/*
This file is part of GNUnet
- Copyright (C) 2013, 2014 GNUnet e.V.
+ Copyright (C) 2013, 2014, 2017 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
* Client that owns the listener.
* Only one client may own a listener.
*/
- struct GNUNET_SERVER_Client *client;
+ struct GNUNET_SERVICE_Client *client;
/**
* Message queue for the client
* does not own a set
*/
static struct Set *
-set_get (struct GNUNET_SERVER_Client *client)
+set_get (struct GNUNET_SERVICE_Client *client)
{
struct Set *set;
* if there isn't any
*/
static struct Listener *
-listener_get (struct GNUNET_SERVER_Client *client)
+listener_get (struct GNUNET_SERVICE_Client *client)
{
struct Listener *listener;
* The client's destroy callback will destroy the listener again. */
if (NULL != listener->client)
{
- struct GNUNET_SERVER_Client *client = listener->client;
+ struct GNUNET_SERVICE_Client *client = listener->client;
listener->client = NULL;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Disconnecting listener client\n");
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
if (NULL != listener->client_mq)
* callback will call `set_destroy()` again in this case. We do
* this so that the channel end handler still has a valid set handle
* to destroy. */
- struct GNUNET_SERVER_Client *client = set->client;
+ struct GNUNET_SERVICE_Client *client = set->client;
set->client = NULL;
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
GNUNET_assert (NULL != set->state);
}
+/**
+ * Callback called when a client connects to the service.
+ *
+ * @param cls closure for the service
+ * @param c the new client that connected to the service
+ * @param mq the message queue used to send messages to the client
+ * @return @a c
+ */
+static void *
+client_connect_cb (void *cls,
+ struct GNUNET_SERVICE_Client *c,
+ struct GNUNET_MQ_Handle *mq)
+{
+ return c;
+}
+
+
/**
* Clean up after a client has disconnected
*
* @param cls closure, unused
* @param client the client to clean up after
+ * @param internal_cls our client-specific internal data structure
*/
static void
-handle_client_disconnect (void *cls,
- struct GNUNET_SERVER_Client *client)
+client_disconnect_cb (void *cls,
+ struct GNUNET_SERVICE_Client *client,
+ void *internal_cls)
{
struct Listener *listener;
struct Set *set;
* can right now start an iteration. If all checks out, starts
* sending the elements of the set to the client.
*
- * @param cls unused
- * @param client client that sent the message
+ * @param cls client that sent the message
* @param m message sent by the client
*/
static void
handle_client_iterate (void *cls,
- struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *m)
{
+ struct GNUNET_SERVICE_Client *client = cls;
struct Set *set;
set = set_get (client);
{
/* attempt to iterate over a non existing set */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
if (NULL != set->iter)
{
/* Only one concurrent iterate-action allowed per set */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
(void *) set,
set->current_generation,
GNUNET_CONTAINER_multihashmap_size (set->content->elements));
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
set->content->iterator_count += 1;
set->iter = GNUNET_CONTAINER_multihashmap_iterator_create (set->content->elements);
set->iter_generation = set->current_generation;
* the first request from a client, and includes the type of set
* operation to be performed.
*
- * @param cls unused
- * @param client client that sent the message
+ * @param cls client that sent the message
* @param m message sent by the client
*/
static void
handle_client_create_set (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *m)
+ const struct GNUNET_SET_CreateMessage *msg)
{
- const struct GNUNET_SET_CreateMessage *msg;
+ struct GNUNET_SERVICE_Client *client = cls;
struct Set *set;
- msg = (const struct GNUNET_SET_CreateMessage *) m;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Client created new set (operation %u)\n",
ntohl (msg->operation));
{
/* There can only be one set per client */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
set = GNUNET_new (struct Set);
default:
GNUNET_free (set);
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
set->operation = ntohl (msg->operation);
{
/* initialization failed (i.e. out of memory) */
GNUNET_free (set);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
set->content = GNUNET_new (struct SetContent);
set->content->refcount = 1;
set->content->elements = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_YES);
set->client = client;
- set->client_mq = GNUNET_MQ_queue_for_server_client (client);
+ set->client_mq = GNUNET_SERVICE_client_get_mq (client);
GNUNET_CONTAINER_DLL_insert (sets_head,
sets_tail,
set);
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
}
*
* @param cls closure
* @param channel new handle to the channel
- * @param initiator peer that started the channel
- * @param port Port this channel is for.
