$ glacier2router --Ice.Config=config.glacier2

#

# Set the instance name

#

Glacier2.InstanceName=DemoGlacier2

#

# The client-visible endpoint of Glacier2. This should be an endpoint

# visible from the public Internet, and it should be secure.

# 

Glacier2.Client.Endpoints=ssl -p 4064 -h localhost

#

# The server-visible endpoint of Glacier2. This endpoint is only

# required if callbacks are needed (leave empty otherwise). This

# should be an endpoint on an internal network (like 192.168.x.x), or

# on the loopback, so that the server is not directly accessible from

# the Internet.

#

Glacier2.Server.Endpoints=tcp -h localhost

# 

# For this demo, we use a null permissions verifier.

# 

Glacier2.PermissionsVerifier=DemoGlacier2/NullPermissionsVerifier

#

# The timeout for inactive sessions. If any client session is inactive

# for longer than this value, the session expires and is removed. The

# unit is seconds.

#

Glacier2.SessionTimeout=30

#

# Glacier can forward requests buffered or unbuffered. Unbuffered

# means a lower resource consumption, as buffering requires one

# additional thread per connected client or server. However, without

# buffering, messages cannot be batched and message overriding doesn‘t

# work either. Also, with unbuffered request forwarding, the caller

# thread blocks for twoway requests.

# The default is to use buffering (=1), in both directions.

#Glacier2.Client.Buffered=0

#Glacier2.Server.Buffered=0

#

# These two lines instruct Glacier2 to forward contexts both for

# regular routing, as well as for callbacks (reverse routing).

#

Glacier2.Client.ForwardContext=1

Glacier2.Server.ForwardContext=1

#

# To prevent Glacier2 from being flooded with requests from or to one

# particular client, Glacier2 can be configured to sleep for a certain

# period after all current requests for this client have been

# forwarded. During this sleep period, new requests for the client are

# queued. These requests are then all sent once the sleep period is

# over. The unit is milliseconds.

#

Glacier2.Client.SleepTime=500

Glacier2.Server.SleepTime=500

#

# With the two settings below, Glacier2 can be instructed to always

# batch oneways, even if they are sent with a _fwd/o instead of a

# _fwd/O context.

# The default value for Glacier2.Client.AlwaysBatch and 

# Glacier2.Server.AlwaysBatch is 0.

#Glacier2.Client.AlwaysBatch=1

#Glacier2.Server.AlwaysBatch=1

#

# Glacier2 always disables active connection management so there is no

# need to configure this manually. Connection retry does not need to

# be disabled, as it‘s safe for Glacier2 to retry outgoing connections

# to servers. Retry for incoming connections from clients must be

# disabled in the clients.

#

module Demo

{

interface CallbackReceiver

{

    void callback();

};

interface Callback

{

    void initiateCallback(CallbackReceiver* proxy);

    void shutdown();

};

};

voidCallbackI::initiateCallback(const CallbackReceiverPrx& proxy, const Ice::Current& current){    proxy->callback();}voidCallbackI::shutdown(const Ice::Current& c){    c.adapter->getCommunicator()->shutdown();}

#

# The endpoint of the server‘s object adapter. This should be an

# endpoint on an internal network (like 192.168.x.x), or on the

# loopback, so that the server is not directly accessible from the

# Internet.

#

Callback.Server.Endpoints=tcp -h localhost -p 10000

intCallbackServer::run(int argc, char*[]){    Ice::ObjectAdapterPtr adapter = communicator()->createObjectAdapter("Callback.Server");    CallbackPtr cb = new CallbackI;    adapter->add(cb, communicator()->stringToIdentity("callback"));    adapter->activate();    communicator()->waitForShutdown();}

voidCallbackReceiverI::callback(const Ice::Current&){    cout << "received callback" << endl;}

#

# The proxy to the Glacier2 router for all outgoing connections. This

# must match the value of Glacier2.Client.Endpoints in config.glacier2.

#

Ice.Default.Router=DemoGlacier2/router:ssl -p 4064 -h localhost

#

# We don‘t need any endpoints for the client if we use a

# router. Incoming requests are received through connections

# established from the client to the router.

#

Callback.Client.Endpoints=

#

# This must match the value of Callback.Server.Endpoints in

# config.server.

#

Callback.Proxy=callback:tcp -h localhost -p 10000

Glacier2::SessionPrxCallbackClient::createSession(){    Glacier2::SessionPrx session;    cout << "This demo accepts any user-id / password combination.\n";    string id;    string pw;    session = router()->createSession(id, pw);    return session;}intCallbackClient::runWithSession(int argc, char*[]){    Ice::Identity callbackReceiverIdent = createCallbackIdentity("callbackReceiver");        Ice::ObjectPrx base = communicator()->propertyToProxy("Callback.Proxy");    CallbackPrx twoway = CallbackPrx::checkedCast(base);        objectAdapter()->add(new CallbackReceiverI, callbackReceiverIdent);        CallbackReceiverPrx twowayR = CallbackReceiverPrx::uncheckedCast(objectAdapter()->createProxy(callbackReceiverIdent));        string override;        char c;    do    {        cin >> c;        if(c == ‘t‘)        {            Ice::Context context;            context["_fwd"] = "t";            if(!override.empty())            {                context["_ovrd"] = override;            }            twoway->initiateCallback(twowayR, context);        }        else if(c == ‘v‘)        {            if(override.empty())            {                override = "some_value";            }            else            {                override.clear();            }        }        else if(c == ‘s‘)        {            twoway->shutdown();        }    }    while(1);}