* Don't trust a message that we got goes to a handler that belongs to us.

* when we terminate gracefully and in the looper's thread, we no longer
  unlock ourselves.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15155 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kits/interface/Window.cpp

@@ -2248,6 +2248,10 @@ BWindow::task_looper()
 				} else {
 					gDefaultTokens.GetToken(messagePrivate.GetTarget(),
 						B_HANDLER_TOKEN, (void **)&handler);
+
+					// if this handler doesn't belong to us, we drop the message
+					if (handler != NULL && handler->Looper() != this)
+						handler = NULL;
 				}
 
 				if (handler == NULL || usePreferred)
@@ -2280,6 +2284,11 @@ BWindow::task_looper()
 				}
 			}
 
+			if (fTerminating) {
+				// we leave the looper locked when we quit
+				return;
+			}
+
 			Unlock();
 
 			// Are any messages on the port?