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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"
32 * Redefine LOG with a changed log component string
37 #define LOG(kind,...) \
38 GNUNET_log_from (kind, "testbed-connectionpool", __VA_ARGS__)
42 * Time to expire a cache entry
44 #define CACHE_EXPIRY \
45 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15)
49 * The request handle for obtaining a pooled connection
51 struct GST_ConnectionPool_GetHandle;
57 struct PooledConnection
60 * Next ptr for placing this object in the DLL of least recently used pooled
63 struct PooledConnection *next;
66 * Prev ptr for placing this object in the DLL of the least recently used
69 struct PooledConnection *prev;
72 * The transport handle to the peer corresponding to this entry; can be NULL
74 struct GNUNET_TRANSPORT_Handle *handle_transport;
77 * The core handle to the peer corresponding to this entry; can be NULL
79 struct GNUNET_CORE_Handle *handle_core;
82 * The ATS handle to the peer correspondign to this entry; can be NULL.
84 struct GNUNET_ATS_ConnectivityHandle *handle_ats_connectivity;
87 * The operation handle for transport handle
89 struct GNUNET_TESTBED_Operation *op_transport;
92 * The operation handle for core handle
94 struct GNUNET_TESTBED_Operation *op_core;
97 * The operation handle for ATS handle
99 struct GNUNET_TESTBED_Operation *op_ats_connectivity;
102 * The peer identity of this peer. Will be set upon opening a connection to
103 * the peers CORE service. Will be NULL until then and after the CORE
104 * connection is closed
106 struct GNUNET_PeerIdentity *peer_identity;
109 * The configuration of the peer. Should be not NULL as long as the core_handle
110 * or transport_handle are valid
112 struct GNUNET_CONFIGURATION_Handle *cfg;
115 * DLL head for the queue to serve notifications when a peer is connected
117 struct GST_ConnectionPool_GetHandle *head_notify;
120 * DLL tail for the queue to serve notifications when a peer is connected
122 struct GST_ConnectionPool_GetHandle *tail_notify;
125 * DLL head for the queue of #GST_ConnectionPool_GetHandle requests that are
126 * waiting for this connection to be opened
128 struct GST_ConnectionPool_GetHandle *head_waiting;
131 * DLL tail for the queue of #GST_ConnectionPool_GetHandle requests that are
132 * waiting for this connection to be opened
134 struct GST_ConnectionPool_GetHandle *tail_waiting;
137 * The task to expire this connection from the connection pool
139 struct GNUNET_SCHEDULER_Task * expire_task;
142 * The task to notify a waiting #GST_ConnectionPool_GetHandle object
144 struct GNUNET_SCHEDULER_Task * notify_task;
147 * Number of active requests using this pooled connection
152 * Is this entry in LRU
157 * Is this entry present in the connection pool
162 * The index of this peer
169 * The request handle for obtaining a pooled connection
171 struct GST_ConnectionPool_GetHandle
174 * The next ptr for inclusion in the notification DLLs. At first the object
175 * is placed in the waiting DLL of the corresponding #PooledConnection
176 * object. After the handle is opened it is moved to the notification DLL if
177 * @p connect_notify_cb and @p target are not NULL
179 struct GST_ConnectionPool_GetHandle *next;
182 * The prev ptr for inclusion in the notification DLLs
184 struct GST_ConnectionPool_GetHandle *prev;
187 * The pooled connection object this handle corresponds to
189 struct PooledConnection *entry;
192 * The cache callback to call when a handle is available
194 GST_connection_pool_connection_ready_cb cb;
197 * The closure for the above callback
202 * The peer identity of the target peer. When this target peer is connected,
203 * call the notify callback
205 const struct GNUNET_PeerIdentity *target;
208 * The callback to be called for serving notification that the target peer is
211 GST_connection_pool_peer_connect_notify connect_notify_cb;
214 * The closure for the notify callback
216 void *connect_notify_cb_cls;
219 * The service we want to connect to
221 enum GST_ConnectionPool_Service service;
224 * Did we call the pool_connection_ready_cb already?
226 int connection_ready_called;
229 * Are we waiting for any peer connect notifications?
236 * A hashmap for quickly finding connections in the connection pool
238 static struct GNUNET_CONTAINER_MultiHashMap32 *map;
241 * DLL head for maitaining the least recently used #PooledConnection objects.
242 * The head is the least recently used object.
