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22 * @file testbed/gnunet-service-testbed_connectionpool.c
23 * @brief connection pooling for connections to peers' services
24 * @author Sree Harsha Totakura <sreeharsha@totakura.in>
27 #include "gnunet-service-testbed.h"
28 #include "gnunet-service-testbed_connectionpool.h"
29 #include "testbed_api_operations.h"
30 #include "gnunet_transport_service.h"
33 * Redefine LOG with a changed log component string
38 #define LOG(kind, ...) \
39 GNUNET_log_from (kind, "testbed-connectionpool", __VA_ARGS__)
43 * Time to expire a cache entry
45 #define CACHE_EXPIRY \
46 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15)
50 * The request handle for obtaining a pooled connection
52 struct GST_ConnectionPool_GetHandle;
58 struct PooledConnection
61 * Next ptr for placing this object in the DLL of least recently used pooled
64 struct PooledConnection *next;
67 * Prev ptr for placing this object in the DLL of the least recently used
70 struct PooledConnection *prev;
73 * The transport handle to the peer corresponding to this entry; can be NULL
75 struct GNUNET_TRANSPORT_CoreHandle *handle_transport;
78 * The core handle to the peer corresponding to this entry; can be NULL
80 struct GNUNET_CORE_Handle *handle_core;
83 * The ATS handle to the peer correspondign to this entry; can be NULL.
85 struct GNUNET_ATS_ConnectivityHandle *handle_ats_connectivity;
88 * The operation handle for transport handle
90 struct GNUNET_TESTBED_Operation *op_transport;
93 * The operation handle for core handle
95 struct GNUNET_TESTBED_Operation *op_core;
98 * The operation handle for ATS handle
100 struct GNUNET_TESTBED_Operation *op_ats_connectivity;
103 * The peer identity of this peer. Will be set upon opening a connection to
104 * the peers CORE service. Will be NULL until then and after the CORE
105 * connection is closed
107 struct GNUNET_PeerIdentity *peer_identity;
110 * The configuration of the peer. Should be not NULL as long as the
111 * core_handle or transport_handle are valid
113 struct GNUNET_CONFIGURATION_Handle *cfg;
116 * DLL head for the queue to serve notifications when a peer is connected
118 struct GST_ConnectionPool_GetHandle *head_notify;
121 * DLL tail for the queue to serve notifications when a peer is connected
123 struct GST_ConnectionPool_GetHandle *tail_notify;
126 * DLL head for the queue of #GST_ConnectionPool_GetHandle requests that are
127 * waiting for this connection to be opened
129 struct GST_ConnectionPool_GetHandle *head_waiting;
132 * DLL tail for the queue of #GST_ConnectionPool_GetHandle requests that are
133 * waiting for this connection to be opened
135 struct GST_ConnectionPool_GetHandle *tail_waiting;
138 * The task to expire this connection from the connection pool
140 struct GNUNET_SCHEDULER_Task *expire_task;
143 * The task to notify a waiting #GST_ConnectionPool_GetHandle object
145 struct GNUNET_SCHEDULER_Task *notify_task;
148 * Number of active requests using this pooled connection
153 * Is this entry in LRU
158 * Is this entry present in the connection pool
163 * The index of this peer
170 * The request handle for obtaining a pooled connection
172 struct GST_ConnectionPool_GetHandle
175 * The next ptr for inclusion in the notification DLLs. At first the object
176 * is placed in the waiting DLL of the corresponding #PooledConnection
177 * object. After the handle is opened it is moved to the notification DLL if
178 * @p connect_notify_cb and @p target are not NULL
180 struct GST_ConnectionPool_GetHandle *next;
183 * The prev ptr for inclusion in the notification DLLs
185 struct GST_ConnectionPool_GetHandle *prev;
188 * The pooled connection object this handle corresponds to
190 struct PooledConnection *entry;
193 * The cache callback to call when a handle is available
195 GST_connection_pool_connection_ready_cb cb;
198 * The closure for the above callback
203 * The peer identity of the target peer. When this target peer is connected,
204 * call the notify callback
206 const struct GNUNET_PeerIdentity *target;
209 * The callback to be called for serving notification that the target peer is
212 GST_connection_pool_peer_connect_notify connect_notify_cb;
215 * The closure for the notify callback
217 void *connect_notify_cb_cls;
220 * The service we want to connect to
222 enum GST_ConnectionPool_Service service;
225 * Did we call the pool_connection_ready_cb already?
