/**
* Function to call after transmission has succeeded.
- *
+ *
* @param cls closure
* @param success GNUNET_OK if transmission worked, GNUNET_SYSERR on error
*/
-typedef void (*TransmissionContinuation)(void *cls,
- int success);
+typedef void (*TransmissionContinuation) (void *cls, int success);
/**
* This is a linked list.
*/
struct TransmissionQueueEntry *next;
-
+
/**
* This is a linked list.
*/
* case we must consider sending the next entry immediately).
*/
TransmissionContinuation cont;
-
+
/**
* Closure for 'cont'.
*/
struct TransmissionQueueEntry *tqe;
while (NULL != (tqe = h->tq_head))
- {
- GNUNET_CONTAINER_DLL_remove (h->tq_head,
- h->tq_tail,
- tqe);
- if (tqe->cont != NULL)
- tqe->cont (tqe->cont_cls, GNUNET_SYSERR);
- GNUNET_free (tqe);
- }
+ {
+ GNUNET_CONTAINER_DLL_remove (h->tq_head, h->tq_tail, tqe);
+ if (tqe->cont != NULL)
+ tqe->cont (tqe->cont_cls, GNUNET_SYSERR);
+ GNUNET_free (tqe);
+ }
if (h->th != NULL)
- {
- GNUNET_CLIENT_notify_transmit_ready_cancel (h->th);
- h->th = NULL;
- }
+ {
+ GNUNET_CLIENT_notify_transmit_ready_cancel (h->th);
+ h->th = NULL;
+ }
if (NULL != h->client)
- {
- GNUNET_CLIENT_disconnect (h->client, GNUNET_NO);
- h->client = NULL;
- }
+ {
+ GNUNET_CLIENT_disconnect (h->client, GNUNET_NO);
+ h->client = NULL;
+ }
if (GNUNET_SCHEDULER_NO_TASK != h->r_task)
- {
- GNUNET_SCHEDULER_cancel (h->r_task);
- h->r_task = GNUNET_SCHEDULER_NO_TASK;
- }
+ {
+ GNUNET_SCHEDULER_cancel (h->r_task);
+ h->r_task = GNUNET_SCHEDULER_NO_TASK;
+ }
GNUNET_free (h);
}
* Task scheduled to re-try connecting to the peerinfo service.
*
* @param cls the 'struct GNUNET_PEERINFO_Handle'
- * @param ts scheduler context
+ * @param tc scheduler context
*/
static void
-reconnect_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+reconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct GNUNET_PEERINFO_Handle *h = cls;
reconnect (struct GNUNET_PEERINFO_Handle *h)
{
if (h->r_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (h->r_task);
- h->r_task = GNUNET_SCHEDULER_NO_TASK;
- }
+ {
+ GNUNET_SCHEDULER_cancel (h->r_task);
+ h->r_task = GNUNET_SCHEDULER_NO_TASK;
+ }
if (NULL != h->th)
- {
- GNUNET_CLIENT_notify_transmit_ready_cancel (h->th);
- h->th = NULL;
- }
+ {
+ GNUNET_CLIENT_notify_transmit_ready_cancel (h->th);
+ h->th = NULL;
+ }
if (NULL != h->client)
- {
- GNUNET_CLIENT_disconnect (h->client, GNUNET_SYSERR);
- h->client = NULL;
- }
+ {
+ GNUNET_CLIENT_disconnect (h->client, GNUNET_SYSERR);
+ h->client = NULL;
+ }
h->client = GNUNET_CLIENT_connect ("peerinfo", h->cfg);
if (NULL == h->client)
- {
- h->r_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
- &reconnect_task,
- h);
- return;
- }
+ {
+ h->r_task =
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, &reconnect_task,
+ h);
+ return;
+ }
trigger_transmit (h);
}
size_t ret;
h->th = NULL;
- if (buf == NULL)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING | GNUNET_ERROR_TYPE_BULK,
- _("Failed to transmit message to `%s' service.\n"),
- "PEERINFO");
- if (tqe != NULL)
- GNUNET_CONTAINER_DLL_remove (h->tq_head,
- h->tq_tail,
- tqe);
- reconnect (h);
- if (tqe != NULL)
- {
- if (tqe->cont != NULL)
- tqe->cont (tqe->cont_cls, GNUNET_SYSERR);
- GNUNET_free (tqe);
- }
- return 0;
- }
- /* If it can be NULL above, it can be NULL here to... */
if (tqe == NULL)
return 0;
-
