* Introduce notify_query_entry_moved to the fs_interface API.
axeld added a hook to the query parser (then in BFS) in hrev34317
to directly handle moves/renames, but just sent notifications for
it as B_ENTRY_REMOVED + B_ENTRY_CREATED (which is in fact the same
exact thing BeOS R5 did, I tested). We need to preserve that ABI/API,
unless flags that didn't exist on BeOS R5 are set.
* Rework notify_query_attr_changed to notify_query_attribute_changed.
This method is Haiku-specific (it was added in hrev39131), but it
wasn't very useful: it only sent the name of the file, not the name
of the attribute that changed.
It now sends the name of the attribute along with an "int32 cause",
same as notify_attribute_changed does.
* Rename the private flag B_ATTR_CHANGE_NOTIFICATION to B_QUERY_WATCH_ALL.
This better describes what it does (it's analogous to the B_WATCH_ALL
node_monitor flag). Probably we should make it public at some point...
(although probably at a lower value.)
* Overhaul QueryParser notifications logic to implement WATCH_ALL
properly, make use of the new and improved notification methods,
and to deduplify some logic.
This makes it possible to use queries with B_QUERY_WATCH_ALL
in a similar fashion to watching a directory node with B_WATCH_CHILDREN,
avoiding the need to watch every single node individually.
Augustin Cavalier
7e740f61ac