internal TransitionCall(IntPtr targetCtxID, CrossContextDelegate deleg)
{
this._sourceCtxID = Thread.CurrentContext.InternalContextID;
this._targetCtxID = targetCtxID;
this._delegate = deleg;
this._targetDomainID = 0;
this._eeData = IntPtr.Zero;
this._srvID = new ServerIdentity(null, Thread.GetContextInternal(this._targetCtxID));
this._ID = this._srvID;
this._ID.RaceSetChannelSink(CrossContextChannel.MessageSink);
this._srvID.RaceSetServerObjectChain(this);
}
internal TransitionCall(IntPtr targetCtxID, IntPtr eeData, int targetDomainID)
{
string str;
this._sourceCtxID = Thread.CurrentContext.InternalContextID;
this._targetCtxID = targetCtxID;
this._delegate = null;
this._targetDomainID = targetDomainID;
this._eeData = eeData;
this._srvID = null;
this._ID = new Identity("TransitionCallURI", null);
CrossAppDomainData data = new CrossAppDomainData(this._targetCtxID, this._targetDomainID, Identity.ProcessGuid);
IMessageSink channelSink = CrossAppDomainChannel.AppDomainChannel.CreateMessageSink(null, data, out str);
this._ID.RaceSetChannelSink(channelSink);
}
internal static System.Runtime.Remoting.Identity GetIdentity(MarshalByRefObject obj, out bool fServer)
{
fServer = true;
System.Runtime.Remoting.Identity identity = null;
if (obj == null)
{
return(identity);
}
if (!RemotingServices.IsTransparentProxy(obj))
{
return((System.Runtime.Remoting.Identity)obj.Identity);
}
fServer = false;
return(RemotingServices.GetRealProxy(obj).IdentityObject);
}
internal static System.Runtime.Remoting.Identity GetIdentity(MarshalByRefObject obj, out bool fServer)
{
fServer = true;
System.Runtime.Remoting.Identity identity = (System.Runtime.Remoting.Identity)null;
if (obj != null)
{
if (!RemotingServices.IsTransparentProxy((object)obj))
{
identity = (System.Runtime.Remoting.Identity)obj.Identity;
}
else
{
fServer = false;
identity = RemotingServices.GetRealProxy((object)obj).IdentityObject;
}
}
return(identity);
}
internal void Init(object o, Identity idObj, RuntimeType requestedType)
{
this.uri = idObj.URI;
MarshalByRefObject tPOrObject = idObj.TPOrObject;
RuntimeType c = null;
if (!RemotingServices.IsTransparentProxy(tPOrObject))
{
c = (RuntimeType) tPOrObject.GetType();
}
else
{
c = (RuntimeType) RemotingServices.GetRealProxy(tPOrObject).GetProxiedType();
}
RuntimeType typeOfObj = (null == requestedType) ? c : requestedType;
if (((null != requestedType) && !requestedType.IsAssignableFrom(c)) && !typeof(IMessageSink).IsAssignableFrom(c))
{
throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_InvalidRequestedType"), new object[] { requestedType.ToString() }));
}
if (c.IsCOMObject)
{
DynamicTypeInfo info = new DynamicTypeInfo(typeOfObj);
this.TypeInfo = info;
}
else
{
RemotingTypeCachedData reflectionCachedData = InternalRemotingServices.GetReflectionCachedData(typeOfObj);
this.TypeInfo = reflectionCachedData.TypeInfo;
}
if (!idObj.IsWellKnown())
{
this.EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);
IChannelInfo info2 = new System.Runtime.Remoting.ChannelInfo();
if (o is AppDomain)
{
object[] channelData = info2.ChannelData;
int length = channelData.Length;
object[] destinationArray = new object[length];
Array.Copy(channelData, destinationArray, length);
for (int i = 0; i < length; i++)
{
if (!(destinationArray[i] is CrossAppDomainData))
{
destinationArray[i] = null;
}
}
info2.ChannelData = destinationArray;
}
this.ChannelInfo = info2;
if (c.HasProxyAttribute)
{
this.SetHasProxyAttribute();
}
}
else
{
this.SetWellKnown();
}
if (ShouldUseUrlObjRef())
{
if (this.IsWellKnown())
{
this.SetObjRefLite();
}
else
{
string str = ChannelServices.FindFirstHttpUrlForObject(this.URI);
if (str != null)
{
this.URI = str;
this.SetObjRefLite();
}
}
}
}
IntPtr _privateData; // Used for DoCallbackInEE
// The _delegate should really be on an agile object otherwise
// the whole point of doing a callBack is moot. However, even if it
// is not, remoting and serialization together will ensure that
// everything happens as expected and there is no smuggling.
