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  1. /*
  2.  * Copyright (c) 2009 Lukas Mejdrech
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup net
  30.  *  @{
  31.  */
  32.  
  33. /** @file
  34.  */
  35.  
  36. #ifndef __NET_DYNAMIC_FIFO_H__
  37. #define __NET_DYNAMIC_FIFO_H__
  38.  
  39. /* For possitive values only */
  40.  
  41. typedef struct dyn_fifo dyn_fifo_t;
  42. typedef dyn_fifo_t *    dyn_fifo_ref;
  43.  
  44. struct dyn_fifo{
  45.     int *   items;
  46.     int     size;
  47.     int     head;
  48.     int     tail;
  49.     int     magic_value;
  50. };
  51.  
  52. int dyn_fifo_initialize( dyn_fifo_ref fifo, int size );
  53.  
  54. int dyn_fifo_push( dyn_fifo_ref fifo, int value, int max_size );
  55.  
  56. int dyn_fifo_pop( dyn_fifo_ref fifo );
  57.  
  58. int dyn_fifo_value( dyn_fifo_ref fifo );
  59.  
  60. int dyn_fifo_destroy( dyn_fifo_ref fifo );
  61.  
  62. #endif
  63.  
  64. /** @}
  65.  */
  66.