244 static struct PooledConnection *head_lru;
247 * DLL tail for maitaining the least recently used #PooledConnection objects
249 static struct PooledConnection *tail_lru;
252 * DLL head for maintaining #PooledConnection objects that are not added into
253 * the connection pool as it was full at the time the object's creation
256 static struct PooledConnection *head_not_pooled;
259 * DLL tail for maintaining #PooledConnection objects that are not added into
260 * the connection pool as it was full at the time the object's creation
262 static struct PooledConnection *tail_not_pooled;
265 * The maximum number of entries that can be present in the connection pool
267 static unsigned int max_size;
271 * Cancel the expiration task of the give #PooledConnection object
273 * @param entry the #PooledConnection object
276 expire_task_cancel (struct PooledConnection *entry);
280 * Destroy a #PooledConnection object
282 * @param entry the #PooledConnection object
285 destroy_pooled_connection (struct PooledConnection *entry)
287 GNUNET_assert ((NULL == entry->head_notify) && (NULL == entry->tail_notify));
288 GNUNET_assert ((NULL == entry->head_waiting) && (NULL ==
289 entry->tail_waiting));
290 GNUNET_assert (0 == entry->demand);
291 expire_task_cancel (entry);
293 GNUNET_CONTAINER_DLL_remove (head_lru, tail_lru, entry);
295 GNUNET_assert (GNUNET_OK ==
296 GNUNET_CONTAINER_multihashmap32_remove (map,
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);
376 entry->expire_task = GNUNET_SCHEDULER_add_delayed (CACHE_EXPIRY,
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 */
408 case GST_CONNECTIONPOOL_SERVICE_TRANSPORT:
409 if (NULL == entry->handle_transport)
412 case GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY:
413 if (NULL == entry->handle_ats_connectivity)
424 * A handle in the #PooledConnection object pointed by @a cls is ready and there
425 * is a #GST_ConnectionPool_GetHandle object waiting in the waiting list. This
426 * function retrieves that object and calls the handle ready callback. It
427 * further schedules itself if there are similar waiting objects which can be notified.
429 * @param cls the #PooledConnection object
432 connection_ready (void *cls)
434 struct PooledConnection *entry = cls;
435 struct GST_ConnectionPool_GetHandle *gh;
436 struct GST_ConnectionPool_GetHandle *gh_next;
438 GNUNET_assert (NULL != entry->notify_task);
439 entry->notify_task = NULL;
440 gh = search_waiting (entry, entry->head_waiting);
441 GNUNET_assert (NULL != gh);
443 if (NULL != gh->next)
444 gh_next = search_waiting (entry, gh->next);
445 GNUNET_CONTAINER_DLL_remove (entry->head_waiting,
448 gh->connection_ready_called = 1;
450 entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready,
452 if ( (NULL != gh->target) &&
453 (NULL != gh->connect_notify_cb) )
455 GNUNET_CONTAINER_DLL_insert_tail (entry->head_notify,
458 gh->notify_waiting = 1;
460 LOG_DEBUG ("Connection ready for handle type %u\n",
464 entry->handle_transport,
465 entry->handle_ats_connectivity,
466 entry->peer_identity);
471 * Function called from peer connect notify callbacks from CORE and TRANSPORT
472 * connections. This function calls the pending peer connect notify callbacks
473 * which are queued in an entry.
475 * @param cls the #PooledConnection object
476 * @param peer the peer that connected
477 * @param service the service where this notification has originated
480 peer_connect_notify_cb (void *cls,
481 const struct GNUNET_PeerIdentity *peer,
482 const enum GST_ConnectionPool_Service service)
484 struct PooledConnection *entry = cls;
485 struct GST_ConnectionPool_GetHandle *gh;
486 struct GST_ConnectionPool_GetHandle *gh_next;
487 GST_connection_pool_peer_connect_notify cb;
490 for (gh = entry->head_notify; NULL != gh;)
492 GNUNET_assert (NULL != gh->target);
493 GNUNET_assert (NULL != gh->connect_notify_cb);
494 GNUNET_assert (gh->connection_ready_called);
495 if (service != gh->service)
500 if (0 != memcmp (gh->target,
502 sizeof (struct GNUNET_PeerIdentity)))
507 cb = gh->connect_notify_cb;
508 cb_cls = gh->connect_notify_cb_cls;
510 GNUNET_CONTAINER_DLL_remove (entry->head_notify, entry->tail_notify, gh);
511 gh->notify_waiting = 0;
512 LOG_DEBUG ("Peer connected to peer %u at service %u\n",
522 * Function called to notify transport users that another
523 * peer connected to us.
