http://git-wip-us.apache.org/repos/asf/celix/blob/2a670f26/pubsub/pubsub_admin_udp_mc/src/psa_activator.c ---------------------------------------------------------------------- diff --git a/pubsub/pubsub_admin_udp_mc/src/psa_activator.c b/pubsub/pubsub_admin_udp_mc/src/psa_activator.c new file mode 100644 index 0000000..cd4ee07 --- /dev/null +++ b/pubsub/pubsub_admin_udp_mc/src/psa_activator.c @@ -0,0 +1,141 @@ +/** + *Licensed to the Apache Software Foundation (ASF) under one + *or more contributor license agreements. See the NOTICE file + *distributed with this work for additional information + *regarding copyright ownership. The ASF licenses this file + *to you under the Apache License, Version 2.0 (the + *"License"); you may not use this file except in compliance + *with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + *Unless required by applicable law or agreed to in writing, + *software distributed under the License is distributed on an + *"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + *specific language governing permissions and limitations + *under the License. + */ +/* + * psa_activator.c + * + * \date Sep 30, 2011 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#include <stdlib.h> + +#include "bundle_activator.h" +#include "service_registration.h" +#include "service_tracker.h" + +#include "pubsub_admin_impl.h" + +struct activator { + pubsub_admin_pt admin; + pubsub_admin_service_pt adminService; + service_registration_pt registration; + service_tracker_pt serializerTracker; +}; + +celix_status_t bundleActivator_create(bundle_context_pt context, void **userData) { + celix_status_t status = CELIX_SUCCESS; + struct activator *activator; + + activator = calloc(1, sizeof(*activator)); + if (!activator) { + status = CELIX_ENOMEM; + } + else{ + *userData = activator; + + status = pubsubAdmin_create(context, &(activator->admin)); + + if(status == CELIX_SUCCESS){ + service_tracker_customizer_pt customizer = NULL; + status = serviceTrackerCustomizer_create(activator->admin, + NULL, + pubsubAdmin_serializerAdded, + NULL, + pubsubAdmin_serializerRemoved, + &customizer); + if(status == CELIX_SUCCESS){ + status = serviceTracker_create(context, PUBSUB_SERIALIZER_SERVICE, customizer, &(activator->serializerTracker)); + if(status != CELIX_SUCCESS){ + serviceTrackerCustomizer_destroy(customizer); + pubsubAdmin_destroy(activator->admin); + } + } + else{ + pubsubAdmin_destroy(activator->admin); + } + } + } + + return status; +} + +celix_status_t bundleActivator_start(void * userData, bundle_context_pt context) { + celix_status_t status = CELIX_SUCCESS; + struct activator *activator = userData; + pubsub_admin_service_pt pubsubAdminSvc = calloc(1, sizeof(*pubsubAdminSvc)); + + if (!pubsubAdminSvc) { + status = CELIX_ENOMEM; + } + else{ + pubsubAdminSvc->admin = activator->admin; + + pubsubAdminSvc->addPublication = pubsubAdmin_addPublication; + pubsubAdminSvc->removePublication = pubsubAdmin_removePublication; + + pubsubAdminSvc->addSubscription = pubsubAdmin_addSubscription; + pubsubAdminSvc->removeSubscription = pubsubAdmin_removeSubscription; + + pubsubAdminSvc->closeAllPublications = pubsubAdmin_closeAllPublications; + pubsubAdminSvc->closeAllSubscriptions = pubsubAdmin_closeAllSubscriptions; + + pubsubAdminSvc->matchEndpoint = pubsubAdmin_matchEndpoint; + + activator->adminService = pubsubAdminSvc; + + status = bundleContext_registerService(context, PUBSUB_ADMIN_SERVICE, pubsubAdminSvc, NULL, &activator->registration); + + status += serviceTracker_open(activator->serializerTracker); + + } + + + return status; +} + +celix_status_t bundleActivator_stop(void * userData, bundle_context_pt context) { + celix_status_t status = CELIX_SUCCESS; + struct activator *activator = userData; + + status += serviceTracker_close(activator->serializerTracker); + status += serviceRegistration_unregister(activator->registration); + + activator->registration = NULL; + + free(activator->adminService); + activator->adminService = NULL; + + return status; +} + +celix_status_t bundleActivator_destroy(void * userData, bundle_context_pt context) { + celix_status_t status = CELIX_SUCCESS; + struct activator *activator = userData; + + serviceTracker_destroy(activator->serializerTracker); + pubsubAdmin_destroy(activator->admin); + activator->admin = NULL; + + free(activator); + + return status; +} + +
http://git-wip-us.apache.org/repos/asf/celix/blob/2a670f26/pubsub/pubsub_admin_udp_mc/src/pubsub_admin_impl.c ---------------------------------------------------------------------- diff --git a/pubsub/pubsub_admin_udp_mc/src/pubsub_admin_impl.c b/pubsub/pubsub_admin_udp_mc/src/pubsub_admin_impl.c new file mode 100644 index 0000000..1fbdb08 --- /dev/null +++ b/pubsub/pubsub_admin_udp_mc/src/pubsub_admin_impl.c @@ -0,0 +1,1039 @@ +/** + *Licensed to the Apache Software Foundation (ASF) under one + *or more contributor license agreements. See the NOTICE file + *distributed with this work for additional information + *regarding copyright ownership. The ASF licenses this file + *to you under the Apache License, Version 2.0 (the + *"License"); you may not use this file except in compliance + *with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + *Unless required by applicable law or agreed to in writing, + *software distributed under the License is distributed on an + *"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + *specific language governing permissions and limitations + *under the License. + */ +/* + * pubsub_admin_impl.c + * + * \date Sep 30, 2011 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#include <stdio.h> +#include <stdlib.h> + +#ifndef ANDROID +#include <ifaddrs.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> + +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <netdb.h> + +#include "constants.h" +#include "utils.h" +#include "hash_map.h" +#include "array_list.h" +#include "bundle_context.h" +#include "bundle.h" +#include "service_reference.h" +#include "service_registration.h" +#include "log_helper.h" +#include "log_service.h" +#include "celix_threads.h" +#include "service_factory.h" + +#include "pubsub_admin_impl.h" +#include "topic_subscription.h" +#include "topic_publication.h" +#include "pubsub_endpoint.h" +#include "subscriber.h" +#include "pubsub_admin_match.h" + +static const char *DEFAULT_MC_IP = "224.100.1.1"; +static char *DEFAULT_MC_PREFIX = "224.100"; + +static celix_status_t pubsubAdmin_getIpAddress(const char* interface, char** ip); +static celix_status_t pubsubAdmin_addSubscriptionToPendingList(pubsub_admin_pt admin,pubsub_endpoint_pt subEP); +static celix_status_t pubsubAdmin_addAnySubscription(pubsub_admin_pt admin,pubsub_endpoint_pt subEP); + +static celix_status_t pubsubAdmin_getBestSerializer(pubsub_admin_pt admin,pubsub_endpoint_pt ep, pubsub_serializer_service_t **serSvc); +static void connectTopicPubSubToSerializer(pubsub_admin_pt admin,pubsub_serializer_service_t *serializer,void *topicPubSub,bool isPublication); +static void disconnectTopicPubSubFromSerializer(pubsub_admin_pt admin,void *topicPubSub,bool isPublication); + +celix_status_t pubsubAdmin_create(bundle_context_pt context, pubsub_admin_pt *admin) { + celix_status_t status = CELIX_SUCCESS; + + *admin = calloc(1, sizeof(**admin)); + + if (!*admin) { + return CELIX_ENOMEM; + } + + char *mc_ip = NULL; + char *if_ip = NULL; + int sendSocket = -1; + + if (logHelper_create(context, &(*admin)->loghelper) == CELIX_SUCCESS) { + logHelper_start((*admin)->loghelper); + } + const char *mc_ip_prop = NULL; + bundleContext_getProperty(context,PSA_IP , &mc_ip_prop); + if(mc_ip_prop) { + mc_ip = strdup(mc_ip_prop); + } + +#ifndef ANDROID + if (mc_ip == NULL) { + const char *mc_prefix = NULL; + const char *interface = NULL; + int b0 = 0, b1 = 0, b2 = 0, b3 = 0; + bundleContext_getProperty(context,PSA_MULTICAST_IP_PREFIX , &mc_prefix); + if(mc_prefix == NULL) { + mc_prefix = DEFAULT_MC_PREFIX; + } + + bundleContext_getProperty(context, PSA_ITF, &interface); + if (pubsubAdmin_getIpAddress(interface, &if_ip) != CELIX_SUCCESS) { + logHelper_log((*admin)->loghelper, OSGI_LOGSERVICE_WARNING, "PSA_UDP_MC: Could not retrieve IP address for interface %s", interface); + } + + printf("IP Detected : %s\n", if_ip); + if(if_ip && sscanf(if_ip, "%i.%i.%i.%i", &b0, &b1, &b2, &b3) != 4) { + logHelper_log((*admin)->loghelper, OSGI_LOGSERVICE_WARNING, "PSA_UDP_MC: Could not parse IP address %s", if_ip); + b2 = 1; + b3 = 1; + } + + asprintf(&mc_ip, "%s.%d.%d",mc_prefix, b2, b3); + + sendSocket = socket(AF_INET, SOCK_DGRAM, 0); + if(sendSocket == -1) { + perror("pubsubAdmin_create:socket"); + status = CELIX_SERVICE_EXCEPTION; + } + + if(status == CELIX_SUCCESS){ + char loop = 1; + if(setsockopt(sendSocket, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, sizeof(loop)) != 0) { + perror("pubsubAdmin_create:setsockopt(IP_MULTICAST_LOOP)"); + status = CELIX_SERVICE_EXCEPTION; + } + } + + if(status == CELIX_SUCCESS){ + struct in_addr multicast_interface; + inet_aton(if_ip, &multicast_interface); + if(setsockopt(sendSocket, IPPROTO_IP, IP_MULTICAST_IF, &multicast_interface, sizeof(multicast_interface)) != 0) { + perror("pubsubAdmin_create:setsockopt(IP_MULTICAST_IF)"); + status = CELIX_SERVICE_EXCEPTION; + } + } + + } + + + if(status != CELIX_SUCCESS){ + logHelper_stop((*admin)->loghelper); + logHelper_destroy(&((*admin)->loghelper)); + if(sendSocket >=0){ + close(sendSocket); + } + if(if_ip != NULL){ + free(if_ip); + } + if(mc_ip != NULL){ + free(mc_ip); + } + return status; + } + else{ + (*admin)->sendSocket = sendSocket; + } + +#endif + + (*admin)->bundle_context= context; + (*admin)->localPublications = hashMap_create(utils_stringHash, NULL, utils_stringEquals, NULL); + (*admin)->subscriptions = hashMap_create(utils_stringHash, NULL, utils_stringEquals, NULL); + (*admin)->pendingSubscriptions = hashMap_create(utils_stringHash, NULL, utils_stringEquals, NULL); + (*admin)->externalPublications = hashMap_create(utils_stringHash, NULL, utils_stringEquals, NULL); + (*admin)->topicSubscriptionsPerSerializer = hashMap_create(NULL, NULL, NULL, NULL); + (*admin)->topicPublicationsPerSerializer = hashMap_create(NULL, NULL, NULL, NULL); + arrayList_create(&((*admin)->noSerializerSubscriptions)); + arrayList_create(&((*admin)->noSerializerPublications)); + arrayList_create(&((*admin)->serializerList)); + + celixThreadMutex_create(&(*admin)->localPublicationsLock, NULL); + celixThreadMutex_create(&(*admin)->subscriptionsLock, NULL); + celixThreadMutex_create(&(*admin)->externalPublicationsLock, NULL); + celixThreadMutex_create(&(*admin)->serializerListLock, NULL); + celixThreadMutex_create(&(*admin)->usedSerializersLock, NULL); + + celixThreadMutexAttr_create(&(*admin)->noSerializerPendingsAttr); + celixThreadMutexAttr_settype(&(*admin)->noSerializerPendingsAttr, CELIX_THREAD_MUTEX_RECURSIVE); + celixThreadMutex_create(&(*admin)->noSerializerPendingsLock, &(*admin)->noSerializerPendingsAttr); + + celixThreadMutexAttr_create(&(*admin)->pendingSubscriptionsAttr); + celixThreadMutexAttr_settype(&(*admin)->pendingSubscriptionsAttr, CELIX_THREAD_MUTEX_RECURSIVE); + celixThreadMutex_create(&(*admin)->pendingSubscriptionsLock, &(*admin)->pendingSubscriptionsAttr); + + if (if_ip != NULL) { + logHelper_log((*admin)->loghelper, OSGI_LOGSERVICE_INFO, "PSA_UDP_MC: Using %s as interface for multicast communication", if_ip); + (*admin)->ifIpAddress = if_ip; + } else { + (*admin)->ifIpAddress = strdup("127.0.0.1"); + } + + if (mc_ip != NULL) { + logHelper_log((*admin)->loghelper, OSGI_LOGSERVICE_INFO, "PSA_UDP_MC: Using %s for service annunciation", mc_ip); + (*admin)->mcIpAddress = mc_ip; + } + else { + logHelper_log((*admin)->loghelper, OSGI_LOGSERVICE_WARNING, "PSA_UDP_MC: No IP address for service annunciation set. Using %s", DEFAULT_MC_IP); + (*admin)->mcIpAddress = strdup(DEFAULT_MC_IP); + } + + return status; +} + + +celix_status_t pubsubAdmin_destroy(pubsub_admin_pt admin) +{ + celix_status_t status = CELIX_SUCCESS; + + free(admin->mcIpAddress); + free(admin->ifIpAddress); + + celixThreadMutex_lock(&admin->pendingSubscriptionsLock); + hash_map_iterator_pt iter = hashMapIterator_create(admin->pendingSubscriptions); + while(hashMapIterator_hasNext(iter)){ + hash_map_entry_pt entry = hashMapIterator_nextEntry(iter); + free((char*)hashMapEntry_getKey(entry)); + arrayList_destroy((array_list_pt)hashMapEntry_getValue(entry)); + } + hashMapIterator_destroy(iter); + hashMap_destroy(admin->pendingSubscriptions,false,false); + celixThreadMutex_unlock(&admin->pendingSubscriptionsLock); + + celixThreadMutex_lock(&admin->subscriptionsLock); + hashMap_destroy(admin->subscriptions,false,false); + celixThreadMutex_unlock(&admin->subscriptionsLock); + + celixThreadMutex_lock(&admin->localPublicationsLock); + hashMap_destroy(admin->localPublications,true,false); + celixThreadMutex_unlock(&admin->localPublicationsLock); + + celixThreadMutex_lock(&admin->externalPublicationsLock); + iter = hashMapIterator_create(admin->externalPublications); + while(hashMapIterator_hasNext(iter)){ + hash_map_entry_pt entry = hashMapIterator_nextEntry(iter); + free((char*)hashMapEntry_getKey(entry)); + arrayList_destroy((array_list_pt)hashMapEntry_getValue(entry)); + } + hashMapIterator_destroy(iter); + hashMap_destroy(admin->externalPublications,false,false); + celixThreadMutex_unlock(&admin->externalPublicationsLock); + + celixThreadMutex_lock(&admin->serializerListLock); + arrayList_destroy(admin->serializerList); + celixThreadMutex_unlock(&admin->serializerListLock); + + celixThreadMutex_lock(&admin->noSerializerPendingsLock); + arrayList_destroy(admin->noSerializerSubscriptions); + arrayList_destroy(admin->noSerializerPublications); + celixThreadMutex_unlock(&admin->noSerializerPendingsLock); + + celixThreadMutex_lock(&admin->usedSerializersLock); + + iter = hashMapIterator_create(admin->topicSubscriptionsPerSerializer); + while(hashMapIterator_hasNext(iter)){ + arrayList_destroy((array_list_pt)hashMapIterator_nextValue(iter)); + } + hashMapIterator_destroy(iter); + hashMap_destroy(admin->topicSubscriptionsPerSerializer,false,false); + + iter = hashMapIterator_create(admin->topicPublicationsPerSerializer); + while(hashMapIterator_hasNext(iter)){ + arrayList_destroy((array_list_pt)hashMapIterator_nextValue(iter)); + } + hashMapIterator_destroy(iter); + hashMap_destroy(admin->topicPublicationsPerSerializer,false,false); + + celixThreadMutex_unlock(&admin->usedSerializersLock); + + celixThreadMutex_destroy(&admin->usedSerializersLock); + celixThreadMutex_destroy(&admin->serializerListLock); + + celixThreadMutexAttr_destroy(&admin->noSerializerPendingsAttr); + celixThreadMutex_destroy(&admin->noSerializerPendingsLock); + + celixThreadMutex_destroy(&admin->pendingSubscriptionsLock); + celixThreadMutexAttr_destroy(&admin->pendingSubscriptionsAttr); + + celixThreadMutex_destroy(&admin->subscriptionsLock); + celixThreadMutex_destroy(&admin->localPublicationsLock); + celixThreadMutex_destroy(&admin->externalPublicationsLock); + + logHelper_stop(admin->loghelper); + + logHelper_destroy(&admin->loghelper); + + free(admin); + + return status; +} + +static celix_status_t pubsubAdmin_addAnySubscription(pubsub_admin_pt admin,pubsub_endpoint_pt subEP){ + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&admin->subscriptionsLock); + + topic_subscription_pt any_sub = hashMap_get(admin->subscriptions,PUBSUB_ANY_SUB_TOPIC); + + if(any_sub==NULL){ + + int i; + pubsub_serializer_service_t *best_serializer = NULL; + if( (status=pubsubAdmin_getBestSerializer(admin, subEP, &best_serializer)) == CELIX_SUCCESS){ + status = pubsub_topicSubscriptionCreate(admin->bundle_context, admin->ifIpAddress, PUBSUB_SUBSCRIBER_SCOPE_DEFAULT, PUBSUB_ANY_SUB_TOPIC, best_serializer, &any_sub); + } + else{ + printf("PSA_UDP_MC: Cannot find a serializer for subscribing topic %s. Adding it to pending list.\n",subEP->topic); + celixThreadMutex_lock(&admin->noSerializerPendingsLock); + arrayList_add(admin->noSerializerSubscriptions,subEP); + celixThreadMutex_unlock(&admin->noSerializerPendingsLock); + } + + if (status == CELIX_SUCCESS){ + + /* Connect all internal publishers */ + celixThreadMutex_lock(&admin->localPublicationsLock); + hash_map_iterator_pt lp_iter =hashMapIterator_create(admin->localPublications); + while(hashMapIterator_hasNext(lp_iter)){ + service_factory_pt factory = (service_factory_pt)hashMapIterator_nextValue(lp_iter); + topic_publication_pt topic_pubs = (topic_publication_pt)factory->handle; + array_list_pt topic_publishers = pubsub_topicPublicationGetPublisherList(topic_pubs); + + if(topic_publishers!=NULL){ + for(i=0;i<arrayList_size(topic_publishers);i++){ + pubsub_endpoint_pt pubEP = (pubsub_endpoint_pt)arrayList_get(topic_publishers,i); + if(pubEP->endpoint !=NULL){ + status += pubsub_topicSubscriptionConnectPublisher(any_sub,pubEP->endpoint); + } + } + arrayList_destroy(topic_publishers); + } + } + hashMapIterator_destroy(lp_iter); + celixThreadMutex_unlock(&admin->localPublicationsLock); + + /* Connect also all external publishers */ + celixThreadMutex_lock(&admin->externalPublicationsLock); + hash_map_iterator_pt extp_iter =hashMapIterator_create(admin->externalPublications); + while(hashMapIterator_hasNext(extp_iter)){ + array_list_pt ext_pub_list = (array_list_pt)hashMapIterator_nextValue(extp_iter); + if(ext_pub_list!=NULL){ + for(i=0;i<arrayList_size(ext_pub_list);i++){ + pubsub_endpoint_pt pubEP = (pubsub_endpoint_pt)arrayList_get(ext_pub_list,i); + if(pubEP->endpoint !=NULL){ + status += pubsub_topicSubscriptionConnectPublisher(any_sub,pubEP->endpoint); + } + } + } + } + hashMapIterator_destroy(extp_iter); + celixThreadMutex_unlock(&admin->externalPublicationsLock); + + + pubsub_topicSubscriptionAddSubscriber(any_sub,subEP); + + status += pubsub_topicSubscriptionStart(any_sub); + + } + + if (status == CELIX_SUCCESS){ + hashMap_put(admin->subscriptions,strdup(PUBSUB_ANY_SUB_TOPIC),any_sub); + connectTopicPubSubToSerializer(admin, best_serializer, any_sub, false); + } + + } + + celixThreadMutex_unlock(&admin->subscriptionsLock); + + return status; +} + +celix_status_t pubsubAdmin_addSubscription(pubsub_admin_pt admin,pubsub_endpoint_pt subEP){ + celix_status_t status = CELIX_SUCCESS; + + printf("PSA_UDP_MC: Received subscription [FWUUID=%s bundleID=%ld scope=%s, topic=%s]\n",subEP->frameworkUUID,subEP->serviceID,subEP->scope,subEP->topic); + + if(strcmp(subEP->topic,PUBSUB_ANY_SUB_TOPIC)==0){ + return pubsubAdmin_addAnySubscription(admin,subEP); + } + + /* Check if we already know some publisher about this topic, otherwise let's put the subscription in the pending hashmap */ + celixThreadMutex_lock(&admin->pendingSubscriptionsLock); + celixThreadMutex_lock(&admin->subscriptionsLock); + celixThreadMutex_lock(&admin->localPublicationsLock); + celixThreadMutex_lock(&admin->externalPublicationsLock); + + char* scope_topic = createScopeTopicKey(subEP->scope,subEP->topic); + + service_factory_pt factory = (service_factory_pt)hashMap_get(admin->localPublications,scope_topic); + array_list_pt ext_pub_list = (array_list_pt)hashMap_get(admin->externalPublications,scope_topic); + + if(factory==NULL && ext_pub_list==NULL){ //No (local or external) publishers yet for this topic + pubsubAdmin_addSubscriptionToPendingList(admin,subEP); + } + else{ + int i; + topic_subscription_pt subscription = hashMap_get(admin->subscriptions, scope_topic); + + if(subscription == NULL) { + pubsub_serializer_service_t *best_serializer = NULL; + if( (status=pubsubAdmin_getBestSerializer(admin, subEP, &best_serializer)) == CELIX_SUCCESS){ + status += pubsub_topicSubscriptionCreate(admin->bundle_context,admin->ifIpAddress, subEP->scope, subEP->topic, best_serializer, &subscription); + } + else{ + printf("PSA_UDP_MC: Cannot find a serializer for subscribing topic %s. Adding it to pending list.\n",subEP->topic); + celixThreadMutex_lock(&admin->noSerializerPendingsLock); + arrayList_add(admin->noSerializerSubscriptions,subEP); + celixThreadMutex_unlock(&admin->noSerializerPendingsLock); + } + + if (status==CELIX_SUCCESS){ + + /* Try to connect internal publishers */ + if(factory!=NULL){ + topic_publication_pt topic_pubs = (topic_publication_pt)factory->handle; + array_list_pt topic_publishers = pubsub_topicPublicationGetPublisherList(topic_pubs); + + if(topic_publishers!=NULL){ + for(i=0;i<arrayList_size(topic_publishers);i++){ + pubsub_endpoint_pt pubEP = (pubsub_endpoint_pt)arrayList_get(topic_publishers,i); + if(pubEP->endpoint !=NULL){ + status += pubsub_topicSubscriptionConnectPublisher(subscription,pubEP->endpoint); + } + } + arrayList_destroy(topic_publishers); + } + + } + + /* Look also for external publishers */ + if(ext_pub_list!=NULL){ + for(i=0;i<arrayList_size(ext_pub_list);i++){ + pubsub_endpoint_pt pubEP = (pubsub_endpoint_pt)arrayList_get(ext_pub_list,i); + if(pubEP->endpoint !=NULL){ + status += pubsub_topicSubscriptionConnectPublisher(subscription,pubEP->endpoint); + } + } + } + + pubsub_topicSubscriptionAddSubscriber(subscription,subEP); + + status += pubsub_topicSubscriptionStart(subscription); + + } + + if(status==CELIX_SUCCESS){ + + hashMap_put(admin->subscriptions,strdup(scope_topic),subscription); + + connectTopicPubSubToSerializer(admin, best_serializer, subscription, false); + } + } + + if (status == CELIX_SUCCESS){ + pubsub_topicIncreaseNrSubscribers(subscription); + } + } + + free(scope_topic); + celixThreadMutex_unlock(&admin->externalPublicationsLock); + celixThreadMutex_unlock(&admin->localPublicationsLock); + celixThreadMutex_unlock(&admin->subscriptionsLock); + celixThreadMutex_unlock(&admin->pendingSubscriptionsLock); + + return status; + +} + +celix_status_t pubsubAdmin_removeSubscription(pubsub_admin_pt admin,pubsub_endpoint_pt subEP){ + celix_status_t status = CELIX_SUCCESS; + + printf("PSA_UDP_MC: Removing subscription [FWUUID=%s bundleID=%ld scope=%s, topic=%s]\n",subEP->frameworkUUID,subEP->serviceID,subEP->scope, subEP->topic); + + char* scope_topic = createScopeTopicKey(subEP->scope, subEP->topic); + + celixThreadMutex_lock(&admin->subscriptionsLock); + topic_subscription_pt sub = (topic_subscription_pt)hashMap_get(admin->subscriptions,scope_topic); + if(sub!