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