- too much uncommited work

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diff --git a/src/mesh/gnunet-service-mesh_connection.h b/src/mesh/gnunet-service-mesh_connection.h
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+++ b/src/mesh/gnunet-service-mesh_connection.h
@@ -0,0 +1,197 @@
+/*
+     This file is part of GNUnet.
+     (C) 2013 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.
+*/
+
+/**
+ * @file mesh/gnunet-service-mesh_connection.h
+ * @brief mesh service; dealing with connections
+ * @author Bartlomiej Polot
+ *
+ * All functions in this file should use the prefix GMC (Gnunet Mesh Connection)
+ */
+
+#ifndef GNUNET_SERVICE_MESH_CONNECTION_H
+#define GNUNET_SERVICE_MESH_CONNECTION_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#if 0                           /* keep Emacsens' auto-indent happy */
+}
+#endif
+#endif
+
+#include "gnunet_util_lib.h"
+
+
+struct MeshConnection;
+
+/**
+ * Initialize the connections subsystem
+ *
+ * @param c Configuration handle.
+ */
+void
+GMC_init (struct GNUNET_CONFIGURATION_Handle *c);
+
+/**
+ * Create a connection.
+ *
+ * @param cid Connection ID.
+ */
+struct MeshConnection *
+GMC_new (const struct GNUNET_HashCode *cid);
+
+/**
+ * Connection is no longer needed: destroy it and remove from tunnel.
+ *
+ * @param c Connection to destroy.
+ */
+void
+GMC_destroy (struct MeshConnection *c);
+
+/**
+ * Count connections in a DLL.
+ */
+unsigned int
+GMC_count (const struct MeshConnection *head); 
+
+/**
+ * Send FWD keepalive packets for a connection.
+ *
+ * @param cls Closure (connection for which to send the keepalive).
+ * @param tc Notification context.
+ */
+void
+GMC_fwd_keepalive (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+/**
+ * Send BCK keepalive packets for a connection.
+ *
+ * @param cls Closure (connection for which to send the keepalive).
+ * @param tc Notification context.
+ */
+void
+GMC_bck_keepalive (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+
+/**
+ * Change the tunnel state.
+ *
+ * @param c Connection whose state to change.
+ * @param state New state.
+ */
+void
+GMC_change_state (struct MeshConnection* c, enum MeshConnectionState state);
+
+/**
+ * Iterator to notify all connections of a broken link. Mark connections
+ * to destroy after all traffic has been sent.
+ *
+ * @param cls Closure (peer disconnected).
+ * @param key Current key code (tid).
+ * @param value Value in the hash map (connection).
+ *
+ * @return GNUNET_YES if we should continue to iterate,
+ *         GNUNET_NO if not.
+ */
+int
+GMC_notify_broken (void *cls,
+                   const struct GNUNET_HashCode *key,
+                   void *value);
+
+/**
+ * @brief Queue and pass message to core when possible.
+ *
+ * @param cls Closure (@c type dependant). It will be used by queue_send to
+ *            build the message to be sent if not already prebuilt.
+ * @param type Type of the message, 0 for a raw message.
+ * @param size Size of the message.
+ * @param c Connection this message belongs to (cannot be NULL).
+ * @param ch Channel this message belongs to, if applicable (otherwise NULL).
+ * @param fwd Is this a message going root->dest? (FWD ACK are NOT FWD!)
+ */
+void
+GMC_queue_add (void* cls,
+               uint16_t type,
+               size_t size,
+               struct MeshConnection* c,
+               struct MeshChannel* ch,
+               int fwd);
+
+
+/**
+ * Free a transmission that was already queued with all resources
+ * associated to the request.
+ *
+ * @param queue Queue handler to cancel.
+ * @param clear_cls Is it necessary to free associated cls?
+ */
+void
+GMC_queue_destroy (struct MeshPeerQueue *queue, int clear_cls);
+
+
+/**
+ * Core callback to write a queued packet to core buffer
+ *
+ * @param cls Closure (peer info).
+ * @param size Number of bytes available in buf.
+ * @param buf Where the to write the message.
+ *
+ * @return number of bytes written to buf
+ */
+size_t
+GMC_queue_send (void *cls, size_t size, void *buf);
+
+
+
+/**
+ * Is this peer the first one on the connection?
+ *
+ * @param c Connection.
+ * @param fwd Is this about fwd traffic?
+ *
+ * @return GNUNET_YES if origin, GNUNET_NO if relay/terminal.
+ */
+int
+GMC_is_origin (struct MeshConnection *c, int fwd);
+
+/**
+ * Is this peer the last one on the connection?
+ *
+ * @param c Connection.
+ * @param fwd Is this about fwd traffic?
+ *            Note that the ROOT is the terminal for BCK traffic!
+ *
+ * @return GNUNET_YES if terminal, GNUNET_NO if relay/origin.
+ */
+int
+GMC_is_terminal (struct MeshConnection *c, int fwd);
+
+
+#if 0                           /* keep Emacsens' auto-indent happy */
+{
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+/* ifndef GNUNET_SERVICE_MESH_CONNECTION_H */
+#endif
+/* end of gnunet-service-mesh_connection.h */
\ No newline at end of file