| /* |
| * |
| * 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 "Multicaster.h" |
| #include "Cpg.h" |
| #include "ClusterLeaveException.h" |
| #include "qpid/log/Statement.h" |
| |
| |
| namespace qpid { |
| namespace cluster { |
| |
| Multicaster::Multicaster(Cpg& cpg_, const boost::shared_ptr<sys::Poller>& poller) : |
| cpg(cpg_), queue(boost::bind(&Multicaster::sendMcast, this, _1), poller), |
| holding(true) |
| { |
| queue.start(); |
| } |
| |
| void Multicaster::mcastControl(const framing::AMQBody& body, const ConnectionId& id) { |
| mcast(Event::control(body, id)); |
| } |
| |
| void Multicaster::mcastBuffer(const char* data, size_t size, const ConnectionId& id) { |
| Event e(DATA, id, size); |
| memcpy(e.getData(), data, size); |
| mcast(e); |
| } |
| |
| void Multicaster::mcast(const Event& e) { |
| { |
| sys::Mutex::ScopedLock l(lock); |
| if (e.getType() == DATA && e.isConnection() && holding) { |
| holdingQueue.push_back(e); |
| QPID_LOG(trace, " MCAST held: " << e ); |
| return; |
| } |
| } |
| queue.push(e); |
| } |
| |
| |
| void Multicaster::sendMcast(PollableEventQueue::Queue& values) { |
| try { |
| PollableEventQueue::Queue::iterator i = values.begin(); |
| while( i != values.end()) { |
| iovec iov = { const_cast<char*>(i->getStore()), i->getStoreSize() }; |
| if (!cpg.mcast(&iov, 1)) break; // returns false for flow control |
| QPID_LOG(trace, " MCAST " << *i); |
| ++i; |
| } |
| values.erase(values.begin(), i); |
| } |
| catch (const std::exception& e) { |
| throw ClusterLeaveException(e.what()); |
| } |
| } |
| |
| void Multicaster::release() { |
| sys::Mutex::ScopedLock l(lock); |
| holding = false; |
| std::for_each(holdingQueue.begin(), holdingQueue.end(), boost::bind(&Multicaster::mcast, this, _1)); |
| holdingQueue.clear(); |
| } |
| |
| }} // namespace qpid::cluster |