bool SessionTimeoutService::cycle(
int timeoutMs,
const volatile bool &stopFlag)
{
RCF_UNUSED_VARIABLE(timeoutMs);
if ( !mLastRunTimer.elapsed(mReapingIntervalMs)
&& !stopFlag
&& !mStopFlag)
{
Platform::OS::Sleep(1);
return false;
}
mLastRunTimer.restart();
mSessionsTemp.resize(0);
mpRcfServer->enumerateSessions(std::back_inserter(mSessionsTemp));
for (std::size_t i=0; i<mSessionsTemp.size(); ++i)
{
RcfSessionPtr rcfSessionPtr = mSessionsTemp[i].lock();
if (rcfSessionPtr)
{
RCF::Timer touchTimer( rcfSessionPtr->getTouchTimestamp() );
if (touchTimer.elapsed(mSessionTimeoutMs))
{
rcfSessionPtr->disconnect();
}
}
}
return stopFlag || mStopFlag;
}
unsigned int Subscription::getPingTimestamp()
{
RcfSessionPtr rcfSessionPtr;
{
RecursiveLock lock(mMutex);
rcfSessionPtr = mRcfSessionWeakPtr.lock();
}
if (rcfSessionPtr)
{
return rcfSessionPtr->getPingTimestamp();
}
return 0;
}
void MulticastClientTransport::dropIdleTransports()
{
bringInNewTransports();
Lock lock(mClientTransportsMutex);
bool needToRemove = false;
ClientTransportList::iterator iter;
for (iter = mClientTransports.begin(); iter != mClientTransports.end(); ++iter)
{
RCF::ClientTransport & transport = ***iter;
RcfSessionWeakPtr rcfSessionWeakPtr = transport.getRcfSession();
if ( rcfSessionWeakPtr == RcfSessionWeakPtr() )
{
// HTTP/HTTPS connections do not hold on to the RcfSession and can't receive pings.
continue;
}
RcfSessionPtr rcfSessionPtr = rcfSessionWeakPtr.lock();
if (!rcfSessionPtr)
{
RCF_LOG_2() << "Dropping subscription. Subscriber has closed connection.";
iter->reset();
needToRemove = true;
}
else
{
boost::uint32_t pingIntervalMs = rcfSessionPtr->getPingIntervalMs();
if (pingIntervalMs)
{
RCF::Timer pingTimer( rcfSessionPtr->getPingTimestamp() );
if (pingTimer.elapsed(5000 + 2*pingIntervalMs))
{
std::string subscriberUrl = rcfSessionPtr->getClientAddress().string();
RCF_LOG_2()(subscriberUrl)(pingIntervalMs)
<< "Dropping subscription. Subscriber has not sent pings within the expected ping interval.";
iter->reset();
needToRemove = true;
}
}
}
}
if (needToRemove)
{
eraseRemove(mClientTransports, ClientTransportAutoPtrPtr());
}
}
void SubscriptionService::harvestExpiredSubscriptions()
{
// Kill off subscriptions that haven't received any recent pings.
