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Diffstat (limited to 'libs/rs/rsFifo.h')
-rw-r--r-- | libs/rs/rsFifo.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/libs/rs/rsFifo.h b/libs/rs/rsFifo.h new file mode 100644 index 0000000..f924b95 --- /dev/null +++ b/libs/rs/rsFifo.h @@ -0,0 +1,49 @@ +/* + * 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 |