/*
* Copyright (c) 2004-2016 Maxim Sobolev <sobomax@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
struct mkuz_fifo_queue {
pthread_mutex_t mtx;
pthread_cond_t cvar;
struct mkuz_bchain_link *first;
struct mkuz_bchain_link *last;
int length;
int wakeup_len;
};
struct mkuz_blk;
struct mkuz_bchain_link;
DEFINE_RAW_METHOD(cmp_cb, int, const struct mkuz_blk *, void *);
struct mkuz_fifo_queue *mkuz_fqueue_ctor(int);
void mkuz_fqueue_enq(struct mkuz_fifo_queue *, struct mkuz_blk *);
struct mkuz_blk *mkuz_fqueue_deq(struct mkuz_fifo_queue *);
struct mkuz_blk *mkuz_fqueue_deq_when(struct mkuz_fifo_queue *, cmp_cb_t, void *);
#if defined(NOTYET)
struct mkuz_bchain_link *mkuz_fqueue_deq_all(struct mkuz_fifo_queue *, int *);
int mkuz_fqueue_enq_all(struct mkuz_fifo_queue *, struct mkuz_bchain_link *,
struct mkuz_bchain_link *, int);
#endif
plain