public ISessionPrx Create(string name, Current current, CancellationToken cancel)
{
var session = new Session(name);
ISessionPrx proxy = current.Adapter.AddWithUUID(session, ISessionPrx.Factory);
// Remove endpoints to ensure that calls are collocated-only. This way, if we invoke on the proxy during
// shutdown, the invocation fails immediately without attempting to establish any connection.
ISessionPrx collocProxy = proxy.Clone(endpoints: Array.Empty <Endpoint>());
// Never close this connection from the client and turn on heartbeats with a timeout of 30s
// TODO:
// current.Connection!.IdleTimeout = TimeSpan.FromSeconds(30);
// Removed for function, but this demo is somewhat pointless without this though
current.Connection !.KeepAlive = true;
current.Connection !.Closed += (sender, args) =>
{
try
{
collocProxy.Destroy();
Console.WriteLine("Cleaned up dead client.");
}
catch
{
// The client already destroyed this session, or the server is shutting down
}
};
return(proxy);
}
public ISessionPrx Create(string name, Current current)
{
var session = new Session(name);
ISessionPrx proxy = current.Adapter.AddWithUUID(session, ISessionPrx.Factory);
// Remove endpoints to ensure that calls are collocated-only. This way, if we invoke on the proxy during
// shutdown, the invocation fails immediately without attempting to establish any connection.
ISessionPrx collocProxy = proxy.Clone(endpoints: Array.Empty <Endpoint>());
// Never close this connection from the client and turn on heartbeats with a timeout of 30s
current.Connection !.Acm = new Acm(TimeSpan.FromSeconds(30), AcmClose.Off, AcmHeartbeat.Always);
current.Connection !.Closed += (sender, args) =>
{
try
{
collocProxy.Destroy();
Console.WriteLine("Cleaned up dead client.");
}
catch
{
// The client already destroyed this session, or the server is shutting down
}
};
return(proxy);
}
ConnectImpl(ConnectStrategy factory)
{
Debug.Assert(!_destroy);
new Thread(new ThreadStart(() =>
{
try
{
lock (_mutex)
{
_communicator = new Communicator(
properties: _properties,
logger: _logger,
observer: _observer,
certificates: _certificates,
caCertificates: _caCertificates,
certificateValidationCallback: _certificateValidationCallback,
passwordCallback: _passwordCallback);
}
}
catch (System.Exception ex)
{
lock (_mutex)
{
_destroy = true;
}
_callback.ConnectFailed(this, ex);
return;
}
if (_communicator.DefaultRouter == null)
{
IRouterFinderPrx?finder = null;
try
{
finder = IRouterFinderPrx.Parse(_finderStr, _communicator);
_communicator.DefaultRouter = finder.GetRouter();
}
catch (CommunicatorDestroyedException ex)
{
_callback.ConnectFailed(this, ex);
return;
}
catch (System.Exception ex)
{
if (finder == null)
{
_callback.ConnectFailed(this, ex);
return;
}
else
{
//
// In case of error getting router identity from RouterFinder use default identity.
//
_communicator.DefaultRouter =
finder.Clone(new Identity("router", "Glacier2"), Ice.IRouterPrx.Factory);
}
}
}
try
{
_callback.CreatedCommunicator(this);
Ice.IRouterPrx?defaultRouter = _communicator.DefaultRouter;
Debug.Assert(defaultRouter != null);
var routerPrx = IRouterPrx.UncheckedCast(defaultRouter);
ISessionPrx session = factory(routerPrx);
Connected(routerPrx, session);
}
catch (System.Exception ex)
{
_communicator.Destroy();
_callback.ConnectFailed(this, ex);
}
})).Start();
}
Connected(IRouterPrx router, ISessionPrx session)
{
//
// Remote invocation should be done without acquiring a mutex lock.
