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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 "qpid/broker/QueueCleaner.h"
#include "qpid/broker/Broker.h"
#include "qpid/broker/Queue.h"
#include "qpid/sys/Timer.h"
#include <boost/function.hpp>
#include <boost/bind.hpp>
namespace qpid {
namespace broker {
namespace {
typedef boost::function0<void> FireFunction;
class Task : public sys::TimerTask
{
public:
Task(FireFunction f, sys::Duration duration);
void fire();
private:
FireFunction fireFunction;
};
Task::Task(FireFunction f, qpid::sys::Duration d) : sys::TimerTask(d,"QueueCleaner"), fireFunction(f) {}
void Task::fire()
{
fireFunction();
}
}
QueueCleaner::QueueCleaner(QueueRegistry& q, sys::Timer* t) : queues(q), timer(t) {}
QueueCleaner::~QueueCleaner()
{
if (task) task->cancel();
}
void QueueCleaner::start(qpid::sys::Duration p)
{
period = p;
task = new Task(boost::bind(&QueueCleaner::fired, this), p);
timer->add(task);
}
void QueueCleaner::setTimer(qpid::sys::Timer* timer) {
this->timer = timer;
}
namespace {
struct CollectQueues
{
std::vector<Queue::shared_ptr>* queues;
CollectQueues(std::vector<Queue::shared_ptr>* q) : queues(q) {}
void operator()(Queue::shared_ptr q)
{
queues->push_back(q);
}
};
}
void QueueCleaner::fired()
{
//collect copy of list of queues to avoid holding registry lock while we perform purge
std::vector<Queue::shared_ptr> copy;
CollectQueues collect(©);
queues.eachQueue(collect);
std::for_each(copy.begin(), copy.end(), boost::bind(&Queue::purgeExpired, _1, period));
task->setupNextFire();
timer->add(task);
}
}} // namespace qpid::broker
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