1 files changed, 143 insertions, 0 deletions

diff --git a/src/dv/gnunet_dv_service.h b/src/dv/gnunet_dv_service.h
new file mode 100644
index 000000000..7bdb17858
--- /dev/null
+++ b/src/dv/gnunet_dv_service.h
@@ -0,0 +1,143 @@
+/*
+     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.
+*/
+
+/**
+ * @author Christian Grothoff
+ * @file dv/gnunet-service-dv.h
+ * @brief DV service API (should only be used by the DV plugin)
+ */
+#ifndef GNUNET_SERVICE_DV_H
+#define GNUNET_SERVICE_DV_H
+
+#include "gnunet_util_lib.h"
+
+
+/**
+ * Signature of a function to be called if DV
+ * starts to be able to talk to a peer.
+ */
+typedef void (*GNUNET_DV_ConnectCallback)(void *cls,
+                                          const struct GNUNET_PeerIdentity *peer,
+                                          uint32_t distance);
+
+
+/**
+ * Signature of a function to be called if DV
+ * is no longer able to talk to a peer.
+ */
+typedef void (*GNUNET_DV_DisconnectCallback)(void *cls,
+                                             const struct GNUNET_PeerIdentity *peer);
+
+
+/**
+ * Signature of a function to be called if DV
+ * receives a message for this peer.
+ *
+ * @param cls closure
+ * @param sender sender of the message
+ * @param distance how far did the message travel
+ * @param msg actual message payload
+ */
+typedef void (*GNUNET_DV_MessageReceivedCallback)(void *cls,
+                                                  const struct GNUNET_PeerIdentity *sender,
+                                                  uint32_t distance,
+                                                  const struct GNUNET_MessageHeader *msg);
+
+
+/**
+ * Signature of a function called once the delivery of a
+ * message has been successful.
+ *
+ * @param cls closure
+ * @param ok GNUNET_OK on success, GNUNET_SYSERR on error
+ */
+typedef void (*GNUNET_DV_MessageSentCallback)(void *cls,
+                                              int ok);
+
+
+/**
+ * Handle to the DV service.
+ */
+struct GNUNET_DV_ServiceHandle;
+
+
+/**
+ * Connect to the DV service.
+ *
+ * @param cfg configuration
+ * @param cls closure for callbacks
+ * @param connect_cb function to call on connects
+ * @param disconnect_cb function to call on disconnects
+ * @param message_cb function to call if we receive messages
+ * @return handle to access the service
+ */
+struct GNUNET_DV_ServiceHandle *
+GNUNET_DV_service_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
+                           void *cls,
+                           GNUNET_DV_ConnectCallback connect_cb,
+                           GNUNET_DV_DisconnectCallback disconnect_cb,
+                           GNUNET_DV_MessageReceivedCallback message_cb);
+
+
+/**
+ * Disconnect from DV service.
+ *
+ * @param sh service handle
+ */
+void
+GNUNET_DV_service_disconnect (struct GNUNET_DV_ServiceHandle *sh);
+
+
+/**
+ * Handle for a send operation.
+ */
+struct GNUNET_DV_TransmitHandle;
+
+
+/**
+ * Send a message via DV service.
+ *
+ * @param sh service handle
+ * @param target intended recpient
+ * @param msg message payload
+ * @param cb function to invoke when done
+ * @param cb_cls closure for 'cb'
+ * @return handle to cancel the operation
+ */
+struct GNUNET_DV_TransmitHandle *
+GNUNET_DV_send (struct GNUNET_DV_ServiceHandle *sh,
+                const struct GNUNET_PeerIdentity *target,
+                const struct GNUNET_MessageHeader *msg,
+                GNUNET_DV_MessageSentCallback cb,
+                void *cb_cls);
+
+
+/**
+ * Abort send operation (naturally, the message may have
+ * already been transmitted; this only stops the 'cb'
+ * from being called again).
+ *
+ * @param th send operation to cancel
+ */
+void
+GNUNET_DV_send_cancel (struct GNUNET_DV_TransmitHandle *th);
+
+
+#endif