=NULL){ + pubsub_topicDecreaseNrSubscribers(sub); + if(pubsub_topicGetNrSubscribers(sub) == 0) { + status = pubsub_topicSubscriptionRemoveSubscriber(sub,subEP); + } + } + celixThreadMutex_unlock(&admin->subscriptionsLock); + + if(sub==NULL){ + /* Maybe the endpoint was pending */ + celixThreadMutex_lock(&admin->noSerializerPendingsLock); + if(!arrayList_removeElement(admin->noSerializerSubscriptions, subEP)){ + status = CELIX_ILLEGAL_STATE; + } + celixThreadMutex_unlock(&admin->noSerializerPendingsLock); + } + + free(scope_topic); + + + + return status; + +} + +celix_status_t pubsubAdmin_addPublication(pubsub_admin_pt admin,pubsub_endpoint_pt pubEP){ + celix_status_t status = CELIX_SUCCESS; + + printf("PSA_UDP_MC: Received publication [FWUUID=%s bundleID=%ld scope=%s, topic=%s]\n",pubEP->frameworkUUID,pubEP->serviceID,pubEP->scope, pubEP->topic); + + const char* fwUUID = NULL; + + bundleContext_getProperty(admin->bundle_context,OSGI_FRAMEWORK_FRAMEWORK_UUID,&fwUUID); + if(fwUUID==NULL){ + printf("PSA_UDP_MC: Cannot retrieve fwUUID.\n"); + return CELIX_INVALID_BUNDLE_CONTEXT; + } + char* scope_topic = createScopeTopicKey(pubEP->scope, pubEP->topic); + + if ((strcmp(pubEP->frameworkUUID, fwUUID) == 0) && (pubEP->endpoint == NULL)) { + + celixThreadMutex_lock(&admin->localPublicationsLock); + + service_factory_pt factory = (service_factory_pt) hashMap_get(admin->localPublications, scope_topic); + + if (factory == NULL) { + topic_publication_pt pub = NULL; + pubsub_serializer_service_t *best_serializer = NULL; + if( (status=pubsubAdmin_getBestSerializer(admin, pubEP, &best_serializer)) == CELIX_SUCCESS){ + status = pubsub_topicPublicationCreate(admin->sendSocket, pubEP, best_serializer, admin->mcIpAddress, &pub); + } + else{ + printf("PSA_UDP_MC: Cannot find a serializer for publishing topic %s. Adding it to pending list.\n", pubEP->topic); + celixThreadMutex_lock(&admin->noSerializerPendingsLock); + arrayList_add(admin->noSerializerPublications,pubEP); + celixThreadMutex_unlock(&admin->noSerializerPendingsLock); + } + + if (status == CELIX_SUCCESS) { + status = pubsub_topicPublicationStart(admin->bundle_context, pub, &factory); + if (status == CELIX_SUCCESS && factory != NULL) { + hashMap_put(admin->localPublications, strdup(scope_topic), factory); + connectTopicPubSubToSerializer(admin, best_serializer, pub, true); + } + } else { + printf("PSA_UDP_MC: Cannot create a topicPublication for scope=%s, topic=%s (bundle %ld).\n", pubEP->scope, pubEP->topic, pubEP->serviceID); + } + } else { + //just add the new EP to the list + topic_publication_pt pub = (topic_publication_pt) factory->handle; + pubsub_topicPublicationAddPublisherEP(pub, pubEP); + } + + celixThreadMutex_unlock(&admin->localPublicationsLock); + } + else{ + + celixThreadMutex_lock(&admin->externalPublicationsLock); + array_list_pt ext_pub_list = (array_list_pt) hashMap_get(admin->externalPublications, scope_topic); + if (ext_pub_list == NULL) { + arrayList_create(&ext_pub_list); + hashMap_put(admin->externalPublications, strdup(scope_topic), ext_pub_list); + } + + arrayList_add(ext_pub_list, pubEP); + + celixThreadMutex_unlock(&admin->externalPublicationsLock); + } + + /* Re-evaluate the pending subscriptions */ + celixThreadMutex_lock(&admin->pendingSubscriptionsLock); + + hash_map_entry_pt pendingSub = hashMap_getEntry(admin->pendingSubscriptions, scope_topic); + if (pendingSub != NULL) { //There were pending subscription for the just published topic. Let's connect them. + char* topic = (char*) hashMapEntry_getKey(pendingSub); + array_list_pt pendingSubList = (array_list_pt) hashMapEntry_getValue(pendingSub); + int i; + for (i = 0; i < arrayList_size(pendingSubList); i++) { + pubsub_endpoint_pt subEP = (pubsub_endpoint_pt) arrayList_get(pendingSubList, i); + pubsubAdmin_addSubscription(admin, subEP); + } + hashMap_remove(admin->pendingSubscriptions, scope_topic); + arrayList_clear(pendingSubList); + arrayList_destroy(pendingSubList); + free(topic); + } + + celixThreadMutex_unlock(&admin->pendingSubscriptionsLock); + + /* Connect the new publisher to the subscription for his topic, if there is any */ + celixThreadMutex_lock(&admin->subscriptionsLock); + + topic_subscription_pt sub = (topic_subscription_pt) hashMap_get(admin->subscriptions, scope_topic); + if (sub != NULL && pubEP->endpoint != NULL) { + pubsub_topicSubscriptionAddConnectPublisherToPendingList(sub, pubEP->endpoint); + } + + /* And check also for ANY subscription */ + topic_subscription_pt any_sub = (topic_subscription_pt) hashMap_get(admin->subscriptions, PUBSUB_ANY_SUB_TOPIC); + if (any_sub != NULL && pubEP->endpoint != NULL) { + pubsub_topicSubscriptionAddConnectPublisherToPendingList(any_sub, pubEP->endpoint); + } + + free(scope_topic); + + celixThreadMutex_unlock(&admin->subscriptionsLock); + + return status; + +} + +celix_status_t pubsubAdmin_removePublication(pubsub_admin_pt admin,pubsub_endpoint_pt pubEP){ + celix_status_t status = CELIX_SUCCESS; + int count = 0; + + printf("PSA_UDP_MC: Removing publication [FWUUID=%s bundleID=%ld scope=%s, topic=%s]\n",pubEP->frameworkUUID,pubEP->serviceID,pubEP->scope, pubEP->topic); + + const char* fwUUID = NULL; + + bundleContext_getProperty(admin->bundle_context,OSGI_FRAMEWORK_FRAMEWORK_UUID,&fwUUID); + if(fwUUID==NULL){ + printf("PSA_UDP_MC: Cannot retrieve fwUUID.\n"); + return CELIX_INVALID_BUNDLE_CONTEXT; + } + char *scope_topic = createScopeTopicKey(pubEP->scope, pubEP->topic); + + if(strcmp(pubEP->frameworkUUID,fwUUID)==0){ + + celixThreadMutex_lock(&admin->localPublicationsLock); + service_factory_pt factory = (service_factory_pt)hashMap_get(admin->localPublications,scope_topic); + if(factory!=NULL){ + topic_publication_pt pub = (topic_publication_pt)factory->handle; + pubsub_topicPublicationRemovePublisherEP(pub,pubEP); + } + celixThreadMutex_unlock(&admin->localPublicationsLock); + + if(factory==NULL){ + /* Maybe the endpoint was pending */ + celixThreadMutex_lock(&admin->noSerializerPendingsLock); + if(!arrayList_removeElement(admin->noSerializerPublications, pubEP)){ + status = CELIX_ILLEGAL_STATE; + } + celixThreadMutex_unlock(&admin->noSerializerPendingsLock); + } + + } + else{ + + celixThreadMutex_lock(&admin->externalPublicationsLock); + array_list_pt ext_pub_list = (array_list_pt)hashMap_get(admin->externalPublications,scope_topic); + if(ext_pub_list!=NULL){ + int i; + bool found = false; + for(i=0;!found && i<arrayList_size(ext_pub_list);i++){ + pubsub_endpoint_pt p = (pubsub_endpoint_pt)arrayList_get(ext_pub_list,i); + found = pubsubEndpoint_equals(pubEP,p); + if (found){ + arrayList_remove(ext_pub_list,i); + } + } + // Check if there are more publishers on the same endpoint (happens when 1 celix-instance with multiple bundles publish in same topic) + for(i=0; i<arrayList_size(ext_pub_list);i++) { + pubsub_endpoint_pt p = (pubsub_endpoint_pt)arrayList_get(ext_pub_list,i); + if (strcmp(pubEP->endpoint,p->endpoint) == 0) { + count++; + } + } + + if(arrayList_size(ext_pub_list)==0){ + hash_map_entry_pt entry = hashMap_getEntry(admin->externalPublications,scope_topic); + char* topic = (char*)hashMapEntry_getKey(entry); + array_list_pt list = (array_list_pt)hashMapEntry_getValue(entry); + hashMap_remove(admin->externalPublications,topic); + arrayList_destroy(list); + free(topic); + } + } + + celixThreadMutex_unlock(&admin->externalPublicationsLock); + } + + /* Check if this publisher was connected to one of our subscribers*/ + celixThreadMutex_lock(&admin->subscriptionsLock); + + topic_subscription_pt sub = (topic_subscription_pt)hashMap_get(admin->subscriptions,scope_topic); + if(sub!=NULL && pubEP->endpoint!=NULL && count == 0){ + pubsub_topicSubscriptionAddDisconnectPublisherToPendingList(sub,pubEP->endpoint); + } + + /* And check also for ANY subscription */ + topic_subscription_pt any_sub = (topic_subscription_pt)hashMap_get(admin->subscriptions,PUBSUB_ANY_SUB_TOPIC); + if(any_sub!=NULL && pubEP->endpoint!=NULL && count == 0){ + pubsub_topicSubscriptionAddDisconnectPublisherToPendingList(any_sub,pubEP->endpoint); + } + + free(scope_topic); + celixThreadMutex_unlock(&admin->subscriptionsLock); + + return status; + +} + +celix_status_t pubsubAdmin_closeAllPublications(pubsub_admin_pt admin,char *scope, char* topic){ + celix_status_t status = CELIX_SUCCESS; + + printf("PSA_UDP_MC: Closing all publications for scope=%s,topic=%s\n", scope, topic); + + celixThreadMutex_lock(&admin->localPublicationsLock); + char* scope_topic =createScopeTopicKey(scope, topic); + hash_map_entry_pt pubsvc_entry = (hash_map_entry_pt)hashMap_getEntry(admin->localPublications,scope_topic); + if(pubsvc_entry!=NULL){ + char* key = (char*)hashMapEntry_getKey(pubsvc_entry); + service_factory_pt factory= (service_factory_pt)hashMapEntry_getValue(pubsvc_entry); + topic_publication_pt pub = (topic_publication_pt)factory->handle; + status += pubsub_topicPublicationStop(pub); + disconnectTopicPubSubFromSerializer(admin, pub, true); + status += pubsub_topicPublicationDestroy(pub); + hashMap_remove(admin->localPublications,scope_topic); + free(key); + free(factory); + } + free(scope_topic); + celixThreadMutex_unlock(&admin->localPublicationsLock); + + return status; + +} + +celix_status_t pubsubAdmin_closeAllSubscriptions(pubsub_admin_pt admin,char *scope, char* topic){ + celix_status_t status = CELIX_SUCCESS; + + printf("PSA_UDP_MC: Closing all subscriptions\n"); + + celixThreadMutex_lock(&admin->subscriptionsLock); + char* scope_topic =createScopeTopicKey(scope, topic); + hash_map_entry_pt sub_entry = (hash_map_entry_pt)hashMap_getEntry(admin->subscriptions,scope_topic); + if(sub_entry!