internal TransitionCall(
IntPtr targetCtxID,
CrossContextDelegate deleg)
{
BCLDebug.Assert(targetCtxID!=IntPtr.Zero, "bad target ctx for call back");
_sourceCtxID = Thread.CurrentContext.InternalContextID;
_targetCtxID = targetCtxID;
_delegate = deleg;
_targetDomainID = 0;
_privateData = IntPtr.Zero;
// We are going to another context in the same app domain
_srvID = new ServerIdentity(
null,
Thread.GetContextInternal(_targetCtxID));
_ID = _srvID;
_ID.RaceSetChannelSink(CrossContextChannel.MessageSink);
_srvID.RaceSetServerObjectChain(this);
//DBG Console.WriteLine("### TransitionCall ctor: " + Int32.Format(_sourceCtxID,"x") + ":" + Int32.Format(_targetCtxID,"x"));
} // TransitionCall
public static ObjRef Marshal(MarshalByRefObject Obj, string ObjURI, Type RequestedType)
{
if (IsTransparentProxy(Obj))
{
RealProxy proxy = RemotingServices.GetRealProxy(Obj);
Identity identity = proxy.ObjectIdentity;
if (identity != null)
{
if (proxy.GetProxiedType().IsContextful&& !identity.IsConnected)
{
// Unregistered local contextbound object. Register now.
ClientActivatedIdentity cboundIdentity = (ClientActivatedIdentity)identity;
if (ObjURI == null)
{
ObjURI = NewUri();
}
cboundIdentity.ObjectUri = ObjURI;
RegisterServerIdentity(cboundIdentity);
cboundIdentity.StartTrackingLifetime((ILease)Obj.InitializeLifetimeService());
return(cboundIdentity.CreateObjRef(RequestedType));
}
else if (ObjURI != null)
{
throw new RemotingException("It is not possible marshal a proxy of a remote object.");
}
ObjRef or = proxy.ObjectIdentity.CreateObjRef(RequestedType);
TrackingServices.NotifyMarshaledObject(Obj, or);
return(or);
}
}
if (RequestedType == null)
{
RequestedType = Obj.GetType();
}
if (ObjURI == null)
{
if (Obj.ObjectIdentity == null)
{
ObjURI = NewUri();
CreateClientActivatedServerIdentity(Obj, RequestedType, ObjURI);
}
}
else
{
ClientActivatedIdentity identity = GetIdentityForUri("/" + ObjURI) as ClientActivatedIdentity;
if (identity == null || Obj != identity.GetServerObject())
{
CreateClientActivatedServerIdentity(Obj, RequestedType, ObjURI);
}
}
ObjRef oref;
if (IsTransparentProxy(Obj))
{
oref = RemotingServices.GetRealProxy(Obj).ObjectIdentity.CreateObjRef(RequestedType);
}
else
{
oref = Obj.CreateObjRef(RequestedType);
}
TrackingServices.NotifyMarshaledObject(Obj, oref);
return(oref);
}
internal static Identity FindOrCreateIdentity(string objURI, string URL, ObjRef objectRef)
{
Identity idObj = null;
bool flag = URL != null;
idObj = ResolveIdentity(flag ? URL : objURI);
if ((flag && (idObj != null)) && (idObj is ServerIdentity))
{
throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_WellKnown_CantDirectlyConnect"), new object[] { URL }));
}
if (idObj == null)
{
idObj = new Identity(objURI, URL);
ReaderWriterLock tableLock = TableLock;
bool flag2 = !tableLock.IsWriterLockHeld;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
if (flag2)
{
tableLock.AcquireWriterLock(0x7fffffff);
}
idObj = SetIdentity(idObj, null, DuplicateIdentityOption.UseExisting);
idObj.RaceSetObjRef(objectRef);
}
finally
{
if (flag2 && tableLock.IsWriterLockHeld)
{
tableLock.ReleaseWriterLock();
}
}
}
return idObj;
}
[System.Security.SecurityCritical] // auto-generated
internal static Identity FindOrCreateIdentity(
String objURI, String URL, ObjRef objectRef)
{
Identity idObj = null;
Contract.Assert(null != objURI,"null != objURI");
bool bWellKnown = (URL != null);
// Lookup the object in the identity table
// for well-known objects we user the URL
// as the hash-key (instead of just the objUri)
idObj = ResolveIdentity(bWellKnown ? URL : objURI);
if (bWellKnown &&
(idObj != null) &&
(idObj is ServerIdentity))
{
// We are trying to do a connect to a server wellknown object.
throw new RemotingException(
String.Format(
CultureInfo.CurrentCulture, Environment.GetResourceString(
"Remoting_WellKnown_CantDirectlyConnect"),
URL));
}
if (null == idObj)
{
// There is no entry for this uri in the IdTable.
