/*-
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* Copyright (c) 2012-2013 Jan Breuer,
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*
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* All Rights Reserved
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file scpi_fifo.h
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* @date Thu Nov 15 10:58:45 UTC 2012
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*
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* @brief basic FIFO implementation
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*
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*
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*/
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#ifndef SCPI_FIFO_H
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#define SCPI_FIFO_H
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#include "scpi/types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define FIFO_SIZE 16
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struct _fifo_t {
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int16_t wr;
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int16_t rd;
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int16_t size;
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int16_t data[FIFO_SIZE];
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};
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typedef struct _fifo_t fifo_t;
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void fifo_init(fifo_t * fifo);
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void fifo_clear(fifo_t * fifo);
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bool_t fifo_add(fifo_t * fifo, int16_t value);
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bool_t fifo_remove(fifo_t * fifo, int16_t * value);
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bool_t fifo_count(fifo_t * fifo, int16_t * value);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SCPI_FIFO_H */
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