+ if (buf == NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING | GNUNET_ERROR_TYPE_BULK,
+ _("Failed to transmit message to `%s' service.\n"), "PEERINFO");
+ GNUNET_CONTAINER_DLL_remove (h->tq_head, h->tq_tail, tqe);
+ reconnect (h);
+ if (tqe->cont != NULL)
+ tqe->cont (tqe->cont_cls, GNUNET_SYSERR);
+ GNUNET_free (tqe);
+ return 0;
+ }
ret = tqe->size;
GNUNET_assert (size >= ret);
memcpy (buf, &tqe[1], ret);
#if DEBUG_PEERINFO
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Transmitting request of size %u to `%s' service.\n",
- ret,
- "PEERINFO");
+ "Transmitting request of size %u to `%s' service.\n", ret,
+ "PEERINFO");
#endif
- GNUNET_CONTAINER_DLL_remove (h->tq_head,
- h->tq_tail,
- tqe);
+ GNUNET_CONTAINER_DLL_remove (h->tq_head, h->tq_tail, tqe);
if (tqe->cont != NULL)
tqe->cont (tqe->cont_cls, GNUNET_OK);
else
if (h->in_receive == GNUNET_YES)
return;
if (NULL == h->client)
- {
- reconnect (h);
- return;
- }
- h->th = GNUNET_CLIENT_notify_transmit_ready (h->client,
- tqe->size,
- GNUNET_TIME_absolute_get_remaining (tqe->timeout),
- GNUNET_YES,
- &do_transmit, h);
+ {
+ reconnect (h);
+ return;
+ }
+ h->th =
+ GNUNET_CLIENT_notify_transmit_ready (h->client, tqe->size,
+ GNUNET_TIME_absolute_get_remaining
+ (tqe->timeout), GNUNET_YES,
+ &do_transmit, h);
}
/**
- * Add a host to the persistent list. This method operates in
+ * Add a host to the persistent list. This method operates in
* semi-reliable mode: if the transmission is not completed by
* the time 'GNUNET_PEERINFO_disconnect' is called, it will be
* aborted. Furthermore, if a second HELLO is added for the
*/
void
GNUNET_PEERINFO_add_peer (struct GNUNET_PEERINFO_Handle *h,
- const struct GNUNET_HELLO_Message *hello)
+ const struct GNUNET_HELLO_Message *hello)
{
uint16_t hs = GNUNET_HELLO_size (hello);
struct TransmissionQueueEntry *tqe;
-
+
#if DEBUG_PEERINFO
struct GNUNET_PeerIdentity peer;
+
GNUNET_assert (GNUNET_OK == GNUNET_HELLO_get_id (hello, &peer));
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Adding peer `%s' to PEERINFO database (%u bytes of `%s')\n",
- GNUNET_i2s(&peer),
- hs,
- "HELLO");
+ "Adding peer `%s' to PEERINFO database (%u bytes of `%s')\n",
+ GNUNET_i2s (&peer), hs, "HELLO");
#endif
tqe = GNUNET_malloc (sizeof (struct TransmissionQueueEntry) + hs);
tqe->size = hs;
tqe->timeout = GNUNET_TIME_UNIT_FOREVER_ABS;
memcpy (&tqe[1], hello, hs);
- GNUNET_CONTAINER_DLL_insert_after (h->tq_head,
- h->tq_tail,
- h->tq_tail,
- tqe);
+ GNUNET_CONTAINER_DLL_insert_after (h->tq_head, h->tq_tail, h->tq_tail, tqe);
trigger_transmit (h);
}
* @param msg message received, NULL on timeout or fatal error
*/
static void
-peerinfo_handler (void *cls,
- const struct GNUNET_MessageHeader *msg)
+peerinfo_handler (void *cls, const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_PEERINFO_IteratorContext *ic = cls;
const struct InfoMessage *im;
ic->h->in_receive = GNUNET_NO;
if (msg == NULL)
- {
- char *err_msg;
- GNUNET_asprintf(&err_msg,
- _("Failed to receive response from `%s' service."),
- "PEERINFO");
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%s\n", err_msg);
- reconnect (ic->h);
- if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (ic->timeout_task);
- if (ic->callback != NULL)
- ic->callback (ic->callback_cls, NULL, NULL, err_msg);
- GNUNET_free (err_msg);
- GNUNET_free (ic);
