52 lines
2.1 KiB
C
52 lines
2.1 KiB
C
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/*
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* Copyright (c) 2004-2016 Maxim Sobolev <sobomax@FreeBSD.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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* $FreeBSD$
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*/
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struct mkuz_fifo_queue {
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pthread_mutex_t mtx;
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pthread_cond_t cvar;
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struct mkuz_bchain_link *first;
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struct mkuz_bchain_link *last;
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int length;
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int wakeup_len;
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};
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struct mkuz_blk;
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struct mkuz_bchain_link;
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DEFINE_RAW_METHOD(cmp_cb, int, const struct mkuz_blk *, void *);
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struct mkuz_fifo_queue *mkuz_fqueue_ctor(int);
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void mkuz_fqueue_enq(struct mkuz_fifo_queue *, struct mkuz_blk *);
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struct mkuz_blk *mkuz_fqueue_deq(struct mkuz_fifo_queue *);
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struct mkuz_blk *mkuz_fqueue_deq_when(struct mkuz_fifo_queue *, cmp_cb_t, void *);
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#if defined(NOTYET)
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struct mkuz_bchain_link *mkuz_fqueue_deq_all(struct mkuz_fifo_queue *, int *);
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int mkuz_fqueue_enq_all(struct mkuz_fifo_queue *, struct mkuz_bchain_link *,
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struct mkuz_bchain_link *, int);
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#endif
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