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// **********************************************************************
//
// Copyright (c) 2003-2017 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 <IceUtil/IceUtil.h>
#include <Ice/Ice.h>
#include <Ice/Network.h> // For getInterfacesForMulticast
#include <IceDiscovery/PluginI.h>
#include <IceDiscovery/LocatorI.h>
#include <IceDiscovery/LookupI.h>
using namespace std;
using namespace IceDiscovery;
#ifndef ICE_DISCOVERY_API
# ifdef ICE_DISCOVERY_API_EXPORTS
# define ICE_DISCOVERY_API ICE_DECLSPEC_EXPORT
# else
# define ICE_DISCOVERY_API /**/
# endif
#endif
//
// Plugin factory function.
//
extern "C" ICE_DISCOVERY_API Ice::Plugin*
createIceDiscovery(const Ice::CommunicatorPtr& communicator, const string&, const Ice::StringSeq&)
{
return new PluginI(communicator);
}
namespace Ice
{
ICE_DISCOVERY_API void
registerIceDiscovery(bool loadOnInitialize)
{
Ice::registerPluginFactory("IceDiscovery", createIceDiscovery, loadOnInitialize);
}
}
//
// Objective-C function to allow Objective-C programs to register plugin.
//
extern "C" ICE_DISCOVERY_API void
ICEregisterIceDiscovery(bool loadOnInitialize)
{
Ice::registerIceDiscovery(loadOnInitialize);
}
PluginI::PluginI(const Ice::CommunicatorPtr& communicator) : _communicator(communicator)
{
}
void
PluginI::initialize()
{
Ice::PropertiesPtr properties = _communicator->getProperties();
bool ipv4 = properties->getPropertyAsIntWithDefault("Ice.IPv4", 1) > 0;
bool preferIPv6 = properties->getPropertyAsInt("Ice.PreferIPv6Address") > 0;
string address;
if(ipv4 && !preferIPv6)
{
address = properties->getPropertyWithDefault("IceDiscovery.Address", "239.255.0.1");
}
else
{
address = properties->getPropertyWithDefault("IceDiscovery.Address", "ff15::1");
}
int port = properties->getPropertyAsIntWithDefault("IceDiscovery.Port", 4061);
string intf = properties->getProperty("IceDiscovery.Interface");
if(properties->getProperty("IceDiscovery.Multicast.Endpoints").empty())
{
ostringstream os;
os << "udp -h \"" << address << "\" -p " << port;
if(!intf.empty())
{
os << " --interface \"" << intf << "\"";
}
properties->setProperty("IceDiscovery.Multicast.Endpoints", os.str());
}
string lookupEndpoints = properties->getProperty("IceDiscovery.Lookup");
if(lookupEndpoints.empty())
{
//
// If no lookup endpoints are specified, we get all the network interfaces and create
// an endpoint for each of them. We'll send UDP multicast packages on each interface.
//
IceInternal::ProtocolSupport protocol = ipv4 && !preferIPv6 ? IceInternal::EnableIPv4 : IceInternal::EnableIPv6;
vector<string> interfaces = IceInternal::getInterfacesForMulticast(intf, protocol);
ostringstream lookup;
for(vector<string>::const_iterator p = interfaces.begin(); p != interfaces.end(); ++p)
{
if(p != interfaces.begin())
{
lookup << ":";
}
lookup << "udp -h \"" << address << "\" -p " << port << " --interface \"" << *p << "\"";
}
lookupEndpoints = lookup.str();
}
if(properties->getProperty("IceDiscovery.Reply.Endpoints").empty())
{
properties->setProperty("IceDiscovery.Reply.Endpoints", "udp -h " + (intf.empty() ? "*" : "\"" + intf + "\""));
}
if(properties->getProperty("IceDiscovery.Locator.Endpoints").empty())
{
properties->setProperty("IceDiscovery.Locator.AdapterId", Ice::generateUUID());
}
_multicastAdapter = _communicator->createObjectAdapter("IceDiscovery.Multicast");
_replyAdapter = _communicator->createObjectAdapter("IceDiscovery.Reply");
_locatorAdapter = _communicator->createObjectAdapter("IceDiscovery.Locator");
//
// Setup locatory registry.
//
LocatorRegistryIPtr locatorRegistry = ICE_MAKE_SHARED(LocatorRegistryI, _communicator);
Ice::LocatorRegistryPrxPtr locatorRegistryPrx =
ICE_UNCHECKED_CAST(Ice::LocatorRegistryPrx, _locatorAdapter->addWithUUID(locatorRegistry));
Ice::ObjectPrxPtr lookupPrx = _communicator->stringToProxy("IceDiscovery/Lookup -d:" + lookupEndpoints);
lookupPrx = lookupPrx->ice_collocationOptimized(false); // No collocation optimization for the multicast proxy!
//
// Add lookup and lookup reply Ice objects
//
_lookup = ICE_MAKE_SHARED(LookupI, locatorRegistry, ICE_UNCHECKED_CAST(LookupPrx, lookupPrx), properties);
_multicastAdapter->add(_lookup, Ice::stringToIdentity("IceDiscovery/Lookup"));
Ice::ObjectPrxPtr lookupReply = _replyAdapter->addWithUUID(ICE_MAKE_SHARED(LookupReplyI, _lookup))->ice_datagram();
_lookup->setLookupReply(ICE_UNCHECKED_CAST(LookupReplyPrx, lookupReply));
//
// Setup locator on the communicator.
//
Ice::ObjectPrxPtr loc = _locatorAdapter->addWithUUID(ICE_MAKE_SHARED(LocatorI, _lookup, locatorRegistryPrx));
_defaultLocator = _communicator->getDefaultLocator();
_locator = ICE_UNCHECKED_CAST(Ice::LocatorPrx, loc);
_communicator->setDefaultLocator(_locator);
_multicastAdapter->activate();
_replyAdapter->activate();
_locatorAdapter->activate();
}
void
PluginI::destroy()
{
_multicastAdapter->destroy();
_replyAdapter->destroy();
_locatorAdapter->destroy();
_lookup->destroy();
// Restore original default locator proxy, if the user didn't change it in the meantime.
if(_communicator->getDefaultLocator() == _locator)
{
_communicator->setDefaultLocator(_defaultLocator);
}
}
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