ePOLL handle delete

Author: swhitty

FlyingSocks/Sources/EventQueue+ePoll.swift

@@ -79,8 +79,8 @@ struct ePoll: EventQueue {
 
         if existing[socket] != nil {
             if events.isEmpty {
-                guard epoll_ctl(file.rawValue, EPOLL_CTL_ADD, socket.rawValue, &event) != -1 else {
-                    throw SocketError.makeFailed("epoll_ctl EPOLL_CTL_ADD")
+                guard epoll_ctl(file.rawValue, EPOLL_CTL_DEL, socket.rawValue, &event) != -1 else {
+                    throw SocketError.makeFailed("epoll_ctl EPOLL_CTL_DEL")
                 }
             } else {
                 guard epoll_ctl(file.rawValue, EPOLL_CTL_MOD, socket.rawValue, &event) != -1 else {