//
Debug.Assert(router != null);
Debug.Assert(_communicator != null);
Connection?conn = router.GetCachedConnection();
string category = router.GetCategoryForClient();
int acmTimeout = 0;
try
{
acmTimeout = router.GetACMTimeout();
}
catch (OperationNotExistException)
{
}
if (acmTimeout <= 0)
{
acmTimeout = (int)router.GetSessionTimeout();
}
//
// We create the callback object adapter here because createObjectAdapter internally
// makes synchronous RPCs to the router. We can't create the OA on-demand when the
// client calls objectAdapter() or addWithUUID() because they can be called from the
// GUI thread.
//
if (_useCallbacks)
{
Debug.Assert(_adapter == null);
_adapter = _communicator.CreateObjectAdapterWithRouter(router);
_adapter.Activate();
}
lock (_mutex)
{
_router = router;
if (_destroy)
{
//
// Run destroyInternal in a thread because it makes remote invocations.
//
var t = new Thread(new ThreadStart(DestroyInternal));
t.Start();
return;
}
//
// Cache the category.
//
_category = category;
//
// Assign the session after _destroy is checked.
//
_session = session;
_connected = true;
if (acmTimeout > 0)
{
Connection?connection = _router.GetCachedConnection();
Debug.Assert(connection != null);
connection.SetACM(acmTimeout, null, ACMHeartbeat.HeartbeatAlways);
connection.SetCloseCallback(_ => Destroy());
}
}
try
{
_callback.Connected(this);
}
catch (SessionNotExistException)
{
Destroy();
}
}
private void ConnectImpl(Func <IRouterPrx, ISessionPrx> factory)
{
Debug.Assert(!_destroy);
new Thread(new ThreadStart(() =>
{
try
{
lock (_mutex)
{
_communicator = new Communicator(_properties,
logger: _logger,
observer: _observer,
tlsClientOptions: _tlsClientOptions,
tlsServerOptions: _tlsServerOptions);
}
}
catch (Exception ex)
{
lock (_mutex)
{
_destroy = true;
}
_callback.ConnectFailed(this, ex);
return;
}
if (_communicator.DefaultRouter == null)
{
IRouterFinderPrx?finder = null;
try
{
finder = IRouterFinderPrx.Parse(_finderStr, _communicator);
_communicator.DefaultRouter = finder.GetRouter();
}
catch (CommunicatorDisposedException ex)
{
_callback.ConnectFailed(this, ex);
return;
}
catch (Exception ex)
{
if (finder == null)
{
_callback.ConnectFailed(this, ex);
return;
}
else
{
// In case of error getting router identity from RouterFinder use default identity.
_communicator.DefaultRouter =
finder.Clone(Ice.IRouterPrx.Factory, identity: new Identity("router", "Glacier2"));
}
}
}
try
{
_callback.CreatedCommunicator(this);
IRouterPrx routerPrx = _communicator.DefaultRouter !.Clone(IRouterPrx.Factory);
ISessionPrx session = factory(routerPrx);
Connected(routerPrx, session);
}
catch (Exception ex)
{
_communicator.Dispose();
_callback.ConnectFailed(this, ex);
}
})).Start();
}
private void Connected(IRouterPrx router, ISessionPrx session)
{
// Remote invocation should be done without acquiring a mutex lock.
Debug.Assert(router != null);
Debug.Assert(_communicator != null);
// We create the callback object adapter here because createObjectAdapter internally makes synchronous
// RPCs to the router. We can't create the OA on-demand when the client calls ObjectAdapter() or
// AddWithUUID() because they can be called from the GUI thread.
if (_useCallbacks)
{
Debug.Assert(_adapter == null);
_adapter = _communicator.CreateObjectAdapterWithRouter(router);
_adapter.Activate();
}
string category = router.GetCategoryForClient();
lock (_mutex)
{
_router = router;
if (_destroy)
{
// Run destroyInternal in a thread because it makes remote invocations.
var t = new Thread(new ThreadStart(DestroyInternal));
t.Start();
return;
}
// Cache the category.
_category = category;
// Assign the session after _destroy is checked.
_session = session;
_connected = true;
}
// When using Ice1, we need to figure out the router's acm/session timeout and configure the connection
// accordingly. With Ice2, this is no longer necessary, the idle timeout is negotiated on connection
// establishment.
