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/*
* 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.
*/
#include <stdlib.h>
#include "celix_utils.h"
#include "framework_private.h"
#include "celix_log.h"
#include "bundle.h"
static void celix_framework_cleanupBundleLifecycleHandler(celix_framework_t* fw, celix_framework_bundle_lifecycle_handler_t *handler) {
celixThreadMutex_lock(&fw->bundleLifecycleHandling.mutex);
celix_arrayList_remove(fw->bundleLifecycleHandling.bundleLifecycleHandlers, handler);
free(handler->updatedBundleUrl);
free(handler);
celixThreadCondition_broadcast(&fw->bundleLifecycleHandling.cond);
celixThreadMutex_unlock(&fw->bundleLifecycleHandling.mutex);
}
/**
* Functions focusing on handling stop, start, uninstall or update bundle commands so that they will not be executed on the celix Event thread.
*/
static void* celix_framework_BundleLifecycleHandlingThread(void *data) {
celix_framework_bundle_lifecycle_handler_t* handler = data;
switch (handler->command) {
case CELIX_BUNDLE_LIFECYCLE_START:
celix_framework_startBundleEntry(handler->framework, handler->bndEntry);
celix_framework_bundleEntry_decreaseUseCount(handler->bndEntry);
break;
case CELIX_BUNDLE_LIFECYCLE_STOP:
celix_framework_stopBundleEntry(handler->framework, handler->bndEntry);
celix_framework_bundleEntry_decreaseUseCount(handler->bndEntry);
break;
case CELIX_BUNDLE_LIFECYCLE_UNINSTALL:
celix_framework_bundleEntry_decreaseUseCount(handler->bndEntry);
celix_framework_uninstallBundleEntry(handler->framework, handler->bndEntry, true);
break;
case CELIX_BUNDLE_LIFECYCLE_UNLOAD:
celix_framework_bundleEntry_decreaseUseCount(handler->bndEntry);
celix_framework_uninstallBundleEntry(handler->framework, handler->bndEntry, false);
break;
default: //update
celix_framework_bundleEntry_decreaseUseCount(handler->bndEntry);
celix_framework_updateBundleEntry(handler->framework, handler->bndEntry, handler->updatedBundleUrl);
break;
}
celix_framework_cleanupBundleLifecycleHandler(handler->framework, handler);
return NULL;
}
static const char* celix_bundleLifecycleCommand_getDesc(enum celix_bundle_lifecycle_command command) {
switch (command) {
case CELIX_BUNDLE_LIFECYCLE_START:
return "starting";
case CELIX_BUNDLE_LIFECYCLE_STOP:
return "stopping";
case CELIX_BUNDLE_LIFECYCLE_UNINSTALL:
return "uninstalling";
default:
return "updating";
}
}
void celix_framework_waitForBundleLifecycleHandlers(celix_framework_t* fw) {
celixThreadMutex_lock(&fw->bundleLifecycleHandling.mutex);
while (celix_arrayList_size(fw->bundleLifecycleHandling.bundleLifecycleHandlers) != 0) {
fw_log(fw->logger, CELIX_LOG_LEVEL_TRACE, "%d bundle lifecycle handlers left, waiting",
celix_arrayList_size(fw->bundleLifecycleHandling.bundleLifecycleHandlers));
celixThreadCondition_timedwaitRelative(&fw->bundleLifecycleHandling.cond, &fw->bundleLifecycleHandling.mutex, 5, 0);
}
celixThreadMutex_unlock(&fw->bundleLifecycleHandling.mutex);
}
static void celix_framework_createAndStartBundleLifecycleHandler(celix_framework_t* fw, celix_framework_bundle_entry_t* bndEntry, enum celix_bundle_lifecycle_command bndCommand, const char* updatedBundleUrl) {
celix_framework_bundleEntry_increaseUseCount(bndEntry);
celixThreadMutex_lock(&fw->bundleLifecycleHandling.mutex);
celix_framework_bundle_lifecycle_handler_t* handler = calloc(1, sizeof(*handler));
handler->command = bndCommand;
handler->framework = fw;
handler->bndEntry = bndEntry;
handler->bndId = bndEntry->bndId;
handler->updatedBundleUrl = celix_utils_strdup(updatedBundleUrl);
celix_arrayList_add(fw->bundleLifecycleHandling.bundleLifecycleHandlers, handler);
fw_log(fw->logger, CELIX_LOG_LEVEL_TRACE, "Creating thread for %s bundle %li",
celix_bundleLifecycleCommand_getDesc(handler->command) , handler->bndId);