=NULL){ + char* topic = (char*)hashMapEntry_getKey(sub_entry); + + topic_subscription_pt ts = (topic_subscription_pt)hashMapEntry_getValue(sub_entry); + status += pubsub_topicSubscriptionStop(ts); + disconnectTopicPubSubFromSerializer(admin, ts, false); + status += pubsub_topicSubscriptionDestroy(ts); + hashMap_remove(admin->subscriptions,topic); + free(topic); + + } + free(scope_topic); + celixThreadMutex_unlock(&admin->subscriptionsLock); + + return status; + +} + + +#ifndef ANDROID +static celix_status_t pubsubAdmin_getIpAddress(const char* interface, char** ip) { + celix_status_t status = CELIX_BUNDLE_EXCEPTION; + + struct ifaddrs *ifaddr, *ifa; + char host[NI_MAXHOST]; + + if (getifaddrs(&ifaddr) != -1) + { + for (ifa = ifaddr; ifa != NULL && status != CELIX_SUCCESS; ifa = ifa->ifa_next) + { + if (ifa->ifa_addr == NULL) + continue; + + if ((getnameinfo(ifa->ifa_addr,sizeof(struct sockaddr_in), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) { + if (interface == NULL) { + *ip = strdup(host); + status = CELIX_SUCCESS; + } + else if (strcmp(ifa->ifa_name, interface) == 0) { + *ip = strdup(host); + status = CELIX_SUCCESS; + } + } + } + + freeifaddrs(ifaddr); + } + + return status; +} +#endif + +static celix_status_t pubsubAdmin_addSubscriptionToPendingList(pubsub_admin_pt admin,pubsub_endpoint_pt subEP){ + celix_status_t status = CELIX_SUCCESS; + + char* scope_topic =createScopeTopicKey(subEP->scope, subEP->topic); + array_list_pt pendingListPerTopic = hashMap_get(admin->pendingSubscriptions,scope_topic); + if(pendingListPerTopic==NULL){ + arrayList_create(&pendingListPerTopic); + hashMap_put(admin->pendingSubscriptions,strdup(scope_topic),pendingListPerTopic); + } + arrayList_add(pendingListPerTopic,subEP); + free(scope_topic); + + return status; +} + + +celix_status_t pubsubAdmin_serializerAdded(void * handle, service_reference_pt reference, void * service){ + /* Assumption: serializers are all available at startup. + * If a new (possibly better) serializer is installed and started, already created topic_publications/subscriptions will not be destroyed and recreated */ + + celix_status_t status = CELIX_SUCCESS; + int i=0; + + const char *serType = NULL; + serviceReference_getProperty(reference, PUBSUB_SERIALIZER_TYPE_KEY,&serType); + if(serType == NULL){ + printf("Serializer serviceReference %p has no pubsub_serializer.type property specified\n",reference); + return CELIX_SERVICE_EXCEPTION; + } + + pubsub_admin_pt admin = (pubsub_admin_pt)handle; + celixThreadMutex_lock(&admin->serializerListLock); + arrayList_add(admin->serializerList, reference); + celixThreadMutex_unlock(&admin->serializerListLock); + + /* Now let's re-evaluate the pending */ + celixThreadMutex_lock(&admin->noSerializerPendingsLock); + + for(i=0;i<arrayList_size(admin->noSerializerSubscriptions);i++){ + pubsub_endpoint_pt ep = (pubsub_endpoint_pt)arrayList_get(admin->noSerializerSubscriptions,i); + pubsub_serializer_service_t *best_serializer = NULL; + pubsubAdmin_getBestSerializer(admin, ep, &best_serializer); + if(best_serializer != NULL){ /* Finally we have a valid serializer! */ + pubsubAdmin_addSubscription(admin, ep); + } + } + + for(i=0;i<arrayList_size(admin->noSerializerPublications);i++){ + pubsub_endpoint_pt ep = (pubsub_endpoint_pt)arrayList_get(admin->noSerializerPublications,i); + pubsub_serializer_service_t *best_serializer = NULL; + pubsubAdmin_getBestSerializer(admin, ep, &best_serializer); + if(best_serializer != NULL){ /* Finally we have a valid serializer! */ + pubsubAdmin_addPublication(admin, ep); + } + } + + celixThreadMutex_unlock(&admin->noSerializerPendingsLock); + + printf("PSA_UDP_MC: %s serializer added\n",serType); + + return status; +} + +celix_status_t pubsubAdmin_serializerRemoved(void * handle, service_reference_pt reference, void * service){ + + pubsub_admin_pt admin = (pubsub_admin_pt)handle; + int i=0, j=0; + const char *serType = NULL; + + serviceReference_getProperty(reference, PUBSUB_SERIALIZER_TYPE_KEY,&serType); + if(serType == NULL){ + printf("Serializer serviceReference %p has no pubsub_serializer.type property specified\n",reference); + return CELIX_SERVICE_EXCEPTION; + } + + celixThreadMutex_lock(&admin->serializerListLock); + /* Remove the serializer from the list */ + arrayList_removeElement(admin->serializerList, reference); + celixThreadMutex_unlock(&admin->serializerListLock); + + celixThreadMutex_lock(&admin->usedSerializersLock); + array_list_pt topicPubList = (array_list_pt)hashMap_remove(admin->topicPublicationsPerSerializer, service); + array_list_pt topicSubList = (array_list_pt)hashMap_remove(admin->topicSubscriptionsPerSerializer, service); + celixThreadMutex_unlock(&admin->usedSerializersLock); + + /* Now destroy the topicPublications, but first put back the pubsub_endpoints back to the noSerializer pending list */ + if(topicPubList!=NULL){ + for(i=0;i<arrayList_size(topicPubList);i++){ + topic_publication_pt topicPub = (topic_publication_pt)arrayList_get(topicPubList,i); + /* Stop the topic publication */ + pubsub_topicPublicationStop(topicPub); + /* Get the endpoints that are going to be orphan */ + array_list_pt pubList = pubsub_topicPublicationGetPublisherList(topicPub); + for(j=0;j<arrayList_size(pubList);j++){ + pubsub_endpoint_pt pubEP = (pubsub_endpoint_pt)arrayList_get(pubList,j); + /* Remove the publication */ + pubsubAdmin_removePublication(admin, pubEP); + /* Reset the endpoint field, so that will be recreated from scratch when a new serializer will be found */ + if(pubEP->endpoint!=NULL){ + free(pubEP->endpoint); + pubEP->endpoint = NULL; + } + /* Add the orphan endpoint to the noSerializer pending list */ + celixThreadMutex_lock(&admin->noSerializerPendingsLock); + arrayList_add(admin->noSerializerPublications,pubEP); + celixThreadMutex_unlock(&admin->noSerializerPendingsLock); + } + arrayList_destroy(pubList); + + /* Cleanup also the localPublications hashmap*/ + celixThreadMutex_lock(&admin->localPublicationsLock); + hash_map_iterator_pt iter = hashMapIterator_create(admin->localPublications); + char *key = NULL; + service_factory_pt factory = NULL; + while(hashMapIterator_hasNext(iter)){ + hash_map_entry_pt entry = hashMapIterator_nextEntry(iter); + factory = (service_factory_pt)hashMapEntry_getValue(entry); + topic_publication_pt pub = (topic_publication_pt)factory->handle; + if(pub==topicPub){ + key = (char*)hashMapEntry_getKey(entry); + break; + } + } + hashMapIterator_destroy(iter); + if(key!=NULL){ + hashMap_remove(admin->localPublications, key); + free(factory); + free(key); + } + celixThreadMutex_unlock(&admin->localPublicationsLock); + + /* Finally destroy the topicPublication */ + pubsub_topicPublicationDestroy(topicPub); + } + arrayList_destroy(topicPubList); + } + + /* Now destroy the topicSubscriptions, but first put back the pubsub_endpoints back to the noSerializer pending list */ + if(topicSubList!=NULL){ + for(i=0;i<arrayList_size(topicSubList);i++){ + topic_subscription_pt topicSub = (topic_subscription_pt)arrayList_get(topicSubList,i); + /* Stop the topic subscription */ + pubsub_topicSubscriptionStop(topicSub); + /* Get the endpoints that are going to be orphan */ + array_list_pt subList = pubsub_topicSubscriptionGetSubscribersList(topicSub); + for(j=0;j<arrayList_size(subList);j++){ + pubsub_endpoint_pt subEP = (pubsub_endpoint_pt)arrayList_get(subList,j); + /* Remove the subscription */ + pubsubAdmin_removeSubscription(admin, subEP); + /* Reset the endpoint field, so that will be recreated from scratch when a new serializer will be found */ + if(subEP->endpoint!=NULL){ + free(subEP->endpoint); + subEP->endpoint = NULL; + } + /* Add the orphan endpoint to the noSerializer pending list */ + celixThreadMutex_lock(&admin->noSerializerPendingsLock); + arrayList_add(admin->noSerializerSubscriptions,subEP); + celixThreadMutex_unlock(&admin->noSerializerPendingsLock); + } + + /* Cleanup also the subscriptions hashmap*/ + celixThreadMutex_lock(&admin->subscriptionsLock); + hash_map_iterator_pt iter = hashMapIterator_create(admin->subscriptions); + char *key = NULL; + while(hashMapIterator_hasNext(iter)){ + hash_map_entry_pt entry = hashMapIterator_nextEntry(iter); + topic_subscription_pt sub = (topic_subscription_pt)hashMapEntry_getValue(entry); + if(sub==topicSub){ + key = (char*)hashMapEntry_getKey(entry); + break; + } + } + hashMapIterator_destroy(iter); + if(key!=NULL){ + hashMap_remove(admin->subscriptions, key); + free(key); + } + celixThreadMutex_unlock(&admin->subscriptionsLock); + + /* Finally destroy the topicSubscription */ + pubsub_topicSubscriptionDestroy(topicSub); + } + arrayList_destroy(topicSubList); + } + + printf("PSA_UDP_MC: %s serializer removed\n",serType); + + + return CELIX_SUCCESS; +} + +celix_status_t pubsubAdmin_matchEndpoint(pubsub_admin_pt admin, pubsub_endpoint_pt endpoint, double* score){ + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&admin->serializerListLock); + status = pubsub_admin_match(endpoint->topic_props,PUBSUB_ADMIN_TYPE,admin->serializerList,score); + celixThreadMutex_unlock(&admin->serializerListLock); + + return status; +} + +/* This one recall the same logic as in the match function */ +static celix_status_t pubsubAdmin_getBestSerializer(pubsub_admin_pt admin,pubsub_endpoint_pt ep, pubsub_serializer_service_t **serSvc){ + + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&admin->serializerListLock); + status = pubsub_admin_get_best_serializer(ep->topic_props, admin->serializerList, serSvc); + celixThreadMutex_unlock(&admin->serializerListLock); + + return status; + +} + +static void connectTopicPubSubToSerializer(pubsub_admin_pt admin,pubsub_serializer_service_t *serializer,void *topicPubSub,bool isPublication){ + + celixThreadMutex_lock(&admin->usedSerializersLock); + + hash_map_pt map = isPublication?admin->topicPublicationsPerSerializer:admin->topicSubscriptionsPerSerializer; + array_list_pt list = (array_list_pt)hashMap_get(map,serializer); + if(list==NULL){ + arrayList_create(&list); + hashMap_put(map,serializer,list); + } + arrayList_add(list,topicPubSub); + + celixThreadMutex_unlock(&admin->usedSerializersLock); + +} + +static void disconnectTopicPubSubFromSerializer(pubsub_admin_pt admin,void *topicPubSub,bool isPublication){ + + celixThreadMutex_lock(&admin->usedSerializersLock); + + hash_map_pt map = isPublication?admin->topicPublicationsPerSerializer:admin->topicSubscriptionsPerSerializer; + hash_map_iterator_pt iter = hashMapIterator_create(map); + while(hashMapIterator_hasNext(iter)){ + array_list_pt list = (array_list_pt)hashMapIterator_nextValue(iter); + if(arrayList_removeElement(list, topicPubSub)){ //Found it! + break; + } + } + hashMapIterator_destroy(iter); + + celixThreadMutex_unlock(&admin->usedSerializersLock); + +} http://git-wip-us.apache.org/repos/asf/celix/blob/2a670f26/pubsub/pubsub_admin_udp_mc/src/pubsub_admin_impl.h ---------------------------------------------------------------------- diff --git a/pubsub/pubsub_admin_udp_mc/src/pubsub_admin_impl.h b/pubsub/pubsub_admin_udp_mc/src/pubsub_admin_impl.h new file mode 100644 index 0000000..de4b813 --- /dev/null +++ b/pubsub/pubsub_admin_udp_mc/src/pubsub_admin_impl.h @@ -0,0 +1,93 @@ +/** + *Licensed to the Apache Software Foundation (ASF) under one + *or more contributor license agreements. See the NOTICE file + *distributed with this work for additional information + *regarding copyright ownership. The ASF licenses this file + *to you under the Apache License, Version 