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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 "AutoDelete.h"
#include "qpid/sys/Time.h"
using namespace qpid::broker;
using namespace qpid::sys;
AutoDelete::AutoDelete(QueueRegistry* const _registry, uint32_t _period)
: registry(_registry), period(_period*TIME_MSEC), stopped(true) { }
void AutoDelete::add(Queue::shared_ptr const queue){
Mutex::ScopedLock l(lock);
queues.push(queue);
}
Queue::shared_ptr const AutoDelete::pop(){
Queue::shared_ptr next;
Mutex::ScopedLock l(lock);
if(!queues.empty()){
next = queues.front();
queues.pop();
}
return next;
}
void AutoDelete::process(){
Queue::shared_ptr seen;
for(Queue::shared_ptr q = pop(); q; q = pop()){
if(seen == q){
add(q);
break;
}else if(q->canAutoDelete()){
std::string name(q->getName());
registry->destroy(name);
std::cout << "INFO: Auto-deleted queue named " << name << std::endl;
}else{
add(q);
if(!seen) seen = q;
}
}
}
void AutoDelete::run(){
Monitor::ScopedLock l(monitor);
while(!stopped){
process();
monitor.wait(AbsTime(now(), period));
}
}
void AutoDelete::start(){
Monitor::ScopedLock l(monitor);
if(stopped){
stopped = false;
runner = Thread(this);
}
}
void AutoDelete::stop(){
{
Monitor::ScopedLock l(monitor);
if(stopped) return;
stopped = true;
}
monitor.notify();
runner.join();
}
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