/*
   * (C) Copyright 2003
   * Gerry Hamel, geh@ti.com, Texas Instruments
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307	 USA
   *
   */
  
  #ifndef __CIRCBUF_H__
  #define __CIRCBUF_H__
  
  typedef struct circbuf {
  	unsigned int size;	/* current number of bytes held */
  	unsigned int totalsize; /* number of bytes allocated */
  
  	char *top;		/* pointer to current buffer start */
  	char *tail;		/* pointer to space for next element */
  
  	char *data;		/* all data */
  	char *end;		/* end of data buffer */
  } circbuf_t;
  
  int buf_init (circbuf_t * buf, unsigned int size);
  int buf_free (circbuf_t * buf);
  int buf_pop (circbuf_t * buf, char *dest, unsigned int len);
  int buf_push (circbuf_t * buf, const char *src, unsigned int len);
  
  #endif