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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 "ExpiryPolicy.h"
#include "Multicaster.h"
#include "qpid/framing/ClusterMessageExpiredBody.h"
#include "qpid/sys/Time.h"
#include "qpid/broker/Message.h"
#include "qpid/broker/Timer.h"
#include "qpid/log/Statement.h"
namespace qpid {
namespace cluster {
ExpiryPolicy::ExpiryPolicy(const boost::function<bool()> & f, Multicaster& m, const MemberId& id, broker::Timer& t)
: expiredPolicy(new Expired), isLeader(f), mcast(m), memberId(id), timer(t) {}
namespace {
uint64_t clusterId(const broker::Message& m) {
assert(m.getFrames().begin() != m.getFrames().end());
return m.getFrames().begin()->getClusterId();
}
struct ExpiryTask : public broker::TimerTask {
ExpiryTask(const boost::intrusive_ptr<ExpiryPolicy>& policy, uint64_t id, sys::AbsTime when)
: TimerTask(when), expiryPolicy(policy), messageId(id) {}
void fire() { expiryPolicy->sendExpire(messageId); }
boost::intrusive_ptr<ExpiryPolicy> expiryPolicy;
const uint64_t messageId;
};
}
void ExpiryPolicy::willExpire(broker::Message& m) {
timer.add(new ExpiryTask(this, clusterId(m), m.getExpiration()));
}
bool ExpiryPolicy::hasExpired(broker::Message& m) {
sys::Mutex::ScopedLock l(lock);
IdSet::iterator i = expired.find(clusterId(m));
if (i != expired.end()) {
expired.erase(i);
const_cast<broker::Message&>(m).setExpiryPolicy(expiredPolicy); // hasExpired() == true;
return true;
}
return false;
}
void ExpiryPolicy::sendExpire(uint64_t id) {
sys::Mutex::ScopedLock l(lock);
if (isLeader())
mcast.mcastControl(framing::ClusterMessageExpiredBody(framing::ProtocolVersion(), id), memberId);
}
void ExpiryPolicy::deliverExpire(uint64_t id) {
sys::Mutex::ScopedLock l(lock);
expired.insert(id);
}
bool ExpiryPolicy::Expired::hasExpired(broker::Message&) { return true; }
void ExpiryPolicy::Expired::willExpire(broker::Message&) { }
}} // namespace qpid::cluster
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