http://git-wip-us.apache.org/repos/asf/celix/blob/a1c30887/dependency_manager/src/dm_component_impl.c ---------------------------------------------------------------------- diff --git a/dependency_manager/src/dm_component_impl.c b/dependency_manager/src/dm_component_impl.c new file mode 100644 index 0000000..13a2ee0 --- /dev/null +++ b/dependency_manager/src/dm_component_impl.c @@ -0,0 +1,1442 @@ +/** + *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. + */ +/* + * dm_component_impl.c + * + * \date 9 Oct 2014 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> + +#include "constants.h" +#include "filter.h" +#include "dm_component_impl.h" + + +typedef struct dm_executor_struct * dm_executor_pt; + +struct dm_component_struct { + char id[DM_COMPONENT_MAX_ID_LENGTH]; + char name[DM_COMPONENT_MAX_NAME_LENGTH]; + bundle_context_pt context; + array_list_pt dm_interfaces; + + void* implementation; + + init_fpt callbackInit; + start_fpt callbackStart; + stop_fpt callbackStop; + deinit_fpt callbackDeinit; + + array_list_pt dependencies; //protected by mutex + pthread_mutex_t mutex; + + dm_component_state_t state; + bool isStarted; + bool active; + + bool setCLanguageProperty; + + hash_map_pt dependencyEvents; //protected by mutex + + dm_executor_pt executor; +}; + +typedef struct dm_interface_struct { + char* serviceName; + const void* service; + properties_pt properties; + service_registration_pt registration; +} dm_interface_t; + +struct dm_executor_struct { + pthread_t runningThread; + bool runningThreadSet; + linked_list_pt workQueue; + pthread_mutex_t mutex; +}; + +typedef struct dm_executor_task_struct { + dm_component_pt component; + void (*command)(void *command_ptr, void *data); + void *data; +} dm_executor_task_t; + +typedef struct dm_handle_event_type_struct { + dm_service_dependency_pt dependency; + dm_event_pt event; + dm_event_pt newEvent; +} *dm_handle_event_type_pt; + +static celix_status_t executor_runTasks(dm_executor_pt executor, pthread_t currentThread __attribute__((unused))); +static celix_status_t executor_execute(dm_executor_pt executor); +static celix_status_t executor_executeTask(dm_executor_pt executor, dm_component_pt component, void (*command), void *data); +static celix_status_t executor_schedule(dm_executor_pt executor, dm_component_pt component, void (*command), void *data); +static celix_status_t executor_create(dm_component_pt component __attribute__((unused)), dm_executor_pt *executor); +static void executor_destroy(dm_executor_pt executor); + +static celix_status_t component_invokeRemoveRequiredDependencies(dm_component_pt component); +static celix_status_t component_invokeRemoveInstanceBoundDependencies(dm_component_pt component); +static celix_status_t component_invokeRemoveOptionalDependencies(dm_component_pt component); +static celix_status_t component_registerServices(dm_component_pt component); +static celix_status_t component_unregisterServices(dm_component_pt component); +static celix_status_t component_invokeAddOptionalDependencies(dm_component_pt component); +static celix_status_t component_invokeAddRequiredInstanceBoundDependencies(dm_component_pt component); +static celix_status_t component_invokeAddRequiredDependencies(dm_component_pt component); +static celix_status_t component_invokeAutoConfigInstanceBoundDependencies(dm_component_pt component); +static celix_status_t component_invokeAutoConfigDependencies(dm_component_pt component); +static celix_status_t component_configureImplementation(dm_component_pt component, dm_service_dependency_pt dependency); +static celix_status_t component_allInstanceBoundAvailable(dm_component_pt component, bool *available); +static celix_status_t component_allRequiredAvailable(dm_component_pt component, bool *available); +static celix_status_t component_performTransition(dm_component_pt component, dm_component_state_t oldState, dm_component_state_t newState, bool *transition); +static celix_status_t component_calculateNewState(dm_component_pt component, dm_component_state_t currentState, dm_component_state_t *newState); +static celix_status_t component_handleChange(dm_component_pt component); +static celix_status_t component_startDependencies(dm_component_pt component __attribute__((unused)), array_list_pt dependencies); +static celix_status_t component_getDependencyEvent(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt *event_pptr); +static celix_status_t component_updateInstance(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event, bool update, bool add); + +static celix_status_t component_addTask(dm_component_pt component, dm_service_dependency_pt dep); +static celix_status_t component_startTask(dm_component_pt component, void * data __attribute__((unused))); +static celix_status_t component_stopTask(dm_component_pt component, void * data __attribute__((unused))); +static celix_status_t component_removeTask(dm_component_pt component, dm_service_dependency_pt dependency); +static celix_status_t component_handleEventTask(dm_component_pt component, dm_handle_event_type_pt data); + +static celix_status_t component_handleAdded(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event); +static celix_status_t component_handleChanged(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event); +static celix_status_t component_handleRemoved(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event); +static celix_status_t component_handleSwapped(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event, dm_event_pt newEvent); + +static celix_status_t component_suspend(dm_component_pt component, dm_service_dependency_pt dependency); +static celix_status_t component_resume(dm_component_pt component, dm_service_dependency_pt dependency); + +celix_status_t component_create(bundle_context_pt context, const char *name, dm_component_pt *out) { + celix_status_t status = CELIX_SUCCESS; + + dm_component_pt component = calloc(1, sizeof(*component)); + + if (!component) { + status = CELIX_ENOMEM; + } else { + snprintf(component->id, DM_COMPONENT_MAX_ID_LENGTH, "%p", component); + snprintf(component->name, DM_COMPONENT_MAX_NAME_LENGTH, "%s", name == NULL ? "n/a" : name); + + component->context = context; + + arrayList_create(&component->dm_interfaces); + arrayList_create(&(component)->dependencies); + pthread_mutex_init(&(component)->mutex, NULL); + + component->implementation = NULL; + + component->callbackInit = NULL; + component->callbackStart = NULL; + component->callbackStop = NULL; + component->callbackDeinit = NULL; + + component->state = DM_CMP_STATE_INACTIVE; + component->isStarted = false; + component->active = false; + + component->setCLanguageProperty = false; + + component->dependencyEvents = hashMap_create(NULL, NULL, NULL, NULL); + + component->executor = NULL; + executor_create(component, &component->executor); + } + + if (status == CELIX_SUCCESS) { + *out = component; + } + + return status; +} + +void component_destroy(dm_component_pt component) { + if (component) { + unsigned int i; + + for (i = 0; i < arrayList_size(component->dm_interfaces); i++) { + dm_interface_t *interface = arrayList_get(component->dm_interfaces, i); + + if(interface->properties!