227 int connection_ready_called;
230 * Are we waiting for any peer connect notifications?
237 * A hashmap for quickly finding connections in the connection pool
239 static struct GNUNET_CONTAINER_MultiHashMap32 *map;
242 * DLL head for maitaining the least recently used #PooledConnection objects.
243 * The head is the least recently used object.
245 static struct PooledConnection *head_lru;
248 * DLL tail for maitaining the least recently used #PooledConnection objects
250 static struct PooledConnection *tail_lru;
253 * DLL head for maintaining #PooledConnection objects that are not added into
254 * the connection pool as it was full at the time the object's creation
257 static struct PooledConnection *head_not_pooled;
260 * DLL tail for maintaining #PooledConnection objects that are not added into
261 * the connection pool as it was full at the time the object's creation
263 static struct PooledConnection *tail_not_pooled;
266 * The maximum number of entries that can be present in the connection pool
268 static unsigned int max_size;
272 * Cancel the expiration task of the give #PooledConnection object
274 * @param entry the #PooledConnection object
277 expire_task_cancel (struct PooledConnection *entry);
281 * Destroy a #PooledConnection object
283 * @param entry the #PooledConnection object
286 destroy_pooled_connection (struct PooledConnection *entry)
288 GNUNET_assert ((NULL == entry->head_notify) && (NULL == entry->tail_notify));
289 GNUNET_assert ((NULL == entry->head_waiting) &&
290 (NULL == entry->tail_waiting));
291 GNUNET_assert (0 == entry->demand);
292 expire_task_cancel (entry);
294 GNUNET_CONTAINER_DLL_remove (head_lru, tail_lru, entry);
298 GNUNET_CONTAINER_multihashmap32_remove (map, entry->index, entry));
299 if (NULL != entry->notify_task)
301 GNUNET_SCHEDULER_cancel (entry->notify_task);
302 entry->notify_task = NULL;
304 LOG_DEBUG ("Cleaning up handles of a pooled connection\n");
305 if (NULL != entry->handle_transport)
306 GNUNET_assert (NULL != entry->op_transport);
307 if (NULL != entry->op_transport)
309 GNUNET_TESTBED_operation_done (entry->op_transport);
310 entry->op_transport = NULL;
312 if (NULL != entry->handle_ats_connectivity)
313 GNUNET_assert (NULL != entry->op_ats_connectivity);
314 if (NULL != entry->op_ats_connectivity)
316 GNUNET_TESTBED_operation_done (entry->op_ats_connectivity);
317 entry->op_ats_connectivity = NULL;
319 if (NULL != entry->op_core)
321 GNUNET_TESTBED_operation_done (entry->op_core);
322 entry->op_core = NULL;
324 GNUNET_assert (NULL == entry->handle_core);
325 GNUNET_assert (NULL == entry->handle_ats_connectivity);
326 GNUNET_assert (NULL == entry->handle_transport);
327 GNUNET_CONFIGURATION_destroy (entry->cfg);
333 * Expire a #PooledConnection object
335 * @param cls the #PooledConnection object
340 struct PooledConnection *entry = cls;
342 entry->expire_task = NULL;
343 destroy_pooled_connection (entry);
348 * Cancel the expiration task of the give #PooledConnection object
350 * @param entry the #PooledConnection object
353 expire_task_cancel (struct PooledConnection *entry)
355 if (NULL != entry->expire_task)
357 GNUNET_SCHEDULER_cancel (entry->expire_task);
358 entry->expire_task = NULL;
364 * Function to add a #PooledConnection object into LRU and begin the expiry task
366 * @param entry the #PooledConnection object
369 add_to_lru (struct PooledConnection *entry)
371 GNUNET_assert (0 == entry->demand);
372 GNUNET_assert (! entry->in_lru);
373 GNUNET_CONTAINER_DLL_insert_tail (head_lru, tail_lru, entry);
374 entry->in_lru = GNUNET_YES;
375 GNUNET_assert (NULL == entry->expire_task);
377 GNUNET_SCHEDULER_add_delayed (CACHE_EXPIRY, &expire, entry);
382 * Function to find a #GST_ConnectionPool_GetHandle which is waiting for one of
383 * the handles in given entry which are now available.
