mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 17:58:23 +00:00
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
|
/*
|
||
|
|
* (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
|