1 files changed, 43 insertions, 0 deletions

diff --git a/src/main/java/org/gnunet/util/MessageTransmitter.java b/src/main/java/org/gnunet/util/MessageTransmitter.java
new file mode 100644
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--- /dev/null
+++ b/src/main/java/org/gnunet/util/MessageTransmitter.java
@@ -0,0 +1,43 @@
+/*
+ This file is part of GNUnet.
+ (C) 2011, 2012 Christian Grothoff (and other contributing authors)
+
+ GNUnet 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, or (at your
+ option) any later version.
+
+ GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+ */
+
+package org.gnunet.util;
+
+
+/**
+ * Callback object for transmitting messages.
+ */
+public interface MessageTransmitter {
+    /**
+     * Called when the client is ready to transmit messages, or on timeout/error.
+     *
+     * @param sink A message sink that receives messages to be transmitted by the client,
+     *             or null on timeout/error.
+     */
+    public void transmit(Connection.MessageSink sink);
+
+
+    /**
+     * Called when the transmit request could not be fullfilled.
+     *
+     * After transmit has been called, handleError will not be called anymore (until the next transmit request)
+     */
+    void handleError();
+}