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 #include "wifi_hal.h" 19 #include "common.h" 20 21 #ifndef __WIFI_HAL_SYNC_H__ 22 #define __WIFI_HAL_SYNC_H__ 23 24 class Mutex 25 { 26 private: 27 pthread_mutex_t mMutex; 28 public: Mutex()29 Mutex() { 30 pthread_mutex_init(&mMutex, NULL); 31 } ~Mutex()32 ~Mutex() { 33 pthread_mutex_destroy(&mMutex); 34 } tryLock()35 int tryLock() { 36 return pthread_mutex_trylock(&mMutex); 37 } lock()38 int lock() { 39 return pthread_mutex_lock(&mMutex); 40 } unlock()41 void unlock() { 42 pthread_mutex_unlock(&mMutex); 43 } 44 }; 45 46 class Condition 47 { 48 private: 49 pthread_cond_t mCondition; 50 pthread_mutex_t mMutex; 51 52 public: Condition()53 Condition() { 54 pthread_mutex_init(&mMutex, NULL); 55 pthread_cond_init(&mCondition, NULL); 56 } ~Condition()57 ~Condition() { 58 pthread_cond_destroy(&mCondition); 59 pthread_mutex_destroy(&mMutex); 60 } 61 wait()62 wifi_error wait() { 63 int status = pthread_cond_wait(&mCondition, &mMutex); 64 return mapKernelErrortoWifiHalError(status); 65 } 66 wait(struct timespec abstime)67 wifi_error wait(struct timespec abstime) 68 { 69 struct timeval now; 70 int status; 71 72 gettimeofday(&now,NULL); 73 74 abstime.tv_sec += now.tv_sec; 75 if(((abstime.tv_nsec + now.tv_usec*1000) > 1000*1000*1000) || (abstime.tv_nsec + now.tv_usec*1000 < 0)) 76 { 77 abstime.tv_sec += 1; 78 abstime.tv_nsec += now.tv_usec * 1000; 79 abstime.tv_nsec -= 1000*1000*1000; 80 } 81 else 82 { 83 abstime.tv_nsec += now.tv_usec * 1000; 84 } 85 status = pthread_cond_timedwait(&mCondition, &mMutex, &abstime); 86 return mapKernelErrortoWifiHalError(status); 87 } 88 signal()89 void signal() { 90 pthread_cond_signal(&mCondition); 91 } 92 }; 93 94 #endif 95