1 /*
2  * Copyright (C) 2011 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_FIFO_SOCKET_H
18 #define ANDROID_RS_FIFO_SOCKET_H
19 
20 
21 #include "rsFifo.h"
22 
23 namespace android {
24 namespace renderscript {
25 
26 
27 class FifoSocket {
28 public:
29     FifoSocket();
30     virtual ~FifoSocket();
31 
32     bool init(bool supportNonBlocking = true,
33               bool supportReturnValues = true,
34               size_t maxDataSize = 0);
35     void shutdown();
36 
37     bool writeAsync(const void *data, size_t bytes, bool waitForSpace = true);
38     void writeWaitReturn(void *ret, size_t retSize);
39     size_t read(void *data, size_t bytes);
40     void readReturn(const void *data, size_t bytes);
41     bool isEmpty();
42 
getWriteFd()43     int getWriteFd() {return sv[0];}
getReadFd()44     int getReadFd() {return sv[1];}
45 
46 protected:
47     int sv[2];
48     bool mShutdown;
49 };
50 
51 } // namespace renderscript
52 } // namespace android
53 
54 #endif
55