1 /*-
2  * Copyright (c) 2006 Verdens Gang AS
3  * Copyright (c) 2006-2011 Varnish Software AS
4  * All rights reserved.
5  *
6  * Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
7  *
8  * SPDX-License-Identifier: BSD-2-Clause
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  * Private include file for the pool aware code.
32  */
33 
34 VTAILQ_HEAD(taskhead, pool_task);
35 
36 struct poolsock;
37 
38 struct pool {
39 	unsigned			magic;
40 #define POOL_MAGIC			0x606658fa
41 	VTAILQ_ENTRY(pool)		list;
42 	VTAILQ_HEAD(,poolsock)		poolsocks;
43 
44 	int				die;
45 	pthread_cond_t			herder_cond;
46 	pthread_t			herder_thr;
47 
48 	struct lock			mtx;
49 	unsigned			nidle;
50 	struct taskhead			idle_queue;
51 	struct taskhead			queues[TASK_QUEUE__END];
52 	unsigned			nthr;
53 	unsigned			lqueue;
54 	uintmax_t			sdropped;
55 	uintmax_t			rdropped;
56 	uintmax_t			nqueued;
57 	uintmax_t			ndequeued;
58 	struct VSC_main_wrk		*a_stat;
59 	struct VSC_main_wrk		*b_stat;
60 
61 	struct mempool			*mpl_req;
62 	struct mempool			*mpl_sess;
63 	struct waiter			*waiter;
64 };
65 
66 void *pool_herder(void*);
67 task_func_t pool_stat_summ;
68 extern struct lock			pool_mtx;
69 void VCA_NewPool(struct pool *);
70 void VCA_DestroyPool(struct pool *);
71