[people/ms/u-boot.git] / include / circbuf.h

/*
 * (C) Copyright 2003
 * Gerry Hamel, geh@ti.com, Texas Instruments
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#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
Commit	Line	Data
232c150a WD	1	/*
	2	* (C) Copyright 2003
	3	* Gerry Hamel, geh@ti.com, Texas Instruments
	4	*
1a459660	5	* SPDX-License-Identifier: GPL-2.0+
232c150a WD	6	*/
	7
	8	#ifndef __CIRCBUF_H__
	9	#define __CIRCBUF_H__
	10
	11	typedef 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
	22	int buf_init (circbuf_t * buf, unsigned int size);
	23	int buf_free (circbuf_t * buf);
	24	int buf_pop (circbuf_t * buf, char *dest, unsigned int len);
	25	int buf_push (circbuf_t * buf, const char *src, unsigned int len);
	26
	27	#endif