Subscriptions subsToDrop;
{
Lock lock(mSubscriptionsMutex);
Subscriptions::iterator iter;
for (iter = mSubscriptions.begin(); iter != mSubscriptions.end(); ++iter)
{
SubscriptionPtr subPtr = iter->lock();
if (subPtr)
{
Subscription & sub = * subPtr;
RecursiveLock lock(sub.mMutex);
RcfSessionPtr sessionPtr = sub.mRcfSessionWeakPtr.lock();
if (!sessionPtr)
{
RCF_LOG_2()(sub.mPublisherUrl)(sub.mTopic) << "Dropping subscription. Publisher has closed connection.";
subsToDrop.insert(*iter);
}
else if (sub.mPingsEnabled)
{
boost::uint32_t pingIntervalMs = sub.mPingIntervalMs;
if (pingIntervalMs)
{
RCF::Timer pingTimer(sessionPtr->getPingTimestamp());
if (pingTimer.elapsed(5000 + 2*pingIntervalMs))
{
RCF_LOG_2()(sub.mPublisherUrl)(sub.mTopic)(sub.mPingIntervalMs) << "Dropping subscription. Publisher has not sent pings.";
subsToDrop.insert(*iter);
}
}
}
}
}
for (iter = subsToDrop.begin(); iter != subsToDrop.end(); ++iter)
{
mSubscriptions.erase(*iter);
}
}
subsToDrop.clear();
}
SerializationProtocolOut *getCurrentSerializationProtocolOut()
{
ClientStubPtr clientStubPtr = RCF::getCurrentClientStubPtr();
RcfSessionPtr rcfSessionPtr = RCF::getCurrentRcfSessionPtr();
if (clientStubPtr)
{
return &clientStubPtr->getSpOut();
}
else if (rcfSessionPtr)
{
return &rcfSessionPtr->getSpOut();
}
else
{
return NULL;
}
}
SessionPtr AsioServerTransport::createServerSession(
ClientTransportAutoPtr clientTransportAutoPtr,
StubEntryPtr stubEntryPtr)
{
RCF2_TRACE("");
AsioSessionStatePtr sessionStatePtr(createSessionState());
SessionPtr sessionPtr(sessionStatePtr->getSessionPtr());
sessionStatePtr->implTransferNativeFrom(*clientTransportAutoPtr);
if (stubEntryPtr)
{
RcfSessionPtr rcfSessionPtr =
boost::static_pointer_cast<RcfSession>(
sessionStatePtr->mSessionPtr );
rcfSessionPtr->setDefaultStubEntryPtr(stubEntryPtr);
}
sessionStatePtr->mState = AsioSessionState::WritingData;
sessionStatePtr->onReadWrite(0, boost::system::error_code());
return sessionPtr;
}
void MulticastClientTransport::pingAllTransports()
{
bringInNewTransports();
Lock lock(mClientTransportsMutex);
if (!mMulticastTemp.get())
{
mMulticastTemp.reset( new MulticastClientTransport() );
}
MulticastClientTransport & multicastTemp =
static_cast<MulticastClientTransport &>(*mMulticastTemp);
multicastTemp.mClientTransports.resize(0);
ClientTransportList::iterator iter;
for (iter = mClientTransports.begin(); iter != mClientTransports.end(); ++iter)
{
I_ClientTransport & transport = ***iter;
RcfSessionPtr rcfSessionPtr = transport.getRcfSession().lock();
if (rcfSessionPtr)
{
boost::uint32_t pingIntervalMs = rcfSessionPtr->getPingIntervalMs();
if (pingIntervalMs)
{
multicastTemp.mClientTransports.push_back(*iter);
}
}
}
RcfClient<I_Null> nullClient( mMulticastTemp );
nullClient.getClientStub().ping(RCF::Oneway);
mMulticastTemp.reset( nullClient.getClientStub().releaseTransport().release() );
multicastTemp.mClientTransports.resize(0);
}
void RcfServer::onWriteCompleted(SessionPtr sessionPtr)
{
RcfSessionPtr rcfSessionPtr = sessionPtr;
rcfSessionPtr->onWriteCompleted();
}
SubscriptionPtr SubscriptionService::onRequestSubscriptionCompleted(
boost::int32_t ret,
const std::string & publisherName,
RcfClient<I_RequestSubscription> & client,
RcfClientPtr rcfClientPtr,
OnSubscriptionDisconnect onDisconnect,
boost::uint32_t pubToSubPingIntervalMs,
bool pingsEnabled)
{
bool ok = (ret == RcfError_Ok);
if (ok)
{
ClientTransportAutoPtr clientTransportAutoPtr(
client.getClientStub().releaseTransport());
I_ServerTransport * pTransport = NULL;
