48 lines
1.9 KiB
C
48 lines
1.9 KiB
C
/* $OpenBSD: aucat.h,v 1.8 2019/07/05 22:53:47 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 AUCAT_H
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#define AUCAT_H
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#include "amsg.h"
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struct aucat {
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int fd; /* socket */
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struct amsg rmsg, wmsg; /* temporary messages */
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size_t wtodo, rtodo; /* bytes to complete the packet */
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#define RSTATE_MSG 0 /* message being received */
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#define RSTATE_DATA 1 /* data being received */
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unsigned rstate; /* one of above */
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#define WSTATE_IDLE 2 /* nothing to do */
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#define WSTATE_MSG 3 /* message being transferred */
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#define WSTATE_DATA 4 /* data being transferred */
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unsigned wstate; /* one of above */
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unsigned maxwrite; /* bytes we're allowed to write */
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};
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int _aucat_rmsg(struct aucat *, int *);
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int _aucat_wmsg(struct aucat *, int *);
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size_t _aucat_rdata(struct aucat *, void *, size_t, int *);
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size_t _aucat_wdata(struct aucat *, const void *, size_t, unsigned, int *);
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int _aucat_open(struct aucat *, const char *, unsigned);
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void _aucat_close(struct aucat *, int);
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int _aucat_pollfd(struct aucat *, struct pollfd *, int);
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int _aucat_revents(struct aucat *, struct pollfd *);
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int _aucat_setfl(struct aucat *, int, int *);
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#endif /* !defined(AUCAT_H) */
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