mirror of https://github.com/ericonr/sndio.git
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
/* $OpenBSD: mio_priv.h,v 1.4 2009/08/21 16:48:03 ratchov Exp $ */
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/*
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* Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef MIO_PRIV_H
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#define MIO_PRIV_H
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#include <sys/param.h>
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#include "sndio.h"
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#ifdef DEBUG
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#define DPRINTF(...) \
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do { \
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if (mio_debug > 0) \
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fprintf(stderr, __VA_ARGS__); \
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} while(0)
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#define DPERROR(s) \
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do { \
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if (mio_debug > 0) \
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perror(s); \
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} while(0)
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#else
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#define DPRINTF(...) do {} while(0)
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#define DPERROR(s) do {} while(0)
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#endif
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/*
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* private ``handle'' structure
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*/
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struct mio_hdl {
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struct mio_ops *ops;
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unsigned mode; /* MIO_IN | MIO_OUT */
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int nbio; /* true if non-blocking io */
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int eof; /* true if error occured */
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};
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/*
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* operations every device should support
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*/
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struct mio_ops {
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void (*close)(struct mio_hdl *);
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size_t (*write)(struct mio_hdl *, const void *, size_t);
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size_t (*read)(struct mio_hdl *, void *, size_t);
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int (*pollfd)(struct mio_hdl *, struct pollfd *, int);
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int (*revents)(struct mio_hdl *, struct pollfd *);
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};
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struct mio_hdl *mio_open_rmidi(const char *, unsigned, int);
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struct mio_hdl *mio_open_thru(const char *, unsigned, int);
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struct mio_hdl *mio_open_aucat(const char *, unsigned, int);
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void mio_create(struct mio_hdl *, struct mio_ops *, unsigned, int);
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void mio_destroy(struct mio_hdl *);
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#ifdef DEBUG
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extern int mio_debug;
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#endif
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#endif /* !defined(MIO_PRIV_H) */
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