- * @param options Unused.
+ * @param source peer that started the channel
* @return initial channel context for the channel
* returns NULL on error
*/
static void *
channel_new_cb (void *cls,
struct GNUNET_CADET_Channel *channel,
- const struct GNUNET_PeerIdentity *initiator,
- const struct GNUNET_HashCode *port,
- enum GNUNET_CADET_ChannelOption options)
+ const struct GNUNET_PeerIdentity *source)
{
static const struct SetVT incoming_vt = {
.msg_handler = &handle_incoming_msg,
incoming = GNUNET_new (struct Operation);
incoming->listener = listener;
incoming->is_incoming = GNUNET_YES;
- incoming->peer = *initiator;
+ incoming->peer = *source;
incoming->channel = channel;
- incoming->mq = GNUNET_CADET_mq_create (incoming->channel);
+ incoming->mq = GNUNET_CADET_get_mq (incoming->channel);
incoming->vt = &incoming_vt;
incoming->timeout_task
= GNUNET_SCHEDULER_add_delayed (INCOMING_CHANNEL_TIMEOUT,
}
+/**
+ * Function called whenever a channel is destroyed. Should clean up
+ * any associated state. It must NOT call
+ * GNUNET_CADET_channel_destroy() on the channel.
+ *
+ * The peer_disconnect function is part of a a virtual table set initially either
+ * when a peer creates a new channel with us, or once we create
+ * a new channel ourselves (evaluate).
+ *
+ * Once we know the exact type of operation (union/intersection), the vt is
+ * replaced with an operation specific instance (_GSS_[op]_vt).
+ *
+ * @param channel_ctx place where local state associated
+ * with the channel is stored
+ * @param channel connection to the other end (henceforth invalid)
+ */
+static void
+channel_end_cb (void *channel_ctx,
+ const struct GNUNET_CADET_Channel *channel)
+{
+ struct Operation *op = channel_ctx;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "channel_end_cb called\n");
+ op->channel = NULL;
+ op->keep++;
+ /* the vt can be null if a client already requested canceling op. */
+ if (NULL != op->vt)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "calling peer disconnect due to channel end\n");
+ op->vt->peer_disconnect (op);
+ }
+ op->keep--;
+ if (0 == op->keep)
+ {
+ /* cadet will never call us with the context again! */
+ GNUNET_free (op);
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "channel_end_cb finished\n");
+}
+
+
+/**
+ * Function called whenever an MQ-channel's transmission window size changes.
+ *
+ * The first callback in an outgoing channel will be with a non-zero value
+ * and will mean the channel is connected to the destination.
+ *
+ * For an incoming channel it will be called immediately after the
+ * #GNUNET_CADET_ConnectEventHandler, also with a non-zero value.
+ *
+ * @param cls Channel closure.
+ * @param channel Connection to the other end (henceforth invalid).
+ * @param window_size New window size. If the is more messages than buffer size
+ * this value will be negative..
+ */
+static void
+channel_window_cb (void *cls,
+ const struct GNUNET_CADET_Channel *channel,
+ int window_size)
+{
+ /* FIXME: not implemented, we could do flow control here... */
+}
+
+/**
+ * FIXME: hack-job. Migrate to proper handler array use!
+ *
+ * @param cls local state associated with the channel.
+ * @param message The actual message.
+ */
+static int
+check_p2p_message (void *cls,
+ const struct GNUNET_MessageHeader *message)
+{
+ return GNUNET_OK;
+}
+
+
+/**
+ * FIXME: hack-job. Migrate to proper handler array use!
+ *
+ * Functions with this signature are called whenever a message is
+ * received via a cadet channel.
+ *
+ * The msg_handler is a virtual table set in initially either when a peer
+ * creates a new channel with us, or once we create a new channel
+ * ourselves (evaluate).
+ *
+ * Once we know the exact type of operation (union/intersection), the vt is
+ * replaced with an operation specific instance (_GSS_[op]_vt).
+ *
+ * @param cls local state associated with the channel.
+ * @param message The actual message.