- return;
- }
+ {
+ reconnect (ic->h);
+ if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel (ic->timeout_task);
+ if (ic->callback != NULL)
+ ic->callback (ic->callback_cls, NULL, NULL,
+ _("Failed to receive response from `PEERINFO' service."));
+ GNUNET_free (ic);
+ return;
+ }
if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_PEERINFO_INFO_END)
- {
+ {
#if DEBUG_PEERINFO
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received end of list of peers from `%s' service\n",
- "PEERINFO");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received end of list of peers from `%s' service\n",
+ "PEERINFO");
#endif
- trigger_transmit (ic->h);
- if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (ic->timeout_task);
- if (ic->callback != NULL)
- ic->callback (ic->callback_cls, NULL, NULL, NULL);
- GNUNET_free (ic);
- return;
- }
+ trigger_transmit (ic->h);
+ if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel (ic->timeout_task);
+ if (ic->callback != NULL)
+ ic->callback (ic->callback_cls, NULL, NULL, NULL);
+ GNUNET_free (ic);
+ return;
+ }
ms = ntohs (msg->size);
if ((ms < sizeof (struct InfoMessage)) ||
(ntohs (msg->type) != GNUNET_MESSAGE_TYPE_PEERINFO_INFO))
+ {
+ GNUNET_break (0);
+ reconnect (ic->h);
+ if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel (ic->timeout_task);
+ if (ic->callback != NULL)
+ ic->callback (ic->callback_cls, NULL, NULL,
+ _("Received invalid message from `PEERINFO' service.\n"));
+ GNUNET_free (ic);
+ return;
+ }
+ im = (const struct InfoMessage *) msg;
+ GNUNET_break (0 == ntohl (im->reserved));
+ hello = NULL;
+ if (ms > sizeof (struct InfoMessage) + sizeof (struct GNUNET_MessageHeader))
+ {
+ hello = (const struct GNUNET_HELLO_Message *) &im[1];
+ if (ms != sizeof (struct InfoMessage) + GNUNET_HELLO_size (hello))
{
- char * err_msg;
- GNUNET_asprintf(&err_msg,_("Received invalid message from `%s' service.\n"),"PEERINFO");
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,err_msg);
GNUNET_break (0);
reconnect (ic->h);
if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (ic->timeout_task);
+ GNUNET_SCHEDULER_cancel (ic->timeout_task);
if (ic->callback != NULL)
- ic->callback (ic->callback_cls, NULL, NULL, err_msg);
- GNUNET_free (err_msg);
+ ic->callback (ic->callback_cls, NULL, NULL,
+ _("Received invalid message from `PEERINFO' service.\n"));
GNUNET_free (ic);
return;
}
- im = (const struct InfoMessage *) msg;
- GNUNET_break (0 == ntohl (im->reserved));
- hello = NULL;
- if (ms > sizeof (struct InfoMessage) + sizeof (struct GNUNET_MessageHeader))
- {
- hello = (const struct GNUNET_HELLO_Message *) &im[1];
- if (ms != sizeof (struct InfoMessage) + GNUNET_HELLO_size (hello))
- {
- char * err_msg;
- GNUNET_asprintf (&err_msg,
- _("Received invalid message from `%s' service.\n"),
- "PEERINFO");
- GNUNET_break (0);
- reconnect (ic->h);
- if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (ic->timeout_task);
- if (ic->callback != NULL)
- ic->callback (ic->callback_cls, NULL, NULL, err_msg);
- GNUNET_free (ic);
- GNUNET_free (err_msg);
- return;
- }
- }
+ }
#if DEBUG_PEERINFO
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received %u bytes of `%s' information about peer `%s' from `%s' service\n",
- (hello == NULL) ? 0 : (unsigned int) GNUNET_HELLO_size (hello),
- "HELLO",
- GNUNET_i2s (&im->peer),
