
44 | OMX_ERRORTYPE Exynos_OSAL_SignalCreate(OMX_HANDLETYPE *eventHandle) | |
45 | { | |
46 | Exynos_OSAL_THREADEVENT *event; | |
47 | OMX_ERRORTYPE ret = OMX_ErrorNone; | |
48 | ||
49 | event = (Exynos_OSAL_THREADEVENT *)Exynos_OSAL_Malloc(sizeof(Exynos_OSAL_THREADEVENT)); | |
50 | if (!event) { | |
51 | ret = OMX_ErrorInsufficientResources; | |
52 | goto EXIT; | |
53 | } | |
54 | ||
55 | Exynos_OSAL_Memset(event, 0, sizeof(Exynos_OSAL_THREADEVENT)); | |
56 | event->signal = OMX_FALSE; | |
57 | ||
58 | ret = Exynos_OSAL_MutexCreate(&event->mutex); | |
59 | if (ret != OMX_ErrorNone) { | |
60 | Exynos_OSAL_Free(event); | |
61 | goto EXIT; | |
62 | } | |
63 | ||
64 | if (pthread_cond_init(&event->condition, NULL)) { | |
65 | Exynos_OSAL_MutexTerminate(event->mutex); | |
66 | Exynos_OSAL_Free(event); | |
67 | ret = OMX_ErrorUndefined; | |
68 | goto EXIT; | |
69 | } | |
70 | ||
71 | *eventHandle = (OMX_HANDLETYPE)event; | |
72 | ret = OMX_ErrorNone; | |
73 | ||
74 | EXIT: | |
75 | return ret; | |
76 | } | |
77 | ||
78 | OMX_ERRORTYPE Exynos_OSAL_SignalTerminate(OMX_HANDLETYPE eventHandle) | |
79 | { | |
80 | Exynos_OSAL_THREADEVENT *event = (Exynos_OSAL_THREADEVENT *)eventHandle; | |
81 | OMX_ERRORTYPE ret = OMX_ErrorNone; | |
82 | ||
83 | if (!event) { | |
84 | ret = OMX_ErrorBadParameter; | |
85 | goto EXIT; | |
86 | } | |
87 | ||
88 | ret = Exynos_OSAL_MutexLock(event->mutex); | |
89 | if (ret != OMX_ErrorNone) { | |
90 | ret = OMX_ErrorBadParameter; | |
91 | goto EXIT; | |
92 | } | |
93 | ||
94 | if (pthread_cond_destroy(&event->condition)) { | |
95 | ret = OMX_ErrorUndefined; | |
96 | goto EXIT; | |
97 | } | |
98 | ||
99 | ret = Exynos_OSAL_MutexUnlock(event->mutex); | |
100 | if (ret != OMX_ErrorNone) { | |
101 | ret = OMX_ErrorUndefined; | |
102 | goto EXIT; | |
103 | } | |
104 | ||
105 | ret = Exynos_OSAL_MutexTerminate(event->mutex); | |
106 | if (ret != OMX_ErrorNone) { | |
107 | ret = OMX_ErrorUndefined; | |
108 | goto EXIT; | |
109 | } | |
110 | ||
111 | Exynos_OSAL_Free(event); | |
112 | ||
113 | EXIT: | |
114 | return ret; | |
115 | } | |
116 | ||
117 | OMX_ERRORTYPE Exynos_OSAL_SignalReset(OMX_HANDLETYPE eventHandle) | |
118 | { | |
119 | Exynos_OSAL_THREADEVENT *event = (Exynos_OSAL_THREADEVENT *)eventHandle; | |
120 | OMX_ERRORTYPE ret = OMX_ErrorNone; | |
121 | ||
122 | if (!event) { | |
123 | ret = OMX_ErrorBadParameter; | |
124 | goto EXIT; | |
125 | } | |
126 | ||
127 | ret = Exynos_OSAL_MutexLock(event->mutex); | |
128 | if (ret != OMX_ErrorNone) { | |
129 | ret = OMX_ErrorBadParameter; | |
