app_server: Catch drawing (AGG) allocation exceptions.

Since _DispatchViewDrawingMessage sends single B_ERROR replies in a number of generic cases, doing so here is probably fine; it's much better than crashing, anyway. This is the generalized case of PulkoMandy's earlier patch, which only applied to one drawing operation. This now affects all AGG calls. Change-Id: I751439e43cc300b964ac4cf41c48c1df30baf0a3 Reviewed-on: https://review.haiku-os.org/c/haiku/+/1863 Reviewed-by: Stephan Aßmus <[email protected]>
2019-09-14 17:25:58 +00:00
parent 174a50869d
commit d46af3075e
1 changed files with 15 additions and 1 deletions
@@ -2451,7 +2451,21 @@ fDesktop->LockSingleWindow();
 		}
 		default:
 			// The drawing code handles allocation failures using exceptions;
 			// so we need to account for that here.
 			try {
 				_DispatchViewDrawingMessage(code, link);
 			} catch (std::bad_alloc&) {
 				// Cancel any message we were in the middle of sending.
 				fLink.CancelMessage();
 				if (link.NeedsReply()) {
 					// As done in _DispatchViewDrawingMessage, send just a
 					// single status_t as the reply.
 					fLink.StartMessage(B_NO_MEMORY);
 					fLink.Flush();
 				}
 			}
 			break;
 	}
 }