#include "gnunet_util_lib.h"
+/**
+ * Minimum required delay between calls to GNUNET_TRANSPORT_try_connect.
+ */
+#define MAX_CONNECT_FREQUENCY_DELAY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 250)
+
/**
* For how long do we blacklist a peer after a failed connection
* attempt? This is the baseline factor which is then multiplied by
*/
GNUNET_SCHEDULER_TaskIdentifier hello_delay_task;
+ /**
+ * Task for issuing GNUNET_TRANSPORT_try_connect for this peer.
+ */
+ GNUNET_SCHEDULER_TaskIdentifier attempt_connect_task;
+
/**
* ID of task we use to clear peers from the greylist.
*/
*/
static struct GNUNET_TRANSPORT_Blacklist *blacklist;
+/**
+ * When can we next ask transport to create a connection?
+ */
+static struct GNUNET_TIME_Absolute next_connect_attempt;
+
/**
* Task scheduled to try to add peers.
*/
* @return GNUNET_YES (always: continue to iterate)
*/
static int
-free_peer (void *cls, const GNUNET_HashCode * pid, void *value)
+free_peer (void *cls, const struct GNUNET_HashCode * pid, void *value)
{
struct Peer *pos = value;
+ GNUNET_break (GNUNET_NO == pos->is_connected);
GNUNET_break (GNUNET_OK ==
GNUNET_CONTAINER_multihashmap_remove (peers, pid, pos));
if (pos->hello_req != NULL)
GNUNET_CORE_notify_transmit_ready_cancel (pos->hello_req);
if (pos->hello_delay_task != GNUNET_SCHEDULER_NO_TASK)
GNUNET_SCHEDULER_cancel (pos->hello_delay_task);
+ if (pos->attempt_connect_task != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel (pos->attempt_connect_task);
if (pos->greylist_clean_task != GNUNET_SCHEDULER_NO_TASK)
GNUNET_SCHEDULER_cancel (pos->greylist_clean_task);
GNUNET_free_non_null (pos->hello);
}
+/**
+ * Try to connect to the specified peer.
+ *
+ * @param cls peer to connect to
+ * @param tc scheduler context
+ */
+static void
+do_attempt_connect (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct Peer *pos = cls;
+ struct GNUNET_TIME_Relative delay;
+
+ pos->attempt_connect_task = GNUNET_SCHEDULER_NO_TASK;
+ if (GNUNET_YES == pos->is_connected)
+ return;
+ delay = GNUNET_TIME_absolute_get_remaining (next_connect_attempt);
+ if (delay.rel_value > 0)
+ {
+ pos->attempt_connect_task = GNUNET_SCHEDULER_add_delayed (delay,
+ &do_attempt_connect,
+ pos);
+ return;
+ }
+ next_connect_attempt = GNUNET_TIME_relative_to_absolute (MAX_CONNECT_FREQUENCY_DELAY);
+ attempt_connect (pos);
+}
+
+
+/**
+ * Schedule a task to try to connect to the specified peer.
+ *
+ * @param pos peer to connect to
+ */
+static void
+schedule_attempt_connect (struct Peer *pos)
+{
+ if (GNUNET_SCHEDULER_NO_TASK != pos->attempt_connect_task)
+ return;
+ pos->attempt_connect_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_absolute_get_remaining (next_connect_attempt),
+ &do_attempt_connect,
+ pos);
+}
+
+
/**
* Discard peer entries for greylisted peers
* where the greylisting has expired.
rem = GNUNET_TIME_absolute_get_remaining (pos->greylisted_until);
if (rem.rel_value == 0)
{
- attempt_connect (pos);
+ schedule_attempt_connect (pos);
}
else
{
* @return GNUNET_YES (continue iteration)
*/
static int
-find_advertisable_hello (void *cls, const GNUNET_HashCode * pid, void *value)
+find_advertisable_hello (void *cls, const struct GNUNET_HashCode * pid, void *value)
{
struct FindAdvHelloContext *fah = cls;
struct Peer *pos = value;
* @return GNUNET_YES (always)
*/
static int
-reschedule_hellos (void *cls, const GNUNET_HashCode * pid, void *value)
+reschedule_hellos (void *cls, const struct GNUNET_HashCode * pid, void *value)
{
struct Peer *peer = value;
struct Peer *skip = cls;
GNUNET_STATISTICS_set (stats, gettext_noop ("# peers connected"),
connection_count, GNUNET_NO);
pos = GNUNET_CONTAINER_multihashmap_get (peers, &peer->hashPubKey);
- if (pos == NULL)
+ if (NULL == pos)
{
pos = make_peer (peer, NULL, GNUNET_NO);
GNUNET_break (GNUNET_OK == is_connection_allowed (pos));
* @return GNUNET_YES (continue to iterate)
*/
static int
-try_add_peers (void *cls, const GNUNET_HashCode * pid, void *value)
+try_add_peers (void *cls, const struct GNUNET_HashCode * pid, void *value)
{
struct Peer *pos = value;
- attempt_connect (pos);
+ schedule_attempt_connect (pos);
return GNUNET_YES;
}
GNUNET_CONTAINER_multihashmap_iterate (peers, &try_add_peers, NULL);
}
+
/**
* Method called whenever a peer disconnects.
