NodeMonitor: Added B_WATCH_CHILDREN flag.

* Added a directory argument for notify_{stat/attribute}_changed().
* This allows to watch only a directory, and get the notifications for
  all of its files, not just add/remove entry notifications.

headers/os/drivers/fs_interface.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2004-2014, Haiku Inc. All Rights Reserved.
+ * Copyright 2004-2016, Haiku Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef _FS_INTERFACE_H
@@ -358,10 +358,10 @@ extern status_t notify_entry_removed(dev_t device, ino_t directory,
 extern status_t notify_entry_moved(dev_t device, ino_t fromDirectory,
 					const char* fromName, ino_t toDirectory,
 					const char* toName, ino_t node);
-extern status_t notify_stat_changed(dev_t device, ino_t node,
+extern status_t notify_stat_changed(dev_t device, ino_t directory, ino_t node,
 					uint32 statFields);
-extern status_t notify_attribute_changed(dev_t device, ino_t node,
-					const char* attribute, int32 cause);
+extern status_t notify_attribute_changed(dev_t device, ino_t directory,
+					ino_t node, const char* attribute, int32 cause);
 
 extern status_t notify_query_entry_created(port_id port, int32 token,
 					dev_t device, ino_t directory, const char* name,

headers/os/kernel/fs_info.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2003, Haiku Inc. All Rights Reserved.
+ * Copyright 2002-2016, Haiku Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef _FS_INFO_H
@@ -20,6 +20,7 @@
 #define B_FS_HAS_SELF_HEALING_LINKS		0x00080000
 #define B_FS_HAS_ALIASES				0x00100000
 #define B_FS_SUPPORTS_NODE_MONITORING	0x00200000
+#define B_FS_SUPPORTS_MONITOR_CHILDREN	0x00400000
 
 typedef struct fs_info {
 	dev_t	dev;								/* volume dev_t */

headers/os/storage/NodeMonitor.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2003-2010 Haiku Inc. All rights reserved.
+ * Copyright 2003-2016 Haiku Inc. All rights reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef _NODE_MONITOR_H
@@ -23,7 +23,8 @@ enum {
 	B_WATCH_ALL				= 0x000f,
 
 	B_WATCH_MOUNT			= 0x0010,
-	B_WATCH_INTERIM_STAT	= 0x0020
+	B_WATCH_INTERIM_STAT	= 0x0020,
+	B_WATCH_CHILDREN		= 0x0040
 };
 
 

headers/private/fs_shell/fssh_api_wrapper.h

@@ -895,6 +895,7 @@
 #define B_FS_HAS_SELF_HEALING_LINKS		FSSH_B_FS_HAS_SELF_HEALING_LINKS
 #define B_FS_HAS_ALIASES				FSSH_B_FS_HAS_ALIASES
 #define B_FS_SUPPORTS_NODE_MONITORING	FSSH_B_FS_SUPPORTS_NODE_MONITORING
+#define B_FS_SUPPORTS_MONITOR_CHILDREN	FSSH_B_FS_SUPPORTS_MONITOR_CHILDREN
 
 #define fs_info	fssh_fs_info
 

headers/private/fs_shell/fssh_fs_info.h

@@ -21,6 +21,7 @@
 #define FSSH_B_FS_HAS_SELF_HEALING_LINKS	0x00080000
 #define FSSH_B_FS_HAS_ALIASES				0x00100000
 #define FSSH_B_FS_SUPPORTS_NODE_MONITORING	0x00200000
+#define FSSH_B_FS_SUPPORTS_MONITOR_CHILDREN	0x00400000
 
 typedef struct fssh_fs_info {
 	fssh_dev_t	dev;								/* volume dev_t */

headers/private/fs_shell/fssh_fs_interface.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2004-2008, Haiku Inc. All Rights Reserved.
+ * Copyright 2004-2016, Haiku Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef _FSSH_FS_INTERFACE_H
@@ -395,9 +395,10 @@ extern fssh_status_t fssh_notify_entry_moved(fssh_mount_id device,
 				fssh_vnode_id toDirectory, const char *toName,
 				fssh_vnode_id node);
 extern fssh_status_t fssh_notify_stat_changed(fssh_mount_id device,
-				fssh_vnode_id node, uint32_t statFields);
+				fssh_vnode_id dir, fssh_vnode_id node, uint32_t statFields);
 extern fssh_status_t fssh_notify_attribute_changed(fssh_mount_id device,
-				fssh_vnode_id node, const char *attribute, int32_t cause);
+				fssh_vnode_id dir, fssh_vnode_id node, const char *attribute,
+				int32_t cause);
 
 extern fssh_status_t fssh_notify_query_entry_created(fssh_port_id port,
 				int32_t token, fssh_mount_id device,