Implement client side NFS locks.

Obtained from: BSD/os
Import Ok'd by: mckusick, jkh, motd on builder.freebsd.org

1 files changed, 45 insertions, 0 deletions

diff --git a/sys/nfsclient/nlminfo.h b/sys/nfsclient/nlminfo.h
new file mode 100644
index 0000000..79c6e17
--- /dev/null
+++ b/sys/nfsclient/nlminfo.h
@@ -0,0 +1,45 @@
+/*-
+ * Copyright (c) 1998 Berkeley Software Design, Inc. 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.
+ * 3. Berkeley Software Design Inc's name may not be used to endorse or
+ *    promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``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 BERKELEY SOFTWARE DESIGN INC 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.
+ *
+ *      from BSDI nlminfo.h,v 2.1 1998/03/18 01:30:38 don Exp
+ * $FreeBSD$
+ */
+
+/*
+ * Misc NLM informationi, some needed for the master lockd process, and some
+ * needed by every process doing nlm based locking.
+ */
+struct  nlminfo {
+	/* these are used by any process doing nlm locking */
+        int             msg_seq;        /* sequence counter for lock requests */
+        int             retcode;        /* return code for lock requests */
+	int		set_getlk_pid;
+	int		getlk_pid;
+        struct  timeval pid_start;      /* process starting time */
+};
+
+extern void nlminfo_release __P((struct proc *p));
+