1 /*
2 * Copyright (C) 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #ifndef CHPP_PLATFORM_SYNC_H_
18 #define CHPP_PLATFORM_SYNC_H_
19
20 #include <pthread.h>
21 #include <stdint.h>
22
23 #include "chpp/mutex.h"
24
25 #ifdef __cplusplus
26 extern "C" {
27 #endif
28
29 struct ChppNotifier {
30 pthread_cond_t cond; // Condition variable
31 struct ChppMutex mutex; // Platform-specific mutex
32 uint32_t signal;
33 };
34
35 /**
36 * Platform implementation of chppNotifierInit()
37 */
38 void chppPlatformNotifierInit(struct ChppNotifier *notifier);
39
40 /**
41 * Platform implementation of chppNotifierDeinit()
42 */
43 void chppPlatformNotifierDeinit(struct ChppNotifier *notifier);
44
45 /**
46 * Platform implementation of chppNotifierGetSignal()
47 */
48 uint32_t chppPlatformNotifierGetSignal(struct ChppNotifier *notifier);
49
50 /**
51 * Platform implementation of chppNotifierWait()
52 */
53 uint32_t chppPlatformNotifierWait(struct ChppNotifier *notifier);
54
55 /**
56 * Platform implementation of chppNotifierTimedWait()
57 */
58 uint32_t chppPlatformNotifierTimedWait(struct ChppNotifier *notifier,
59 uint64_t timeoutNs);
60
61 /**
62 * Platform implementation of chppNotifierSignal()
63 */
64 void chppPlatformNotifierSignal(struct ChppNotifier *notifier, uint32_t signal);
65
chppNotifierInit(struct ChppNotifier * notifier)66 static inline void chppNotifierInit(struct ChppNotifier *notifier) {
67 chppPlatformNotifierInit(notifier);
68 }
69
chppNotifierDeinit(struct ChppNotifier * notifier)70 static inline void chppNotifierDeinit(struct ChppNotifier *notifier) {
71 chppPlatformNotifierDeinit(notifier);
72 }
73
chppNotifierGetSignal(struct ChppNotifier * notifier)74 static inline uint32_t chppNotifierGetSignal(struct ChppNotifier *notifier) {
75 return chppPlatformNotifierGetSignal(notifier);
76 }
77
chppNotifierWait(struct ChppNotifier * notifier)78 static inline uint32_t chppNotifierWait(struct ChppNotifier *notifier) {
79 return chppPlatformNotifierWait(notifier);
80 }
81
chppNotifierTimedWait(struct ChppNotifier * notifier,uint64_t timeoutNs)82 static inline uint32_t chppNotifierTimedWait(struct ChppNotifier *notifier,
83 uint64_t timeoutNs) {
84 return chppPlatformNotifierTimedWait(notifier, timeoutNs);
85 }
86
chppNotifierSignal(struct ChppNotifier * notifier,uint32_t signal)87 static inline void chppNotifierSignal(struct ChppNotifier *notifier,
88 uint32_t signal) {
89 chppPlatformNotifierSignal(notifier, signal);
90 }
91
92 #ifdef __cplusplus
93 }
94 #endif
95
96 #endif // CHPP_PLATFORM_SYNC_H_
97