/*
This file is part of GNUnet.
- Copyright (C) 2009-2014 GNUnet e.V.
+ Copyright (C) 2009-2016 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
/**
* Version number of the transport API.
*/
-#define GNUNET_TRANSPORT_VERSION 0x00000002
-
-
-/**
- * Function called by the transport for each received message.
- *
- * @param cls closure
- * @param peer (claimed) identity of the other peer
- * @param message the message
- */
-typedef void
-(*GNUNET_TRANSPORT_ReceiveCallback) (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_MessageHeader *message);
-
-
-/**
- * Function called to notify transport users that another
- * peer connected to us.
- *
- * @param cls closure
- * @param peer the peer that connected
- */
-typedef void
-(*GNUNET_TRANSPORT_NotifyConnect) (void *cls,
- const struct GNUNET_PeerIdentity *peer);
-
-
-/**
- * Function called to notify transport users that another
- * peer disconnected from us.
- *
- * @param cls closure
- * @param peer the peer that disconnected
- */
-typedef void
-(*GNUNET_TRANSPORT_NotifyDisconnect) (void *cls,
- const struct GNUNET_PeerIdentity *peer);
-
-
-/**
- * Connect to the transport service. Note that the connection may
- * complete (or fail) asynchronously.
- *
- * @param cfg configuration to use
- * @param self our own identity (API should check that it matches
- * the identity found by transport), or NULL (no check)
- * @param cls closure for the callbacks
- * @param rec receive function to call, or NULL
- * @param nc function to call on connect events, or NULL
- * @param nd function to call on disconnect events, or NULL
- * @return NULL on error
- */
-struct GNUNET_TRANSPORT_Handle *
-GNUNET_TRANSPORT_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
- const struct GNUNET_PeerIdentity *self,
- void *cls,
- GNUNET_TRANSPORT_ReceiveCallback rec,
- GNUNET_TRANSPORT_NotifyConnect nc,
- GNUNET_TRANSPORT_NotifyDisconnect nd);
-
-
-/**
- * Function called if we have "excess" bandwidth to a peer.
- * The notification will happen the first time we have excess
- * bandwidth, and then only again after the client has performed
- * some transmission to the peer.
- *
- * Excess bandwidth is defined as being allowed (by ATS) to send
- * more data, and us reaching the limit of the capacity build-up
- * (which, if we go past it, means we don't use available bandwidth).
- * See also the "max carry" in `struct GNUNET_BANDWIDTH_Tracker`.
- *
- * @param cls the closure
- * @param neighbour peer that we have excess bandwidth to
- */
-typedef void
-(*GNUNET_TRANSPORT_NotifyExcessBandwidth)(void *cls,
- const struct GNUNET_PeerIdentity *neighbour);
-
-
-/**
- * Connect to the transport service. Note that the connection may
- * complete (or fail) asynchronously.
- *
- * @param cfg configuration to use
- * @param self our own identity (API should check that it matches
- * the identity found by transport), or NULL (no check)
- * @param cls closure for the callbacks
- * @param rec receive function to call, or NULL
- * @param nc function to call on connect events, or NULL
- * @param nd function to call on disconnect events, or NULL
- * @param neb function to call if we have excess bandwidth to a peer
- * @return NULL on error
- */
-struct GNUNET_TRANSPORT_Handle *
-GNUNET_TRANSPORT_connect2 (const struct GNUNET_CONFIGURATION_Handle *cfg,
- const struct GNUNET_PeerIdentity *self,
- void *cls,
- GNUNET_TRANSPORT_ReceiveCallback rec,
- GNUNET_TRANSPORT_NotifyConnect nc,
- GNUNET_TRANSPORT_NotifyDisconnect nd,
- GNUNET_TRANSPORT_NotifyExcessBandwidth neb);
-
-
-/**
- * Disconnect from the transport service.
- *
- * @param handle handle returned from connect
- */
-void
-GNUNET_TRANSPORT_disconnect (struct GNUNET_TRANSPORT_Handle *handle);
-
-
-/* ************************* Sending *************************** */
-
-/**
- * Opaque handle for a transmission-ready request.
- */
-struct GNUNET_TRANSPORT_TransmitHandle;
-
-
-/**
- * Function called to notify a client about the connection begin ready
- * to queue more data. @a buf will be NULL and @a size zero if the
- * connection was closed for writing in the meantime.
- *
- * @param cls closure
- * @param size number of bytes available in @a buf
- * @param buf where the callee should write the message
- * @return number of bytes written to @a buf
- */
-typedef size_t
-(*GNUNET_TRANSPORT_TransmitReadyNotify) (void *cls,
- size_t size,
- void *buf);
-
-
-/**
- * Check if we could queue a message of the given size for
- * transmission. The transport service will take both its internal
- * buffers and bandwidth limits imposed by the other peer into
- * consideration when answering this query.
