62 lines
2.7 KiB
C++
62 lines
2.7 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include "agent/topic_subscriber.h"
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#include "common/logging.h"
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namespace doris {
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TopicSubscriber::TopicSubscriber() {
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}
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TopicSubscriber::~TopicSubscriber() {
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// Delete all listeners in the register
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std::map<TTopicType::type, std::vector<TopicListener*>>::iterator it
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= _registed_listeners.begin();
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for (; it != _registed_listeners.end(); ++it) {
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std::vector<TopicListener*>& listeners = it->second;
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std::vector<TopicListener*>::iterator listener_it = listeners.begin();
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for (; listener_it != listeners.end(); ++listener_it) {
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delete *listener_it;
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}
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}
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}
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void TopicSubscriber::register_listener(TTopicType::type topic_type, TopicListener* listener) {
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// Unique lock here to prevent access to listeners
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boost::unique_lock<boost::shared_mutex> lock(_listener_mtx);
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this->_registed_listeners[topic_type].push_back(listener);
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}
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void TopicSubscriber::handle_updates(const TAgentPublishRequest& agent_publish_request) {
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// Shared lock here in order to avoid updates in listeners' map
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boost::shared_lock<boost::shared_mutex> lock(_listener_mtx);
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// Currently, not deal with protocol version, the listener should deal with protocol version
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const std::vector<TTopicUpdate>& topic_updates = agent_publish_request.updates;
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std::vector<TTopicUpdate>::const_iterator topic_update_it = topic_updates.begin();
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for (; topic_update_it != topic_updates.end(); ++topic_update_it) {
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std::vector<TopicListener*>& listeners = this->_registed_listeners[topic_update_it->type];
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std::vector<TopicListener*>::iterator listener_it = listeners.begin();
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// Send the update to all listeners with protocol version.
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for (; listener_it != listeners.end(); ++listener_it) {
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(*listener_it)->handle_update(agent_publish_request.protocol_version,
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*topic_update_it);
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}
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}
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}
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} // namespace doris
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