385 * @param entry the pooled connection whose active list has to be searched
386 * @param head the starting list element in the GSTCacheGetHandle where the
387 * search has to be begin
388 * @return a suitable GSTCacheGetHandle whose handle ready notify callback
389 * hasn't been called yet. NULL if no such suitable GSTCacheGetHandle
392 static struct GST_ConnectionPool_GetHandle *
393 search_waiting (const struct PooledConnection *entry,
394 struct GST_ConnectionPool_GetHandle *head)
396 struct GST_ConnectionPool_GetHandle *gh;
398 for (gh = head; NULL != gh; gh = gh->next)
402 case GST_CONNECTIONPOOL_SERVICE_CORE:
403 if (NULL == entry->handle_core)
405 if (NULL == entry->peer_identity)
406 continue; /* CORE connection isn't ready yet */
409 case GST_CONNECTIONPOOL_SERVICE_TRANSPORT:
410 if (NULL == entry->handle_transport)
414 case GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY:
415 if (NULL == entry->handle_ats_connectivity)
426 * A handle in the #PooledConnection object pointed by @a cls is ready and there
427 * is a #GST_ConnectionPool_GetHandle object waiting in the waiting list. This
428 * function retrieves that object and calls the handle ready callback. It
429 * further schedules itself if there are similar waiting objects which can be
432 * @param cls the #PooledConnection object
435 connection_ready (void *cls)
437 struct PooledConnection *entry = cls;
438 struct GST_ConnectionPool_GetHandle *gh;
439 struct GST_ConnectionPool_GetHandle *gh_next;
441 GNUNET_assert (NULL != entry->notify_task);
442 entry->notify_task = NULL;
443 gh = search_waiting (entry, entry->head_waiting);
444 GNUNET_assert (NULL != gh);
446 if (NULL != gh->next)
447 gh_next = search_waiting (entry, gh->next);
448 GNUNET_CONTAINER_DLL_remove (entry->head_waiting, entry->tail_waiting, gh);
449 gh->connection_ready_called = 1;
451 entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready, entry);
452 if ((NULL != gh->target) && (NULL != gh->connect_notify_cb))
454 GNUNET_CONTAINER_DLL_insert_tail (entry->head_notify,
457 gh->notify_waiting = 1;
459 LOG_DEBUG ("Connection ready for handle type %u\n", gh->service);
462 entry->handle_transport,
463 entry->handle_ats_connectivity,
464 entry->peer_identity,
470 * Function called from peer connect notify callbacks from CORE and TRANSPORT
471 * connections. This function calls the pending peer connect notify callbacks
472 * which are queued in an entry.
474 * @param cls the #PooledConnection object
475 * @param peer the peer that connected
476 * @param service the service where this notification has originated
479 peer_connect_notify_cb (void *cls,
480 const struct GNUNET_PeerIdentity *peer,
481 const enum GST_ConnectionPool_Service service)
483 struct PooledConnection *entry = cls;
484 struct GST_ConnectionPool_GetHandle *gh;
485 struct GST_ConnectionPool_GetHandle *gh_next;
486 GST_connection_pool_peer_connect_notify cb;
489 for (gh = entry->head_notify; NULL != gh;)
491 GNUNET_assert (NULL != gh->target);
492 GNUNET_assert (NULL != gh->connect_notify_cb);
493 GNUNET_assert (gh->connection_ready_called);
494 if (service != gh->service)
499 if (0 != memcmp (gh->target, peer, sizeof(struct GNUNET_PeerIdentity)))
504 cb = gh->connect_notify_cb;
505 cb_cls = gh->connect_notify_cb_cls;
507 GNUNET_CONTAINER_DLL_remove (entry->head_notify, entry->tail_notify, gh);
508 gh->notify_waiting = 0;
509 LOG_DEBUG ("Peer connected to peer %u at service %u\n",
519 * Function called to notify transport users that another
520 * peer connected to us.