525 * @param cls the #PooledConnection object
526 * @param peer the peer that connected
529 transport_peer_connect_notify_cb (void *cls,
530 const struct GNUNET_PeerIdentity *peer)
532 struct PooledConnection *entry = cls;
534 peer_connect_notify_cb (entry,
536 GST_CONNECTIONPOOL_SERVICE_TRANSPORT);
541 * Function called when resources for opening a connection to TRANSPORT are
544 * @param cls the #PooledConnection object
547 opstart_get_handle_transport (void *cls)
549 struct PooledConnection *entry = cls;
551 GNUNET_assert (NULL != entry);
552 LOG_DEBUG ("Opening a transport connection to peer %u\n", entry->index);
553 entry->handle_transport =
554 GNUNET_TRANSPORT_connect (entry->cfg, NULL, entry, NULL,
555 &transport_peer_connect_notify_cb, NULL);
556 if (NULL == entry->handle_transport)
561 if (0 == entry->demand)
563 if (NULL != entry->notify_task)
565 if (NULL != search_waiting (entry, entry->head_waiting))
567 entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready, entry);
574 * Function called when the operation responsible for opening a TRANSPORT
575 * connection is marked as done.
577 * @param cls the cache entry
580 oprelease_get_handle_transport (void *cls)
582 struct PooledConnection *entry = cls;
584 if (NULL == entry->handle_transport)
586 GNUNET_TRANSPORT_disconnect (entry->handle_transport);
587 entry->handle_transport = NULL;
592 * Method called whenever a given peer connects at CORE level
594 * @param cls the #PooledConnection object
595 * @param peer peer identity this notification is about
598 core_peer_connect_cb (void *cls, const struct GNUNET_PeerIdentity *peer)
600 struct PooledConnection *entry = cls;
602 peer_connect_notify_cb (entry, peer, GST_CONNECTIONPOOL_SERVICE_CORE);
607 * Function called after #GNUNET_CORE_connect() has succeeded (or failed
608 * for good). Note that the private key of the peer is intentionally
609 * not exposed here; if you need it, your process should try to read
610 * the private key file directly (which should work if you are
611 * authorized...). Implementations of this function must not call
612 * #GNUNET_CORE_disconnect() (other than by scheduling a new task to
615 * @param cls the #PooledConnection object
616 * @param my_identity ID of this peer, NULL if we failed
619 core_startup_cb (void *cls,
620 const struct GNUNET_PeerIdentity *my_identity)
622 struct PooledConnection *entry = cls;
624 if (NULL == my_identity)
629 GNUNET_assert (NULL == entry->peer_identity);
630 entry->peer_identity = GNUNET_new (struct GNUNET_PeerIdentity);
631 memcpy (entry->peer_identity,
633 sizeof (struct GNUNET_PeerIdentity));
634 if (0 == entry->demand)
636 if (NULL != entry->notify_task)
638 if (NULL != search_waiting (entry, entry->head_waiting))
640 entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready, entry);
647 * Function called when resources for opening a connection to CORE are
650 * @param cls the #PooledConnection object
653 opstart_get_handle_core (void *cls)
655 struct PooledConnection *entry = cls;
656 const struct GNUNET_CORE_MessageHandler no_handlers[] = {
660 GNUNET_assert (NULL != entry);
661 LOG_DEBUG ("Opening a CORE connection to peer %u\n", entry->index);
663 GNUNET_CORE_connect (entry->cfg, entry, /* closure */
664 &core_startup_cb, /* core startup notify */
665 &core_peer_connect_cb, /* peer connect notify */
666 NULL, /* peer disconnect notify */
667 NULL, /* inbound notify */
668 GNUNET_NO, /* inbound header only? */
669 NULL, /* outbound notify */
670 GNUNET_NO, /* outbound header only? */
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 =
707 GNUNET_ATS_connectivity_init (entry->cfg);
712 * Function called when the operation responsible for opening a ATS
713 * connection is marked as done.
