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// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <IceStorm/BatchFlusher.h>
#include <IceStorm/Instance.h>
#include <IceStorm/TraceLevels.h>
#include <Ice/Communicator.h>
#include <Ice/Properties.h>
#include <Ice/LoggerUtil.h>
#include <Ice/Connection.h>
#include <set>
using namespace IceStorm;
using namespace std;
BatchFlusher::BatchFlusher(const InstancePtr& instance) :
_traceLevels(instance->traceLevels()),
_flushTime(IceUtil::Time::milliSeconds(
max(instance->properties()->getPropertyAsIntWithDefault(
"IceStorm.Flush.Timeout", 1000), 100))), // Minimum of 100ms.
_destroy(false)
{
start();
}
BatchFlusher::~BatchFlusher()
{
}
void
BatchFlusher::add(const Ice::ObjectPrx& subscriber)
{
IceUtil::Monitor<IceUtil::Mutex>::Lock sync(*this);
//
// If the set of subscribers is empty then wake up the flushing
// thread since it will be waiting indefinitely
//
if(_subscribers.empty())
{
notify();
}
_subscribers.push_back(subscriber);
}
void
BatchFlusher::remove(const Ice::ObjectPrx& subscriber)
{
IceUtil::Monitor<IceUtil::Mutex>::Lock sync(*this);
_subscribers.remove(subscriber);
}
void
BatchFlusher::destroy()
{
IceUtil::Monitor<IceUtil::Mutex>::Lock sync(*this);
_destroy = true;
notify();
}
void
BatchFlusher::run()
{
for(;;)
{
list<Ice::ObjectPrx> subscribers;
{
IceUtil::Monitor<IceUtil::Mutex>::Lock sync(*this);
if(_destroy)
{
return;
}
if(_subscribers.empty())
{
wait();
}
else
{
timedWait(_flushTime);
}
if(_destroy)
{
return;
}
subscribers = _subscribers;
}
set<Ice::ConnectionPtr> flushSet;
for(list<Ice::ObjectPrx>::const_iterator p = subscribers.begin(); p != subscribers.end(); ++p)
{
Ice::ConnectionPtr connection = (*p)->ice_getCachedConnection();
if(connection)
{
flushSet.insert(connection);
}
}
for(set<Ice::ConnectionPtr>::const_iterator q = flushSet.begin(); q != flushSet.end(); ++q)
{
try
{
(*q)->flushBatchRequests();
}
catch(const Ice::LocalException&)
{
// Ignore.
}
}
//
// Trace after the flush so that the correct number of objects
// are displayed
//
if(_traceLevels->flush > 0)
{
Ice::Trace out(_traceLevels->logger, _traceLevels->flushCat);
out << "connections: " << flushSet.size() << " subscribers: " << subscribers.size();
}
}
}
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