ObjFW  Diff

		 * Theoretically it is possible we block because Secure
		 * Transport cannot write without blocking. But unfortunately,
		 * Secure Transport does not tell us whether it's blocked on
		 * reading or writing. Waiting for the stream to be either
		 * readable or writable doesn't work either, as the stream is
		 * almost always at least ready for one of the two.
		 */
		[_underlyingStream asyncReadIntoBuffer: (void *)"" 
						length: 0
					   runLoopMode: runLoopMode];
		[_delegate retain];
		objc_autoreleasePoolPop(pool);
		return;
	}