I have found a bug in SocketReactor for Linux. This is relevant for v1.10.1.

Steps to reproduce:

1. Create and run the reactor.
2. Create a socket and connect to a remote host.
3. Subscribe to various types of events by using SocketReactor::addEventHandler() method. For example: ReadableNotification, WritableNotification and TimeoutNotification.
4. Send some data to the socket.
5. Wait for the WritableNotification event and unsubscribe from this event by using SocketReactor::removeEventHandler() method.

Voila!

It happened because your forgot to update _pollSet and remove the corresponding epoll event. As a result, _pollSet.poll() immediately returns with an event that doesn't have handle (in this example PollSet::POLL_WRITE). This happens over and over without any delay and loads the processor.

I have provided you with a simple fix for this error.

poco.patch.txt

Let me know if I was wrong. Thanks