[thirdparty/u-boot.git] / include / circbuf.h

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

#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
83d290c5	1	/* SPDX-License-Identifier: GPL-2.0+ */
232c150a WD	2	/*
	3	* (C) Copyright 2003
	4	* Gerry Hamel, geh@ti.com, Texas Instruments
232c150a WD	5	*/
	6
	7	#ifndef __CIRCBUF_H__
	8	#define __CIRCBUF_H__
	9
	10	typedef 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
	21	int buf_init (circbuf_t * buf, unsigned int size);
	22	int buf_free (circbuf_t * buf);
	23	int buf_pop (circbuf_t * buf, char *dest, unsigned int len);
	24	int buf_push (circbuf_t * buf, const char *src, unsigned int len);
	25
	26	#endif