Message.DebugOut("RemotingService::FindOrCreateIdentity: Creating Identity\n");
// This identity is being encountered for the first time.
// We have to do the following things
// (1) Create an identity object for the proxy
// (2) Add the identity to the identity table
// (3) Create a proxy for the object represented by the objref
// Create a new identity
// <EMAIL>GopalK:</EMAIL> Identity should get only one string that is used for everything
idObj = new Identity(objURI, URL);
// We need to guarantee that finally is not interrupted so that the lock is released.
// TableLock has a long path without reliability contract. To avoid adding contract on
// the path, we will use ReaderWriterLock directly.
ReaderWriterLock rwlock = TableLock;
bool takeAndRelease = !rwlock.IsWriterLockHeld;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
// Add it to the identity table
if (takeAndRelease)
rwlock.AcquireWriterLock(INFINITE);
// SetIdentity will give the correct Id if we ----d
// between the ResolveIdentity call above and now.
// (we are unmarshaling, and the server should guarantee
// that the uri is unique, so we will use an existing identity
// in case of a ----)
idObj = SetIdentity(idObj, null, DuplicateIdentityOption.UseExisting);
idObj.RaceSetObjRef(objectRef);
}
finally
{
if (takeAndRelease && rwlock.IsWriterLockHeld)
{
rwlock.ReleaseWriterLock();
}
}
}
else
{
Message.DebugOut("RemotingService::FindOrCreateIdentity: Found Identity!\n");
}
Contract.Assert(null != idObj,"null != idObj");
return idObj;
}
[System.Security.SecurityCritical] // auto-generated
private static MarshalByRefObject SetOrCreateProxy(
Identity idObj, Type classToProxy, Object proxy)
{
Message.DebugOut("Entering SetOrCreateProxy for type \n");
RealProxy realProxy = null;
// If a proxy has not been supplied create one
if (null == proxy)
{
// Create a remoting proxy
Message.DebugOut("SetOrCreateProxy::Creating Proxy for " +
classToProxy.FullName + "\n");
ServerIdentity srvID = idObj as ServerIdentity;
if (idObj.ObjectRef != null)
{
ProxyAttribute pa = ActivationServices.GetProxyAttribute(classToProxy);
realProxy = pa.CreateProxy(idObj.ObjectRef,
classToProxy,
null, //
null); //
}
if(null == realProxy)
{
// The custom proxy attribute does not want to create a proxy. We create a default
// proxy in this case.
ProxyAttribute defaultProxyAttribute = ActivationServices.DefaultProxyAttribute;
realProxy = defaultProxyAttribute.CreateProxy(idObj.ObjectRef,
classToProxy,
null,
(null == srvID ? null :
srvID.ServerContext));
}
}
else
{
BCLDebug.Assert(IsTransparentProxy(proxy),"IsTransparentProxy(proxy)");
// Extract the remoting proxy from the transparent proxy
Message.DebugOut("SetOrCreateProxy::Proxy already created \n");
realProxy = GetRealProxy(proxy);
}
BCLDebug.Assert(null != realProxy,"null != realProxy");
// Set the back reference to the identity in the proxy object
realProxy.IdentityObject = idObj;
// Set the reference to the proxy in the identity object
proxy = realProxy.GetTransparentProxy();
proxy = idObj.RaceSetTransparentProxy(proxy);
Message.DebugOut("Leaving SetOrCreateProxy\n");
// return the transparent proxy
return (MarshalByRefObject)proxy;
}
[System.Security.SecurityCritical] // auto-generated
internal static Identity FindOrCreateIdentity(
String objURI, String URL, ObjRef objectRef)
{
Identity idObj = null;
Contract.Assert(null != objURI, "null != objURI");
bool bWellKnown = (URL != null);
// Lookup the object in the identity table
// for well-known objects we user the URL
// as the hash-key (instead of just the objUri)
idObj = ResolveIdentity(bWellKnown ? URL : objURI);
if (bWellKnown &&
(idObj != null) &&
(idObj is ServerIdentity))
{
// We are trying to do a connect to a server wellknown object.
throw new RemotingException(
String.Format(
CultureInfo.CurrentCulture, Environment.GetResourceString(
"Remoting_WellKnown_CantDirectlyConnect"),
URL));
}
if (null == idObj)
{
// There is no entry for this uri in the IdTable.