715 * @param cls the #PooledConnection object
718 oprelease_get_handle_ats_connectivity (void *cls)
720 struct PooledConnection *entry = cls;
722 if (NULL == entry->handle_ats_connectivity)
724 GNUNET_ATS_connectivity_done (entry->handle_ats_connectivity);
725 entry->handle_ats_connectivity = NULL;
730 * This function will be called for every #PooledConnection object in @p map
733 * @param key current key code
734 * @param value the #PooledConnection object
735 * @return #GNUNET_YES if we should continue to
740 cleanup_iterator (void *cls,
744 struct PooledConnection *entry = value;
746 GNUNET_assert (NULL != entry);
747 destroy_pooled_connection (entry);
753 * Initialise the connection pool.
755 * @param size the size of the connection pool. Each entry in the connection
756 * pool can handle a connection to each of the services enumerated in
757 * #GST_ConnectionPool_Service
760 GST_connection_pool_init (unsigned int size)
765 GNUNET_assert (NULL == map);
766 map = GNUNET_CONTAINER_multihashmap32_create (((size * 3) / 4) + 1);
771 * Cleanup the connection pool
774 GST_connection_pool_destroy ()
776 struct PooledConnection *entry;
780 GNUNET_assert (GNUNET_SYSERR !=
781 GNUNET_CONTAINER_multihashmap32_iterate (map,
784 GNUNET_CONTAINER_multihashmap32_destroy (map);
787 while (NULL != (entry = head_lru))
789 GNUNET_CONTAINER_DLL_remove (head_lru, tail_lru, entry);
790 destroy_pooled_connection (entry);
792 GNUNET_assert (NULL == head_not_pooled);
797 * Get a connection handle to @a service. If the connection is opened before
798 * and the connection handle is present in the connection pool, it is returned
799 * through @a cb. @a peer_id is used for the lookup in the connection pool. If
800 * the connection handle is not present in the connection pool, a new connection
801 * handle is opened for the @a service using @a cfg. Additionally, @a target,
802 * @a connect_notify_cb can be specified to get notified when @a target is
803 * connected at @a service.
805 * @note @a connect_notify_cb will not be called if @a target is
806 * already connected @a service level. Use
807 * GNUNET_TRANSPORT_check_peer_connected() or a similar function from the
808 * respective @a service's API to check if the target peer is already connected or
809 * not. @a connect_notify_cb will be called only once or never (in case @a target
810 * cannot be connected or is already connected).
812 * @param peer_id the index of the peer
813 * @param cfg the configuration with which the transport handle has to be
814 * created if it was not present in the cache
815 * @param service the service of interest
816 * @param cb the callback to notify when the transport handle is available
817 * @param cb_cls the closure for @a cb
818 * @param target the peer identify of the peer whose connection to our TRANSPORT
819 * subsystem will be notified through the @a connect_notify_cb. Can be NULL
820 * @param connect_notify_cb the callback to call when the @a target peer is
821 * connected. This callback will only be called once or never again (in
822 * case the target peer cannot be connected). Can be NULL
823 * @param connect_notify_cb_cls the closure for @a connect_notify_cb
824 * @return the handle which can be used cancel or mark that the handle is no
827 struct GST_ConnectionPool_GetHandle *
828 GST_connection_pool_get_handle (unsigned int peer_id,
829 const struct GNUNET_CONFIGURATION_Handle *cfg,
830 enum GST_ConnectionPool_Service service,
831 GST_connection_pool_connection_ready_cb cb,
833 const struct GNUNET_PeerIdentity *target,
834 GST_connection_pool_peer_connect_notify connect_notify_cb,
835 void *connect_notify_cb_cls)
837 struct GST_ConnectionPool_GetHandle *gh;
838 struct PooledConnection *entry;
839 struct GNUNET_TESTBED_Operation *op;
843 peer_id32 = (uint32_t) peer_id;
847 entry = GNUNET_CONTAINER_multihashmap32_get (map, peer_id32);
852 GNUNET_assert (0 == entry->demand);
853 expire_task_cancel (entry);
854 GNUNET_CONTAINER_DLL_remove (head_lru, tail_lru, entry);
855 entry->in_lru = GNUNET_NO;