522 * @param cls the #PooledConnection object
523 * @param peer the peer that connected
524 * @param mq queue for sending data to @a peer
528 transport_peer_connect_notify_cb (void *cls,
529 const struct GNUNET_PeerIdentity *peer,
530 struct GNUNET_MQ_Handle *mq)
532 struct PooledConnection *entry = cls;
534 peer_connect_notify_cb (entry, peer, GST_CONNECTIONPOOL_SERVICE_TRANSPORT);
540 * Function called when resources for opening a connection to TRANSPORT are
543 * @param cls the #PooledConnection object
546 opstart_get_handle_transport (void *cls)
548 struct PooledConnection *entry = cls;
550 GNUNET_assert (NULL != entry);
551 LOG_DEBUG ("Opening a transport connection to peer %u\n", entry->index);
552 entry->handle_transport =
553 GNUNET_TRANSPORT_core_connect (entry->cfg,
557 &transport_peer_connect_notify_cb,
560 if (NULL == entry->handle_transport)
565 if (0 == entry->demand)
567 if (NULL != entry->notify_task)
569 if (NULL != search_waiting (entry, entry->head_waiting))
571 entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready, entry);
578 * Function called when the operation responsible for opening a TRANSPORT
579 * connection is marked as done.
581 * @param cls the cache entry
584 oprelease_get_handle_transport (void *cls)
586 struct PooledConnection *entry = cls;
588 if (NULL == entry->handle_transport)
590 GNUNET_TRANSPORT_core_disconnect (entry->handle_transport);
591 entry->handle_transport = NULL;
596 * Method called whenever a given peer connects at CORE level
598 * @param cls the #PooledConnection object
599 * @param peer peer identity this notification is about
600 * @param mq message queue for talking to @a peer
604 core_peer_connect_cb (void *cls,
605 const struct GNUNET_PeerIdentity *peer,
606 struct GNUNET_MQ_Handle *mq)
608 struct PooledConnection *entry = cls;
610 peer_connect_notify_cb (entry, peer, GST_CONNECTIONPOOL_SERVICE_CORE);
611 return (void *) peer;
616 * Function called after #GNUNET_CORE_connect() has succeeded (or failed
617 * for good). Note that the private key of the peer is intentionally
618 * not exposed here; if you need it, your process should try to read
619 * the private key file directly (which should work if you are
620 * authorized...). Implementations of this function must not call
621 * #GNUNET_CORE_disconnect() (other than by scheduling a new task to
624 * @param cls the #PooledConnection object
625 * @param my_identity ID of this peer, NULL if we failed
628 core_startup_cb (void *cls, const struct GNUNET_PeerIdentity *my_identity)
630 struct PooledConnection *entry = cls;
632 if (NULL == my_identity)
637 GNUNET_assert (NULL == entry->peer_identity);
638 entry->peer_identity = GNUNET_new (struct GNUNET_PeerIdentity);
639 *entry->peer_identity = *my_identity;
640 if (0 == entry->demand)
642 if (NULL != entry->notify_task)
644 if (NULL != search_waiting (entry, entry->head_waiting))
646 entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready, entry);
653 * Function called when resources for opening a connection to CORE are
656 * @param cls the #PooledConnection object
659 opstart_get_handle_core (void *cls)
661 struct PooledConnection *entry = cls;
663 GNUNET_assert (NULL != entry);
664 LOG_DEBUG ("Opening a CORE connection to peer %u\n", entry->index);
666 GNUNET_CORE_connect (entry->cfg,
668 &core_startup_cb, /* core startup notify */
669 &core_peer_connect_cb, /* peer connect notify */
670 NULL, /* peer disconnect notify */
676 * Function called when the operation responsible for opening a CORE
677 * connection is marked as done.
679 * @param cls the #PooledConnection object
682 oprelease_get_handle_core (void *cls)
684 struct PooledConnection *entry = cls;
686 if (NULL == entry->handle_core)
688 GNUNET_CORE_disconnect (entry->handle_core);
689 entry->handle_core = NULL;
690 GNUNET_free_non_null (entry->peer_identity);
691 entry->peer_identity = NULL;
696 * Function called when resources for opening a connection to ATS are
699 * @param cls the #PooledConnection object
702 opstart_get_handle_ats_connectivity (void *cls)
704 struct PooledConnection *entry = cls;
706 entry->handle_ats_connectivity = GNUNET_ATS_connectivity_init (entry->cfg);
711 * Function called when the operation responsible for opening a ATS
712 * connection is marked as done.
