1 /* 2 * Copyright (C) 2014 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 #include <pthread.h> 18 19 #ifndef __WIFI_HAL_SYNC_H__ 20 #define __WIFI_HAL_SYNC_H__ 21 22 class Mutex 23 { 24 private: 25 pthread_mutex_t mMutex; 26 public: 27 Mutex() { 28 pthread_mutex_init(&mMutex, NULL); 29 } 30 ~Mutex() { 31 pthread_mutex_destroy(&mMutex); 32 } 33 int tryLock() { 34 return pthread_mutex_trylock(&mMutex); 35 } 36 int lock() { 37 return pthread_mutex_lock(&mMutex); 38 } 39 void unlock() { 40 pthread_mutex_unlock(&mMutex); 41 } 42 }; 43 44 class Condition 45 { 46 private: 47 pthread_cond_t mCondition; 48 pthread_mutex_t mMutex; 49 50 public: 51 Condition() { 52 pthread_mutex_init(&mMutex, NULL); 53 pthread_cond_init(&mCondition, NULL); 54 } 55 ~Condition() { 56 pthread_cond_destroy(&mCondition); 57 pthread_mutex_destroy(&mMutex); 58 } 59 60 int wait() { 61 return pthread_cond_wait(&mCondition, &mMutex); 62 } 63 64 int wait(struct timespec abstime) 65 { 66 struct timeval now; 67 68 gettimeofday(&now,NULL); 69 70 abstime.tv_sec += now.tv_sec; 71 if(((abstime.tv_nsec + now.tv_usec*1000) > 1000*1000*1000) || (abstime.tv_nsec + now.tv_usec*1000 < 0)) 72 { 73 abstime.tv_sec += 1; 74 abstime.tv_nsec += now.tv_usec * 1000; 75 abstime.tv_nsec -= 1000*1000*1000; 76 } 77 else 78 { 79 abstime.tv_nsec += now.tv_usec * 1000; 80 } 81 return pthread_cond_timedwait(&mCondition, &mMutex, &abstime); 82 } 83 84 void signal() { 85 pthread_cond_signal(&mCondition); 86 } 87 }; 88 89 #endif 90