- "PEERINFO");
+ "Received %u bytes of `%s' information about peer `%s' from `%s' service\n",
+ (hello == NULL) ? 0 : (unsigned int) GNUNET_HELLO_size (hello),
+ "HELLO", GNUNET_i2s (&im->peer), "PEERINFO");
#endif
ic->h->in_receive = GNUNET_YES;
if (ic->callback != NULL)
ic->callback (ic->callback_cls, &im->peer, hello, NULL);
- GNUNET_CLIENT_receive (ic->h->client,
- &peerinfo_handler,
- ic,
+ GNUNET_CLIENT_receive (ic->h->client, &peerinfo_handler, ic,
GNUNET_TIME_absolute_get_remaining (ic->timeout));
}
* @param transmit_success GNUNET_OK if transmission worked
*/
static void
-iterator_start_receive (void *cls,
- int transmit_success)
+iterator_start_receive (void *cls, int transmit_success)
{
struct GNUNET_PEERINFO_IteratorContext *ic = cls;
if (GNUNET_OK != transmit_success)
+ {
+ if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
{
- char * err_msg;
- GNUNET_asprintf(&err_msg,_("Failed to transmit iteration request to `%s' service (%d).\n"),"PEERINFO",transmit_success);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,err_msg);
- if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (ic->timeout_task);
- ic->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- }
- reconnect (ic->h);
- if (ic->callback != NULL)
- ic->callback (ic->callback_cls, NULL, NULL, err_msg);
- GNUNET_free (err_msg);
- GNUNET_free (ic);
- return;
- }
+ GNUNET_SCHEDULER_cancel (ic->timeout_task);
+ ic->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ reconnect (ic->h);
+ if (ic->callback != NULL)
+ ic->callback (ic->callback_cls, NULL, NULL,
+ _
+ ("Failed to transmit iteration request to `PEERINFO' service\n"));
+ GNUNET_free (ic);
+ return;
+ }
#if DEBUG_PEERINFO
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Waiting for response from `%s' service.\n",
- "PEERINFO");
+ "Waiting for response from `%s' service.\n", "PEERINFO");
#endif
ic->h->in_receive = GNUNET_YES;
ic->in_receive = GNUNET_YES;
ic->tqe = NULL;
- GNUNET_CLIENT_receive (ic->h->client,
- &peerinfo_handler,
- ic,
+ GNUNET_CLIENT_receive (ic->h->client, &peerinfo_handler, ic,
GNUNET_TIME_absolute_get_remaining (ic->timeout));
}
/**
- * Peerinfo iteration request has timed out.
+ * Peerinfo iteration request has timed out.
*
* @param cls the 'struct GNUNET_PEERINFO_IteratorContext*'
* @param tc scheduler context
*/
static void
-signal_timeout (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+signal_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct GNUNET_PEERINFO_IteratorContext *ic = cls;
- char * err_msg;
-
- GNUNET_asprintf(&err_msg,_("Timeout transmitting iteration request to `%s' service.\n"),
- "PEERINFO");
ic->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- if (! ic->in_receive)
- GNUNET_CONTAINER_DLL_remove (ic->h->tq_head,
- ic->h->tq_tail,
- ic->tqe);
- reconnect (ic->h);
- ic->callback (ic->callback_cls, NULL, NULL, err_msg);
+ if (!ic->in_receive)
+ GNUNET_CONTAINER_DLL_remove (ic->h->tq_head, ic->h->tq_tail, ic->tqe);
+ else
+ reconnect (ic->h);
+ ic->callback (ic->callback_cls, NULL, NULL,
+ _
+ ("Timeout transmitting iteration request to `PEERINFO' service.\n"));
ic->callback = NULL;
GNUNET_free_non_null (ic->tqe);
- GNUNET_free (err_msg);
GNUNET_free (ic);
}
*
* Instead of calling this function with 'peer == NULL' it is often
* better to use 'GNUNET_PEERINFO_notify'.