2.0 (the + *"License"); you may not use this file except in compliance + *with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + *Unless required by applicable law or agreed to in writing, + *software distributed under the License is distributed on an + *"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + *specific language governing permissions and limitations + *under the License. + */ +/* + * pubsub_admin_impl.h + * + * \date Dec 5, 2013 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#ifndef PUBSUB_ADMIN_UDP_MC_IMPL_H_ +#define PUBSUB_ADMIN_UDP_MC_IMPL_H_ + +#include "pubsub_admin.h" +#include "log_helper.h" + +#define PUBSUB_ADMIN_TYPE "udp_mc" + +struct pubsub_admin { + + bundle_context_pt bundle_context; + log_helper_pt loghelper; + + /* List of the available serializers */ + celix_thread_mutex_t serializerListLock; // List<serializers> + array_list_pt serializerList; + + celix_thread_mutex_t localPublicationsLock; + hash_map_pt localPublications;//<topic(string),service_factory_pt> + + celix_thread_mutex_t externalPublicationsLock; + hash_map_pt externalPublications;//<topic(string),List<pubsub_ep>> + + celix_thread_mutex_t subscriptionsLock; + hash_map_pt subscriptions; //<topic(string),topic_subscription> + + celix_thread_mutex_t pendingSubscriptionsLock; + celix_thread_mutexattr_t pendingSubscriptionsAttr; + hash_map_pt pendingSubscriptions; //<topic(string),List<pubsub_ep>> + + /* Those are used to keep track of valid subscriptions/publications that still have no valid serializer */ + celix_thread_mutex_t noSerializerPendingsLock; + celix_thread_mutexattr_t noSerializerPendingsAttr; + array_list_pt noSerializerSubscriptions; // List<pubsub_ep> + array_list_pt noSerializerPublications; // List<pubsub_ep> + + celix_thread_mutex_t usedSerializersLock; + hash_map_pt topicSubscriptionsPerSerializer; // <serializer,List<topicSubscription>> + hash_map_pt topicPublicationsPerSerializer; // <serializer,List<topicPublications>> + + char* ifIpAddress; // The local interface which is used for multicast communication + char* mcIpAddress; // The multicast IP address + + int sendSocket; + void* zmq_context; // to be removed + +}; + +celix_status_t pubsubAdmin_create(bundle_context_pt context, pubsub_admin_pt *admin); +celix_status_t pubsubAdmin_destroy(pubsub_admin_pt admin); + +celix_status_t pubsubAdmin_addSubscription(pubsub_admin_pt admin,pubsub_endpoint_pt subEP); +celix_status_t pubsubAdmin_removeSubscription(pubsub_admin_pt admin,pubsub_endpoint_pt subEP); + +celix_status_t pubsubAdmin_addPublication(pubsub_admin_pt admin,pubsub_endpoint_pt pubEP); +celix_status_t pubsubAdmin_removePublication(pubsub_admin_pt admin,pubsub_endpoint_pt pubEP); + +celix_status_t pubsubAdmin_closeAllPublications(pubsub_admin_pt admin,char* scope, char* topic); +celix_status_t pubsubAdmin_closeAllSubscriptions(pubsub_admin_pt admin,char* scope, char* topic); + +celix_status_t pubsubAdmin_serializerAdded(void * handle, service_reference_pt reference, void * service); +celix_status_t pubsubAdmin_serializerRemoved(void * handle, service_reference_pt reference, void * service); + +celix_status_t pubsubAdmin_matchEndpoint(pubsub_admin_pt admin, pubsub_endpoint_pt endpoint, double* score); + + +#endif /* PUBSUB_ADMIN_UDP_MC_IMPL_H_ */ http://git-wip-us.apache.org/repos/asf/celix/blob/2a670f26/pubsub/pubsub_admin_udp_mc/src/topic_publication.c ---------------------------------------------------------------------- diff --git a/pubsub/pubsub_admin_udp_mc/src/topic_publication.c b/pubsub/pubsub_admin_udp_mc/src/topic_publication.c new file mode 100644 index 0000000..e43ec29 --- /dev/null +++ b/pubsub/pubsub_admin_udp_mc/src/topic_publication.c @@ -0,0 +1,444 @@ +/** + *Licensed to the Apache Software Foundation (ASF) under one + *or more contributor license agreements. See the NOTICE file + *distributed with this work for additional information + *regarding copyright ownership. The ASF licenses this file + *to you under the Apache License, Version 2.0 (the + *"License"); you may not use this file except in compliance + *with the License. You may obtain a copy of the License at + * + * htPSA_UDP_MC_TP://www.apache.org/licenses/LICENSE-2.0 + * + *Unless required by applicable law or agreed to in writing, + *software distributed under the License is distributed on an + *"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + *specific language governing permissions and limitations + *under the License. + */ +/* + * topic_publication.c + * + * \date Sep 24, 2015 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> + +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> + +#include "array_list.h" +#include "celixbool.h" +#include "service_registration.h" +#include "utils.h" +#include "service_factory.h" +#include "version.h" + +#include "topic_publication.h" +#include "pubsub_common.h" +#include "publisher.h" +#include "large_udp.h" + +#include "pubsub_serializer.h" + +#define EP_ADDRESS_LEN 32 + +#define FIRST_SEND_DELAY 2 + +struct topic_publication { + int sendSocket; + char* endpoint; + service_registration_pt svcFactoryReg; + array_list_pt pub_ep_list; //List<pubsub_endpoint> + hash_map_pt boundServices; //<bundle_pt,bound_service> + celix_thread_mutex_t tp_lock; + pubsub_serializer_service_t *serializer; + struct sockaddr_in destAddr; +}; + +typedef struct publish_bundle_bound_service { + topic_publication_pt parent; + pubsub_publisher_t service; + bundle_pt bundle; + char *scope; + char *topic; + hash_map_pt msgTypes; + unsigned short getCount; + celix_thread_mutex_t mp_lock; + largeUdp_pt largeUdpHandle; +}* publish_bundle_bound_service_pt; + + +typedef struct pubsub_msg{ + pubsub_msg_header_pt header; + char* payload; + unsigned int payloadSize; +} pubsub_msg_t; + + +static unsigned int rand_range(unsigned int min, unsigned int max); + +static celix_status_t pubsub_topicPublicationGetService(void* handle, bundle_pt bundle, service_registration_pt registration, void **service); +static celix_status_t pubsub_topicPublicationUngetService(void* handle, bundle_pt bundle, service_registration_pt registration, void **service); + +static publish_bundle_bound_service_pt pubsub_createPublishBundleBoundService(topic_publication_pt tp,bundle_pt bundle); +static void pubsub_destroyPublishBundleBoundService(publish_bundle_bound_service_pt boundSvc); + +static int pubsub_topicPublicationSend(void* handle,unsigned int msgTypeId, const void *msg); + +static int pubsub_localMsgTypeIdForUUID(void* handle, const char* msgType, unsigned int* msgTypeId); + + +static void delay_first_send_for_late_joiners(void); + + +celix_status_t pubsub_topicPublicationCreate(int sendSocket, pubsub_endpoint_pt pubEP, pubsub_serializer_service_t *best_serializer, char* bindIP, topic_publication_pt *out){ + + char* ep = malloc(EP_ADDRESS_LEN); + memset(ep,0,EP_ADDRESS_LEN); + unsigned int port = pubEP->serviceID + rand_range(UDP_BASE_PORT+pubEP->serviceID+3, UDP_MAX_PORT); + snprintf(ep,EP_ADDRESS_LEN,"udp://%s:%u",bindIP,port); + + + topic_publication_pt pub = calloc(1,sizeof(*pub)); + + arrayList_create(&(pub->pub_ep_list)); + pub->boundServices = hashMap_create(NULL,NULL,NULL,NULL); + celixThreadMutex_create(&(pub->tp_lock),NULL); + + pub->endpoint = ep; + pub->sendSocket = sendSocket; + pub->destAddr.sin_family = AF_INET; + pub->destAddr.sin_addr.s_addr = inet_addr(bindIP); + pub->destAddr.sin_port = htons(port); + + pub->serializer = best_serializer; + + pubsub_topicPublicationAddPublisherEP(pub,pubEP); + + *out = pub; + + return CELIX_SUCCESS; +} + +celix_status_t pubsub_topicPublicationDestroy(topic_publication_pt pub){ + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&(pub->tp_lock)); + + free(pub->endpoint); + arrayList_destroy(pub->pub_ep_list); + + hash_map_iterator_pt iter = hashMapIterator_create(pub->boundServices); + while(hashMapIterator_hasNext(iter)){ + publish_bundle_bound_service_pt bound = hashMapIterator_nextValue(iter); + pubsub_destroyPublishBundleBoundService(bound); + } + hashMapIterator_destroy(iter); + hashMap_destroy(pub->boundServices,false,false); + + pub->svcFactoryReg = NULL; + pub->serializer = NULL; + + if(close(pub->sendSocket) != 0){ + status = CELIX_FILE_IO_EXCEPTION; + } + + celixThreadMutex_unlock(&(pub->tp_lock)); + + celixThreadMutex_destroy(&(pub->tp_lock)); + + free(pub); + + return status; +} + +celix_status_t pubsub_topicPublicationStart(bundle_context_pt bundle_context,topic_publication_pt pub,service_factory_pt* svcFactory){ + celix_status_t status = CELIX_SUCCESS; + + /* Let's register the new service */ + + pubsub_endpoint_pt pubEP = (pubsub_endpoint_pt)arrayList_get(pub->pub_ep_list,0); + + if(pubEP!=NULL){ + service_factory_pt factory = calloc(1, sizeof(*factory)); + factory->handle = pub; + factory->getService = pubsub_topicPublicationGetService; + factory->ungetService = pubsub_topicPublicationUngetService; + + properties_pt props = properties_create(); + properties_set(props,PUBSUB_PUBLISHER_SCOPE,pubEP->scope); + properties_set(props,PUBSUB_PUBLISHER_TOPIC,pubEP->topic); + + status = bundleContext_registerServiceFactory(bundle_context,PUBSUB_PUBLISHER_SERVICE_NAME,factory,props,&(pub->svcFactoryReg)); + + if(status != CELIX_SUCCESS){ + properties_destroy(props); + printf("PSA_UDP_MC_PSA_UDP_MC_TP: Cannot register ServiceFactory for topic %s, topic %s (bundle %ld).\n",pubEP->scope, pubEP->topic,pubEP->serviceID); + } + else{ + *svcFactory = factory; + } + } + else{ + printf("PSA_UDP_MC_PSA_UDP_MC_TP: Cannot find pubsub_endpoint after adding it...Should never happen!\n"); + status = CELIX_SERVICE_EXCEPTION; + } + + return status; +} + +celix_status_t pubsub_topicPublicationStop(topic_publication_pt pub){ + return serviceRegistration_unregister(pub->svcFactoryReg); +} + +celix_status_t pubsub_topicPublicationAddPublisherEP(topic_publication_pt pub,pubsub_endpoint_pt ep){ + + celixThreadMutex_lock(&(pub->tp_lock)); + ep->endpoint = strdup(pub->endpoint); + arrayList_add(pub->pub_ep_list,ep); + celixThreadMutex_unlock(&(pub->tp_lock)); + + return CELIX_SUCCESS; +} + +celix_status_t pubsub_topicPublicationRemovePublisherEP(topic_publication_pt pub,pubsub_endpoint_pt ep){ + + celixThreadMutex_lock(&(pub->tp_lock)); + arrayList_removeElement(pub->pub_ep_list,ep); + celixThreadMutex_unlock(&(pub->tp_lock)); + + return CELIX_SUCCESS; +} + +array_list_pt pubsub_topicPublicationGetPublisherList(topic_publication_pt pub){ + array_list_pt list = NULL; + celixThreadMutex_lock(&(pub->tp_lock)); + list = arrayList_clone(pub->pub_ep_list); + celixThreadMutex_unlock(&(pub->tp_lock)); + return list; +} + + +static celix_status_t pubsub_topicPublicationGetService(void* handle, bundle_pt bundle, service_registration_pt registration, void **service) { + celix_status_t status = CELIX_SUCCESS; + + topic_publication_pt publish = (topic_publication_pt)handle; + + celixThreadMutex_lock(&(publish->tp_lock)); + + publish_bundle_bound_service_pt bound = (publish_bundle_bound_service_pt)hashMap_get(publish->boundServices,bundle); + if(bound==NULL){ + bound = pubsub_createPublishBundleBoundService(publish,bundle); + if(bound!