* Cleared up a misconception in the notification mechanism. We already had

methods that used an "event mask" field. There was no need to introduce
  a "flags" field for the same purpose.
* Renamed protected DefaultNotificationService methods (removed "_" prefix).
* Adjusted the code providing a notification service accordingly.
* Changed the event message several notification services generated by renaming
  the "opcode" field to "event".
* Implemented the TEAM_ADDED event and also added a TEAM_EXEC event.
* Added notifications for threads and images.
* Added visitor-like iteration functions for teams, threads, and images.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30126 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/thread.h

@@ -23,6 +23,12 @@ struct select_info;
 struct thread_creation_attributes;
 
 
+// thread notifications
+#define THREAD_MONITOR	'_tm_'
+#define THREAD_ADDED	0x01
+#define THREAD_REMOVED	0x02
+
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -70,6 +76,10 @@ thread_is_idle_thread(struct thread *thread)
 	return thread->entry == NULL;
 }
 
+typedef bool (*thread_iterator_callback)(struct thread* thread, void* cookie);
+struct thread* thread_iterate_through_threads(thread_iterator_callback callback,
+	void* cookie);
+
 thread_id allocate_thread_id(void);
 thread_id peek_next_thread_id(void);