+local function link(sender, receiver, buffersize)
+ local sender_locked;
+ local _sendbuffer = receiver.sendbuffer;
+ function receiver.sendbuffer()
+ _sendbuffer();
+ if sender_locked and receiver.bufferlen() < buffersize then
+ sender:lock_read(false); -- Unlock now
+ sender_locked = nil;
+ end
+ end
+
+ local _readbuffer = sender.readbuffer;
+ function sender.readbuffer()
+ _readbuffer();
+ if not sender_locked and receiver.bufferlen() >= buffersize then
+ sender_locked = true;
+ sender:lock_read(true);
+ end
+ end
+end
+