+ */
+static void
+handle_p2p_message (void *cls,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct Operation *op = cls;
+ int ret;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Dispatching cadet message (type: %u)\n",
+ ntohs (message->type));
+ /* do this before the handler, as the handler might kill the channel */
+ GNUNET_CADET_receive_done (op->channel);
+ if (NULL != op->vt)
+ ret = op->vt->msg_handler (op,
+ message);
+ else
+ ret = GNUNET_SYSERR;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Handled cadet message (type: %u)\n",
+ ntohs (message->type));
+ if (GNUNET_OK != ret)
+ GNUNET_CADET_channel_destroy (op->channel);
+}
+
+
/**
* Called when a client wants to create a new listener.
*
- * @param cls unused
- * @param client client that sent the message
- * @param m message sent by the client
+ * @param cls client that sent the message
+ * @param msg message sent by the client
*/
static void
handle_client_listen (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *m)
+ const struct GNUNET_SET_ListenMessage *msg)
{
- const struct GNUNET_SET_ListenMessage *msg;
+ struct GNUNET_SERVICE_Client *client = cls;
+ struct GNUNET_MQ_MessageHandler cadet_handlers[] = {
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_P2P_OPERATION_REQUEST,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_IBF,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_P2P_ELEMENTS,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_OFFER,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_INQUIRY,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_DEMAND,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_DONE,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_SE,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_SEC,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_ELEMENT_INFO,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_BF,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_DONE,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_handler_end ()
+ };
struct Listener *listener;
struct Operation *op;
- msg = (const struct GNUNET_SET_ListenMessage *) m;
if (NULL != listener_get (client))
{
/* max. one active listener per client! */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
listener = GNUNET_new (struct Listener);
listener->client = client;
- listener->client_mq = GNUNET_MQ_queue_for_server_client (client);
+ listener->client_mq = GNUNET_SERVICE_client_get_mq (client);
listener->app_id = msg->app_id;
listener->operation = ntohl (msg->operation);
GNUNET_CONTAINER_DLL_insert_tail (listeners_head,
listeners_tail,
listener);
- listener->open_port = GNUNET_CADET_open_port (cadet,
- &msg->app_id,
- &channel_new_cb,
- listener);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"New listener created (op %u, port %s)\n",
listener->operation,
GNUNET_h2s (&listener->app_id));
-
+ listener->open_port = GNUNET_CADET_open_porT (cadet,
+ &msg->app_id,
+ &channel_new_cb,
+ listener,
+ &channel_window_cb,
+ &channel_end_cb,
+ cadet_handlers);
/* check for existing incoming requests the listener might be interested in */
for (op = incoming_head; NULL != op; op = op->next)
{
incoming_suggest (op,
listener);
}
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
}
* Called when the listening client rejects an operation
* request by another peer.
*
- * @param cls unused
- * @param client client that sent the message
- * @param m message sent by the client
+ * @param cls client that sent the message
+ * @param msg message sent by the client
*/
static void
handle_client_reject (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *m)
+ const struct GNUNET_SET_RejectMessage *msg)
{
+ struct GNUNET_SERVICE_Client *client = cls;
struct Operation *incoming;
- const struct GNUNET_SET_RejectMessage *msg;
- msg = (const struct GNUNET_SET_RejectMessage *) m;
incoming = get_incoming (ntohl (msg->accept_reject_id));
if (NULL == incoming)
{
/* no matching incoming operation for this reject */
GNUNET_break (0);
- GNUNET_SERVER_receive_done (client,
- GNUNET_SYSERR);
+ GNUNET_SERVICE_client_drop (client);
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
incoming->spec->operation,
GNUNET_h2s (&incoming->spec->app_id));
GNUNET_CADET_channel_destroy (incoming->channel);
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
}
+/**
+ * Called when a client wants to add or remove an element to a set it inhabits.
+ *
+ * @param cls client that sent the message
+ * @param m message sent by the client
+ */
+static int
+check_client_mutation (void *cls,
+ const struct GNUNET_MessageHeader *m)
+{
+ /* FIXME: any check we might want to do here? */
+ return GNUNET_OK;
+}
+
/**
* Called when a client wants to add or remove an element to a set it inhabits.
*
- * @param cls unused
- * @param client client that sent the message
+ * @param cls client that sent the message
* @param m message sent by the client
*/
static void
handle_client_mutation (void *cls,
- struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *m)
{
+ struct GNUNET_SERVICE_Client *client = cls;
struct Set *set;
set = set_get (client);
{
/* client without a set requested an operation */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
if (0 != set->content->iterator_count)
{
pm);
return;
}
-
execute_mutation (set, m);
}
* peer. Initiates the CADET connection to the listener and sends the
* request.
