This file is part of GNUnet.
Copyright (C) 2012-2017 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
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
+ 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 of the License,
+ 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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
+ Affero General Public License for more details.
*/
/**
};
-/**
- * Implementation-specific state for connection to
- * client (MQ for server).
- */
-struct ServerClientSocketState
-{
- /**
- * Handle of the client that connected to the server.
- */
- struct GNUNET_SERVER_Client *client;
-
- /**
- * Active transmission request to the client.
- */
- struct GNUNET_SERVER_TransmitHandle *th;
-};
-
-
/**
* Call the message message handler that was registered
* for the type of the given message in the given message queue.
}
GNUNET_assert (NULL == mq->envelope_head);
mq->current_envelope = ev;
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "sending message of type %u, queue empty (MQ: %p)\n",
+ ntohs(ev->mh->type),
+ mq);
+
mq->send_impl (mq,
ev->mh,
mq->impl_state);
GNUNET_CONTAINER_DLL_remove (mq->envelope_head,
mq->envelope_tail,
mq->current_envelope);
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "sending message of type %u from queue\n",
+ ntohs(mq->current_envelope->mh->type));
+
mq->send_impl (mq,
mq->current_envelope->mh,
mq->impl_state);
GNUNET_MQ_set_handlers_closure (struct GNUNET_MQ_Handle *mq,
void *handlers_cls)
{
- unsigned int i;
-
if (NULL == mq->handlers)
return;
- for (i=0;NULL != mq->handlers[i].cb; i++)
+ for (unsigned int i=0;NULL != mq->handlers[i].cb; i++)
mq->handlers[i].cls = handlers_cls;
}
}
-/**
- * Transmit a queued message to the session's client.
- *
- * @param cls consensus session
- * @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
- */
-static size_t
-transmit_queued (void *cls,
- size_t size,
- void *buf)
-{
- struct GNUNET_MQ_Handle *mq = cls;
- struct ServerClientSocketState *state = GNUNET_MQ_impl_state (mq);
- const struct GNUNET_MessageHeader *msg = GNUNET_MQ_impl_current (mq);
- size_t msg_size;
-
- GNUNET_assert (NULL != buf);
- msg_size = ntohs (msg->size);
- GNUNET_assert (size >= msg_size);
- GNUNET_memcpy (buf, msg, msg_size);
- state->th = NULL;
-
- GNUNET_MQ_impl_send_continue (mq);
-
- return msg_size;
-}
-
-
-static void
-server_client_destroy_impl (struct GNUNET_MQ_Handle *mq,
- void *impl_state)
-{
- struct ServerClientSocketState *state = impl_state;
-
- if (NULL != state->th)
- {
- GNUNET_SERVER_notify_transmit_ready_cancel (state->th);
- state->th = NULL;
- }
-
- GNUNET_assert (NULL != mq);
- GNUNET_assert (NULL != state);
- GNUNET_SERVER_client_drop (state->client);
- GNUNET_free (state);
-}
-
-
-static void
-server_client_send_impl (struct GNUNET_MQ_Handle *mq,
- const struct GNUNET_MessageHeader *msg,
- void *impl_state)
-{
- GNUNET_assert (NULL != mq);
-
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Sending message of type %u and size %u\n",
- ntohs (msg->type), ntohs (msg->size));
-
- struct ServerClientSocketState *state = impl_state;
- state->th = GNUNET_SERVER_notify_transmit_ready (state->client,
- ntohs (msg->size),
- GNUNET_TIME_UNIT_FOREVER_REL,
- &transmit_queued,
- mq);
-}
-
-
-struct GNUNET_MQ_Handle *
-GNUNET_MQ_queue_for_server_client (struct GNUNET_SERVER_Client *client)
-{
- struct GNUNET_MQ_Handle *mq;
- struct ServerClientSocketState *scss;
-
- mq = GNUNET_new (struct GNUNET_MQ_Handle);
- scss = GNUNET_new (struct ServerClientSocketState);
- mq->impl_state = scss;
- scss->client = client;
- GNUNET_SERVER_client_keep (client);
- mq->send_impl = &server_client_send_impl;
- mq->destroy_impl = &server_client_destroy_impl;
- return mq;
-}
-
-
/**
* Associate the assoc_data in mq with a unique request id.