859 case GST_CONNECTIONPOOL_SERVICE_TRANSPORT:
860 handle = entry->handle_transport;
862 LOG_DEBUG ("Found TRANSPORT handle for peer %u\n",
865 case GST_CONNECTIONPOOL_SERVICE_CORE:
866 handle = entry->handle_core;
868 LOG_DEBUG ("Found CORE handle for peer %u\n",
871 case GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY:
872 handle = entry->handle_ats_connectivity;
874 LOG_DEBUG ("Found ATS CONNECTIVITY handle for peer %u\n",
881 entry = GNUNET_new (struct PooledConnection);
882 entry->index = peer_id32;
884 && (GNUNET_CONTAINER_multihashmap32_size (map) < max_size))
886 GNUNET_assert (GNUNET_OK ==
887 GNUNET_CONTAINER_multihashmap32_put (map,
890 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
891 entry->in_pool = GNUNET_YES;
895 GNUNET_CONTAINER_DLL_insert_tail (head_not_pooled,
899 entry->cfg = GNUNET_CONFIGURATION_dup (cfg);
902 gh = GNUNET_new (struct GST_ConnectionPool_GetHandle);
907 gh->connect_notify_cb = connect_notify_cb;
908 gh->connect_notify_cb_cls = connect_notify_cb_cls;
909 gh->service = service;
910 GNUNET_CONTAINER_DLL_insert (entry->head_waiting,
915 if (NULL == entry->notify_task)
917 if (NULL != search_waiting (entry, entry->head_waiting))
918 entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready,
926 case GST_CONNECTIONPOOL_SERVICE_TRANSPORT:
927 if (NULL != entry->op_transport)
928 return gh; /* Operation pending */
929 op = GNUNET_TESTBED_operation_create_ (entry,
930 &opstart_get_handle_transport,
931 &oprelease_get_handle_transport);
932 entry->op_transport = op;
934 case GST_CONNECTIONPOOL_SERVICE_CORE:
935 if (NULL != entry->op_core)
936 return gh; /* Operation pending */
937 op = GNUNET_TESTBED_operation_create_ (entry,
938 &opstart_get_handle_core,
939 &oprelease_get_handle_core);
942 case GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY:
943 if (NULL != entry->op_ats_connectivity)
944 return gh; /* Operation pending */
945 op = GNUNET_TESTBED_operation_create_ (entry,
946 &opstart_get_handle_ats_connectivity,
947 &oprelease_get_handle_ats_connectivity);
948 entry->op_ats_connectivity = op;
951 GNUNET_TESTBED_operation_queue_insert_ (GST_opq_openfds,
953 GNUNET_TESTBED_operation_begin_wait_ (op);
959 * Relinquish a #GST_ConnectionPool_GetHandle object. If the connection
960 * associated with the object is currently being used by other
961 * #GST_ConnectionPool_GetHandle objects, it is left in the connection pool. If
962 * no other objects are using the connection and the connection pool is not full
963 * then it is placed in a LRU queue. If the connection pool is full, then
964 * connections from the LRU queue are evicted and closed to create place for this
965 * connection. If the connection pool if full and the LRU queue is empty, then
966 * the connection is closed.
968 * @param gh the handle
971 GST_connection_pool_get_handle_done (struct GST_ConnectionPool_GetHandle *gh)
973 struct PooledConnection *entry;
978 LOG_DEBUG ("Cleaning up get handle %p for service %u, peer %u\n",
980 gh->service, entry->index);
981 if (! gh->connection_ready_called)
983 GNUNET_CONTAINER_DLL_remove (entry->head_waiting,
986 if ( (NULL == search_waiting (entry, entry->head_waiting)) &&
987 (NULL != entry->notify_task) )
989 GNUNET_SCHEDULER_cancel (entry->notify_task);
990 entry->notify_task = NULL;
993 if (gh->notify_waiting)
995 GNUNET_CONTAINER_DLL_remove (entry->head_notify,
998 gh->notify_waiting = 0;
1002 GNUNET_assert (! entry->in_lru);
1003 if (! entry->in_pool)
1004 GNUNET_CONTAINER_DLL_remove (head_not_pooled,
1009 if (GNUNET_YES == GNUNET_CONTAINER_multihashmap32_contains (map,
1012 if (GNUNET_CONTAINER_multihashmap32_size (map) == max_size)
1014 if (NULL == head_lru)
1016 destroy_pooled_connection (head_lru);
1018 GNUNET_assert (GNUNET_OK ==
1019 GNUNET_CONTAINER_multihashmap32_put (map,
1022 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
1023 entry->in_pool = GNUNET_YES;
1027 GNUNET_assert (0 < entry->demand);
1029 if (0 != entry->demand)
1036 destroy_pooled_connection (entry);