Connection connection = router.GetConnection();
if (router.Protocol == Protocol.Ice1)
{
TimeSpan idleTimeout = TimeSpan.Zero;
try
{
idleTimeout = TimeSpan.FromSeconds(router.GetACMTimeout());
}
catch (OperationNotExistException)
{
}
if (idleTimeout == TimeSpan.Zero)
{
idleTimeout = TimeSpan.FromSeconds(router.GetSessionTimeout());
}
if (idleTimeout != TimeSpan.Zero)
{
connection.IdleTimeout = idleTimeout;
}
}
connection.Closed += (sender, args) => Destroy();
try
{
_callback.Connected(this);
}
catch (SessionNotExistException)
{
Destroy();
}
}
private void Connected(IRouterPrx router, ISessionPrx session)
{
// Remote invocation should be done without acquiring a mutex lock.
Debug.Assert(router != null);
Debug.Assert(_communicator != null);
Connection?conn = router.GetCachedConnection();
string category = router.GetCategoryForClient();
TimeSpan acmTimeout = TimeSpan.Zero;
try
{
acmTimeout = TimeSpan.FromSeconds(router.GetACMTimeout());
}
catch (OperationNotExistException)
{
}
if (acmTimeout == TimeSpan.Zero)
{
acmTimeout = TimeSpan.FromSeconds(router.GetSessionTimeout());
}
// We create the callback object adapter here because createObjectAdapter internally makes synchronous
// RPCs to the router. We can't create the OA on-demand when the client calls ObjectAdapter() or
// AddWithUUID() because they can be called from the GUI thread.
if (_useCallbacks)
{
Debug.Assert(_adapter == null);
_adapter = _communicator.CreateObjectAdapterWithRouter(router);
_adapter.Activate();
}
lock (_mutex)
{
_router = router;
if (_destroy)
{
// Run destroyInternal in a thread because it makes remote invocations.
var t = new Thread(new ThreadStart(DestroyInternal));
t.Start();
return;
}
// Cache the category.
_category = category;
// Assign the session after _destroy is checked.
_session = session;
_connected = true;
if (acmTimeout != TimeSpan.Zero)
{
Connection?connection = _router.GetCachedConnection();
Debug.Assert(connection != null);
connection.Acm = new Acm(acmTimeout, connection.Acm.Close, AcmHeartbeat.Always);
connection.Closed += (sender, args) => Destroy();
}
}
try
{
_callback.Connected(this);
}
catch (SessionNotExistException)
{
Destroy();
}
}
ConnectImpl(ConnectStrategy factory)
{
Debug.Assert(!_destroy);
new Thread(new ThreadStart(() =>
{
try
{
lock (_mutex)
{
_communicator = new Communicator(
properties: _properties,
compactIdResolver: _compactIdResolver,
logger: _logger,
observer: _observer,
threadStart: _threadStart,
threadStop: _threadStop,
typeIdNamespaces: _typeIdNamespaces);
}
}
catch (System.Exception ex)
{
lock (_mutex)
{
_destroy = true;
}
_callback.connectFailed(this, ex);
return;
}
if (_communicator.GetDefaultRouter() == null)
{
var finder = IRouterFinderPrx.Parse(_finderStr, _communicator);
try
{
_communicator.SetDefaultRouter(finder.GetRouter());
}
catch (CommunicatorDestroyedException ex)
{
_callback.connectFailed(this, ex);
return;
}
catch (System.Exception)
{
//
// In case of error getting router identity from RouterFinder use default identity.
//
_communicator.SetDefaultRouter(
Ice.IRouterPrx.UncheckedCast(finder.Clone(new Identity("router", "Glacier2"))));
}
}
try
{
_callback.createdCommunicator(this);
Ice.IRouterPrx?defaultRouter = _communicator.GetDefaultRouter();
Debug.Assert(defaultRouter != null);
var routerPrx = IRouterPrx.UncheckedCast(defaultRouter);
ISessionPrx session = factory(routerPrx);
Connected(routerPrx, session);
}
catch (System.Exception ex)
{
_communicator.Destroy();
_callback.connectFailed(this, ex);
}
})).Start();
}