=NULL){ + properties_destroy(interface->properties); + } + free (interface->serviceName); + free (interface); + } + arrayList_destroy(component->dm_interfaces); + + executor_destroy(component->executor); + + hash_map_iterator_pt iter = hashMapIterator_create(component->dependencyEvents); + while(hashMapIterator_hasNext(iter)){ + hash_map_entry_pt entry = hashMapIterator_nextEntry(iter); + dm_service_dependency_pt sdep = (dm_service_dependency_pt)hashMapEntry_getKey(entry); + array_list_pt eventList = (array_list_pt)hashMapEntry_getValue(entry); + serviceDependency_destroy(&sdep); + arrayList_destroy(eventList); + } + hashMapIterator_destroy(iter); + + hashMap_destroy(component->dependencyEvents, false, false); + + arrayList_destroy(component->dependencies); + pthread_mutex_destroy(&component->mutex); + + free(component); + } +} + +celix_status_t component_addServiceDependency(dm_component_pt component, dm_service_dependency_pt dep) { + celix_status_t status = CELIX_SUCCESS; + + executor_executeTask(component->executor, component, component_addTask, dep); + + return status; +} + + +static celix_status_t component_addTask(dm_component_pt component, dm_service_dependency_pt dep) { + celix_status_t status = CELIX_SUCCESS; + + array_list_pt bounds = NULL; + arrayList_create(&bounds); + + array_list_pt events = NULL; + arrayList_createWithEquals(event_equals, &events); + + pthread_mutex_lock(&component->mutex); + hashMap_put(component->dependencyEvents, dep, events); + arrayList_add(component->dependencies, dep); + pthread_mutex_unlock(&component->mutex); + + serviceDependency_setComponent(dep, component); + + if (component->state != DM_CMP_STATE_INACTIVE) { + serviceDependency_setInstanceBound(dep, true); + arrayList_add(bounds, dep); + } + component_startDependencies(component, bounds); + component_handleChange(component); + + arrayList_destroy(bounds); + + return status; +} + +dm_component_state_t component_currentState(dm_component_pt cmp) { + return cmp->state; +} + +void * component_getImplementation(dm_component_pt cmp) { + return cmp->implementation; +} + +const char * component_getName(dm_component_pt cmp) { + return cmp->name; +} + +celix_status_t component_removeServiceDependency(dm_component_pt component, dm_service_dependency_pt dependency) { + celix_status_t status = CELIX_SUCCESS; + + executor_executeTask(component->executor, component, component_removeTask, dependency); + + return status; +} + +celix_status_t component_removeTask(dm_component_pt component, dm_service_dependency_pt dependency) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + arrayList_removeElement(component->dependencies, dependency); + pthread_mutex_unlock(&component->mutex); + + if (component->state != DM_CMP_STATE_INACTIVE) { + serviceDependency_stop(dependency); + } + + pthread_mutex_lock(&component->mutex); + array_list_pt events = hashMap_remove(component->dependencyEvents, dependency); + pthread_mutex_unlock(&component->mutex); + + serviceDependency_destroy(&dependency); + + while (!arrayList_isEmpty(events)) { + dm_event_pt event = arrayList_remove(events, 0); + event_destroy(&event); + } + arrayList_destroy(events); + + component_handleChange(component); + + return status; +} + +celix_status_t component_start(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + component->active = true; + executor_executeTask(component->executor, component, component_startTask, NULL); + + return status; +} + +celix_status_t component_startTask(dm_component_pt component, void *data __attribute__((unused))) { + celix_status_t status = CELIX_SUCCESS; + + component->isStarted = true; + component_handleChange(component); + + return status; +} + +celix_status_t component_stop(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + component->active = false; + executor_executeTask(component->executor, component, component_stopTask, NULL); + + return status; +} + +celix_status_t component_stopTask(dm_component_pt component, void *data __attribute__((unused))) { + celix_status_t status = CELIX_SUCCESS; + + component->isStarted = false; + component_handleChange(component); + component->active = false; + + return status; +} + +celix_status_t component_setCLanguageProperty(dm_component_pt component, bool setCLangProp) { + component->setCLanguageProperty = setCLangProp; + return CELIX_SUCCESS; +} + +celix_status_t component_addInterface(dm_component_pt component, const char* serviceName, const char* serviceVersion, const void* service, properties_pt properties) { + celix_status_t status = CELIX_SUCCESS; + + if (component->active) { + return CELIX_ILLEGAL_STATE; + } else { + dm_interface_t *interface = (dm_interface_t *) calloc(1, sizeof(*interface)); + char *name = strdup(serviceName); + + if (properties == NULL) { + properties = properties_create(); + } + + if ((properties_get(properties, CELIX_FRAMEWORK_SERVICE_VERSION) == NULL) && (serviceVersion != NULL)) { + properties_set(properties, CELIX_FRAMEWORK_SERVICE_VERSION, serviceVersion); + } + + if (component->setCLanguageProperty && properties_get(properties, CELIX_FRAMEWORK_SERVICE_LANGUAGE) == NULL) { //always set default lang to C + properties_set(properties, CELIX_FRAMEWORK_SERVICE_LANGUAGE, CELIX_FRAMEWORK_SERVICE_C_LANGUAGE); + } + + if (interface && name) { + interface->serviceName = name; + interface->service = service; + interface->properties = properties; + interface->registration = NULL; + arrayList_add(component->dm_interfaces, interface); + } else { + free(interface); + free(name); + status = CELIX_ENOMEM; + } + } + + return status; +} + +celix_status_t component_getInterfaces(dm_component_pt component, array_list_pt *out) { + celix_status_t status = CELIX_SUCCESS; + array_list_pt names = NULL; + arrayList_create(&names); + celixThreadMutex_lock(&component->mutex); + int size = arrayList_size(component->dm_interfaces); + int i; + for (i = 0; i < size; i += 1) { + dm_interface_info_pt info = calloc(1, sizeof(*info)); + dm_interface_t *interface = arrayList_get(component->dm_interfaces, i); + info->name = strdup(interface->serviceName); + properties_copy(interface->properties, &info->properties); + arrayList_add(names, info); + } + celixThreadMutex_unlock(&component->mutex); + + if (status == CELIX_SUCCESS) { + *out = names; + } + + return status; +} + +celix_status_t component_handleEvent(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event) { + celix_status_t status = CELIX_SUCCESS; + + dm_handle_event_type_pt data = calloc(1, sizeof(*data)); + data->dependency = dependency; + data->event = event; + data->newEvent = NULL; + + status = executor_executeTask(component->executor, component, component_handleEventTask, data); +// component_handleEventTask(component, data); + + return status; +} + +celix_status_t component_handleEventTask(dm_component_pt component, dm_handle_event_type_pt data) { + celix_status_t status = CELIX_SUCCESS; + + switch (data->event->event_type) { + case DM_EVENT_ADDED: + component_handleAdded(component,data->dependency, data->event); + break; + case DM_EVENT_CHANGED: + component_handleChanged(component,data->dependency, data->event); + break; + case DM_EVENT_REMOVED: + component_handleRemoved(component,data->dependency, data->event); + break; + case DM_EVENT_SWAPPED: + component_handleSwapped(component,data->dependency, data->event, data->newEvent); + break; + default: + break; + } + + free(data); + + return status; +} + +static celix_status_t component_suspend(dm_component_pt component, dm_service_dependency_pt dependency) { + celix_status_t status = CELIX_SUCCESS; + + dm_service_dependency_strategy_t strategy; + serviceDependency_getStrategy(dependency, &strategy); + if (strategy == DM_SERVICE_DEPENDENCY_STRATEGY_SUSPEND && component->callbackStop != NULL) { + status = component->callbackStop(component->implementation); + } + + return status; +} + +static celix_status_t component_resume(dm_component_pt component, dm_service_dependency_pt dependency) { + celix_status_t status = CELIX_SUCCESS; + + dm_service_dependency_strategy_t strategy; + serviceDependency_getStrategy(dependency, &strategy); + if (strategy == DM_SERVICE_DEPENDENCY_STRATEGY_SUSPEND && component->callbackStop != NULL) { + status = component->callbackStart(component->implementation); + } + + return status; +} + +celix_status_t component_handleAdded(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + arrayList_add(events, event); + pthread_mutex_unlock(&component->mutex); + + serviceDependency_setAvailable(dependency, true); + + switch (component->state) { + case DM_CMP_STATE_WAITING_FOR_REQUIRED: { + serviceDependency_invokeSet(dependency, event); + bool required = false; + serviceDependency_isRequired(dependency, &required); + if (required) { + component_handleChange(component); + } + break; + } + case DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED: { + bool instanceBound = false; + serviceDependency_isInstanceBound(dependency, &instanceBound); + bool required = false; + serviceDependency_isRequired(dependency, &required); + if (!instanceBound) { + if (required) { + serviceDependency_invokeSet(dependency, event); + serviceDependency_invokeAdd(dependency, event); + } + dm_event_pt event = NULL; + component_getDependencyEvent(component, dependency, &event); + component_updateInstance(component, dependency, event, false, true); + } + + if (required) { + component_handleChange(component); + } + break; + } + case DM_CMP_STATE_TRACKING_OPTIONAL: + component_suspend(component,dependency); + serviceDependency_invokeSet(dependency, event); + serviceDependency_invokeAdd(dependency, event); + component_resume(component,dependency); + dm_event_pt event = NULL; + component_getDependencyEvent(component, dependency, &event); + component_updateInstance(component, dependency, event, false, true); + break; + default: + break; + } + + return status; +} + +celix_status_t component_handleChanged(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + int index = arrayList_indexOf(events, event); + if (index < 0) { + pthread_mutex_unlock(&component->mutex); + status = CELIX_BUNDLE_EXCEPTION; + } else { + dm_event_pt old = arrayList_remove(events, (unsigned int) index); + arrayList_add(events, event); + pthread_mutex_unlock(&component->mutex); + + serviceDependency_invokeSet(dependency, event); + switch (component->state) { + case DM_CMP_STATE_TRACKING_OPTIONAL: + component_suspend(component,dependency); + serviceDependency_invokeChange(dependency, event); + component_resume(component,dependency); + dm_event_pt hevent = NULL; + component_getDependencyEvent(component, dependency, &hevent); + component_updateInstance(component, dependency, hevent, true, false); + break; + case DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED: { + bool instanceBound = false; + serviceDependency_isInstanceBound(dependency, &instanceBound); + if (!instanceBound) { + serviceDependency_invokeChange(dependency, event); + dm_event_pt hevent = NULL; + component_getDependencyEvent(component, dependency, &hevent); + component_updateInstance(component, dependency, hevent, true, false); + } + break; + } + default: + break; + } + + event_destroy(&old); + } + + return status; +} + +celix_status_t component_handleRemoved(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + int size = arrayList_size(events); + if (arrayList_contains(events, event)) { + size--; + } + pthread_mutex_unlock(&component->mutex); + serviceDependency_setAvailable(dependency, size > 0); + component_handleChange(component); + + pthread_mutex_lock(&component->mutex); + int index = arrayList_indexOf(events, event); + if (index < 0) { + pthread_mutex_unlock(&component->mutex); + status = CELIX_BUNDLE_EXCEPTION; + } else { + dm_event_pt old = arrayList_remove(events, (unsigned int) index); + pthread_mutex_unlock(&component->mutex); + + + switch (component->state) { + case DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED: { + serviceDependency_invokeSet(dependency, event); + bool instanceBound = false; + serviceDependency_isInstanceBound(dependency, &instanceBound); + if (!instanceBound) { + bool required = false; + serviceDependency_isRequired(dependency, &required); + if (required) { + serviceDependency_invokeRemove(dependency, event); + } + dm_event_pt hevent = NULL; + component_getDependencyEvent(component, dependency, &hevent); + component_updateInstance(component, dependency, hevent, false, false); + } + break; + } + case DM_CMP_STATE_TRACKING_OPTIONAL: + component_suspend(component,dependency); + serviceDependency_invokeSet(dependency, event); + serviceDependency_invokeRemove(dependency, event); + component_resume(component,dependency); + dm_event_pt hevent = NULL; + component_getDependencyEvent(component, dependency, &hevent); + component_updateInstance(component, dependency, hevent, false, false); + break; + default: + break; + } + + event_destroy(&event); + if (old) { + event_destroy(&old); + } + } + + return status; +} + +celix_status_t component_handleSwapped(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event, dm_event_pt newEvent) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + int index = arrayList_indexOf(events, event); + if (index < 0) { + pthread_mutex_unlock(&component->mutex); + status = CELIX_BUNDLE_EXCEPTION; + } else { + dm_event_pt old = arrayList_remove(events, (unsigned int) index); + arrayList_add(events, newEvent); + pthread_mutex_unlock(&component->mutex); + + serviceDependency_invokeSet(dependency, event); + + switch (component->state) { + case DM_CMP_STATE_WAITING_FOR_REQUIRED: + break; + case DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED: { + bool instanceBound = false; + serviceDependency_isInstanceBound(dependency, &instanceBound); + if (!instanceBound) { + bool required = false; + serviceDependency_isRequired(dependency, &required); + if (required) { + serviceDependency_invokeSwap(dependency, event, newEvent); + } + } + break; + } + case DM_CMP_STATE_TRACKING_OPTIONAL: + component_suspend(component,dependency); + serviceDependency_invokeSwap(dependency, event, newEvent); + component_resume(component,dependency); + break; + default: + break; + } + + event_destroy(&event); + if (old) { + event_destroy(&old); + } + } + + return status; +} + +celix_status_t component_updateInstance(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event, bool update, bool add) { + celix_status_t status = CELIX_SUCCESS; + + bool autoConfig = false; + + serviceDependency_isAutoConfig(dependency, &autoConfig); + + if (autoConfig) { + const void *service = NULL; + const void **field = NULL; + + if (event != NULL) { + event_getService(event, &service); + } + serviceDependency_getAutoConfig(dependency, &field); + serviceDependency_lock(dependency); + *field = service; + serviceDependency_unlock(dependency); + } + + return status; +} + +celix_status_t component_startDependencies(dm_component_pt component __attribute__((unused)), array_list_pt dependencies) { + celix_status_t status = CELIX_SUCCESS; + array_list_pt required_dependencies = NULL; + arrayList_create(&required_dependencies); + + for (unsigned int i = 0; i < arrayList_size(dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(dependencies, i); + bool required = false; + serviceDependency_isRequired(dependency, &required); + if (required) { + arrayList_add(required_dependencies, dependency); + continue; + } + + serviceDependency_start(dependency); + } + + for (unsigned int i = 0; i < arrayList_size(required_dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(required_dependencies, i); + serviceDependency_start(dependency); + } + + arrayList_destroy(required_dependencies); + + return status; +} + +celix_status_t component_stopDependencies(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + pthread_mutex_unlock(&component->mutex); + serviceDependency_stop(dependency); + pthread_mutex_lock(&component->mutex); + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_handleChange(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + dm_component_state_t oldState; + dm_component_state_t newState; + + bool transition = false; + do { + oldState = component->state; + status = component_calculateNewState(component, oldState, &newState); + if (status == CELIX_SUCCESS) { + component->state = newState; + status = component_performTransition(component, oldState, newState, &transition); + } + + if (status != CELIX_SUCCESS) { + break; + } + } while (transition); + + return status; +} + +celix_status_t component_calculateNewState(dm_component_pt component, dm_component_state_t currentState, dm_component_state_t *newState) { + celix_status_t status = CELIX_SUCCESS; + + if (currentState == DM_CMP_STATE_INACTIVE) { + if (component->isStarted) { + *newState = DM_CMP_STATE_WAITING_FOR_REQUIRED; + } else { + *newState = currentState; + } + } else if (currentState == DM_CMP_STATE_WAITING_FOR_REQUIRED) { + if (!component->isStarted) { + *newState = DM_CMP_STATE_INACTIVE; + } else { + bool available = false; + component_allRequiredAvailable(component, &available); + + if (available) { + *newState = DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED; + } else { + *newState = currentState; + } + } + } else if (currentState == DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED) { + if (!component->isStarted) { + *newState = DM_CMP_STATE_WAITING_FOR_REQUIRED; + } else { + bool available = false; + component_allRequiredAvailable(component, &available); + + if (available) { + bool instanceBoundAvailable = false; + component_allInstanceBoundAvailable(component, &instanceBoundAvailable); + + if (instanceBoundAvailable) { + *newState = DM_CMP_STATE_TRACKING_OPTIONAL; + } else { + *newState = currentState; + } + } else { + *newState = currentState; + } + } + } else if (currentState == DM_CMP_STATE_TRACKING_OPTIONAL) { + bool instanceBoundAvailable = false; + bool available = false; + + component_allInstanceBoundAvailable(component, &instanceBoundAvailable); + component_allRequiredAvailable(component, &available); + + if (component->isStarted && available && instanceBoundAvailable) { + *newState = currentState; + } else { + *newState = DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED; + } + } else { + //should not reach + *newState = DM_CMP_STATE_INACTIVE; + status = CELIX_BUNDLE_EXCEPTION; + } + + return status; +} + +celix_status_t component_performTransition(dm_component_pt component, dm_component_state_t oldState, dm_component_state_t newState, bool *transition) { + celix_status_t status = CELIX_SUCCESS; + //printf("performing transition for %s in thread %i from %i to %i\n", component->name, (int) pthread_self(), oldState, newState); + + if (oldState == newState) { + *transition = false; + } else if (oldState == DM_CMP_STATE_INACTIVE && newState == DM_CMP_STATE_WAITING_FOR_REQUIRED) { + component_startDependencies(component, component->dependencies); + *transition = true; + } else if (oldState == DM_CMP_STATE_WAITING_FOR_REQUIRED && newState == DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED) { + component_invokeAddRequiredDependencies(component); + component_invokeAutoConfigDependencies(component); + if (component->callbackInit) { + status = component->callbackInit(component->implementation); + } + *transition = true; + } else if (oldState == DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED && newState == DM_CMP_STATE_TRACKING_OPTIONAL) { + component_invokeAddRequiredInstanceBoundDependencies(component); + component_invokeAutoConfigInstanceBoundDependencies(component); + component_invokeAddOptionalDependencies(component); + if (component->callbackStart) { + status = component->callbackStart(component->implementation); + } + component_registerServices(component); + *transition = true; + } else if (oldState == DM_CMP_STATE_TRACKING_OPTIONAL && newState == DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED) { + component_unregisterServices(component); + if (component->callbackStop) { + status = component->callbackStop(component->implementation); + } + component_invokeRemoveOptionalDependencies(component); + component_invokeRemoveInstanceBoundDependencies(component); + *transition = true; + } else if (oldState == DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED && newState == DM_CMP_STATE_WAITING_FOR_REQUIRED) { + if (component->callbackDeinit) { + status = component->callbackDeinit(component->implementation); + } + component_invokeRemoveRequiredDependencies(component); + *transition = true; + } else if (oldState == DM_CMP_STATE_WAITING_FOR_REQUIRED && newState == DM_CMP_STATE_INACTIVE) { + component_stopDependencies(component); + *transition = true; + } + + return status; +} + +celix_status_t component_allRequiredAvailable(dm_component_pt component, bool *available) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + *available = true; + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + bool required = false; + bool instanceBound = false; + + serviceDependency_isRequired(dependency, &required); + serviceDependency_isInstanceBound(dependency, &instanceBound); + + if (required && !instanceBound) { + bool isAvailable = false; + serviceDependency_isAvailable(dependency, &isAvailable); + if (!isAvailable) { + *available = false; + break; + } + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_allInstanceBoundAvailable(dm_component_pt component, bool *available) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + *available = true; + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + bool required = false; + bool instanceBound = false; + + serviceDependency_isRequired(dependency, &required); + serviceDependency_isInstanceBound(dependency, &instanceBound); + + if (required && instanceBound) { + bool isAvailable = false; + serviceDependency_isAvailable(dependency, &isAvailable); + if (!isAvailable) { + *available = false; + break; + } + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_invokeAddRequiredDependencies(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + + bool required = false; + bool instanceBound = false; + + serviceDependency_isRequired(dependency, &required); + serviceDependency_isInstanceBound(dependency, &instanceBound); + + if (required && !instanceBound) { + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + if (events) { + for (unsigned int j = 0; j < arrayList_size(events); j++) { + dm_event_pt event = arrayList_get(events, j); + serviceDependency_invokeAdd(dependency, event); + } + } + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_invokeAutoConfigDependencies(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + + bool autoConfig = false; + bool instanceBound = false; + + serviceDependency_isAutoConfig(dependency, &autoConfig); + serviceDependency_isInstanceBound(dependency, &instanceBound); + + if (autoConfig && !instanceBound) { + component_configureImplementation(component, dependency); + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_invokeAutoConfigInstanceBoundDependencies(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + + bool autoConfig = false; + bool instanceBound = false; + + serviceDependency_isAutoConfig(dependency, &autoConfig); + serviceDependency_isInstanceBound(dependency, &instanceBound); + + if (autoConfig && instanceBound) { + component_configureImplementation(component, dependency); + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_invokeAddRequiredInstanceBoundDependencies(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + + bool required = false; + bool instanceBound = false; + + serviceDependency_isRequired(dependency, &required); + serviceDependency_isInstanceBound(dependency, &instanceBound); + + if (instanceBound && required) { + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + if (events) { + for (unsigned int j = 0; j < arrayList_size(events); j++) { + dm_event_pt event = arrayList_get(events, j); + serviceDependency_invokeAdd(dependency, event); + } + } + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_invokeAddOptionalDependencies(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + + bool required = false; + + serviceDependency_isRequired(dependency, &required); + + if (!required) { + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + if (events) { + for (unsigned int j = 0; j < arrayList_size(events); j++) { + dm_event_pt event = arrayList_get(events, j); + serviceDependency_invokeAdd(dependency, event); + } + } + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_invokeRemoveOptionalDependencies(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + + bool required = false; + + serviceDependency_isRequired(dependency, &required); + + if (!required) { + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + if (events) { + for (unsigned int j = 0; j < arrayList_size(events); j++) { + dm_event_pt event = arrayList_get(events, j); + serviceDependency_invokeRemove(dependency, event); + } + } + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_invokeRemoveInstanceBoundDependencies(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + + bool instanceBound = false; + + serviceDependency_isInstanceBound(dependency, &instanceBound); + + if (instanceBound) { + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + if (events) { + for (unsigned int j = 0; j < arrayList_size(events); j++) { + dm_event_pt event = arrayList_get(events, j); + serviceDependency_invokeRemove(dependency, event); + } + } + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_invokeRemoveRequiredDependencies(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + pthread_mutex_lock(&component->mutex); + for (unsigned int i = 0; i < arrayList_size(component->dependencies); i++) { + dm_service_dependency_pt dependency = arrayList_get(component->dependencies, i); + + bool