*
- * @param cls unused
- * @param client client that sent the message
- * @param m message sent by the client
+ * @param cls client that sent the message
+ * @param msg message sent by the client
+ * @return #GNUNET_OK if the message is well-formed
+ */
+static int
+check_client_evaluate (void *cls,
+ const struct GNUNET_SET_EvaluateMessage *msg)
+{
+ /* FIXME: suboptimal, even if the context below could be NULL,
+ there are malformed messages this does not check for... */
+ return GNUNET_OK;
+}
+
+
+/**
+ * Called when a client wants to initiate a set operation with another
+ * peer. Initiates the CADET connection to the listener and sends the
+ * request.
+ *
+ * @param cls client that sent the message
+ * @param msg message sent by the client
*/
static void
handle_client_evaluate (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *m)
+ const struct GNUNET_SET_EvaluateMessage *msg)
{
+ struct GNUNET_SERVICE_Client *client = cls;
+ struct Operation *op = GNUNET_new (struct Operation);
+ const struct GNUNET_MQ_MessageHandler cadet_handlers[] = {
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_P2P_OPERATION_REQUEST,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_IBF,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_P2P_ELEMENTS,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_OFFER,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_INQUIRY,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_DEMAND,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_DONE,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_SE,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_UNION_P2P_SEC,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_ELEMENT_INFO,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_BF,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_hd_var_size (p2p_message,
+ GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_DONE,
+ struct GNUNET_MessageHeader,
+ op),
+ GNUNET_MQ_handler_end ()
+ };
struct Set *set;
- const struct GNUNET_SET_EvaluateMessage *msg;
struct OperationSpecification *spec;
- struct Operation *op;
const struct GNUNET_MessageHeader *context;
set = set_get (client);
if (NULL == set)
{
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_free (op);
+ GNUNET_SERVICE_client_drop (client);
return;
}
- msg = (const struct GNUNET_SET_EvaluateMessage *) m;
spec = GNUNET_new (struct OperationSpecification);
spec->operation = set->operation;
spec->app_id = msg->app_id;
spec->result_mode = ntohl (msg->result_mode);
spec->client_request_id = ntohl (msg->request_id);
context = GNUNET_MQ_extract_nested_mh (msg);
- op = GNUNET_new (struct Operation);
op->spec = spec;
// Advance generation values, so that
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Creating new CADET channel to port %s\n",
GNUNET_h2s (&msg->app_id));
- op->channel = GNUNET_CADET_channel_create (cadet,
+ op->channel = GNUNET_CADET_channel_creatE (cadet,
op,
&msg->target_peer,
&msg->app_id,
- GNUNET_CADET_OPTION_RELIABLE);
- op->mq = GNUNET_CADET_mq_create (op->channel);
+ GNUNET_CADET_OPTION_RELIABLE,
+ &channel_window_cb,
+ &channel_end_cb,
+ cadet_handlers);
+ op->mq = GNUNET_CADET_get_mq (op->channel);
set->vt->evaluate (op,
context);
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
}
* that we only expect acks for set elements, not after the
* #GNUNET_MESSAGE_TYPE_SET_ITER_DONE message.
*
- * @param cls unused
- * @param client the client
- * @param m the message
+ * @param cls client the client
+ * @param ack the message
*/
static void
handle_client_iter_ack (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *m)
+ const struct GNUNET_SET_IterAckMessage *ack)
{
- const struct GNUNET_SET_IterAckMessage *ack;
+ struct GNUNET_SERVICE_Client *client = cls;
struct Set *set;
set = set_get (client);
{
/* client without a set acknowledged receiving a value */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
if (NULL == set->iter)
/* client sent an ack, but we were not expecting one (as
set iteration has finished) */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
- ack = (const struct GNUNET_SET_IterAckMessage *) m;
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
if (ntohl (ack->send_more))
{
send_client_element (set);
/**
- * Handle a request from the client to
- * copy a set.
+ * Handle a request from the client to copy a set.
