| /* |
| * 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 "FifoMessageDispatchChannel.h" |
| |
| using namespace std; |
| using namespace activemq; |
| using namespace activemq::core; |
| using namespace activemq::commands; |
| using namespace activemq::exceptions; |
| using namespace decaf; |
| using namespace decaf::lang; |
| using namespace decaf::util; |
| using namespace decaf::util::concurrent; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| FifoMessageDispatchChannel::FifoMessageDispatchChannel() : closed(false), running(false), channel() { |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| FifoMessageDispatchChannel::~FifoMessageDispatchChannel() { |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void FifoMessageDispatchChannel::enqueue(const Pointer<MessageDispatch>& message) { |
| synchronized(&channel) { |
| channel.addLast(message); |
| channel.notify(); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void FifoMessageDispatchChannel::enqueueFirst(const Pointer<MessageDispatch>& message) { |
| synchronized(&channel) { |
| channel.addFirst(message); |
| channel.notify(); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool FifoMessageDispatchChannel::isEmpty() const { |
| synchronized(&channel) { |
| return channel.isEmpty(); |
| } |
| |
| return false; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| Pointer<MessageDispatch> FifoMessageDispatchChannel::dequeue(long long timeout) { |
| |
| synchronized(&channel) { |
| // Wait until the channel is ready to deliver messages. |
| while (timeout != 0 && !closed && (channel.isEmpty() || !running)) { |
| if (timeout == -1) { |
| channel.wait(); |
| } else { |
| channel.wait(timeout); |
| break; |
| } |
| } |
| |
| if (closed || !running || channel.isEmpty()) { |
| return Pointer<MessageDispatch>(); |
| } |
| |
| return channel.pop(); |
| } |
| |
| return Pointer<MessageDispatch>(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| Pointer<MessageDispatch> FifoMessageDispatchChannel::dequeueNoWait() { |
| synchronized(&channel) { |
| if (closed || !running || channel.isEmpty()) { |
| return Pointer<MessageDispatch>(); |
| } |
| return channel.pop(); |
| } |
| |
| return Pointer<MessageDispatch>(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| Pointer<MessageDispatch> FifoMessageDispatchChannel::peek() const { |
| synchronized(&channel) { |
| if (closed || !running || channel.isEmpty()) { |
| return Pointer<MessageDispatch>(); |
| } |
| return channel.getFirst(); |
| } |
| |
| return Pointer<MessageDispatch>(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void FifoMessageDispatchChannel::start() { |
| synchronized(&channel) { |
| if (!closed) { |
| running = true; |
| channel.notifyAll(); |
| } |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void FifoMessageDispatchChannel::stop() { |
| synchronized(&channel) { |
| running = false; |
| channel.notifyAll(); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void FifoMessageDispatchChannel::close() { |
| synchronized(&channel) { |
| if (!closed) { |
| running = false; |
| closed = true; |
| } |
| channel.notifyAll(); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void FifoMessageDispatchChannel::clear() { |
| synchronized(&channel) { |
| channel.clear(); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| int FifoMessageDispatchChannel::size() const { |
| synchronized(&channel) { |
| return (int) channel.size(); |
| } |
| |
| return 0; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| std::vector<Pointer<MessageDispatch> > FifoMessageDispatchChannel::removeAll() { |
| std::vector<Pointer<MessageDispatch> > result; |
| |
| synchronized(&channel) { |
| result = channel.toArray(); |
| channel.clear(); |
| } |
| |
| return result; |
| } |