/*     Ringbuffer Implementation for gtvscreen    Copyright (C) 2000 Marcus Metzler (mocm@metzlerbros.de)    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., 675 Mass Ave, Cambridge, MA 02139, USA.*/#ifndef RINGBUFFY_H#define RINGBUFFY_H#include <stdio.h>#include <stdlib.h>#include <unistd.h>#ifdef __cplusplusextern "C" {#endif				/* __cplusplus */#define FULL_BUFFER  -1000typedef struct ringbuffy{	int read_pos;	int write_pos;	int size;	char *buffy;} ringbuffy;int  ring_init (ringbuffy *rbuf, int size);void ring_destroy(ringbuffy *rbuf);int ring_write(ringbuffy *rbuf, char *data, int count);int ring_read(ringbuffy *rbuf, char *data, int count);int ring_write_file(ringbuffy *rbuf, int fd, int count);int ring_read_file(ringbuffy *rbuf, int fd, int count);int ring_rest(ringbuffy *rbuf);int ring_peek(ringbuffy *rbuf, char *data, int count, long off);#ifdef __cplusplus}#endif				/* __cplusplus */#endif /* RINGBUFFY_H */