1 files changed, 45 insertions, 0 deletions
diff --git a/libdiskfs/file-record-lock.c b/libdiskfs/file-record-lock.c
new file mode 100644
index 00000000..a3ce9f42
--- /dev/null
+++ b/libdiskfs/file-record-lock.c
@@ -0,0 +1,45 @@
+/* Copyright (C) 2001, 2014-2019 Free Software Foundation, Inc.
+
+   Written by Neal H Walfield <neal@cs.uml.edu>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with the GNU Hurd.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include "priv.h"
+#include "diskfs.h"
+#include "fs_S.h"
+
+#include <errno.h>
+#include <hurd/fshelp.h>
+
+error_t
+diskfs_S_file_record_lock (struct protid *cred,
+			   int cmd,
+			   struct flock64 *lock,
+			   mach_port_t rendezvous)
+{
+  struct node *node;
+  error_t err;
+
+  if (! cred)
+    return EOPNOTSUPP;
+
+  node = cred->po->np;
+  pthread_mutex_lock (&node->lock);
+  err = fshelp_rlock_tweak (&node->userlock, &node->lock,
+			    &cred->po->lock_status, cred->po->openstat,
+			    node->dn_stat.st_size, cred->po->filepointer,
+			    cmd, lock, rendezvous);
+  pthread_mutex_unlock (&node->lock);
+  return err;
+}