1 /* $NetBSD: tmpfs_fifoops.c,v 1.5 2005/12/11 12:24:29 christos Exp $ */
4 * Copyright (c) 2005 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Julio M. Merino Vidal, developed as part of Google's Summer of Code
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
34 * tmpfs vnode interface for named pipes.
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
39 #include <sys/param.h>
40 #include <sys/filedesc.h>
42 #include <sys/vnode.h>
45 #include <vm/vm_object.h>
47 #include <fs/tmpfs/tmpfs.h>
48 #include <fs/tmpfs/tmpfs_fifoops.h>
49 #include <fs/tmpfs/tmpfs_vnops.h>
51 /* --------------------------------------------------------------------- */
54 tmpfs_fifo_kqfilter(struct vop_kqfilter_args *ap)
57 struct tmpfs_node *node;
60 node = VP_TO_TMPFS_NODE(vp);
62 switch (ap->a_kn->kn_filter){
64 node->tn_status |= TMPFS_NODE_ACCESSED;
67 node->tn_status |= TMPFS_NODE_MODIFIED;
71 return fifo_specops.vop_kqfilter(ap);
74 /* --------------------------------------------------------------------- */
77 tmpfs_fifo_close(struct vop_close_args *v)
79 struct tmpfs_node *node;
80 node = VP_TO_TMPFS_NODE(v->a_vp);
81 node->tn_status |= TMPFS_NODE_ACCESSED;
83 tmpfs_update(v->a_vp);
84 return fifo_specops.vop_close(v);
88 * vnode operations vector used for fifos stored in a tmpfs file system.
90 struct vop_vector tmpfs_fifoop_entries = {
91 .vop_default = &fifo_specops,
92 .vop_close = tmpfs_fifo_close,
93 .vop_reclaim = tmpfs_reclaim,
94 .vop_access = tmpfs_access,
95 .vop_getattr = tmpfs_getattr,
96 .vop_setattr = tmpfs_setattr,
97 .vop_kqfilter = tmpfs_fifo_kqfilter,