1 files changed, 99 insertions, 0 deletions
diff --git a/sys/fs/tmpfs/tmpfs_fifoops.c b/sys/fs/tmpfs/tmpfs_fifoops.c
new file mode 100644
index 0000000..347732b
--- /dev/null
+++ b/sys/fs/tmpfs/tmpfs_fifoops.c
@@ -0,0 +1,99 @@
+/*	$NetBSD: tmpfs_fifoops.c,v 1.5 2005/12/11 12:24:29 christos Exp $	*/
+
+/*-
+ * Copyright (c) 2005 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Julio M. Merino Vidal, developed as part of Google's Summer of Code
+ * 2005 program.
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+/*
+ * tmpfs vnode interface for named pipes.
+ */
+#include <sys/cdefs.h>
+ __FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/filedesc.h>
+#include <sys/proc.h>
+#include <sys/vnode.h>
+
+#include <vm/vm.h>
+#include <vm/vm_object.h>
+
+#include <fs/tmpfs/tmpfs.h>
+#include <fs/tmpfs/tmpfs_fifoops.h>
+#include <fs/tmpfs/tmpfs_vnops.h>
+
+/* --------------------------------------------------------------------- */
+
+static int
+tmpfs_fifo_kqfilter(struct vop_kqfilter_args *ap)
+{
+	struct vnode *vp;
+	struct tmpfs_node *node;
+
+	vp = ap->a_vp;
+	node = VP_TO_TMPFS_NODE(vp);
+
+	switch (ap->a_kn->kn_filter){
+	case EVFILT_READ:
+		node->tn_status |= TMPFS_NODE_ACCESSED;
+		break;
+	case EVFILT_WRITE:
+		node->tn_status |= TMPFS_NODE_MODIFIED;
+		break;
+	}
+
+	return fifo_specops.vop_kqfilter(ap);
+}
+
+/* --------------------------------------------------------------------- */
+
+static int
+tmpfs_fifo_close(struct vop_close_args *v)
+{
+	struct tmpfs_node *node;
+	node = VP_TO_TMPFS_NODE(v->a_vp);
+	node->tn_status |= TMPFS_NODE_ACCESSED;
+
+	tmpfs_update(v->a_vp);
+	return fifo_specops.vop_close(v);
+}
+
+/*
+ * vnode operations vector used for fifos stored in a tmpfs file system.
+ */
+struct vop_vector tmpfs_fifoop_entries = {
+	.vop_default =			&fifo_specops,
+	.vop_close =			tmpfs_fifo_close,
+	.vop_reclaim =			tmpfs_reclaim,
+	.vop_access =			tmpfs_access,
+	.vop_getattr =			tmpfs_getattr,
+	.vop_setattr =			tmpfs_setattr,
+	.vop_kqfilter =			tmpfs_fifo_kqfilter,
+};
+