xref: /aosp_15_r20/frameworks/rs/rsMutex.cpp (revision e1eccf28f96817838ad6867f7f39d2351ec11f56)
1*e1eccf28SAndroid Build Coastguard Worker /*
2*e1eccf28SAndroid Build Coastguard Worker  * Copyright (C) 2009 The Android Open Source Project
3*e1eccf28SAndroid Build Coastguard Worker  *
4*e1eccf28SAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
5*e1eccf28SAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
6*e1eccf28SAndroid Build Coastguard Worker  * You may obtain a copy of the License at
7*e1eccf28SAndroid Build Coastguard Worker  *
8*e1eccf28SAndroid Build Coastguard Worker  *      http://www.apache.org/licenses/LICENSE-2.0
9*e1eccf28SAndroid Build Coastguard Worker  *
10*e1eccf28SAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
11*e1eccf28SAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
12*e1eccf28SAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*e1eccf28SAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
14*e1eccf28SAndroid Build Coastguard Worker  * limitations under the License.
15*e1eccf28SAndroid Build Coastguard Worker  */
16*e1eccf28SAndroid Build Coastguard Worker 
17*e1eccf28SAndroid Build Coastguard Worker #include "rsMutex.h"
18*e1eccf28SAndroid Build Coastguard Worker 
19*e1eccf28SAndroid Build Coastguard Worker namespace android {
20*e1eccf28SAndroid Build Coastguard Worker namespace renderscript {
21*e1eccf28SAndroid Build Coastguard Worker 
Mutex()22*e1eccf28SAndroid Build Coastguard Worker Mutex::Mutex() {
23*e1eccf28SAndroid Build Coastguard Worker }
24*e1eccf28SAndroid Build Coastguard Worker 
~Mutex()25*e1eccf28SAndroid Build Coastguard Worker Mutex::~Mutex() {
26*e1eccf28SAndroid Build Coastguard Worker     pthread_mutex_destroy(&mMutex);
27*e1eccf28SAndroid Build Coastguard Worker }
28*e1eccf28SAndroid Build Coastguard Worker 
init()29*e1eccf28SAndroid Build Coastguard Worker bool Mutex::init() {
30*e1eccf28SAndroid Build Coastguard Worker     int status = pthread_mutex_init(&mMutex, nullptr);
31*e1eccf28SAndroid Build Coastguard Worker     if (status) {
32*e1eccf28SAndroid Build Coastguard Worker         ALOGE("Mutex::Mutex init failure");
33*e1eccf28SAndroid Build Coastguard Worker         return false;
34*e1eccf28SAndroid Build Coastguard Worker     }
35*e1eccf28SAndroid Build Coastguard Worker     return true;
36*e1eccf28SAndroid Build Coastguard Worker }
37*e1eccf28SAndroid Build Coastguard Worker 
lock()38*e1eccf28SAndroid Build Coastguard Worker bool Mutex::lock() {
39*e1eccf28SAndroid Build Coastguard Worker     int status;
40*e1eccf28SAndroid Build Coastguard Worker     status = pthread_mutex_lock(&mMutex);
41*e1eccf28SAndroid Build Coastguard Worker     if (status) {
42*e1eccf28SAndroid Build Coastguard Worker         ALOGE("Mutex: error %i locking.", status);
43*e1eccf28SAndroid Build Coastguard Worker         return false;
44*e1eccf28SAndroid Build Coastguard Worker     }
45*e1eccf28SAndroid Build Coastguard Worker     return true;
46*e1eccf28SAndroid Build Coastguard Worker }
47*e1eccf28SAndroid Build Coastguard Worker 
unlock()48*e1eccf28SAndroid Build Coastguard Worker bool Mutex::unlock() {
49*e1eccf28SAndroid Build Coastguard Worker     int status;
50*e1eccf28SAndroid Build Coastguard Worker     status = pthread_mutex_unlock(&mMutex);
51*e1eccf28SAndroid Build Coastguard Worker     if (status) {
52*e1eccf28SAndroid Build Coastguard Worker         ALOGE("Mutex error %i unlocking.", status);
53*e1eccf28SAndroid Build Coastguard Worker         return false;
54*e1eccf28SAndroid Build Coastguard Worker     }
55*e1eccf28SAndroid Build Coastguard Worker     return true;
56*e1eccf28SAndroid Build Coastguard Worker }
57*e1eccf28SAndroid Build Coastguard Worker 
58*e1eccf28SAndroid Build Coastguard Worker } // namespace renderscript
59*e1eccf28SAndroid Build Coastguard Worker } // namespace android
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