- for (i = 0; i < nhandles; i++)
- own_if_signalled (handles [i], &abandoned [i]);
+ for (i = 0; i < nhandles; i++) {
+ if (own_if_signalled (handles [i], &abandoned [i]) && !waitall) {
+ /* if we are calling WaitHandle.WaitAny, .NET only owns the first one; it matters for Mutex which
+ * throw AbandonedMutexException in case we owned it but didn't release it */
+ break;
+ }
+ }