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1af29a6e96
end up writing zero bytes, sleep for 1/10 of a second so that we don't end up using up too much cpu. This should only ever happen on systems that wrongly report a descriptor as writable despite the tty buffer being full. Discussed with: Jeff Evarts o Do an initial run-time check to see if select() alters the passed timeval. This knowledge isn't yet used, but will be soon.
52 lines
2.2 KiB
C
52 lines
2.2 KiB
C
/*-
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* Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: descriptor.h,v 1.3 1998/05/23 22:24:34 brian Exp $
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*/
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#define PHYSICAL_DESCRIPTOR (1)
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#define SERVER_DESCRIPTOR (2)
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#define PROMPT_DESCRIPTOR (3)
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#define CHAT_DESCRIPTOR (4)
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#define DATALINK_DESCRIPTOR (5)
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#define BUNDLE_DESCRIPTOR (6)
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#define MPSERVER_DESCRIPTOR (7)
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struct bundle;
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struct descriptor {
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int type;
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int (*UpdateSet)(struct descriptor *, fd_set *, fd_set *, fd_set *, int *);
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int (*IsSet)(struct descriptor *, const fd_set *);
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void (*Read)(struct descriptor *, struct bundle *, const fd_set *);
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int (*Write)(struct descriptor *, struct bundle *, const fd_set *);
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};
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#define descriptor_UpdateSet(d, r, w, e, n) ((*(d)->UpdateSet)(d, r, w, e, n))
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#define descriptor_IsSet(d, s) ((*(d)->IsSet)(d, s))
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#define descriptor_Read(d, b, f) ((*(d)->Read)(d, b, f))
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#define descriptor_Write(d, b, f) ((*(d)->Write)(d, b, f))
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