50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
|
|
* Copyright (C) 2011 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ANDROID_RS_FIFO_H
|
|
#define ANDROID_RS_FIFO_H
|
|
|
|
|
|
#include "rsUtils.h"
|
|
|
|
namespace android {
|
|
namespace renderscript {
|
|
|
|
|
|
// A simple FIFO to be used as a producer / consumer between two
|
|
// threads. One is writer and one is reader. The common cases
|
|
// will not require locking. It is not threadsafe for multiple
|
|
// readers or writers by design.
|
|
|
|
class Fifo {
|
|
protected:
|
|
Fifo();
|
|
virtual ~Fifo();
|
|
|
|
public:
|
|
bool virtual writeAsync(const void *data, size_t bytes, bool waitForSpace = true) = 0;
|
|
void virtual writeWaitReturn(void *ret, size_t retSize) = 0;
|
|
size_t virtual read(void *data, size_t bytes, bool doWait = true, uint64_t timeToWait = 0) = 0;
|
|
void virtual readReturn(const void *data, size_t bytes) = 0;
|
|
|
|
void virtual flush() = 0;
|
|
|
|
};
|
|
|
|
} // namespace renderscript
|
|
} // namespace android
|
|
#endif
|