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/* $OpenBSD: sioctl_priv.h,v 1.1 2020/02/26 13:53:58 ratchov Exp $ */
/*
* Copyright (c) 2014-2020 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 SIOCTL_PRIV_H
#define SIOCTL_PRIV_H
#include <sndio.h>
#define SIOCTL_MAXNFDS 4
/*
* private ``handle'' structure
*/
struct sioctl_hdl {
struct sioctl_ops *ops;
void (*desc_cb)(void *, struct sioctl_desc *, int);
void *desc_arg;
void (*ctl_cb)(void *, unsigned int, unsigned int);
void *ctl_arg;
unsigned int mode; /* SIOCTL_READ | SIOCTL_WRITE */
int nbio; /* true if non-blocking io */
int eof; /* true if error occured */
};
/*
* operations every device should support
*/
struct sioctl_ops {
void (*close)(struct sioctl_hdl *);
int (*nfds)(struct sioctl_hdl *);
int (*pollfd)(struct sioctl_hdl *, struct pollfd *, int);
int (*revents)(struct sioctl_hdl *, struct pollfd *);
int (*setctl)(struct sioctl_hdl *, unsigned int, unsigned int);
int (*onctl)(struct sioctl_hdl *);
int (*ondesc)(struct sioctl_hdl *);
};
struct sioctl_hdl *_sioctl_aucat_open(const char *, unsigned int, int);
struct sioctl_hdl *_sioctl_obsd_open(const char *, unsigned int, int);
struct sioctl_hdl *_sioctl_fake_open(const char *, unsigned int, int);
struct sioctl_hdl *_sioctl_sun_open(const char *, unsigned int, int);
void _sioctl_create(struct sioctl_hdl *,
struct sioctl_ops *, unsigned int, int);
void _sioctl_ondesc_cb(struct sioctl_hdl *,
struct sioctl_desc *, unsigned int);
void _sioctl_onval_cb(struct sioctl_hdl *, unsigned int, unsigned int);
int _sioctl_psleep(struct sioctl_hdl *, int);
#endif /* !defined(SIOCTL_PRIV_H) */
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