60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
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* related information and legal notices. It is expected that any future
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* projects/authors will amend these files as needed.
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*
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* ---
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*
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* ioqueue.h: stores and frees data associated with a file descriptor.
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* uses writev to write, and read to read.
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*
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* Known contributors to this file:
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*
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*/
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#ifndef IOQUEUE_H
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#define IOQUEUE_H
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struct ioqueue {
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struct qelem queue; /* queue fwd/back */
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int bsize; /* basic block size */
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int cc; /* character count */
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};
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struct io {
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struct qelem queue; /* list of ioqueue elements */
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int nbytes; /* number of data bytes present */
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int offset; /* offset into current entry */
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char *data; /* pointer to start */
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};
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void ioq_init(struct ioqueue *ioq, int bsize);
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int ioq_peek(struct ioqueue *ioq, char *buf, int cc);
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int ioq_dequeue(struct ioqueue *ioq, int cc);
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int ioq_read(struct ioqueue *ioq, char *buf, int cc);
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void ioq_write(struct ioqueue *ioq, char *buf, int cc);
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int ioq_qsize(struct ioqueue *ioq);
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void ioq_drain(struct ioqueue *ioq);
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char *ioq_gets(struct ioqueue *ioq, char *buf, int cc, int *eol);
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#endif
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