LXR uboot/include/circbuf.h

   1/*
   2 * (C) Copyright 2003
   3 * Gerry Hamel, geh@ti.com, Texas Instruments
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#ifndef __CIRCBUF_H__
   9#define __CIRCBUF_H__
  10
  11typedef struct circbuf {
  12        unsigned int size;      /* current number of bytes held */
  13        unsigned int totalsize; /* number of bytes allocated */
  14
  15        char *top;              /* pointer to current buffer start */
  16        char *tail;             /* pointer to space for next element */
  17
  18        char *data;             /* all data */
  19        char *end;              /* end of data buffer */
  20} circbuf_t;
  21
  22int buf_init (circbuf_t * buf, unsigned int size);
  23int buf_free (circbuf_t * buf);
  24int buf_pop (circbuf_t * buf, char *dest, unsigned int len);
  25int buf_push (circbuf_t * buf, const char *src, unsigned int len);
  26
  27#endif
  28