=NULL){ + hashMap_put(publish->boundServices,bundle,bound); + } + } + else{ + bound->getCount++; + } + + if (bound != NULL) { + *service = &bound->service; + } + + celixThreadMutex_unlock(&(publish->tp_lock)); + + return status; +} + +static celix_status_t pubsub_topicPublicationUngetService(void* handle, bundle_pt bundle, service_registration_pt registration, void **service) { + + topic_publication_pt publish = (topic_publication_pt)handle; + + celixThreadMutex_lock(&(publish->tp_lock)); + + publish_bundle_bound_service_pt bound = (publish_bundle_bound_service_pt)hashMap_get(publish->boundServices,bundle); + if(bound!=NULL){ + + bound->getCount--; + if(bound->getCount==0){ + pubsub_destroyPublishBundleBoundService(bound); + hashMap_remove(publish->boundServices,bundle); + } + + } + else{ + long bundleId = -1; + bundle_getBundleId(bundle,&bundleId); + printf("PSA_UDP_MC_TP: Unexpected ungetService call for bundle %ld.\n", bundleId); + } + + /* service should be never used for unget, so let's set the pointer to NULL */ + *service = NULL; + + celixThreadMutex_unlock(&(publish->tp_lock)); + + return CELIX_SUCCESS; +} + +static bool send_pubsub_msg(publish_bundle_bound_service_pt bound, pubsub_msg_t* msg, bool last, pubsub_release_callback_t *releaseCallback){ + const int iovec_len = 3; // header + size + payload + bool ret = true; + + struct iovec msg_iovec[iovec_len]; + msg_iovec[0].iov_base = msg->header; + msg_iovec[0].iov_len = sizeof(*msg->header); + msg_iovec[1].iov_base = &msg->payloadSize; + msg_iovec[1].iov_len = sizeof(msg->payloadSize); + msg_iovec[2].iov_base = msg->payload; + msg_iovec[2].iov_len = msg->payloadSize; + + delay_first_send_for_late_joiners(); + + if(largeUdp_sendmsg(bound->largeUdpHandle, bound->parent->sendSocket, msg_iovec, iovec_len, 0, &bound->parent->destAddr, sizeof(bound->parent->destAddr)) == -1) { + perror("send_pubsub_msg:sendSocket"); + ret = false; + } + + if(releaseCallback) { + releaseCallback->release(msg->payload, bound); + } + return ret; + +} + + +static int pubsub_topicPublicationSend(void* handle, unsigned int msgTypeId, const void *inMsg) { + int status = 0; + publish_bundle_bound_service_pt bound = (publish_bundle_bound_service_pt) handle; + + celixThreadMutex_lock(&(bound->parent->tp_lock)); + celixThreadMutex_lock(&(bound->mp_lock)); + + pubsub_msg_serializer_t* msgSer = (pubsub_msg_serializer_t*)hashMap_get(bound->msgTypes, (void*)(uintptr_t)msgTypeId); + + if (msgSer != NULL) { + int major=0, minor=0; + + pubsub_msg_header_pt msg_hdr = calloc(1,sizeof(struct pubsub_msg_header)); + strncpy(msg_hdr->topic,bound->topic,MAX_TOPIC_LEN-1); + msg_hdr->type = msgTypeId; + + + if (msgSer->msgVersion != NULL){ + version_getMajor(msgSer->msgVersion, &major); + version_getMinor(msgSer->msgVersion, &minor); + msg_hdr->major = major; + msg_hdr->minor = minor; + } + + void* serializedOutput = NULL; + size_t serializedOutputLen = 0; + msgSer->serialize(msgSer,inMsg,&serializedOutput, &serializedOutputLen); + + pubsub_msg_t *msg = calloc(1,sizeof(pubsub_msg_t)); + msg->header = msg_hdr; + msg->payload = (char*)serializedOutput; + msg->payloadSize = serializedOutputLen; + + + if(send_pubsub_msg(bound, msg,true, NULL) == false) { + status = -1; + } + free(msg_hdr); + free(msg); + free(serializedOutput); + + + } else { + printf("PSA_UDP_MC_TP: No msg serializer available for msg type id %d\n", msgTypeId); + status=-1; + } + + celixThreadMutex_unlock(&(bound->mp_lock)); + celixThreadMutex_unlock(&(bound->parent->tp_lock)); + + return status; +} + +static int pubsub_localMsgTypeIdForUUID(void* handle, const char* msgType, unsigned int* msgTypeId){ + *msgTypeId = utils_stringHash(msgType); + return 0; +} + + +static unsigned int rand_range(unsigned int min, unsigned int max){ + + double scaled = (double)(((double)random())/((double)RAND_MAX)); + return (max-min+1)*scaled + min; + +} + +static publish_bundle_bound_service_pt pubsub_createPublishBundleBoundService(topic_publication_pt tp,bundle_pt bundle){ + + publish_bundle_bound_service_pt bound = calloc(1, sizeof(*bound)); + + if (bound != NULL) { + + bound->parent = tp; + bound->bundle = bundle; + bound->getCount = 1; + celixThreadMutex_create(&bound->mp_lock,NULL); + + if(tp->serializer != NULL){ + tp->serializer->createSerializerMap(tp->serializer->handle,bundle,&bound->msgTypes); + } + + pubsub_endpoint_pt pubEP = (pubsub_endpoint_pt)arrayList_get(bound->parent->pub_ep_list,0); + bound->scope=strdup(pubEP->scope); + bound->topic=strdup(pubEP->topic); + bound->largeUdpHandle = largeUdp_create(1); + + bound->service.handle = bound; + bound->service.localMsgTypeIdForMsgType = pubsub_localMsgTypeIdForUUID; + bound->service.send = pubsub_topicPublicationSend; + bound->service.sendMultipart = NULL; //Multipart not supported for UDP + + } + + return bound; +} + +static void pubsub_destroyPublishBundleBoundService(publish_bundle_bound_service_pt boundSvc){ + + celixThreadMutex_lock(&boundSvc->mp_lock); + + if(boundSvc->parent->serializer != NULL && boundSvc->msgTypes != NULL){ + boundSvc->parent->serializer->destroySerializerMap(boundSvc->parent->serializer->handle, boundSvc->msgTypes); + } + + if(boundSvc->scope!=NULL){ + free(boundSvc->scope); + } + + if(boundSvc->topic!=NULL){ + free(boundSvc->topic); + } + + largeUdp_destroy(boundSvc->largeUdpHandle); + + celixThreadMutex_unlock(&boundSvc->mp_lock); + celixThreadMutex_destroy(&boundSvc->mp_lock); + + free(boundSvc); + +} + +static void delay_first_send_for_late_joiners(){ + + static bool firstSend = true; + + if(firstSend){ + printf("PSA_UDP_MC_TP: Delaying first send for late joiners...\n"); + sleep(FIRST_SEND_DELAY); + firstSend = false; + } +} http://git-wip-us.apache.org/repos/asf/celix/blob/2a670f26/pubsub/pubsub_admin_udp_mc/src/topic_publication.h ---------------------------------------------------------------------- diff --git a/pubsub/pubsub_admin_udp_mc/src/topic_publication.h b/pubsub/pubsub_admin_udp_mc/src/topic_publication.h new file mode 100644 index 0000000..4363d71 --- /dev/null +++ b/pubsub/pubsub_admin_udp_mc/src/topic_publication.h @@ -0,0 +1,57 @@ +/** + *Licensed to the Apache Software Foundation (ASF) under one + *or more contributor license agreements. See the NOTICE file + *distributed with this work for additional information + *regarding copyright ownership. The ASF licenses this file + *to you under the Apache License, Version 2.0 (the + *"License"); you may not use this file except in compliance + *with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + *Unless required by applicable law or agreed to in writing, + *software distributed under the License is distributed on an + *"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + *specific language governing permissions and limitations + *under the License. + */ +/* + * topic_publication.h + * + * \date Sep 24, 2015 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#ifndef TOPIC_PUBLICATION_H_ +#define TOPIC_PUBLICATION_H_ + +#include "publisher.h" +#include "pubsub_endpoint.h" +#include "pubsub_common.h" + +#include "pubsub_serializer.h" + +#define UDP_BASE_PORT 49152 +#define UDP_MAX_PORT 65000 + +typedef struct pubsub_udp_msg { + struct pubsub_msg_header header; + unsigned int payloadSize; + char payload[]; +} pubsub_udp_msg_t; + +typedef struct topic_publication *topic_publication_pt; +celix_status_t pubsub_topicPublicationCreate(int sendSocket, pubsub_endpoint_pt pubEP, pubsub_serializer_service_t *best_serializer, char* bindIP, topic_publication_pt *out); +celix_status_t pubsub_topicPublicationDestroy(topic_publication_pt pub); + +celix_status_t pubsub_topicPublicationAddPublisherEP(topic_publication_pt pub,pubsub_endpoint_pt ep); +celix_status_t pubsub_topicPublicationRemovePublisherEP(topic_publication_pt pub,pubsub_endpoint_pt ep); + +celix_status_t pubsub_topicPublicationStart(bundle_context_pt bundle_context,topic_publication_pt pub,service_factory_pt* svcFactory); +celix_status_t pubsub_topicPublicationStop(topic_publication_pt pub); + +array_list_pt pubsub_topicPublicationGetPublisherList(topic_publication_pt pub); + +#endif /* TOPIC_PUBLICATION_H_ */ http://git-wip-us.apache.org/repos/asf/celix/blob/2a670f26/pubsub/pubsub_admin_udp_mc/src/topic_subscription.c ---------------------------------------------------------------------- diff --git a/pubsub/pubsub_admin_udp_mc/src/topic_subscription.c b/pubsub/pubsub_admin_udp_mc/src/topic_subscription.c new file mode 100644 index 0000000..d8e6f45 --- /dev/null +++ b/pubsub/pubsub_admin_udp_mc/src/topic_subscription.c @@ -0,0 +1,635 @@ +/** + *Licensed to the Apache Software Foundation (ASF) under one + *or more contributor license agreements. See the NOTICE file + *distributed with this work for additional information + *regarding copyright ownership. The ASF licenses this file + *to you under the Apache License, Version 2.0 (the + *"License"); you may not use this file except in compliance + *with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + *Unless required by applicable law or agreed to in writing, + *software distributed under the License is distributed on an + *"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + *specific language governing permissions and limitations + *under the License. + */ +/* + * topic_subscription.c + * + * \date Oct 2, 2015 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#include <string.h> +#include <stdlib.h> +#include <unistd.h> +#include <signal.h> + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/epoll.h> +#include <netinet/in.h> +#include <arpa/inet.h> + +#include "utils.h" +#include "celix_errno.h" +#include "constants.h" +#include "version.h" + +#include "topic_subscription.h" +#include "topic_publication.h" +#include "subscriber.h" +#include "publisher.h" +#include "large_udp.h" + +#include "pubsub_serializer.h" + +#define MAX_EPOLL_EVENTS 10 +#define RECV_THREAD_TIMEOUT 5 +#define UDP_BUFFER_SIZE 65535 +#define MAX_UDP_SESSIONS 16 + +struct topic_subscription{ + char* ifIpAddress; + service_tracker_pt tracker; + array_list_pt sub_ep_list; + celix_thread_t recv_thread; + bool running; + celix_thread_mutex_t ts_lock; + bundle_context_pt context; + + pubsub_serializer_service_t *serializer; + + int topicEpollFd; // EPOLL filedescriptor where the sockets are registered. + hash_map_pt servicesMap; // key = service, value = msg types map + hash_map_pt socketMap; // key = URL, value = listen-socket + celix_thread_mutex_t socketMap_lock; + + celix_thread_mutex_t pendingConnections_lock; + array_list_pt