- *
+ *
* @param h handle to the peerinfo service
* @param peer restrict iteration to this peer only (can be NULL)
* @param timeout how long to wait until timing out
*/
struct GNUNET_PEERINFO_IteratorContext *
GNUNET_PEERINFO_iterate (struct GNUNET_PEERINFO_Handle *h,
- const struct GNUNET_PeerIdentity *peer,
- struct GNUNET_TIME_Relative timeout,
- GNUNET_PEERINFO_Processor callback,
- void *callback_cls)
+ const struct GNUNET_PeerIdentity *peer,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_PEERINFO_Processor callback, void *callback_cls)
{
struct GNUNET_MessageHeader *lapm;
struct ListPeerMessage *lpm;
struct TransmissionQueueEntry *tqe;
if (peer == NULL)
- {
+ {
#if DEBUG_PEERINFO
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Requesting list of peers from PEERINFO service\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Requesting list of peers from PEERINFO service\n");
#endif
- tqe = GNUNET_malloc (sizeof (struct TransmissionQueueEntry) +
- sizeof (struct GNUNET_MessageHeader));
- tqe->size = sizeof (struct GNUNET_MessageHeader);
- lapm = (struct GNUNET_MessageHeader *) &tqe[1];
- lapm->size = htons (sizeof (struct GNUNET_MessageHeader));
- lapm->type = htons (GNUNET_MESSAGE_TYPE_PEERINFO_GET_ALL);
- }
+ tqe =
+ GNUNET_malloc (sizeof (struct TransmissionQueueEntry) +
+ sizeof (struct GNUNET_MessageHeader));
+ tqe->size = sizeof (struct GNUNET_MessageHeader);
+ lapm = (struct GNUNET_MessageHeader *) &tqe[1];
+ lapm->size = htons (sizeof (struct GNUNET_MessageHeader));
+ lapm->type = htons (GNUNET_MESSAGE_TYPE_PEERINFO_GET_ALL);
+ }
else
- {
+ {
#if DEBUG_PEERINFO
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Requesting information on peer `%4s' from PEERINFO service\n",
- GNUNET_i2s (peer));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Requesting information on peer `%4s' from PEERINFO service\n",
+ GNUNET_i2s (peer));
#endif
- tqe = GNUNET_malloc (sizeof (struct TransmissionQueueEntry) +
- sizeof (struct ListPeerMessage));
- tqe->size = sizeof (struct ListPeerMessage);
- lpm = (struct ListPeerMessage *) &tqe[1];
- lpm->header.size = htons (sizeof (struct ListPeerMessage));
- lpm->header.type = htons (GNUNET_MESSAGE_TYPE_PEERINFO_GET);
- memcpy (&lpm->peer, peer, sizeof (struct GNUNET_PeerIdentity));
- }
+ tqe =
+ GNUNET_malloc (sizeof (struct TransmissionQueueEntry) +
+ sizeof (struct ListPeerMessage));
+ tqe->size = sizeof (struct ListPeerMessage);
+ lpm = (struct ListPeerMessage *) &tqe[1];
+ lpm->header.size = htons (sizeof (struct ListPeerMessage));
+ lpm->header.type = htons (GNUNET_MESSAGE_TYPE_PEERINFO_GET);
+ memcpy (&lpm->peer, peer, sizeof (struct GNUNET_PeerIdentity));
+ }
ic = GNUNET_malloc (sizeof (struct GNUNET_PEERINFO_IteratorContext));
ic->h = h;
ic->tqe = tqe;
ic->callback = callback;
ic->callback_cls = callback_cls;
ic->timeout = GNUNET_TIME_relative_to_absolute (timeout);
- ic->timeout_task = GNUNET_SCHEDULER_add_delayed (timeout,
- &signal_timeout,
- ic);
+ ic->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (timeout, &signal_timeout, ic);
tqe->timeout = ic->timeout;
tqe->cont = &iterator_start_receive;
tqe->cont_cls = ic;
tqe->timeout = ic->timeout;
- GNUNET_CONTAINER_DLL_insert_after (h->tq_head,
- h->tq_tail,
- h->tq_tail,
- tqe);
+ GNUNET_CONTAINER_DLL_insert_after (h->tq_head, h->tq_tail, h->tq_tail, tqe);
trigger_transmit (h);
return ic;
}
-
/**
* Cancel an iteration over peer information.
*
GNUNET_PEERINFO_iterate_cancel (struct GNUNET_PEERINFO_IteratorContext *ic)
{
if (ic->timeout_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (ic->timeout_task);
- ic->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- }
+ {
+ GNUNET_SCHEDULER_cancel (ic->timeout_task);
+ ic->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ }
ic->callback = NULL;
- if (ic->in_receive)
- return; /* need to finish processing */
- GNUNET_CONTAINER_DLL_remove (ic->h->tq_head,
- ic->h->tq_tail,
- ic->tqe);
+ if (GNUNET_YES == ic->in_receive)
+ return; /* need to finish processing */
+ GNUNET_CONTAINER_DLL_remove (ic->h->tq_head, ic->h->tq_tail, ic->tqe);
GNUNET_free (ic->tqe);
GNUNET_free (ic);
}