TransportPair Win32NamedPipeTransportFactory::createNonListeningTransports()
{
return std::make_pair(
ServerTransportPtr( new Win32NamedPipeServerTransport( RCF_T("")) ),
ClientTransportAutoPtrPtr());
}
int MulticastClientTransport::send(
I_ClientTransportCallback &clientStub,
const std::vector<ByteBuffer> &data,
unsigned int timeoutMs)
{
// TODO: in some cases, may need to make a full copy of data for
// each individual sub-transport, as they might transform the data.
bringInNewTransports();
Lock lock(mClientTransportsMutex);
// TODO: hardcoded
timeoutMs = 1000;
bool needToRemove = false;
ClientTransportList::iterator iter;
for (
iter = mClientTransports.begin();
iter != mClientTransports.end();
++iter)
{
try
{
if ((**iter)->isInProcess())
{
ClientStub & stub = static_cast<ClientStub &>(clientStub);
(**iter)->doInProcessCall(stub);
}
else
{
// We used to check *iter->isConnected() here, and if so not
// try the send at all. Appear to have been synchronization
// issues when doing that though.
// Sending synchronously, so no use for the callback
DummyCallback dummyCallback;
(**iter)->send(dummyCallback, data, timeoutMs);
}
}
catch(const Exception &e)
{
RCF_LOG_1()(e) << "Error publishing to subscriber.";
needToRemove = true;
iter->reset();
}
}
if (needToRemove)
{
mClientTransports.remove( ClientTransportAutoPtrPtr() );
}
clientStub.onSendCompleted();
return 1;
}
void MulticastClientTransport::addTransport(
ClientTransportAutoPtr clientTransportAutoPtr)
{
Lock lock(mClientTransportsMutex);
clientTransportAutoPtr->setAsync(false);
mAddedClientTransports.push_back( ClientTransportAutoPtrPtr(
new ClientTransportAutoPtr(clientTransportAutoPtr) ) );
}
TransportPair UnixLocalTransportFactory::createTransports()
{
std::string pipeName = generateNewPipeName();
RCF_LOG_2()(pipeName) << "Creating unix local socket transport pair";
return std::make_pair(
ServerTransportPtr( new UnixLocalServerTransport(pipeName) ),
ClientTransportAutoPtrPtr(
new ClientTransportAutoPtr(
new UnixLocalClientTransport(pipeName))));
}
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());
}
}
TransportPair UdpTransportFactory::createNonListeningTransports()
{
return std::make_pair(
ServerTransportPtr( new UdpServerTransport( IpAddress(mLoopback, 0) ) ),
ClientTransportAutoPtrPtr());
}
TransportPair UnixLocalTransportFactory::createNonListeningTransports()
{
return std::make_pair(
ServerTransportPtr( new UnixLocalServerTransport("") ),
ClientTransportAutoPtrPtr());
}
TransportPair HttpsTransportFactory::createNonListeningTransports()
{
return std::make_pair(
ServerTransportPtr(new HttpServerTransport(HttpEndpoint(mLoopback, 0))),
ClientTransportAutoPtrPtr());
}
int MulticastClientTransport::send(
ClientTransportCallback & clientStub,
const std::vector<ByteBuffer> & data,
unsigned int timeoutMs)
{
// NB: As the same buffer is sent on all transports, the transports and
// filters should never modify the buffer. Any transport that transforms
// data needs to do so in a separate per-transport buffer.
RCF_UNUSED_VARIABLE(timeoutMs);
RCF_LOG_2()(lengthByteBuffers(data))(timeoutMs)
<< "MulticastClientTransport::send() - entry.";
mLastRequestSize = lengthByteBuffers(data);
mRunningTotalBytesSent += mLastRequestSize;
bringInNewTransports();
Lock lock(mClientTransportsMutex);
std::size_t transportsInitial = mClientTransports.size();
PublishCompletionInfo info( mClientTransports.size() );
// Setup completion handlers.
std::vector<PublishCompletionHandler> handlers( mClientTransports.size() );
for (std::size_t i=0; i<mClientTransports.size(); ++i)
{
ClientTransport * pTransport = (*mClientTransports[i]).get();
handlers[i] = PublishCompletionHandler(pTransport, &info);
}
// Async send on all transports.
for (std::size_t i=0; i<handlers.size(); ++i)
{
try
{
handlers[i].mpClientTransport->setAsync(true);
handlers[i].mpClientTransport->send(handlers[i], data, 0);
}
catch(const Exception &e)
{
Exception err( _RcfError_SyncPublishError(e.what()) );
handlers[i].onError(err);
}
}
// Wait for async completions.
boost::uint32_t completionDurationMs = 0;
{
Timer timer;
info.wait(timeoutMs);
completionDurationMs = timer.getDurationMs();
}
// Cancel any outstanding sends.
for (std::size_t i=0; i<handlers.size(); ++i)
{
if (!handlers[i].mCompleted)
{
(*mClientTransports[i])->cancel();
RCF_LOG_2()(i)
<< "MulticastClientTransport::send() - cancel send.";
}
}
// Wait for canceled ops to complete.
boost::uint32_t cancelDurationMs = 0;
{
Timer timer;
info.wait(timeoutMs);
cancelDurationMs = timer.getDurationMs();
}
RCF_ASSERT(info.getCompletionCount() == handlers.size());
// Close and remove any subscriber transports with errors.
std::size_t transportsRemoved = 0;
for (std::size_t i=0; i<handlers.size(); ++i)
{
RCF_ASSERT(handlers[i].mCompleted);
if (!handlers[i].mOk)
{
mClientTransports[i] = ClientTransportAutoPtrPtr();
++transportsRemoved;
RCF_LOG_2()(i)(handlers[i].mCompleted)(handlers[i].mOk)(handlers[i].mError)
<< "MulticastClientTransport::send() - remove subscriber transport.";
}
}
eraseRemove(mClientTransports, ClientTransportAutoPtrPtr());
clientStub.onSendCompleted();
std::size_t transportsFinal = transportsInitial - transportsRemoved;
RCF_LOG_2()
(lengthByteBuffers(data))(completionDurationMs)(cancelDurationMs)(transportsInitial)(transportsFinal)
<< "MulticastClientTransport::send() - exit.";
return 1;
}