pendingConnections; + + array_list_pt pendingDisconnections; + celix_thread_mutex_t pendingDisconnections_lock; + + //array_list_pt rawServices; + unsigned int nrSubscribers; + largeUdp_pt largeUdpHandle; +}; + +typedef struct msg_map_entry{ + bool retain; + void* msgInst; +}* msg_map_entry_pt; + +static celix_status_t topicsub_subscriberTracked(void * handle, service_reference_pt reference, void * service); +static celix_status_t topicsub_subscriberUntracked(void * handle, service_reference_pt reference, void * service); +static void* udp_recv_thread_func(void* arg); +static bool checkVersion(version_pt msgVersion,pubsub_msg_header_pt hdr); +static void sigusr1_sighandler(int signo); +static int pubsub_localMsgTypeIdForMsgType(void* handle, const char* msgType, unsigned int* msgTypeId); +static void connectPendingPublishers(topic_subscription_pt sub); +static void disconnectPendingPublishers(topic_subscription_pt sub); + + +celix_status_t pubsub_topicSubscriptionCreate(bundle_context_pt bundle_context, char* ifIp,char* scope, char* topic ,pubsub_serializer_service_t *best_serializer, topic_subscription_pt* out){ + celix_status_t status = CELIX_SUCCESS; + + topic_subscription_pt ts = (topic_subscription_pt) calloc(1,sizeof(*ts)); + ts->context = bundle_context; + ts->ifIpAddress = strdup(ifIp); +#if defined(__APPLE__) && defined(__MACH__) + //TODO: Use kqueue for OSX +#else + ts->topicEpollFd = epoll_create1(0); +#endif + if(ts->topicEpollFd == -1) { + status += CELIX_SERVICE_EXCEPTION; + } + + ts->running = false; + ts->nrSubscribers = 0; + ts->serializer = best_serializer; + + celixThreadMutex_create(&ts->ts_lock,NULL); + arrayList_create(&ts->sub_ep_list); + ts->servicesMap = hashMap_create(NULL, NULL, NULL, NULL); + ts->socketMap = hashMap_create(utils_stringHash, NULL, utils_stringEquals, NULL); + + arrayList_create(&ts->pendingConnections); + arrayList_create(&ts->pendingDisconnections); + celixThreadMutex_create(&ts->pendingConnections_lock, NULL); + celixThreadMutex_create(&ts->pendingDisconnections_lock, NULL); + celixThreadMutex_create(&ts->socketMap_lock, NULL); + + ts->largeUdpHandle = largeUdp_create(MAX_UDP_SESSIONS); + + char filter[128]; + memset(filter,0,128); + if(strncmp(PUBSUB_SUBSCRIBER_SCOPE_DEFAULT, scope, strlen(PUBSUB_SUBSCRIBER_SCOPE_DEFAULT)) == 0) { + // default scope, means that subscriber has not defined a scope property + snprintf(filter, 128, "(&(%s=%s)(%s=%s))", + (char*) OSGI_FRAMEWORK_OBJECTCLASS, PUBSUB_SUBSCRIBER_SERVICE_NAME, + PUBSUB_SUBSCRIBER_TOPIC,topic); + + } else { + snprintf(filter, 128, "(&(%s=%s)(%s=%s)(%s=%s))", + (char*) OSGI_FRAMEWORK_OBJECTCLASS, PUBSUB_SUBSCRIBER_SERVICE_NAME, + PUBSUB_SUBSCRIBER_TOPIC,topic, + PUBSUB_SUBSCRIBER_SCOPE,scope); + } + + service_tracker_customizer_pt customizer = NULL; + status += serviceTrackerCustomizer_create(ts,NULL,topicsub_subscriberTracked,NULL,topicsub_subscriberUntracked,&customizer); + status += serviceTracker_createWithFilter(bundle_context, filter, customizer, &ts->tracker); + + struct sigaction actions; + memset(&actions, 0, sizeof(actions)); + sigemptyset(&actions.sa_mask); + actions.sa_flags = 0; + actions.sa_handler = sigusr1_sighandler; + + sigaction(SIGUSR1,&actions,NULL); + + if (status == CELIX_SUCCESS) { + *out=ts; + } + + return status; +} + +celix_status_t pubsub_topicSubscriptionDestroy(topic_subscription_pt ts){ + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&ts->ts_lock); + ts->running = false; + free(ts->ifIpAddress); + serviceTracker_destroy(ts->tracker); + arrayList_clear(ts->sub_ep_list); + arrayList_destroy(ts->sub_ep_list); + hashMap_destroy(ts->servicesMap,false,false); + + celixThreadMutex_lock(&ts->socketMap_lock); + hashMap_destroy(ts->socketMap,true,true); + celixThreadMutex_unlock(&ts->socketMap_lock); + celixThreadMutex_destroy(&ts->socketMap_lock); + + celixThreadMutex_lock(&ts->pendingConnections_lock); + arrayList_destroy(ts->pendingConnections); + celixThreadMutex_unlock(&ts->pendingConnections_lock); + celixThreadMutex_destroy(&ts->pendingConnections_lock); + + celixThreadMutex_lock(&ts->pendingDisconnections_lock); + arrayList_destroy(ts->pendingDisconnections); + celixThreadMutex_unlock(&ts->pendingDisconnections_lock); + celixThreadMutex_destroy(&ts->pendingDisconnections_lock); + + largeUdp_destroy(ts->largeUdpHandle); +#if defined(__APPLE__) && defined(__MACH__) + //TODO: Use kqueue for OSX +#else + close(ts->topicEpollFd); +#endif + + celixThreadMutex_unlock(&ts->ts_lock); + + celixThreadMutex_destroy(&ts->ts_lock); + + free(ts); + + return status; +} + +celix_status_t pubsub_topicSubscriptionStart(topic_subscription_pt ts){ + celix_status_t status = CELIX_SUCCESS; + + status = serviceTracker_open(ts->tracker); + + ts->running = true; + + if(status==CELIX_SUCCESS){ + status=celixThread_create(&ts->recv_thread,NULL,udp_recv_thread_func,ts); + } + + return status; +} + +celix_status_t pubsub_topicSubscriptionStop(topic_subscription_pt ts){ + celix_status_t status = CELIX_SUCCESS; + struct epoll_event ev; + memset(&ev, 0, sizeof(ev)); + + ts->running = false; + + pthread_kill(ts->recv_thread.thread,SIGUSR1); + + celixThread_join(ts->recv_thread,NULL); + + status = serviceTracker_close(ts->tracker); + + celixThreadMutex_lock(&ts->socketMap_lock); + hash_map_iterator_pt it = hashMapIterator_create(ts->socketMap); + while(hashMapIterator_hasNext(it)) { + hash_map_entry_pt entry = hashMapIterator_nextEntry(it); + char *url = hashMapEntry_getKey(entry); + int *s = hashMapEntry_getValue(entry); + memset(&ev, 0, sizeof(ev)); + if(epoll_ctl(ts->topicEpollFd, EPOLL_CTL_DEL, *s, &ev) == -1) { + printf("in if error()\n"); + perror("epoll_ctl() EPOLL_CTL_DEL"); + status += CELIX_SERVICE_EXCEPTION; + } + free(s); + free(url); + //hashMapIterator_remove(it); + } + hashMapIterator_destroy(it); + hashMap_clear(ts->socketMap, false, false); + celixThreadMutex_unlock(&ts->socketMap_lock); + + + return status; +} + +celix_status_t pubsub_topicSubscriptionConnectPublisher(topic_subscription_pt ts, char* pubURL) { + + printf("pubsub_topicSubscriptionConnectPublisher : pubURL = %s\n", pubURL); + + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&ts->socketMap_lock); + + if(!hashMap_containsKey(ts->socketMap, pubURL)){ + + int *recvSocket = calloc(sizeof(int), 1); + *recvSocket = socket(AF_INET, SOCK_DGRAM, 0); + if (*recvSocket < 0) { + perror("pubsub_topicSubscriptionCreate:socket"); + status = CELIX_SERVICE_EXCEPTION; + } + + if (status == CELIX_SUCCESS){ + int reuse = 1; + if (setsockopt(*recvSocket, SOL_SOCKET, SO_REUSEADDR, (char*) &reuse, sizeof(reuse)) != 0) { + perror("setsockopt() SO_REUSEADDR"); + status = CELIX_SERVICE_EXCEPTION; + } + } + + if(status == CELIX_SUCCESS){ + // TODO Check if there is a better way to parse the URL to IP/Portnr + //replace ':' by spaces + char *url = strdup(pubURL); + char *pt = url; + while((pt=strchr(pt, ':')) != NULL) { + *pt = ' '; + } + char mcIp[100]; + unsigned short mcPort; + sscanf(url, "udp //%s %hu", mcIp, &mcPort); + free(url); + + printf("pubsub_topicSubscriptionConnectPublisher : IP = %s, Port = %hu\n", mcIp, mcPort); + + struct ip_mreq mc_addr; + mc_addr.imr_multiaddr.s_addr = inet_addr(mcIp); + mc_addr.imr_interface.s_addr = inet_addr(ts->ifIpAddress); + printf("Adding MC %s at interface %s\n", mcIp, ts->ifIpAddress); + if (setsockopt(*recvSocket, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char*) &mc_addr, sizeof(mc_addr)) != 0) { + perror("setsockopt() IP_ADD_MEMBERSHIP"); + status = CELIX_SERVICE_EXCEPTION; + } + + if (status == CELIX_SUCCESS){ + struct sockaddr_in mcListenAddr; + mcListenAddr.sin_family = AF_INET; + mcListenAddr.sin_addr.s_addr = INADDR_ANY; + mcListenAddr.sin_port = htons(mcPort); + if(bind(*recvSocket, (struct sockaddr*)&mcListenAddr, sizeof(mcListenAddr)) != 0) { + perror("bind()"); + status = CELIX_SERVICE_EXCEPTION; + } + } + + if (status == CELIX_SUCCESS){ +#if defined(__APPLE__) && defined(__MACH__) + //TODO: Use kqueue for OSX +#else + struct epoll_event ev; + memset(&ev, 0, sizeof(ev)); + ev.events = EPOLLIN; + ev.data.fd = *recvSocket; + if(epoll_ctl(ts->topicEpollFd, EPOLL_CTL_ADD, *recvSocket, &ev) == -1) { + perror("epoll_ctl() EPOLL_CTL_ADD"); + status = CELIX_SERVICE_EXCEPTION; + } +#endif + } + + } + + if (status == CELIX_SUCCESS){ + hashMap_put(ts->socketMap, strdup(pubURL), (void*)recvSocket); + } + else{ + free(recvSocket); + } + } + + celixThreadMutex_unlock(&ts->socketMap_lock); + + return status; +} + +celix_status_t pubsub_topicSubscriptionAddConnectPublisherToPendingList(topic_subscription_pt ts, char* pubURL) { + celix_status_t status = CELIX_SUCCESS; + char *url = strdup(pubURL); + celixThreadMutex_lock(&ts->pendingConnections_lock); + arrayList_add(ts->pendingConnections, url); + celixThreadMutex_unlock(&ts->pendingConnections_lock); + return status; +} + +celix_status_t pubsub_topicSubscriptionAddDisconnectPublisherToPendingList(topic_subscription_pt ts, char* pubURL) { + celix_status_t status = CELIX_SUCCESS; + char *url = strdup(pubURL); + celixThreadMutex_lock(&ts->pendingDisconnections_lock); + arrayList_add(ts->pendingDisconnections, url); + celixThreadMutex_unlock(&ts->pendingDisconnections_lock); + return status; +} + +celix_status_t pubsub_topicSubscriptionDisconnectPublisher(topic_subscription_pt ts, char* pubURL){ + printf("pubsub_topicSubscriptionDisconnectPublisher : pubURL = %s\n", pubURL); + celix_status_t status = CELIX_SUCCESS; + struct epoll_event ev; + memset(&ev, 0, sizeof(ev)); + + celixThreadMutex_lock(&ts->socketMap_lock); + + if (hashMap_containsKey(ts->socketMap, pubURL)){ + +#if defined(__APPLE__) && defined(__MACH__) + //TODO: Use kqueue for OSX +#else + int *s = hashMap_remove(ts->socketMap, pubURL); + if(epoll_ctl(ts->topicEpollFd, EPOLL_CTL_DEL, *s, &ev) == -1) { + printf("in if error()\n"); + perror("epoll_ctl() EPOLL_CTL_DEL"); + status = CELIX_SERVICE_EXCEPTION; + } + free(s); +#endif + + } + + celixThreadMutex_unlock(&ts->socketMap_lock); + + return status; +} + +celix_status_t pubsub_topicSubscriptionAddSubscriber(topic_subscription_pt ts, pubsub_endpoint_pt subEP){ + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&ts->ts_lock); + arrayList_add(ts->sub_ep_list,subEP); + celixThreadMutex_unlock(&ts->ts_lock); + + return status; + +} + +celix_status_t pubsub_topicIncreaseNrSubscribers(topic_subscription_pt ts) { + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&ts->ts_lock); + ts->nrSubscribers++; + celixThreadMutex_unlock(&ts->ts_lock); + + return status; +} + +celix_status_t pubsub_topicSubscriptionRemoveSubscriber(topic_subscription_pt ts, pubsub_endpoint_pt subEP){ + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&ts->ts_lock); + arrayList_removeElement(ts->sub_ep_list,subEP); + celixThreadMutex_unlock(&ts->ts_lock); + + return status; +} + +celix_status_t pubsub_topicDecreaseNrSubscribers(topic_subscription_pt ts) { + celix_status_t status = CELIX_SUCCESS; + + celixThreadMutex_lock(&ts->ts_lock); + ts->nrSubscribers--; + celixThreadMutex_unlock(&ts->ts_lock); + + return status; +} + +unsigned int pubsub_topicGetNrSubscribers(topic_subscription_pt ts) { + return ts->nrSubscribers; +} + +array_list_pt pubsub_topicSubscriptionGetSubscribersList(topic_subscription_pt sub){ + return sub->sub_ep_list; +} + + +static celix_status_t topicsub_subscriberTracked(void * handle, service_reference_pt reference, void * service){ + celix_status_t status = CELIX_SUCCESS; + topic_subscription_pt ts = handle; + + celixThreadMutex_lock(&ts->ts_lock); + if (!hashMap_containsKey(ts->servicesMap, service)) { + bundle_pt bundle = NULL; + hash_map_pt msgTypes = NULL; + + serviceReference_getBundle(reference, &bundle); + + if(ts->serializer != NULL && bundle!