celix_thread_t handlerTask;
celixThread_create(&handlerTask, NULL, celix_framework_BundleLifecycleHandlingThread, handler);
celixThread_detach(handlerTask);
celixThreadMutex_unlock(&fw->bundleLifecycleHandling.mutex);
}
celix_status_t celix_framework_startBundleOnANonCelixEventThread(celix_framework_t* fw, celix_framework_bundle_entry_t* bndEntry, bool forceSpawnThread) {
if (forceSpawnThread) {
fw_log(fw->logger, CELIX_LOG_LEVEL_TRACE, "start bundle from a separate thread");
celix_framework_createAndStartBundleLifecycleHandler(fw, bndEntry, CELIX_BUNDLE_LIFECYCLE_START, NULL);
return CELIX_SUCCESS;
} else if (celix_framework_isCurrentThreadTheEventLoop(fw)) {
fw_log(fw->logger, CELIX_LOG_LEVEL_DEBUG,
"Cannot start bundle from Celix event thread. Using a separate thread to start bundle. See celix_bundleContext_startBundle for more info.");
celix_framework_createAndStartBundleLifecycleHandler(fw, bndEntry, CELIX_BUNDLE_LIFECYCLE_START, NULL);
return CELIX_SUCCESS;
} else {
return celix_framework_startBundleEntry(fw, bndEntry);
}
}
celix_status_t celix_framework_stopBundleOnANonCelixEventThread(celix_framework_t* fw, celix_framework_bundle_entry_t* bndEntry, bool forceSpawnThread) {
if (forceSpawnThread) {
fw_log(fw->logger, CELIX_LOG_LEVEL_TRACE, "stop bundle from a separate thread");
celix_framework_createAndStartBundleLifecycleHandler(fw, bndEntry, CELIX_BUNDLE_LIFECYCLE_STOP, NULL);
return CELIX_SUCCESS;
} else if (celix_framework_isCurrentThreadTheEventLoop(fw)) {
fw_log(fw->logger, CELIX_LOG_LEVEL_DEBUG,
"Cannot stop bundle from Celix event thread. Using a separate thread to stop bundle. See celix_bundleContext_startBundle for more info.");
celix_framework_createAndStartBundleLifecycleHandler(fw, bndEntry, CELIX_BUNDLE_LIFECYCLE_STOP, NULL);
return CELIX_SUCCESS;
} else {
return celix_framework_stopBundleEntry(fw, bndEntry);
}
}
celix_status_t celix_framework_uninstallBundleOnANonCelixEventThread(celix_framework_t* fw, celix_framework_bundle_entry_t* bndEntry, bool forceSpawnThread, bool permanent) {
if (forceSpawnThread) {
fw_log(fw->logger, CELIX_LOG_LEVEL_TRACE, "uninstall bundle from a separate thread");
celix_framework_createAndStartBundleLifecycleHandler(fw, bndEntry, permanent ? CELIX_BUNDLE_LIFECYCLE_UNINSTALL : CELIX_BUNDLE_LIFECYCLE_UNLOAD, NULL);
return CELIX_SUCCESS;
} else if (celix_framework_isCurrentThreadTheEventLoop(fw)) {
fw_log(fw->logger, CELIX_LOG_LEVEL_DEBUG,
"Cannot uninstall bundle from Celix event thread. Using a separate thread to uninstall bundle. See celix_bundleContext_uninstall Bundle for more info.");
celix_framework_createAndStartBundleLifecycleHandler(fw, bndEntry, permanent ? CELIX_BUNDLE_LIFECYCLE_UNINSTALL : CELIX_BUNDLE_LIFECYCLE_UNLOAD, NULL);
return CELIX_SUCCESS;
} else {
return celix_framework_uninstallBundleEntry(fw, bndEntry, permanent);
}
}
celix_status_t celix_framework_updateBundleOnANonCelixEventThread(celix_framework_t* fw, celix_framework_bundle_entry_t* bndEntry, const char* updatedBundleUrl, bool forceSpawnThread) {
if (forceSpawnThread) {
fw_log(fw->logger, CELIX_LOG_LEVEL_TRACE, "update bundle from a separate thread");
celix_framework_createAndStartBundleLifecycleHandler(fw, bndEntry, CELIX_BUNDLE_LIFECYCLE_UPDATE, updatedBundleUrl);
return CELIX_SUCCESS;
} else if (celix_framework_isCurrentThreadTheEventLoop(fw)) {
fw_log(fw->logger, CELIX_LOG_LEVEL_DEBUG,
"Cannot update bundle from Celix event thread. Using a separate thread to update bundle. See celix_bundleContext_updateBundle for more info.");
celix_framework_createAndStartBundleLifecycleHandler(fw, bndEntry, CELIX_BUNDLE_LIFECYCLE_UPDATE, updatedBundleUrl);
return CELIX_SUCCESS;
} else {
return celix_framework_updateBundleEntry(fw, bndEntry, updatedBundleUrl);
}
}