*
"Core told us that we disconnected from `%s'\n",
GNUNET_i2s (peer));
pos = GNUNET_CONTAINER_multihashmap_get (peers, &peer->hashPubKey);
- if (pos == NULL)
+ if (NULL == pos)
{
GNUNET_break (0);
return;
if (GNUNET_NO == have_address)
return; /* no point in advertising this one... */
peer = GNUNET_CONTAINER_multihashmap_get (peers, &pid.hashPubKey);
- if (peer == NULL)
+ if (NULL == peer)
{
peer = make_peer (&pid, hello, GNUNET_NO);
}
GNUNET_CONTAINER_bloomfilter_free (pos->filter);
pos->filter = NULL;
}
- if ((!pos->is_connected) && (!pos->is_friend) &&
+ if ((GNUNET_NO == pos->is_connected) && (GNUNET_NO == pos->is_friend) &&
(0 ==
GNUNET_TIME_absolute_get_remaining (pos->
greylisted_until).rel_value))
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Considering connecting to peer `%s'\n",
GNUNET_i2s (peer));
- attempt_connect (pos);
+ schedule_attempt_connect (pos);
}
GNUNET_STATISTICS_update (stats, gettext_noop ("# HELLO messages received"),
1, GNUNET_NO);
peer = GNUNET_CONTAINER_multihashmap_get (peers, &pid.hashPubKey);
- if (peer == NULL)
+ if (NULL == peer)
{
if ((GNUNET_YES == friends_only) || (friend_count < minimum_friend_count))
return GNUNET_OK;
GNUNET_PEERINFO_notify_cancel (peerinfo_notify);
peerinfo_notify = NULL;
}
- if (GNUNET_SCHEDULER_NO_TASK != add_task)
- {
- GNUNET_SCHEDULER_cancel (add_task);
- add_task = GNUNET_SCHEDULER_NO_TASK;
- }
GNUNET_TRANSPORT_disconnect (transport);
transport = NULL;
- GNUNET_CONTAINER_multihashmap_iterate (peers, &free_peer, NULL);
- GNUNET_CONTAINER_multihashmap_destroy (peers);
if (handle != NULL)
{
GNUNET_CORE_disconnect (handle);
handle = NULL;
}
whitelist_peers ();
+ if (GNUNET_SCHEDULER_NO_TASK != add_task)
+ {
+ GNUNET_SCHEDULER_cancel (add_task);
+ add_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ GNUNET_CONTAINER_multihashmap_iterate (peers, &free_peer, NULL);
+ GNUNET_CONTAINER_multihashmap_destroy (peers);
+ peers = NULL;
if (stats != NULL)
{
GNUNET_STATISTICS_destroy (stats, GNUNET_NO);
blacklist = GNUNET_TRANSPORT_blacklist (cfg, &blacklist_check, NULL);
transport = GNUNET_TRANSPORT_connect (cfg, NULL, NULL, NULL, NULL, NULL);
handle =
- GNUNET_CORE_connect (cfg, 1, NULL, &core_init, &connect_notify,
+ GNUNET_CORE_connect (cfg, NULL, &core_init, &connect_notify,
&disconnect_notify, NULL, GNUNET_NO, NULL, GNUNET_NO,
handlers);
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &cleaning_task,
};
int ret;
+ if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+ return 2;
+
ret =
(GNUNET_OK ==
GNUNET_PROGRAM_run (argc, argv, "gnunet-daemon-topology",
projects / oweals / gnunet.git / blobdiff