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      1 /*
      2  * Copyright (C) 2009 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 "rsMutex.h"
     18 
     19 using namespace android;
     20 using namespace android::renderscript;
     21 
     22 
     23 Mutex::Mutex() {
     24 }
     25 
     26 Mutex::~Mutex() {
     27     pthread_mutex_destroy(&mMutex);
     28 }
     29 
     30 bool Mutex::init() {
     31     int status = pthread_mutex_init(&mMutex, nullptr);
     32     if (status) {
     33         ALOGE("Mutex::Mutex init failure");
     34         return false;
     35     }
     36     return true;
     37 }
     38 
     39 bool Mutex::lock() {
     40     int status;
     41     status = pthread_mutex_lock(&mMutex);
     42     if (status) {
     43         ALOGE("Mutex: error %i locking.", status);
     44         return false;
     45     }
     46     return true;
     47 }
     48 
     49 bool Mutex::unlock() {
     50     int status;
     51     status = pthread_mutex_unlock(&mMutex);
     52     if (status) {
     53         ALOGE("Mutex error %i unlocking.", status);
     54         return false;
     55     }
     56     return true;
     57 }
     58 
     59 
     60