=NULL){ + ts->serializer->createSerializerMap(ts->serializer->handle,bundle,&msgTypes); + if(msgTypes != NULL){ + hashMap_put(ts->servicesMap, service, msgTypes); + printf("PSA_UDP_MC_TS: New subscriber registered.\n"); + } + } + else{ + printf("PSA_UDP_MC_TS: Cannot register new subscriber.\n"); + status = CELIX_SERVICE_EXCEPTION; + } + } + celixThreadMutex_unlock(&ts->ts_lock); + + return status; + +} + +static celix_status_t topicsub_subscriberUntracked(void * handle, service_reference_pt reference, void * service){ + celix_status_t status = CELIX_SUCCESS; + topic_subscription_pt ts = handle; + + celixThreadMutex_lock(&ts->ts_lock); + if (hashMap_containsKey(ts->servicesMap, service)) { + hash_map_pt msgTypes = hashMap_remove(ts->servicesMap, service); + if(msgTypes!=NULL && ts->serializer!=NULL){ + ts->serializer->destroySerializerMap(ts->serializer->handle,msgTypes); + printf("PSA_ZMQ_TS: Subscriber unregistered.\n"); + } + else{ + printf("PSA_ZMQ_TS: Cannot unregister subscriber.\n"); + status = CELIX_SERVICE_EXCEPTION; + } + } + celixThreadMutex_unlock(&ts->ts_lock); + + printf("PSA_UDP_MC_TS: Subscriber unregistered.\n"); + return status; +} + + +static void process_msg(topic_subscription_pt sub,pubsub_udp_msg_t *msg){ + + celixThreadMutex_lock(&sub->ts_lock); + hash_map_iterator_pt iter = hashMapIterator_create(sub->servicesMap); + while (hashMapIterator_hasNext(iter)) { + hash_map_entry_pt entry = hashMapIterator_nextEntry(iter); + pubsub_subscriber_pt subsvc = hashMapEntry_getKey(entry); + hash_map_pt msgTypes = hashMapEntry_getValue(entry); + + pubsub_msg_serializer_t *msgSer = hashMap_get(msgTypes,(void*)(uintptr_t )msg->header.type); + if (msgSer == NULL) { + printf("PSA_UDP_MC_TS: Serializer not available for message %d.\n",msg->header.type); + } + else{ + void *msgInst = NULL; + bool validVersion = checkVersion(msgSer->msgVersion,&msg->header); + + if(validVersion){ + + celix_status_t status = msgSer->deserialize(msgSer, (const void *) msg->payload, 0, &msgInst); + + if (status == CELIX_SUCCESS) { + bool release = true; + pubsub_multipart_callbacks_t mp_callbacks; + mp_callbacks.handle = sub; + mp_callbacks.localMsgTypeIdForMsgType = pubsub_localMsgTypeIdForMsgType; + mp_callbacks.getMultipart = NULL; + + subsvc->receive(subsvc->handle, msgSer->msgName, msg->header.type, msgInst, &mp_callbacks, &release); + + if(release){ + msgSer->freeMsg(msgSer,msgInst); + } + } + else{ + printf("PSA_UDP_MC_TS: Cannot deserialize msgType %s.\n",msgSer->msgName); + } + + } + else{ + int major=0,minor=0; + version_getMajor(msgSer->msgVersion,&major); + version_getMinor(msgSer->msgVersion,&minor); + printf("PSA_UDP_MC_TS: Version mismatch for primary message '%s' (have %d.%d, received %u.%u). NOT sending any part of the whole message.\n", + msgSer->msgName,major,minor,msg->header.major,msg->header.minor); + } + + } + } + hashMapIterator_destroy(iter); + celixThreadMutex_unlock(&sub->ts_lock); +} + +static void* udp_recv_thread_func(void * arg) { + topic_subscription_pt sub = (topic_subscription_pt) arg; + +#if defined(__APPLE__) && defined(__MACH__) + //TODO: use kqueue for OSX + //struct kevent events[MAX_EPOLL_EVENTS]; + while (sub->running) { + int nfds = 0; + if(nfds > 0) { + pubsub_udp_msg_t* udpMsg = NULL; + process_msg(sub, udpMsg); + } + } +#else + struct epoll_event events[MAX_EPOLL_EVENTS]; + + while (sub->running) { + int nfds = epoll_wait(sub->topicEpollFd, events, MAX_EPOLL_EVENTS, RECV_THREAD_TIMEOUT * 1000); + int i; + for(i = 0; i < nfds; i++ ) { + unsigned int index; + unsigned int size; + if(largeUdp_dataAvailable(sub->largeUdpHandle, events[i].data.fd, &index, &size) == true) { + // Handle data + pubsub_udp_msg_t *udpMsg = NULL; + if(largeUdp_read(sub->largeUdpHandle, index, (void**)&udpMsg, size) != 0) { + printf("PSA_UDP_MC_TS: ERROR largeUdp_read with index %d\n", index); + continue; + } + + process_msg(sub, udpMsg); + + free(udpMsg); + } + } + connectPendingPublishers(sub); + disconnectPendingPublishers(sub); + } +#endif + + return NULL; +} + +static void connectPendingPublishers(topic_subscription_pt sub) { + celixThreadMutex_lock(&sub->pendingConnections_lock); + while(!arrayList_isEmpty(sub->pendingConnections)) { + char * pubEP = arrayList_remove(sub->pendingConnections, 0); + pubsub_topicSubscriptionConnectPublisher(sub, pubEP); + free(pubEP); + } + celixThreadMutex_unlock(&sub->pendingConnections_lock); +} + +static void disconnectPendingPublishers(topic_subscription_pt sub) { + celixThreadMutex_lock(&sub->pendingDisconnections_lock); + while(!arrayList_isEmpty(sub->pendingDisconnections)) { + char * pubEP = arrayList_remove(sub->pendingDisconnections, 0); + pubsub_topicSubscriptionDisconnectPublisher(sub, pubEP); + free(pubEP); + } + celixThreadMutex_unlock(&sub->pendingDisconnections_lock); +} + +static void sigusr1_sighandler(int signo){ + printf("PSA_UDP_MC_TS: Topic subscription being shut down...\n"); + return; +} + +static bool checkVersion(version_pt msgVersion,pubsub_msg_header_pt hdr){ + bool check=false; + int major=0,minor=0; + + if(msgVersion!=NULL){ + version_getMajor(msgVersion,&major); + version_getMinor(msgVersion,&minor); + if(hdr->major==((unsigned char)major)){ /* Different major means incompatible */ + check = (hdr->minor>=((unsigned char)minor)); /* Compatible only if the provider has a minor equals or greater (means compatible update) */ + } + } + + return check; +} + +static int pubsub_localMsgTypeIdForMsgType(void* handle, const char* msgType, unsigned int* msgTypeId){ + *msgTypeId = utils_stringHash(msgType); + return 0; +} http://git-wip-us.apache.org/repos/asf/celix/blob/2a670f26/pubsub/pubsub_admin_udp_mc/src/topic_subscription.h ---------------------------------------------------------------------- diff --git a/pubsub/pubsub_admin_udp_mc/src/topic_subscription.h b/pubsub/pubsub_admin_udp_mc/src/topic_subscription.h new file mode 100644 index 0000000..475416a --- /dev/null +++ b/pubsub/pubsub_admin_udp_mc/src/topic_subscription.h @@ -0,0 +1,60 @@ +/** + *Licensed to the Apache Software Foundation (ASF) under one + *or more contributor license agreements. See the NOTICE file + *distributed with this work for additional information + *regarding copyright ownership. The ASF licenses this file + *to you under the Apache License, Version 2.0 (the + *"License"); you may not use this file except in compliance + *with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + *Unless required by applicable law or agreed to in writing, + *software distributed under the License is distributed on an + *"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + *specific language governing permissions and limitations + *under the License. + */ +/* + * topic_subscription.h + * + * \date Sep 22, 2015 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#ifndef TOPIC_SUBSCRIPTION_H_ +#define TOPIC_SUBSCRIPTION_H_ + +#include "celix_threads.h" +#include "array_list.h" +#include "celixbool.h" +#include "service_tracker.h" + +#include "pubsub_endpoint.h" +#include "pubsub_common.h" +#include "pubsub_serializer.h" + +typedef struct topic_subscription* topic_subscription_pt; + +celix_status_t pubsub_topicSubscriptionCreate(bundle_context_pt bundle_context, char* ifIp,char* scope, char* topic ,pubsub_serializer_service_t *best_serializer, topic_subscription_pt* out); +celix_status_t pubsub_topicSubscriptionDestroy(topic_subscription_pt ts); +celix_status_t pubsub_topicSubscriptionStart(topic_subscription_pt ts); +celix_status_t pubsub_topicSubscriptionStop(topic_subscription_pt ts); + +celix_status_t pubsub_topicSubscriptionAddConnectPublisherToPendingList(topic_subscription_pt ts, char* pubURL); +celix_status_t pubsub_topicSubscriptionAddDisconnectPublisherToPendingList(topic_subscription_pt ts, char* pubURL); + +celix_status_t pubsub_topicSubscriptionConnectPublisher(topic_subscription_pt ts, char* pubURL); +celix_status_t pubsub_topicSubscriptionDisconnectPublisher(topic_subscription_pt ts, char* pubURL); + +celix_status_t pubsub_topicSubscriptionAddSubscriber(topic_subscription_pt ts, pubsub_endpoint_pt subEP); +celix_status_t pubsub_topicSubscriptionRemoveSubscriber(topic_subscription_pt ts, pubsub_endpoint_pt subEP); + +array_list_pt pubsub_topicSubscriptionGetSubscribersList(topic_subscription_pt sub); +celix_status_t pubsub_topicIncreaseNrSubscribers(topic_subscription_pt subscription); +celix_status_t pubsub_topicDecreaseNrSubscribers(topic_subscription_pt subscription); +unsigned int pubsub_topicGetNrSubscribers(topic_subscription_pt subscription); + +#endif /*TOPIC_SUBSCRIPTION_H_ */ http://git-wip-us.apache.org/repos/asf/celix/blob/2a670f26/pubsub/pubsub_admin_zmq/CMakeLists.txt ---------------------------------------------------------------------- diff --git a/pubsub/pubsub_admin_zmq/CMakeLists.txt b/pubsub/pubsub_admin_zmq/CMakeLists.txt index ab250f9..d71aedb 100644 --- a/pubsub/pubsub_admin_zmq/CMakeLists.txt +++ b/pubsub/pubsub_admin_zmq/CMakeLists.txt @@ -50,14 +50,15 @@ if (BUILD_PUBSUB_PSA_ZMQ) private/src/topic_subscription.c private/src/topic_publication.c ${ZMQ_CRYPTO_C} - ${PROJECT_SOURCE_DIR}/log_service/public/src/log_helper.c ${PROJECT_SOURCE_DIR}/pubsub/pubsub_common/public/src/pubsub_endpoint.c ${PROJECT_SOURCE_DIR}/pubsub/pubsub_common/public/src/pubsub_utils.c ${PROJECT_SOURCE_DIR}/pubsub/pubsub_common/public/src/pubsub_admin_match.c ) set_target_properties(org.apache.celix.pubsub_admin.PubSubAdminZmq PROPERTIES INSTALL_RPATH "$ORIGIN") - target_link_libraries(org.apache.celix.pubsub_admin.PubSubAdminZmq celix_framework celix_utils celix_dfi ${ZMQ_LIBRARIES} ${CZMQ_LIBRARIES} ${OPENSSL_CRYPTO_LIBRARY}) + target_link_libraries(org.apache.celix.pubsub_admin.PubSubAdminZmq PRIVATE + Celix::framework Celix::dfi Celix::log_helper + ${ZMQ_LIBRARIES} ${CZMQ_LIBRARIES} ${OPENSSL_CRYPTO_LIBRARY}) install_bundle(org.apache.celix.pubsub_admin.PubSubAdminZmq) endif()