*
- * @param cls unused
- * @param client the client
+ * @param cls the client
* @param mh the message
*/
static void
handle_client_copy_lazy_prepare (void *cls,
- struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *mh)
{
+ struct GNUNET_SERVICE_Client *client = cls;
struct Set *set;
struct LazyCopyRequest *cr;
struct GNUNET_MQ_Envelope *ev;
{
/* client without a set requested an operation */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
GNUNET_MQ_send (set->client_mq, ev);
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Client requested lazy copy\n");
/**
- * Handle a request from the client to
- * connect to a copy of a set.
+ * Handle a request from the client to connect to a copy of a set.
*
- * @param cls unused
- * @param client the client
- * @param mh the message
+ * @param cls the client
+ * @param msg the message
*/
static void
handle_client_copy_lazy_connect (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *mh)
+ const struct GNUNET_SET_CopyLazyConnectMessage *msg)
{
+ struct GNUNET_SERVICE_Client *client = cls;
struct LazyCopyRequest *cr;
- const struct GNUNET_SET_CopyLazyConnectMessage *msg =
- (const struct GNUNET_SET_CopyLazyConnectMessage *) mh;
struct Set *set;
int found;
{
/* There can only be one set per client */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
{
/* client asked for copy with cookie we don't know */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
GNUNET_break (0);
GNUNET_free (set);
GNUNET_free (cr);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
set->client = client;
- set->client_mq = GNUNET_MQ_queue_for_server_client (client);
+ set->client_mq = GNUNET_SERVICE_client_get_mq (client);
GNUNET_CONTAINER_DLL_insert (sets_head,
sets_tail,
set);
GNUNET_free (cr);
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Client connected to lazy set\n");
/**
- * Handle a request from the client to
- * cancel a running set operation.
+ * Handle a request from the client to cancel a running set operation.
*
- * @param cls unused
- * @param client the client
- * @param mh the message
+ * @param cls the client
+ * @param msg the message
*/
static void
handle_client_cancel (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *mh)
+ const struct GNUNET_SET_CancelMessage *msg)
{
- const struct GNUNET_SET_CancelMessage *msg =
- (const struct GNUNET_SET_CancelMessage *) mh;
+ struct GNUNET_SERVICE_Client *client = cls;
struct Set *set;
struct Operation *op;
int found;
{
/* client without a set requested an operation */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
_GSS_operation_destroy (op,
GNUNET_YES);
}
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
}
* came from a remote peer. We forward the accept to the associated
* operation for handling
*
- * @param cls unused
- * @param client the client
- * @param mh the message
+ * @param cls the client
+ * @param msg the message
*/
static void
handle_client_accept (void *cls,
- struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *mh)
+ const struct GNUNET_SET_AcceptMessage *msg)
{
+ struct GNUNET_SERVICE_Client *client = cls;
struct Set *set;
- const struct GNUNET_SET_AcceptMessage *msg;
struct Operation *op;
struct GNUNET_SET_ResultMessage *result_message;
struct GNUNET_MQ_Envelope *ev;
- msg = (const struct GNUNET_SET_AcceptMessage *) mh;
set = set_get (client);
if (NULL == set)
{
/* client without a set requested to accept */
GNUNET_break (0);
- GNUNET_SERVER_client_disconnect (client);
+ GNUNET_SERVICE_client_drop (client);
return;
}
op = get_incoming (ntohl (msg->accept_reject_id));
result_message->element_type = 0;
result_message->result_status = htons (GNUNET_SET_STATUS_FAILURE);
GNUNET_MQ_send (set->client_mq, ev);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
return;
}
op->vt = set->vt;
op->vt->accept (op);
- GNUNET_SERVER_receive_done (client,
- GNUNET_OK);
+ GNUNET_SERVICE_client_continue (client);
}
}
-/**
- * Function called whenever a channel is destroyed. Should clean up
- * any associated state. It must NOT call
- * GNUNET_CADET_channel_destroy() on the channel.
- *
- * The peer_disconnect function is part of a a virtual table set initially either
- * when a peer creates a new channel with us, or once we create
- * a new channel ourselves (evaluate).
- *
- * Once we know the exact type of operation (union/intersection), the vt is
- * replaced with an operation specific instance (_GSS_[op]_vt).
