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 
Mutex()23 Mutex::Mutex() {
24 }
25 
~Mutex()26 Mutex::~Mutex() {
27     pthread_mutex_destroy(&mMutex);
28 }
29 
init()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 
lock()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 
unlock()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