LXR uboot/include/circbuf.h

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