714 * @param cls the #PooledConnection object
717 oprelease_get_handle_ats_connectivity (void *cls)
719 struct PooledConnection *entry = cls;
721 if (NULL == entry->handle_ats_connectivity)
723 GNUNET_ATS_connectivity_done (entry->handle_ats_connectivity);
724 entry->handle_ats_connectivity = NULL;
729 * This function will be called for every #PooledConnection object in @p map
732 * @param key current key code
733 * @param value the #PooledConnection object
734 * @return #GNUNET_YES if we should continue to
739 cleanup_iterator (void *cls, uint32_t key, void *value)
741 struct PooledConnection *entry = value;
743 GNUNET_assert (NULL != entry);
744 destroy_pooled_connection (entry);
750 * Initialise the connection pool.
752 * @param size the size of the connection pool. Each entry in the connection
753 * pool can handle a connection to each of the services enumerated in
754 * #GST_ConnectionPool_Service
757 GST_connection_pool_init (unsigned int size)
762 GNUNET_assert (NULL == map);
763 map = GNUNET_CONTAINER_multihashmap32_create (((size * 3) / 4) + 1);
768 * Cleanup the connection pool
771 GST_connection_pool_destroy ()
773 struct PooledConnection *entry;
779 GNUNET_CONTAINER_multihashmap32_iterate (map, &cleanup_iterator, NULL));
780 GNUNET_CONTAINER_multihashmap32_destroy (map);
783 while (NULL != (entry = head_lru))
785 GNUNET_CONTAINER_DLL_remove (head_lru, tail_lru, entry);
786 destroy_pooled_connection (entry);
788 GNUNET_assert (NULL == head_not_pooled);
793 * Get a connection handle to @a service. If the connection is opened before
794 * and the connection handle is present in the connection pool, it is returned
795 * through @a cb. @a peer_id is used for the lookup in the connection pool. If
796 * the connection handle is not present in the connection pool, a new connection
797 * handle is opened for the @a service using @a cfg. Additionally, @a target,
798 * @a connect_notify_cb can be specified to get notified when @a target is
799 * connected at @a service.
801 * @note @a connect_notify_cb will not be called if @a target is
802 * already connected @a service level. Use
803 * GNUNET_TRANSPORT_check_peer_connected() or a similar function from the
804 * respective @a service's API to check if the target peer is already connected
805 * or not. @a connect_notify_cb will be called only once or never (in case @a
806 * target cannot be connected or is already connected).
808 * @param peer_id the index of the peer
809 * @param cfg the configuration with which the transport handle has to be
810 * created if it was not present in the cache
811 * @param service the service of interest
812 * @param cb the callback to notify when the transport handle is available
813 * @param cb_cls the closure for @a cb
814 * @param target the peer identify of the peer whose connection to our TRANSPORT
815 * subsystem will be notified through the @a connect_notify_cb. Can be
817 * @param connect_notify_cb the callback to call when the @a target peer is
818 * connected. This callback will only be called once or never again (in
819 * case the target peer cannot be connected). Can be NULL
820 * @param connect_notify_cb_cls the closure for @a connect_notify_cb
821 * @return the handle which can be used cancel or mark that the handle is no
824 struct GST_ConnectionPool_GetHandle *
825 GST_connection_pool_get_handle (
826 unsigned int peer_id,
827 const struct GNUNET_CONFIGURATION_Handle *cfg,
828 enum GST_ConnectionPool_Service service,
829 GST_connection_pool_connection_ready_cb cb,
831 const struct GNUNET_PeerIdentity *target,
832 GST_connection_pool_peer_connect_notify connect_notify_cb,
833 void *connect_notify_cb_cls)
835 struct GST_ConnectionPool_GetHandle *gh;
836 struct PooledConnection *entry;
837 struct GNUNET_TESTBED_Operation *op;
841 peer_id32 = (uint32_t) peer_id;
845 entry = GNUNET_CONTAINER_multihashmap32_get (map, peer_id32);
850 GNUNET_assert (0 == entry->demand);
851 expire_task_cancel (entry);
852 GNUNET_CONTAINER_DLL_remove (head_lru, tail_lru, entry);
853 entry->in_lru = GNUNET_NO;