Message.DebugOut("RemotingService::FindOrCreateIdentity: Creating Identity\n");
// This identity is being encountered for the first time.
// We have to do the following things
// (1) Create an identity object for the proxy
// (2) Add the identity to the identity table
// (3) Create a proxy for the object represented by the objref
// Create a new identity
// <EMAIL>GopalK:</EMAIL> Identity should get only one string that is used for everything
idObj = new Identity(objURI, URL);
// We need to guarantee that finally is not interrupted so that the lock is released.
// TableLock has a long path without reliability contract. To avoid adding contract on
// the path, we will use ReaderWriterLock directly.
ReaderWriterLock rwlock = TableLock;
bool takeAndRelease = !rwlock.IsWriterLockHeld;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
// Add it to the identity table
if (takeAndRelease)
{
rwlock.AcquireWriterLock(INFINITE);
}
// SetIdentity will give the correct Id if we ----d
// between the ResolveIdentity call above and now.
// (we are unmarshaling, and the server should guarantee
// that the uri is unique, so we will use an existing identity
// in case of a ----)
idObj = SetIdentity(idObj, null, DuplicateIdentityOption.UseExisting);
idObj.RaceSetObjRef(objectRef);
}
finally
{
if (takeAndRelease && rwlock.IsWriterLockHeld)
{
rwlock.ReleaseWriterLock();
}
}
}
else
{
Message.DebugOut("RemotingService::FindOrCreateIdentity: Found Identity!\n");
}
Contract.Assert(null != idObj, "null != idObj");
return(idObj);
}
//
//
internal void Init(Identity idObj, Type requestedType)
{
Message.DebugOut("RemotingServices::FillObjRef: IN");
BCLDebug.Assert(idObj != null, "idObj != null");
// Set the URI of the object to be marshaled
URI = idObj.URI;
// Figure out the type
MarshalByRefObject obj = idObj.TPOrObject;
BCLDebug.Assert(null != obj, "Identity not setup correctly");
// Get the type of the object
Type serverType = null;
if (!RemotingServices.IsTransparentProxy(obj))
{
serverType = obj.GetType();
}
else
{
serverType = RemotingServices.GetRealProxy(obj).GetProxiedType();
}
Type typeOfObj = (null == requestedType ? serverType : requestedType);
// Make sure that the server and requested types are compatible
// (except for objects that implement IMessageSink, since we
// just hand off the message instead of invoking the proxy)
if ((null != requestedType) &&
!requestedType.IsAssignableFrom(serverType) &&
(!typeof(IMessageSink).IsAssignableFrom(serverType)))
{
throw new RemotingException(
String.Format(
Environment.GetResourceString(
"Remoting_InvalidRequestedType"),
requestedType.ToString()));;
}
// Create the type info
if (serverType.IsCOMObject)
{
// __ComObjects need dynamic TypeInfo
DynamicTypeInfo dt = new DynamicTypeInfo(typeOfObj);
TypeInfo = (IRemotingTypeInfo)dt;
}
else
{
RemotingTypeCachedData cache = (RemotingTypeCachedData)
InternalRemotingServices.GetReflectionCachedData(typeOfObj);
TypeInfo = (IRemotingTypeInfo)cache.TypeInfo;
}
if (!idObj.IsWellKnown())
{
// Create the envoy info
EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);
// Create the channel info
ChannelInfo = (IChannelInfo) new ChannelInfo();
if (serverType.HasProxyAttribute)
{
SetHasProxyAttribute();
}
}
else
{
SetWellKnown();
}
// See if we should and can use a url obj ref?
if (ShouldUseUrlObjRef())
{
if (IsWellKnown())
{
// full uri already supplied.
