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 #ifndef ANDROID_RS_SIGNAL_H
18 #define ANDROID_RS_SIGNAL_H
19 
20 
21 #include "rsUtils.h"
22 
23 namespace android {
24 namespace renderscript {
25 
26 class Signal {
27 public:
28     Signal();
29     ~Signal();
30 
31     bool init();
32 
33     void set();
34 
35     // returns true if the signal occured
36     // false for timeout
37     bool wait(uint64_t timeout = 0);
38 
39 protected:
40     bool mSet;
41     pthread_mutex_t mMutex;
42     pthread_cond_t mCondition;
43 };
44 
45 }
46 }
47 
48 #endif
49 
50