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/* $OpenBSD: pipe.h,v 1.6 2012/04/11 06:05:43 ratchov Exp $ */
/*
* Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef PIPE_H
#define PIPE_H
#include "file.h"
struct pipe {
struct file file;
int fd; /* file descriptor */
};
extern struct fileops pipe_ops;
struct pipe *pipe_new(struct fileops *, int, char *);
void pipe_close(struct file *);
unsigned int pipe_read(struct file *, unsigned char *, unsigned int);
unsigned int pipe_write(struct file *, unsigned char *, unsigned int);
int pipe_nfds(struct file *);
int pipe_pollfd(struct file *, struct pollfd *, int);
int pipe_revents(struct file *, struct pollfd *);
int pipe_seek(struct file *, off_t);
int pipe_trunc(struct file *, off_t);
off_t pipe_endpos(struct file *);
#endif /* !defined(PIPE_H) */
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