I_ServerTransportEx * pTransportEx = NULL;
if (clientTransportAutoPtr->isInProcess())
{
pTransport = dynamic_cast<I_ServerTransport *>(
clientTransportAutoPtr.get());
}
else
{
pTransport = & mpServer->findTransportCompatibleWith(
*clientTransportAutoPtr);
}
pTransportEx = dynamic_cast<I_ServerTransportEx *>(pTransport);
I_ServerTransportEx & serverTransportEx = * pTransportEx;
SessionPtr sessionPtr = serverTransportEx.createServerSession(
clientTransportAutoPtr,
StubEntryPtr(new StubEntry(rcfClientPtr)),
true);
RCF_ASSERT( sessionPtr );
RcfSessionPtr rcfSessionPtr = sessionPtr;
rcfSessionPtr->setUserData(client.getClientStub().getUserData());
rcfSessionPtr->setPingTimestamp();
std::string publisherUrl;
EndpointPtr epPtr = client.getClientStub().getEndpoint();
if (epPtr)
{
publisherUrl = epPtr->asString();
}
if ( !clientTransportAutoPtr->isInProcess()
&& !clientTransportAutoPtr->isAssociatedWithIoService())
{
AsioServerTransport & asioTransport = dynamic_cast<AsioServerTransport &>(
mpServer->getServerTransport());
clientTransportAutoPtr->associateWithIoService(asioTransport.getIoService());
}
SubscriptionPtr subscriptionPtr( new Subscription(
*this,
clientTransportAutoPtr,
rcfSessionPtr,
pubToSubPingIntervalMs,
publisherUrl,
publisherName,
onDisconnect));
rcfSessionPtr->setOnDestroyCallback( boost::bind(
&Subscription::onDisconnect,
SubscriptionWeakPtr(subscriptionPtr),
_1));
subscriptionPtr->setWeakThisPtr(subscriptionPtr);
subscriptionPtr->mPingsEnabled = pingsEnabled;
Lock lock(mSubscriptionsMutex);
mSubscriptions.insert(subscriptionPtr);
return subscriptionPtr;
}
return SubscriptionPtr();
}
SubscriptionPtr SubscriptionService::onRequestSubscriptionCompleted(
boost::int32_t ret,
const std::string & publisherName,
ClientStub & clientStub,
RcfClientPtr rcfClientPtr,
OnSubscriptionDisconnect onDisconnect,
boost::uint32_t pubToSubPingIntervalMs,
bool pingsEnabled)
{
if (ret != RcfError_Ok)
{
RCF_THROW( Exception( Error(ret) ) );
}
ClientTransportAutoPtr clientTransportAutoPtr(
clientStub.releaseTransport() );
ServerTransport * pTransport = NULL;
ServerTransportEx * pTransportEx = NULL;
pTransport = & mpServer->findTransportCompatibleWith(
*clientTransportAutoPtr);
pTransportEx = dynamic_cast<ServerTransportEx *>(pTransport);
ServerTransportEx & serverTransportEx = * pTransportEx;
SessionPtr sessionPtr = serverTransportEx.createServerSession(
clientTransportAutoPtr,
StubEntryPtr(new StubEntry(rcfClientPtr)),
true);
RCF_ASSERT( sessionPtr );
RcfSessionPtr rcfSessionPtr = sessionPtr;
rcfSessionPtr->setUserData(clientStub.getUserData());
rcfSessionPtr->setPingTimestamp();
std::string publisherUrl;
EndpointPtr epPtr = clientStub.getEndpoint();
if (epPtr)
{
publisherUrl = epPtr->asString();
}
//if (!clientTransportAutoPtr->isAssociatedWithIoService())
//{
// AsioServerTransport & asioTransport = dynamic_cast<AsioServerTransport &>(
// mpServer->getServerTransport());
// clientTransportAutoPtr->associateWithIoService(asioTransport.getIoService());
//}
SubscriptionPtr subscriptionPtr( new Subscription(
*this,
clientTransportAutoPtr,
rcfSessionPtr,
pubToSubPingIntervalMs,
publisherUrl,
publisherName,
onDisconnect));
rcfSessionPtr->setOnDestroyCallback( boost::bind(
&Subscription::onDisconnect,
SubscriptionWeakPtr(subscriptionPtr),
_1));
subscriptionPtr->setWeakThisPtr(subscriptionPtr);
subscriptionPtr->mPingsEnabled = pingsEnabled;
Lock lock(mSubscriptionsMutex);
mSubscriptions.insert(subscriptionPtr);
return subscriptionPtr;
}