- *
- * @param handle connection to transport service
- * @param target who should receive the message
- * @param size how big is the message we want to transmit?
- * @param timeout after how long should we give up (and call
- * notify with buf NULL and size 0)?
- * @param notify function to call when we are ready to
- * send such a message
- * @param notify_cls closure for @a notify
- * @return NULL if someone else is already waiting to be notified
- * non-NULL if the notify callback was queued (can be used to cancel
- * using #GNUNET_TRANSPORT_notify_transmit_ready_cancel())
- */
-struct GNUNET_TRANSPORT_TransmitHandle *
-GNUNET_TRANSPORT_notify_transmit_ready (struct GNUNET_TRANSPORT_Handle *handle,
- const struct GNUNET_PeerIdentity *target,
- size_t size,
- struct GNUNET_TIME_Relative timeout,
- GNUNET_TRANSPORT_TransmitReadyNotify notify,
- void *notify_cls);
-
-
-/**
- * Cancel the specified transmission-ready notification.
- *
- * @param th handle of the transmission notification request to cancel
- */
-void
-GNUNET_TRANSPORT_notify_transmit_ready_cancel (struct GNUNET_TRANSPORT_TransmitHandle *th);
-
-
-/**
- * Checks if a given peer is connected to us
- *
- * @param handle connection to transport service
- * @param peer the peer to check
- * @return #GNUNET_YES (connected) or #GNUNET_NO (disconnected)
- */
-int
-GNUNET_TRANSPORT_check_peer_connected (struct GNUNET_TRANSPORT_Handle *handle,
- const struct GNUNET_PeerIdentity *peer);
-
-
-
-/* *********************** Metric manipulation ***************** */
-
-/**
- * Set transport metrics for a peer and a direction
- *
- * @param handle transport handle
- * @param peer the peer to set the metric for
- * @param prop the performance metrics to set
- * @param delay_in inbound delay to introduce
- * @param delay_out outbound delay to introduce
- *
- * Note: Delay restrictions in receiving direction will be enforced
- * with one message delay.
- */
-void
-GNUNET_TRANSPORT_set_traffic_metric (struct GNUNET_TRANSPORT_Handle *handle,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_ATS_Properties *prop,
- struct GNUNET_TIME_Relative delay_in,
- struct GNUNET_TIME_Relative delay_out);
+#define GNUNET_TRANSPORT_VERSION 0x00000003
/* *************************** HELLO *************************** */
-
-/**
- * Function called whenever there is an update to the
- * HELLO of this peer.
- *
- * @param cls closure
- * @param hello our updated HELLO
- */
-typedef void
-(*GNUNET_TRANSPORT_HelloUpdateCallback) (void *cls,
- const struct GNUNET_MessageHeader *hello);
-
-
-/**
- * Handle to cancel a #GNUNET_TRANSPORT_get_hello() operation.
- */
-struct GNUNET_TRANSPORT_GetHelloHandle;
-
-
-/**
- * Obtain updates on changes to the HELLO message for this peer. The callback
- * given in this function is never called synchronously.
- *
- * @param cfg configuration
- * @param rec function to call with the HELLO
- * @param rec_cls closure for @a rec
- * @return handle to cancel the operation
- */
-struct GNUNET_TRANSPORT_GetHelloHandle *
-GNUNET_TRANSPORT_get_hello (const struct GNUNET_CONFIGURATION_Handle *cfg,
- GNUNET_TRANSPORT_HelloUpdateCallback rec,
- void *rec_cls);
-
-
-/**
- * Stop receiving updates about changes to our HELLO message.
- *
- * @param ghh handle to cancel
- */
-void
-GNUNET_TRANSPORT_get_hello_cancel (struct GNUNET_TRANSPORT_GetHelloHandle *ghh);
-
-
/**
* Handle for a #GNUNET_TRANSPORT_offer_hello operation
*/
* tc reason #GNUNET_SCHEDULER_REASON_TIMEOUT for fail
* tc reasong #GNUNET_SCHEDULER_REASON_READ_READY for success
* @param cont_cls closure for @a cont
- * @return a GNUNET_TRANSPORT_OfferHelloHandle handle or NULL on failure,
+ * @return a `struct GNUNET_TRANSPORT_OfferHelloHandle` handle or NULL on failure,
* in case of failure @a cont will not be called
*
*/
projects / oweals / gnunet.git / blobdiff