*
mq->assoc_id = 1;
}
id = mq->assoc_id++;
- GNUNET_CONTAINER_multihashmap32_put (mq->assoc_map, id, assoc_data,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap32_put (mq->assoc_map,
+ id,
+ assoc_data,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
return id;
}
+/**
+ * Get the data associated with a @a request_id in a queue
+ *
+ * @param mq the message queue with the association
+ * @param request_id the request id we are interested in
+ * @return the associated data
+ */
void *
GNUNET_MQ_assoc_get (struct GNUNET_MQ_Handle *mq,
uint32_t request_id)
{
if (NULL == mq->assoc_map)
return NULL;
- return GNUNET_CONTAINER_multihashmap32_get (mq->assoc_map, request_id);
+ return GNUNET_CONTAINER_multihashmap32_get (mq->assoc_map,
+ request_id);
}
+/**
+ * Remove the association for a @a request_id
+ *
+ * @param mq the message queue with the association
+ * @param request_id the request id we want to remove
+ * @return the associated data
+ */
void *
GNUNET_MQ_assoc_remove (struct GNUNET_MQ_Handle *mq,
uint32_t request_id)
GNUNET_SCHEDULER_TaskCallback cb,
void *cb_cls)
{
- GNUNET_assert (NULL == ev->sent_cb);
+ /* allow setting *OR* clearing callback */
+ GNUNET_assert ( (NULL == ev->sent_cb) ||
+ (NULL == cb) );
ev->sent_cb = cb;
ev->sent_cls = cb_cls;
}
ev);
GNUNET_assert (0 < mq->queue_length);
mq->queue_length--;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "MQ destroy drops message of type %u\n",
+ ntohs (ev->mh->type));
GNUNET_MQ_discard (ev);
}
if (NULL != mq->current_envelope)
/* we can only discard envelopes that
* are not queued! */
mq->current_envelope->parent_queue = NULL;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "MQ destroy drops current message of type %u\n",
+ ntohs (mq->current_envelope->mh->type));
GNUNET_MQ_discard (mq->current_envelope);
mq->current_envelope = NULL;
GNUNET_assert (0 < mq->queue_length);
GNUNET_CONTAINER_DLL_remove (mq->envelope_head,
mq->envelope_tail,
mq->current_envelope);
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "sending canceled message of type %u queue\n",
+ ntohs(ev->mh->type));
+
mq->send_impl (mq,
mq->current_envelope->mh,
mq->impl_state);
}
+/**
+ * Obtain message contained in envelope.
+ *
+ * @param env the envelope
+ * @return message contained in the envelope
+ */
+const struct GNUNET_MessageHeader *
+GNUNET_MQ_env_get_msg (const struct GNUNET_MQ_Envelope *env)
+{
+ return env->mh;
+}
+
+
+/**
+ * Return next envelope in queue.
+ *
+ * @param env a queued envelope
+ * @return next one, or NULL
+ */
+const struct GNUNET_MQ_Envelope *
+GNUNET_MQ_env_next (const struct GNUNET_MQ_Envelope *env)
+{
+ return env->next;
+}
+
+
/**
* Register function to be called whenever @a mq is being
* destroyed.
}
+/**
+ * Copy an array of handlers, appending AGPL handler.
+ *
+ * Useful if the array has been delared in local memory and needs to be
+ * persisted for future use.
+ *
+ * @param handlers Array of handlers to be copied. Can be NULL (nothing done).
+ * @param agpl_handler function to call for AGPL handling
+ * @param agpl_cls closure for @a agpl_handler
+ * @return A newly allocated array of handlers.
+ * Needs to be freed with #GNUNET_free.
+ */
+struct GNUNET_MQ_MessageHandler *
+GNUNET_MQ_copy_handlers2 (const struct GNUNET_MQ_MessageHandler *handlers,
+ GNUNET_MQ_MessageCallback agpl_handler,
+ void *agpl_cls)
+{
+ struct GNUNET_MQ_MessageHandler *copy;
+ unsigned int count;
+
+ if (NULL == handlers)
+ return NULL;
+ count = GNUNET_MQ_count_handlers (handlers);
+ copy = GNUNET_new_array (count + 2,
+ struct GNUNET_MQ_MessageHandler);
+ GNUNET_memcpy (copy,
+ handlers,
+ count * sizeof (struct GNUNET_MQ_MessageHandler));
+ copy[count].mv = NULL;
+ copy[count].cb = agpl_handler;
+ copy[count].cls = agpl_cls;
+ copy[count].type = GNUNET_MESSAGE_TYPE_REQUEST_AGPL;
+ copy[count].expected_size = sizeof (struct GNUNET_MessageHeader);
+ return copy;
+}
+
+
/**
* Count the handlers in a handler array.
*
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