Various fixes for epoll handling without libevent.

This should take care of most compile issues as well as busy loops caused by unhandled recv() calls returning 0 and general cleanups.

src/network/backend.h

@@ -0,0 +1,39 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_NETWORK_BACKEND_H
+#define HAVE_UHUB_NETWORK_BACKEND_H
+
+/**
+ * Initialize the network backend.
+ * Returns 1 on success, or 0 on failure.
+ */
+extern int net_backend_initialize();
+
+/**
+ * Shutdown the network connection backend.
+ */
+extern void net_backend_shutdown();
+
+/**
+ * Process the network backend.
+ */
+extern int net_backend_process();
+
+#endif /* HAVE_UHUB_NETWORK_BACKEND_H */