Add support for read/write node locking

LoopbackFS-C/loopback/loopback.c

@@ -909,7 +909,7 @@ loopback_renamex(const char *path1, const char *path2, unsigned int flags)
 void *
 loopback_init(struct fuse_conn_info *conn)
 {
-    conn->want |= FUSE_CAP_VOL_RENAME | FUSE_CAP_XTIMES;
+    conn->want |= FUSE_CAP_VOL_RENAME | FUSE_CAP_XTIMES | FUSE_CAP_NODE_RWLOCK;
 
 #ifdef FUSE_ENABLE_CASE_INSENSITIVE
     if (loopback.case_insensitive) {

LoopbackFS-ObjC/LICENSE.txt

@@ -1,5 +1,5 @@
 Copyright 2007-2008 Google Inc.
-Copyright 2011-2021 Benjamin Fleischer
+Copyright 2011-2022 Benjamin Fleischer
 
 Licensed under the Apache License, Version 2.0 (the "License"); you may not  use
 this file except in compliance with the License. You may obtain  a copy  of  the

LoopbackFS-ObjC/LoopbackFS/LoopbackFS.m

@@ -338,6 +338,9 @@
     [attribs setObject:[NSNumber numberWithBool:YES]
                 forKey:kGMUserFileSystemVolumeSupportsSetVolumeNameKey];
 
+    [attribs setObject:[NSNumber numberWithBool:YES]
+                forKey:kGMUserFileSystemVolumeSupportsReadWriteNodeLockingKey];
+
     return attribs;
   }
   return nil;

LoopbackFS-Swift/LICENSE.txt

@@ -1,5 +1,5 @@
 Copyright 2017 KF Interactive GmbH
-Copyright 2018-2021 Benjamin Fleischer
+Copyright 2018-2022 Benjamin Fleischer
 
 Redistribution and use in source and binary forms, with or without modification,
 are permitted provided that the following conditions are met:

LoopbackFS-Swift/LoopbackFS/LoopbackFS.swift

@@ -237,6 +237,8 @@ final class LoopbackFS: NSObject {
 
         attributes[FileAttributeKey(rawValue: kGMUserFileSystemVolumeSupportsSetVolumeNameKey)] = true
 
+        attributes[FileAttributeKey(rawValue: kGMUserFileSystemVolumeSupportsReadWriteNodeLockingKey)] = true
+
         return attributes
     }