required = false; + bool instanceBound = false; + + serviceDependency_isRequired(dependency, &required); + serviceDependency_isInstanceBound(dependency, &instanceBound); + + if (!instanceBound && required) { + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + if (events) { + for (unsigned int j = 0; j < arrayList_size(events); j++) { + dm_event_pt event = arrayList_get(events, j); + serviceDependency_invokeRemove(dependency, event); + } + } + } + } + pthread_mutex_unlock(&component->mutex); + + return status; +} + +celix_status_t component_getDependencyEvent(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt *event_pptr) { + celix_status_t status = CELIX_SUCCESS; + + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + *event_pptr = NULL; + + if (events) { + for (unsigned int j = 0; j < arrayList_size(events); j++) { + dm_event_pt event_ptr = arrayList_get(events, j); + if (*event_pptr != NULL) { + int compare = 0; + event_compareTo(event_ptr, *event_pptr, &compare); + if (compare > 0) { + *event_pptr = event_ptr; + } + } else { + *event_pptr = event_ptr; + } + } + } + + return status; +} + +celix_status_t component_configureImplementation(dm_component_pt component, dm_service_dependency_pt dependency) { + celix_status_t status = CELIX_SUCCESS; + + const void **field = NULL; + + array_list_pt events = hashMap_get(component->dependencyEvents, dependency); + if (events) { + const void *service = NULL; + dm_event_pt event = NULL; + component_getDependencyEvent(component, dependency, &event); + if (event != NULL) { + event_getService(event, &service); + serviceDependency_getAutoConfig(dependency, &field); + serviceDependency_lock(dependency); + *field = service; + serviceDependency_unlock(dependency); + } + } + + return status; +} + +celix_status_t component_registerServices(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + if (component->context != NULL) { + unsigned int i; + for (i = 0; i < arrayList_size(component->dm_interfaces); i++) { + dm_interface_t *interface = arrayList_get(component->dm_interfaces, i); + properties_pt regProps = NULL; + properties_copy(interface->properties, ®Props); + bundleContext_registerService(component->context, interface->serviceName, interface->service, regProps, &interface->registration); + } + } + + return status; +} + +celix_status_t component_unregisterServices(dm_component_pt component) { + celix_status_t status = CELIX_SUCCESS; + + unsigned int i; + + for (i = 0; i < arrayList_size(component->dm_interfaces); i++) { + dm_interface_t *interface = arrayList_get(component->dm_interfaces, i); + + serviceRegistration_unregister(interface->registration); + interface->registration = NULL; + } + + return status; +} + +celix_status_t component_setCallbacks(dm_component_pt component, init_fpt init, start_fpt start, stop_fpt stop, deinit_fpt deinit) { + if (component->active) { + return CELIX_ILLEGAL_STATE; + } + component->callbackInit = init; + component->callbackStart = start; + component->callbackStop = stop; + component->callbackDeinit = deinit; + return CELIX_SUCCESS; +} + +celix_status_t component_isAvailable(dm_component_pt component, bool *available) { + *available = component->state == DM_CMP_STATE_TRACKING_OPTIONAL; + return CELIX_SUCCESS; +} + +celix_status_t component_setImplementation(dm_component_pt component, void *implementation) { + component->implementation = implementation; + return CELIX_SUCCESS; +} + +celix_status_t component_getBundleContext(dm_component_pt component, bundle_context_pt *context) { + celix_status_t status = CELIX_SUCCESS; + + if (!component) { + status = CELIX_ILLEGAL_ARGUMENT; + } + + if (status == CELIX_SUCCESS) { + *context = component->context; + } + + return status; +} + + +static celix_status_t executor_create(dm_component_pt component __attribute__((unused)), dm_executor_pt *executor) { + celix_status_t status = CELIX_SUCCESS; + + *executor = malloc(sizeof(**executor)); + if (!*executor) { + status = CELIX_ENOMEM; + } else { + linkedList_create(&(*executor)->workQueue); + pthread_mutex_init(&(*executor)->mutex, NULL); + (*executor)->runningThreadSet = false; + } + + return status; +} + +static void executor_destroy(dm_executor_pt executor) { + + if (executor) { + pthread_mutex_destroy(&executor->mutex); + linkedList_destroy(executor->workQueue); + + free(executor); + } +} + +static celix_status_t executor_schedule(dm_executor_pt executor, dm_component_pt component, void (*command), void *data) { + celix_status_t status = CELIX_SUCCESS; + + dm_executor_task_t *task = NULL; + task = malloc(sizeof(*task)); + if (!task) { + status = CELIX_ENOMEM; + } else { + task->component = component; + task->command = command; + task->data = data; + + pthread_mutex_lock(&executor->mutex); + linkedList_addLast(executor->workQueue, task); + pthread_mutex_unlock(&executor->mutex); + } + + return status; +} + +static celix_status_t executor_executeTask(dm_executor_pt executor, dm_component_pt component, void (*command), void *data) { + celix_status_t status = CELIX_SUCCESS; + + // Check thread and executor thread, if the same, execute immediately. +// bool execute = false; +// pthread_mutex_lock(&executor->mutex); +// pthread_t currentThread = pthread_self(); +// if (pthread_equal(executor->runningThread, currentThread)) { +// execute = true; +// } +// pthread_mutex_unlock(&executor->mutex); + + // For now, just schedule. + executor_schedule(executor, component, command, data); + executor_execute(executor); + + return status; +} + +static celix_status_t executor_execute(dm_executor_pt executor) { + celix_status_t status = CELIX_SUCCESS; + pthread_t currentThread = pthread_self(); + + pthread_mutex_lock(&executor->mutex); + bool execute = false; + if (!executor->runningThreadSet) { + executor->runningThread = currentThread; + executor->runningThreadSet = true; + execute = true; + } + pthread_mutex_unlock(&executor->mutex); + if (execute) { + executor_runTasks(executor, currentThread); + } + + return status; +} + +static celix_status_t executor_runTasks(dm_executor_pt executor, pthread_t currentThread __attribute__((unused))) { + celix_status_t status = CELIX_SUCCESS; +// bool execute = false; + + do { + dm_executor_task_t *entry = NULL; + pthread_mutex_lock(&executor->mutex); + while ((entry = linkedList_removeFirst(executor->workQueue)) != NULL) { + pthread_mutex_unlock(&executor->mutex); + + entry->command(entry->component, entry->data); + + pthread_mutex_lock(&executor->mutex); + + free(entry); + } + executor->runningThreadSet = false; + pthread_mutex_unlock(&executor->mutex); + +// pthread_mutex_lock(&executor->mutex); +// if (executor->runningThread == NULL) { +// executor->runningThread = currentThread; +// execute = true; +// } +// pthread_mutex_unlock(&executor->mutex); + } while (!linkedList_isEmpty(executor->workQueue)); // && execute + + return status; +} + +celix_status_t component_getComponentInfo(dm_component_pt component, dm_component_info_pt *out) { + celix_status_t status = CELIX_SUCCESS; + int i; + int size; + dm_component_info_pt info = NULL; + info = calloc(1, sizeof(*info)); + + if (info == NULL) { + return CELIX_ENOMEM; + } + + arrayList_create(&info->dependency_list); + component_getInterfaces(component, &info->interfaces); + info->active = false; + memcpy(info->id, component->id, DM_COMPONENT_MAX_ID_LENGTH); + memcpy(info->name, component->name, DM_COMPONENT_MAX_NAME_LENGTH); + + switch (component->state) { + case DM_CMP_STATE_INACTIVE : + info->state = strdup("INACTIVE"); + break; + case DM_CMP_STATE_WAITING_FOR_REQUIRED : + info->state = strdup("WAITING_FOR_REQUIRED"); + break; + case DM_CMP_STATE_INSTANTIATED_AND_WAITING_FOR_REQUIRED : + info->state = strdup("INSTANTIATED_AND_WAITING_FOR_REQUIRED"); + break; + case DM_CMP_STATE_TRACKING_OPTIONAL : + info->state = strdup("TRACKING_OPTIONAL"); + info->active = true; + break; + default : + info->state = strdup("UNKNOWN"); + break; + } + + celixThreadMutex_lock(&component->mutex); + size = arrayList_size(component->dependencies); + for (i = 0; i < size; i += 1) { + dm_service_dependency_pt dep = arrayList_get(component->dependencies, i); + dm_service_dependency_info_pt depInfo = NULL; + status = serviceDependency_getServiceDependencyInfo(dep, &depInfo); + if (status == CELIX_SUCCESS) { + arrayList_add(info->dependency_list, depInfo); + } else { + break; + } + } + celixThreadMutex_unlock(&component->mutex); + + if (status == CELIX_SUCCESS) { + *out = info; + } else if (info != NULL) { + component_destroyComponentInfo(info); + } + + return status; +} + +void component_destroyComponentInfo(dm_component_info_pt info) { + int i; + int size; + if (info != NULL) { + free(info->state); + + if (info->interfaces != NULL) { + size = arrayList_size(info->interfaces); + for (i = 0; i < size; i += 1) { + dm_interface_info_pt intfInfo = arrayList_get(info->interfaces, i); + free(intfInfo->name); + properties_destroy(intfInfo->properties); + free(intfInfo); + } + arrayList_destroy(info->interfaces); + } + if (info->dependency_list != NULL) { + size = arrayList_size(info->dependency_list); + for (i = 0; i < size; i += 1) { + dm_service_dependency_info_pt depInfo = arrayList_get(info->dependency_list, i); + dependency_destroyDependencyInfo(depInfo); + } + arrayList_destroy(info->dependency_list); + } + } + free(info); +}
http://git-wip-us.apache.org/repos/asf/celix/blob/a1c30887/dependency_manager/src/dm_component_impl.h ---------------------------------------------------------------------- diff --git a/dependency_manager/src/dm_component_impl.h b/dependency_manager/src/dm_component_impl.h new file mode 100644 index 0000000..495197c --- /dev/null +++ b/dependency_manager/src/dm_component_impl.h @@ -0,0 +1,48 @@ +/** + *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. + */ +/* + * dm_component_impl.h + * + * \date 22 Feb 2014 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#ifndef COMPONENT_IMPL_H_ +#define COMPONENT_IMPL_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "dm_component.h" +#include "dm_service_dependency_impl.h" +#include "dm_event.h" + +celix_status_t component_start(dm_component_pt component); + +celix_status_t component_stop(dm_component_pt component); + +celix_status_t component_handleEvent(dm_component_pt component, dm_service_dependency_pt dependency, dm_event_pt event); + +#ifdef __cplusplus +} +#endif + +#endif /* COMPONENT_IMPL_H_ */ http://git-wip-us.apache.org/repos/asf/celix/blob/a1c30887/dependency_manager/src/dm_dependency.h ---------------------------------------------------------------------- diff --git a/dependency_manager/src/dm_dependency.h b/dependency_manager/src/dm_dependency.h new file mode 100644 index 0000000..6923239 --- /dev/null +++ b/dependency_manager/src/dm_dependency.h @@ -0,0 +1,41 @@ +/** + *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. + */ +/* + * dm_dependency.h + * + * \date 22 Feb 2014 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#ifndef DM_DEPENDENCY_H_ +#define DM_DEPENDENCY_H_ + +#ifdef __cplusplus +extern "C" { +#endif + + + + +#ifdef __cplusplus +} +#endif + +#endif /* DM_DEPENDENCY_H_ */ http://git-wip-us.apache.org/repos/asf/celix/blob/a1c30887/dependency_manager/src/dm_dependency_manager_impl.c ---------------------------------------------------------------------- diff --git a/dependency_manager/src/dm_dependency_manager_impl.c b/dependency_manager/src/dm_dependency_manager_impl.c new file mode 100644 index 0000000..4864be1 --- /dev/null +++ b/dependency_manager/src/dm_dependency_manager_impl.c @@ -0,0 +1,129 @@ +/** + * 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. + */ + +/* + * dm_dependency_manager_impl.c + * + * \date 26 Jul 2014 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + + +#include <pthread.h> +#include <stdlib.h> +#include <dm_dependency_manager.h> + +#include "bundle_context.h" +#include "dm_component_impl.h" +#include "dm_dependency_manager_impl.h" + + +celix_status_t dependencyManager_create(bundle_context_pt context __attribute__((unused)), dm_dependency_manager_pt *manager) { + celix_status_t status = CELIX_ENOMEM; + + (*manager) = calloc(1, sizeof(**manager)); + + if (*manager) { + arrayList_create(&(*manager)->components); + + status = CELIX_SUCCESS; + } + + return status; + +} + +void dependencyManager_destroy(dm_dependency_manager_pt manager) { + if (manager != NULL) { + arrayList_destroy(manager->components); + free(manager); + } +} + +celix_status_t dependencyManager_add(dm_dependency_manager_pt manager, dm_component_pt component) { + celix_status_t status; + + arrayList_add(manager->components, component); + status = component_start(component); + + return status; +} + +celix_status_t dependencyManager_removeAllComponents(dm_dependency_manager_pt manager) { + celix_status_t status = CELIX_SUCCESS; + + unsigned int i=0; + unsigned int size = arrayList_size(manager->components); + + for(;i<size;i++){ + dm_component_pt cmp = arrayList_get(manager->components, i); +// printf("Stopping comp %s\n", component_getName(cmp)); + component_stop(cmp); + } + + while (!arrayList_isEmpty(manager->components)) { + dm_component_pt cmp = arrayList_remove(manager->components, 