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