130 | goto EXIT; | |
131 | } | |
132 | ||
133 | event->signal = OMX_FALSE; | |
134 | ||
135 | Exynos_OSAL_MutexUnlock(event->mutex); | |
136 | ||
137 | EXIT: | |
138 | return ret; | |
139 | } | |
140 | ||
141 | OMX_ERRORTYPE Exynos_OSAL_SignalSet(OMX_HANDLETYPE eventHandle) | |
142 | { | |
143 | Exynos_OSAL_THREADEVENT *event = (Exynos_OSAL_THREADEVENT *)eventHandle; | |
144 | OMX_ERRORTYPE ret = OMX_ErrorNone; | |
145 | ||
146 | if (!event) { | |
147 | ret = OMX_ErrorBadParameter; | |
148 | goto EXIT; | |
149 | } | |
150 | ||
151 | ret = Exynos_OSAL_MutexLock(event->mutex); | |
152 | if (ret != OMX_ErrorNone) { | |
153 | ret = OMX_ErrorBadParameter; | |
154 | goto EXIT; | |
155 | } | |
156 | ||
157 | event->signal = OMX_TRUE; | |
158 | pthread_cond_signal(&event->condition); | |
159 | ||
160 | Exynos_OSAL_MutexUnlock(event->mutex); | |
161 | ||
162 | EXIT: | |
163 | return ret; | |
164 | } | |
165 | ||
166 | OMX_ERRORTYPE Exynos_OSAL_SignalWait(OMX_HANDLETYPE eventHandle, OMX_U32 ms) | |
167 | { | |
168 | Exynos_OSAL_THREADEVENT *event = (Exynos_OSAL_THREADEVENT *)eventHandle; | |
169 | OMX_ERRORTYPE ret = OMX_ErrorNone; | |
170 | struct timespec timeout; | |
171 | struct timeval now; | |
172 | int funcret = 0; | |
173 | OMX_U32 tv_us; | |
174 | ||
175 | FunctionIn(); | |
176 | ||
177 | if (!event) { | |
178 | ret = OMX_ErrorBadParameter; | |
179 | goto EXIT; | |
180 | } | |
181 | ||
182 | gettimeofday(&now, NULL); | |
183 | ||
184 | tv_us = now.tv_usec + ms * 1000; | |
185 | timeout.tv_sec = now.tv_sec + tv_us / 1000000; | |
186 | timeout.tv_nsec = (tv_us % 1000000) * 1000; | |
187 | ||
188 | ret = Exynos_OSAL_MutexLock(event->mutex); | |
189 | if (ret != OMX_ErrorNone) { | |
190 | ret = OMX_ErrorBadParameter; | |
191 | goto EXIT; | |
192 | } | |
193 | ||
194 | if (ms == 0) { | |
195 | if (!event->signal) | |
196 | ret = OMX_ErrorTimeout; | |
197 | } else if (ms == DEF_MAX_WAIT_TIME) { | |
198 | while (!event->signal) | |
199 | pthread_cond_wait(&event->condition, (pthread_mutex_t *)(event->mutex)); | |
200 | ret = OMX_ErrorNone; | |
201 | } else { | |
202 | while (!event->signal) { | |
203 | funcret = pthread_cond_timedwait(&event->condition, (pthread_mutex_t *)(event->mutex), &timeout); | |
204 | if ((!event->signal) && (funcret == ETIMEDOUT)) { | |
205 | ret = OMX_ErrorTimeout; | |
206 | break; | |
207 | } | |
208 | } | |
209 | } | |
210 | ||
211 | Exynos_OSAL_MutexUnlock(event->mutex); | |
212 | ||
213 | EXIT: | |
214 | FunctionOut(); | |
215 | ||
216 | return ret; | |
217 | } |