1/*
2 * Copyright (c) 1982, 1986, 1988, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)uipc_socket2.c 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: head/sys/kern/uipc_sockbuf.c 92751 2002-03-20 04:09:59Z jeff $
35 */
36
37#include "opt_param.h"
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/domain.h>
41#include <sys/file.h> /* for maxfiles */
42#include <sys/kernel.h>

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50#include <sys/stat.h>
51#include <sys/socket.h>
52#include <sys/socketvar.h>
53#include <sys/signalvar.h>
54#include <sys/sysctl.h>
55#include <sys/aio.h> /* for aio_swake proto */
56#include <sys/event.h>
57
58void (*aio_swake)(struct socket *, struct sockbuf *);
59
60/*
61 * Primitive routines for operating on sockets and socket buffers
62 */
63
64u_long sb_max = SB_MAX; /* XXX should be static */
65

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997SYSCTL_NODE(_kern, KERN_IPC, ipc, CTLFLAG_RW, 0, "IPC");
998
999/* This takes the place of kern.maxsockbuf, which moved to kern.ipc. */
1000static int dummy;
1001SYSCTL_INT(_kern, KERN_DUMMY, dummy, CTLFLAG_RW, &dummy, 0, "");
1002
1003SYSCTL_INT(_kern_ipc, KIPC_MAXSOCKBUF, maxsockbuf, CTLFLAG_RW,
1004 &sb_max, 0, "Maximum socket buffer size");
1005SYSCTL_INT(_kern_ipc, KIPC_SOCKBUF_WASTE, sockbuf_waste_factor, CTLFLAG_RW,
1006 &sb_efficiency, 0, "");