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/* $OpenBSD: mio_priv.h,v 1.4 2009/08/21 16:48:03 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 MIO_PRIV_H
#define MIO_PRIV_H
#include <sys/param.h>
#include "sndio.h"
#ifdef DEBUG
#define DPRINTF(...) \
do { \
if (mio_debug > 0) \
fprintf(stderr, __VA_ARGS__); \
} while(0)
#define DPERROR(s) \
do { \
if (mio_debug > 0) \
perror(s); \
} while(0)
#else
#define DPRINTF(...) do {} while(0)
#define DPERROR(s) do {} while(0)
#endif
/*
* private ``handle'' structure
*/
struct mio_hdl {
struct mio_ops *ops;
unsigned mode; /* MIO_IN | MIO_OUT */
int nbio; /* true if non-blocking io */
int eof; /* true if error occured */
};
/*
* operations every device should support
*/
struct mio_ops {
void (*close)(struct mio_hdl *);
size_t (*write)(struct mio_hdl *, const void *, size_t);
size_t (*read)(struct mio_hdl *, void *, size_t);
int (*pollfd)(struct mio_hdl *, struct pollfd *, int);
int (*revents)(struct mio_hdl *, struct pollfd *);
};
struct mio_hdl *mio_open_rmidi(const char *, unsigned, int);
struct mio_hdl *mio_open_thru(const char *, unsigned, int);
struct mio_hdl *mio_open_aucat(const char *, unsigned, int);
void mio_create(struct mio_hdl *, struct mio_ops *, unsigned, int);
void mio_destroy(struct mio_hdl *);
#ifdef DEBUG
extern int mio_debug;
#endif
#endif /* !defined(MIO_PRIV_H) */
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