- *
- * @param cls closure (set from GNUNET_CADET_connect())
- * @param channel connection to the other end (henceforth invalid)
- * @param channel_ctx place where local state associated
- * with the channel is stored
- */
-static void
-channel_end_cb (void *cls,
- const struct GNUNET_CADET_Channel *channel,
- void *channel_ctx)
-{
- struct Operation *op = channel_ctx;
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "channel_end_cb called\n");
- op->channel = NULL;
- op->keep++;
- /* the vt can be null if a client already requested canceling op. */
- if (NULL != op->vt)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "calling peer disconnect due to channel end\n");
- op->vt->peer_disconnect (op);
- }
- op->keep--;
- if (0 == op->keep)
- {
- /* cadet will never call us with the context again! */
- GNUNET_free (op);
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "channel_end_cb finished\n");
-}
-
-
-/**
- * Functions with this signature are called whenever a message is
- * received via a cadet channel.
- *
- * The msg_handler is a virtual table set in initially either when a peer
- * creates a new channel with us, or once we create a new channel
- * ourselves (evaluate).
- *
- * Once we know the exact type of operation (union/intersection), the vt is
- * replaced with an operation specific instance (_GSS_[op]_vt).
- *
- * @param cls Closure (set from GNUNET_CADET_connect()).
- * @param channel Connection to the other end.
- * @param channel_ctx Place to store local state associated with the channel.
- * @param message The actual message.
- * @return #GNUNET_OK to keep the channel open,
- * #GNUNET_SYSERR to close it (signal serious error).
- */
-static int
-dispatch_p2p_message (void *cls,
- struct GNUNET_CADET_Channel *channel,
- void **channel_ctx,
- const struct GNUNET_MessageHeader *message)
-{
- struct Operation *op = *channel_ctx;
- int ret;
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Dispatching cadet message (type: %u)\n",
- ntohs (message->type));
- /* do this before the handler, as the handler might kill the channel */
- GNUNET_CADET_receive_done (channel);
- if (NULL != op->vt)
- ret = op->vt->msg_handler (op,
- message);
- else
- ret = GNUNET_SYSERR;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Handled cadet message (type: %u)\n",
- ntohs (message->type));
- return ret;
-}
-
-
/**
* Function called by the service's run
* method to run service-specific setup code.
*
* @param cls closure
- * @param server the initialized server
* @param cfg configuration to use
+ * @param service the initialized service
*/
static void
run (void *cls,
- struct GNUNET_SERVER_Handle *server,
- const struct GNUNET_CONFIGURATION_Handle *cfg)
+ const struct GNUNET_CONFIGURATION_Handle *cfg,
+ struct GNUNET_SERVICE_Handle *service)
{
- static const struct GNUNET_SERVER_MessageHandler server_handlers[] = {
- { &handle_client_accept, NULL,
- GNUNET_MESSAGE_TYPE_SET_ACCEPT,
- sizeof (struct GNUNET_SET_AcceptMessage)},
- { &handle_client_iter_ack, NULL,
- GNUNET_MESSAGE_TYPE_SET_ITER_ACK,
- sizeof (struct GNUNET_SET_IterAckMessage) },
- { &handle_client_mutation, NULL,
- GNUNET_MESSAGE_TYPE_SET_ADD,
- 0},
- { &handle_client_create_set, NULL,
- GNUNET_MESSAGE_TYPE_SET_CREATE,
- sizeof (struct GNUNET_SET_CreateMessage)},
- { &handle_client_iterate, NULL,
- GNUNET_MESSAGE_TYPE_SET_ITER_REQUEST,
- sizeof (struct GNUNET_MessageHeader)},
- { &handle_client_evaluate, NULL,
- GNUNET_MESSAGE_TYPE_SET_EVALUATE,
- 0},
- { &handle_client_listen, NULL,
- GNUNET_MESSAGE_TYPE_SET_LISTEN,
- sizeof (struct GNUNET_SET_ListenMessage)},
- { &handle_client_reject, NULL,
- GNUNET_MESSAGE_TYPE_SET_REJECT,
- sizeof (struct GNUNET_SET_RejectMessage)},
- { &handle_client_mutation, NULL,
- GNUNET_MESSAGE_TYPE_SET_REMOVE,
- 0},
- { &handle_client_cancel, NULL,
- GNUNET_MESSAGE_TYPE_SET_CANCEL,
- sizeof (struct GNUNET_SET_CancelMessage)},
- { &handle_client_copy_lazy_prepare, NULL,
- GNUNET_MESSAGE_TYPE_SET_COPY_LAZY_PREPARE,
