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// **********************************************************************
//
// Copyright (c) 2003-2014 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 <Ice/ConnectionMonitor.h>
#include <Ice/ConnectionI.h>
#include <Ice/LocalException.h>
#include <Ice/LoggerUtil.h>
#include <Ice/Instance.h>
using namespace std;
using namespace Ice;
using namespace IceInternal;
IceUtil::Shared* IceInternal::upCast(ConnectionMonitor* p) { return p; }
void
IceInternal::ConnectionMonitor::checkIntervalForACM(int acmTimeout)
{
if(acmTimeout <= 0)
{
return;
}
//
// If Ice.MonitorConnections isn't set (_interval == 0), the given ACM is used
// to determine the check interval: 1/10 of the ACM timeout with a minmal value
// of 5 seconds and a maximum value of 5 minutes.
//
// Note: if Ice.MonitorConnections is set, the timer is schedulded only if ACM
// is configured for the communicator or some object adapters.
//
int interval;
if(_interval == 0)
{
interval = min(300, max(5, (int)acmTimeout / 10));
}
else if(_scheduledInterval == _interval)
{
return; // Nothing to do, the timer is already scheduled.
}
else
{
interval = _interval;
}
//
// If no timer is scheduled yet or if the given ACM requires a smaller interval,
// we re-schedule the timer.
//
Lock sync(*this);
if(_scheduledInterval == 0 || _scheduledInterval > interval)
{
_scheduledInterval = interval;
_instance->timer()->cancel(this);
_instance->timer()->scheduleRepeated(this, IceUtil::Time::seconds(interval));
}
}
void
IceInternal::ConnectionMonitor::destroy()
{
IceUtil::Mutex::Lock sync(*this);
assert(_instance);
_instance = 0;
_connections.clear();
}
void
IceInternal::ConnectionMonitor::add(const ConnectionIPtr& connection)
{
IceUtil::Mutex::Lock sync(*this);
assert(_instance);
_connections.insert(connection);
}
void
IceInternal::ConnectionMonitor::remove(const ConnectionIPtr& connection)
{
IceUtil::Mutex::Lock sync(*this);
assert(_instance);
_connections.erase(connection);
}
IceInternal::ConnectionMonitor::ConnectionMonitor(const InstancePtr& instance, int interval) :
_instance(instance),
_interval(interval),
_scheduledInterval(0)
{
}
IceInternal::ConnectionMonitor::~ConnectionMonitor()
{
assert(!_instance);
assert(_connections.empty());
}
void
IceInternal::ConnectionMonitor::runTimerTask()
{
set<ConnectionIPtr> connections;
{
IceUtil::Mutex::Lock sync(*this);
if(!_instance)
{
return;
}
connections = _connections;
}
//
// Monitor connections outside the thread synchronization, so
// that connections can be added or removed during monitoring.
//
IceUtil::Time now = IceUtil::Time::now(IceUtil::Time::Monotonic);
for(set<ConnectionIPtr>::const_iterator p = connections.begin(); p != connections.end(); ++p)
{
try
{
(*p)->monitor(now);
}
catch(const exception& ex)
{
IceUtil::Mutex::Lock sync(*this);
if(!_instance)
{
return;
}
Error out(_instance->initializationData().logger);
out << "exception in connection monitor:\n" << ex.what();
}
catch(...)
{
IceUtil::Mutex::Lock sync(*this);
if(!_instance)
{
return;
}
Error out(_instance->initializationData().logger);
out << "unknown exception in connection monitor";
}
}
}
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