0); +// printf("Removing comp %s\n", component_getName(cmp)); + component_destroy(cmp); + } + + return status; +} + +celix_status_t dependencyManager_getInfo(dm_dependency_manager_pt manager, dm_dependency_manager_info_pt *out) { + celix_status_t status = CELIX_SUCCESS; + int i; + int size; + dm_component_info_pt cmpInfo = NULL; + dm_dependency_manager_info_pt info = calloc(1, sizeof(*info)); + + celixThreadMutex_lock(&manager->mutex); + + if (info != NULL) { + arrayList_create(&info->components); + size = arrayList_size(manager->components); + for (i = 0; i < size; i += 1) { + dm_component_pt cmp = arrayList_get(manager->components, i); + cmpInfo = NULL; + component_getComponentInfo(cmp, &cmpInfo); + arrayList_add(info->components, cmpInfo); + } + } else { + status = CELIX_ENOMEM; + } + + celixThreadMutex_unlock(&manager->mutex); + + if (status == CELIX_SUCCESS) { + *out = info; + } + + return status; +} + +void dependencyManager_destroyInfo(dm_dependency_manager_pt manager, dm_dependency_manager_info_pt info) { + unsigned int i = 0; + for (; i < arrayList_size(info->components); i += 1) { + dm_component_info_pt cmpinfo = (dm_component_info_pt)arrayList_get(info->components, i); + component_destroyComponentInfo(cmpinfo); + } + arrayList_destroy(info->components); + free(info); +} http://git-wip-us.apache.org/repos/asf/celix/blob/a1c30887/dependency_manager/src/dm_dependency_manager_impl.h ---------------------------------------------------------------------- diff --git a/dependency_manager/src/dm_dependency_manager_impl.h b/dependency_manager/src/dm_dependency_manager_impl.h new file mode 100644 index 0000000..c673605 --- /dev/null +++ b/dependency_manager/src/dm_dependency_manager_impl.h @@ -0,0 +1,45 @@ +/** + *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. + */ +/* + * dm_dependency_manager_impl.h + * + * \date 15 Oct 2015 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#ifndef CELIX_DM_DEPENDENCY_MANAGER_IMPL_H +#define CELIX_DM_DEPENDENCY_MANAGER_IMPL_H + +#ifdef __cplusplus +extern "C" { +#endif + + +struct dm_dependency_manager { + array_list_pt components; + + pthread_mutex_t mutex; +}; + +#ifdef __cplusplus +} +#endif + +#endif //CELIX_DM_DEPENDENCY_MANAGER_IMPL_H http://git-wip-us.apache.org/repos/asf/celix/blob/a1c30887/dependency_manager/src/dm_event.c ---------------------------------------------------------------------- diff --git a/dependency_manager/src/dm_event.c b/dependency_manager/src/dm_event.c new file mode 100644 index 0000000..9341832 --- /dev/null +++ b/dependency_manager/src/dm_event.c @@ -0,0 +1,105 @@ +/** + * 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. + */ + +/* + * dm_event.c + * + * \date 18 Dec 2014 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#include <stdlib.h> +#include <constants.h> +#include <utils.h> + +#include "dm_event.h" + +celix_status_t event_create(dm_event_type_e event_type, bundle_pt bundle, bundle_context_pt context, service_reference_pt reference, const void *service, dm_event_pt *event) { + celix_status_t status = CELIX_SUCCESS; + + *event = calloc(1, sizeof(**event)); + if (!*event) { + status = CELIX_ENOMEM; + } + + const char* serviceIdStr = NULL; + serviceReference_getProperty(reference, OSGI_FRAMEWORK_SERVICE_ID, &serviceIdStr); + unsigned long servId = strtoul(serviceIdStr,NULL,10); + + //FIXME service ranking can dynamicly change, but service reference can be removed at any time. + const char* rankingStr = NULL; + serviceReference_getProperty(reference, OSGI_FRAMEWORK_SERVICE_RANKING, &rankingStr); + long ranking = rankingStr == NULL ? 0 : atol(rankingStr); + + if (status == CELIX_SUCCESS) { + (*event)->bundle = bundle; + (*event)->event_type = event_type; + (*event)->context = context; + (*event)->reference = reference; + (*event)->service = service; + (*event)->serviceId = servId; + (*event)->ranking = ranking; + } + + return status; +} + +celix_status_t event_destroy(dm_event_pt *event) { + celix_status_t status = CELIX_SUCCESS; + + if (!*event) { + status = CELIX_ILLEGAL_ARGUMENT; + } + + if (status == CELIX_SUCCESS) { + free(*event); + *event = NULL; + } + + return status; +} + +celix_status_t event_equals(const void *a, const void *b, bool *equals) { + celix_status_t status = CELIX_SUCCESS; + + if (!a || !b) { + *equals = false; + } else { + dm_event_pt a_ptr = (dm_event_pt)a; + dm_event_pt b_ptr = (dm_event_pt)b; + + *equals = a_ptr->serviceId == b_ptr->serviceId; + } + + return status; +} + +celix_status_t event_compareTo(dm_event_pt event, dm_event_pt compareTo, int *compare) { + celix_status_t status = CELIX_SUCCESS; + + *compare = utils_compareServiceIdsAndRanking(event->serviceId, event->ranking, compareTo->serviceId, compareTo->ranking); + + return status; +} + +celix_status_t event_getService(dm_event_pt event, const void **service) { + *service = event->service; + return CELIX_SUCCESS; +} http://git-wip-us.apache.org/repos/asf/celix/blob/a1c30887/dependency_manager/src/dm_event.h ---------------------------------------------------------------------- diff --git a/dependency_manager/src/dm_event.h b/dependency_manager/src/dm_event.h new file mode 100644 index 0000000..1cccd47 --- /dev/null +++ b/dependency_manager/src/dm_event.h @@ -0,0 +1,72 @@ +/** + *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. + */ +/* + * dm_event.h + * + * \date 17 Oct 2014 + * \author <a href="mailto:[email protected]";>Apache Celix Project Team</a> + * \copyright Apache License, Version 2.0 + */ + +#ifndef DM_EVENT_H_ +#define DM_EVENT_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "service_reference.h" +#include "bundle_context.h" +#include "bundle.h" + +enum dm_event_type { + DM_EVENT_ADDED, + DM_EVENT_CHANGED, + DM_EVENT_REMOVED, + DM_EVENT_SWAPPED, +}; + +typedef enum dm_event_type dm_event_type_e; + +struct dm_event { + const void* service; + unsigned long serviceId; + long ranking; + service_reference_pt reference; + bundle_context_pt context; + bundle_pt bundle; + dm_event_type_e event_type; +}; + +typedef struct dm_event *dm_event_pt; + + +celix_status_t event_create(dm_event_type_e event_type, bundle_pt bundle, bundle_context_pt context, service_reference_pt reference, const void* service, dm_event_pt *event); +celix_status_t event_destroy(dm_event_pt* event); + +celix_status_t event_equals(const void* a, const void* b, bool* equals); + +celix_status_t event_getService(dm_event_pt event, const void** service); +celix_status_t event_compareTo(dm_event_pt event, dm_event_pt compareTo, int* compare); + +#ifdef __cplusplus +} +#endif + +#endif /* DM_EVENT_H_ */