- sizeof (struct GNUNET_MessageHeader)},
- { &handle_client_copy_lazy_connect, NULL,
- GNUNET_MESSAGE_TYPE_SET_COPY_LAZY_CONNECT,
- sizeof (struct GNUNET_SET_CopyLazyConnectMessage)},
- { NULL, NULL, 0, 0}
- };
- static const struct GNUNET_CADET_MessageHandler cadet_handlers[] = {
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_P2P_OPERATION_REQUEST, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_UNION_P2P_IBF, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_P2P_ELEMENTS, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_UNION_P2P_OFFER, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_UNION_P2P_INQUIRY, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_UNION_P2P_DEMAND, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_P2P_ELEMENT_REQUESTS, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_UNION_P2P_DONE, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_UNION_P2P_SE, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_UNION_P2P_SEC, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_ELEMENT_INFO, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_BF, 0},
- { &dispatch_p2p_message, GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_DONE, 0},
- {NULL, 0, 0}
- };
-
configuration = cfg;
- GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL);
- GNUNET_SERVER_disconnect_notify (server,
- &handle_client_disconnect,
- NULL);
- GNUNET_SERVER_add_handlers (server,
- server_handlers);
+ GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
+ NULL);
_GSS_statistics = GNUNET_STATISTICS_create ("set", cfg);
- cadet = GNUNET_CADET_connect (cfg,
- NULL,
- &channel_end_cb,
- cadet_handlers);
+ cadet = GNUNET_CADET_connecT (cfg);
if (NULL == cadet)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Could not connect to cadet service\n"));
+ _("Could not connect to CADET service\n"));
return;
}
}
/**
- * The main function for the set service.
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
+ * Define "main" method using service macro.
*/
-int
-main (int argc,
- char *const *argv)
-{
- int ret;
+GNUNET_SERVICE_MAIN
+("set",
+ GNUNET_SERVICE_OPTION_NONE,
+ &run,
+ &client_connect_cb,
+ &client_disconnect_cb,
+ NULL,
+ GNUNET_MQ_hd_fixed_size (client_accept,
+ GNUNET_MESSAGE_TYPE_SET_ACCEPT,
+ struct GNUNET_SET_AcceptMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (client_iter_ack,
+ GNUNET_MESSAGE_TYPE_SET_ITER_ACK,
+ struct GNUNET_SET_IterAckMessage,
+ NULL),
+ GNUNET_MQ_hd_var_size (client_mutation,
+ GNUNET_MESSAGE_TYPE_SET_ADD,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (client_create_set,
+ GNUNET_MESSAGE_TYPE_SET_CREATE,
+ struct GNUNET_SET_CreateMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (client_iterate,
+ GNUNET_MESSAGE_TYPE_SET_ITER_REQUEST,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_var_size (client_evaluate,
+ GNUNET_MESSAGE_TYPE_SET_EVALUATE,
+ struct GNUNET_SET_EvaluateMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (client_listen,
+ GNUNET_MESSAGE_TYPE_SET_LISTEN,
+ struct GNUNET_SET_ListenMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (client_reject,
+ GNUNET_MESSAGE_TYPE_SET_REJECT,
+ struct GNUNET_SET_RejectMessage,
+ NULL),
+ GNUNET_MQ_hd_var_size (client_mutation,
+ GNUNET_MESSAGE_TYPE_SET_REMOVE,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (client_cancel,
+ GNUNET_MESSAGE_TYPE_SET_CANCEL,
+ struct GNUNET_SET_CancelMessage,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (client_copy_lazy_prepare,
+ GNUNET_MESSAGE_TYPE_SET_COPY_LAZY_PREPARE,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_hd_fixed_size (client_copy_lazy_connect,
+ GNUNET_MESSAGE_TYPE_SET_COPY_LAZY_CONNECT,
+ struct GNUNET_SET_CopyLazyConnectMessage,
+ NULL),
+ GNUNET_MQ_handler_end ());
- ret = GNUNET_SERVICE_run (argc, argv, "set",
- GNUNET_SERVICE_OPTION_NONE,
- &run, NULL);
- return (GNUNET_OK == ret) ? 0 : 1;
-}
/* end of gnunet-service-set.c */
projects / oweals / gnunet.git / blobdiff