857 case GST_CONNECTIONPOOL_SERVICE_TRANSPORT:
858 handle = entry->handle_transport;
860 LOG_DEBUG ("Found TRANSPORT handle for peer %u\n", entry->index);
863 case GST_CONNECTIONPOOL_SERVICE_CORE:
864 handle = entry->handle_core;
866 LOG_DEBUG ("Found CORE handle for peer %u\n", entry->index);
869 case GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY:
870 handle = entry->handle_ats_connectivity;
872 LOG_DEBUG ("Found ATS CONNECTIVITY handle for peer %u\n", entry->index);
878 entry = GNUNET_new (struct PooledConnection);
879 entry->index = peer_id32;
881 (GNUNET_CONTAINER_multihashmap32_size (map) < max_size))
883 GNUNET_assert (GNUNET_OK ==
884 GNUNET_CONTAINER_multihashmap32_put (
888 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
889 entry->in_pool = GNUNET_YES;
893 GNUNET_CONTAINER_DLL_insert_tail (head_not_pooled,
897 entry->cfg = GNUNET_CONFIGURATION_dup (cfg);
900 gh = GNUNET_new (struct GST_ConnectionPool_GetHandle);
905 gh->connect_notify_cb = connect_notify_cb;
906 gh->connect_notify_cb_cls = connect_notify_cb_cls;
907 gh->service = service;
908 GNUNET_CONTAINER_DLL_insert (entry->head_waiting, entry->tail_waiting, gh);
911 if (NULL == entry->notify_task)
913 if (NULL != search_waiting (entry, entry->head_waiting))
915 GNUNET_SCHEDULER_add_now (&connection_ready, entry);
922 case GST_CONNECTIONPOOL_SERVICE_TRANSPORT:
923 if (NULL != entry->op_transport)
924 return gh; /* Operation pending */
925 op = GNUNET_TESTBED_operation_create_ (entry,
926 &opstart_get_handle_transport,
927 &oprelease_get_handle_transport);
928 entry->op_transport = op;
931 case GST_CONNECTIONPOOL_SERVICE_CORE:
932 if (NULL != entry->op_core)
933 return gh; /* Operation pending */
934 op = GNUNET_TESTBED_operation_create_ (entry,
935 &opstart_get_handle_core,
936 &oprelease_get_handle_core);
940 case GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY:
941 if (NULL != entry->op_ats_connectivity)
942 return gh; /* Operation pending */
944 GNUNET_TESTBED_operation_create_ (entry,
945 &opstart_get_handle_ats_connectivity,
946 &oprelease_get_handle_ats_connectivity);
947 entry->op_ats_connectivity = op;
950 GNUNET_TESTBED_operation_queue_insert_ (GST_opq_openfds, op);
951 GNUNET_TESTBED_operation_begin_wait_ (op);
957 * Relinquish a #GST_ConnectionPool_GetHandle object. If the connection
958 * associated with the object is currently being used by other
959 * #GST_ConnectionPool_GetHandle objects, it is left in the connection pool. If
960 * no other objects are using the connection and the connection pool is not full
961 * then it is placed in a LRU queue. If the connection pool is full, then
962 * connections from the LRU queue are evicted and closed to create place for
963 * this connection. If the connection pool if full and the LRU queue is empty,
964 * then the connection is closed.
966 * @param gh the handle
969 GST_connection_pool_get_handle_done (struct GST_ConnectionPool_GetHandle *gh)
971 struct PooledConnection *entry;
976 LOG_DEBUG ("Cleaning up get handle %p for service %u, peer %u\n",
980 if (! gh->connection_ready_called)
982 GNUNET_CONTAINER_DLL_remove (entry->head_waiting, entry->tail_waiting, gh);
983 if ((NULL == search_waiting (entry, entry->head_waiting)) &&
984 (NULL != entry->notify_task))
986 GNUNET_SCHEDULER_cancel (entry->notify_task);
987 entry->notify_task = NULL;
990 if (gh->notify_waiting)
992 GNUNET_CONTAINER_DLL_remove (entry->head_notify, entry->tail_notify, gh);
993 gh->notify_waiting = 0;
997 GNUNET_assert (! entry->in_lru);
998 if (! entry->in_pool)
999 GNUNET_CONTAINER_DLL_remove (head_not_pooled, tail_not_pooled, entry);
1003 GNUNET_CONTAINER_multihashmap32_contains (map, entry->index))
1005 if (GNUNET_CONTAINER_multihashmap32_size (map) == max_size)
1007 if (NULL == head_lru)
1009 destroy_pooled_connection (head_lru);
1011 GNUNET_assert (GNUNET_OK ==
1012 GNUNET_CONTAINER_multihashmap32_put (
1016 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
1017 entry->in_pool = GNUNET_YES;
1021 GNUNET_assert (0 < entry->demand);
1023 if (0 != entry->demand)
1030 destroy_pooled_connection (entry);