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/*
* 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:
void virtual writeAsync(const void *data, size_t bytes) = 0;
void virtual writeWaitReturn(void *ret, size_t retSize) = 0;
size_t virtual read(void *data, size_t bytes) = 0;
void virtual readReturn(const void *data, size_t bytes) = 0;
void virtual flush() = 0;
};
}
}
#endif
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