SetObjRefLite();
}
else
{
String httpUri = ChannelServices.FindFirstHttpUrlForObject(URI);
if (httpUri != null)
{
URI = httpUri;
SetObjRefLite();
}
}
}
} // Init
internal void Init(object o, Identity idObj, RuntimeType requestedType)
{
this.uri = idObj.URI;
MarshalByRefObject tPOrObject = idObj.TPOrObject;
RuntimeType c = null;
if (!RemotingServices.IsTransparentProxy(tPOrObject))
{
c = (RuntimeType)tPOrObject.GetType();
}
else
{
c = (RuntimeType)RemotingServices.GetRealProxy(tPOrObject).GetProxiedType();
}
RuntimeType typeOfObj = (null == requestedType) ? c : requestedType;
if (((null != requestedType) && !requestedType.IsAssignableFrom(c)) && !typeof(IMessageSink).IsAssignableFrom(c))
{
throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_InvalidRequestedType"), new object[] { requestedType.ToString() }));
}
if (c.IsCOMObject)
{
DynamicTypeInfo info = new DynamicTypeInfo(typeOfObj);
this.TypeInfo = info;
}
else
{
RemotingTypeCachedData reflectionCachedData = InternalRemotingServices.GetReflectionCachedData(typeOfObj);
this.TypeInfo = reflectionCachedData.TypeInfo;
}
if (!idObj.IsWellKnown())
{
this.EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);
IChannelInfo info2 = new System.Runtime.Remoting.ChannelInfo();
if (o is AppDomain)
{
object[] channelData = info2.ChannelData;
int length = channelData.Length;
object[] destinationArray = new object[length];
Array.Copy(channelData, destinationArray, length);
for (int i = 0; i < length; i++)
{
if (!(destinationArray[i] is CrossAppDomainData))
{
destinationArray[i] = null;
}
}
info2.ChannelData = destinationArray;
}
this.ChannelInfo = info2;
if (c.HasProxyAttribute)
{
this.SetHasProxyAttribute();
}
}
else
{
this.SetWellKnown();
}
if (ShouldUseUrlObjRef())
{
if (this.IsWellKnown())
{
this.SetObjRefLite();
}
else
{
string str = ChannelServices.FindFirstHttpUrlForObject(this.URI);
if (str != null)
{
this.URI = str;
this.SetObjRefLite();
}
}
}
}
internal static Type GetServerTypeForUri(string URI)
{
URI = Identity.RemoveAppNameOrAppGuidIfNecessary(URI);
return(Info.GetServerTypeForUri(URI));
}
internal static ServerIdentity CreateWellKnownObject(string uri)
{
uri = Identity.RemoveAppNameOrAppGuidIfNecessary(uri);
return(Info.StartupWellKnownObject(uri));
}
internal static void DisposeIdentity (Identity ident)
{
lock (uri_hash)
{
if (!ident.Disposed) {
ClientIdentity clientId = ident as ClientIdentity;
if (clientId != null)
uri_hash.Remove (GetNormalizedUri (clientId.TargetUri));
else
uri_hash.Remove (ident.ObjectUri);
ident.Disposed = true;
}
}
}
[System.Security.SecurityCritical] // auto-generated
private static Object GetOrCreateProxy(
Identity idObj, Object proxy, bool fRefine)
{
Message.DebugOut("Entering GetOrCreateProxy for given proxy\n");
// If we are not supplied a proxy then we have to find an existing
// proxy or create one
if (null == proxy)
{
// Get the type of the server object
Type serverType;
ServerIdentity serverID = idObj as ServerIdentity;
if (null != serverID)
{
serverType = serverID.ServerType; // ServerObject.GetType();
}
else
{
BCLDebug.Assert(ObjRef.IsWellFormed(idObj.ObjectRef),
"ObjRef.IsWellFormed(idObj.ObjectRef)");
IRemotingTypeInfo serverTypeInfo = idObj.ObjectRef.TypeInfo;
// For system generated type info we create the proxy for
// object type. Later, when the proxy is cast to the appropriate
// type we will update its internal state to refer to the cast type
// This way we avoid loading the server type till cast time.
//
// For type info generated by others we have no choice but to
// load the type provided by the typeinfo. Sometimes, we
// use this second approach even if the typeinfo has been
// generated by us because this saves us an extra checkcast.
// A typical example of this usage will be when we are
// unmarshaling in parameters. We know that the unmarshal will
// be followed by a check cast to ensure that the parameter type
// matches the signature type, so we do both in one step.
serverType = null;
if (((serverTypeInfo is TypeInfo) && !fRefine) ||
(serverTypeInfo == null))
{
serverType = typeof(System.MarshalByRefObject);
}
else
{
String typeName = serverTypeInfo.TypeName;
if (typeName != null)
{
String typeNamespace = null;
String assemNamespace = null;
TypeInfo.ParseTypeAndAssembly(typeName, out typeNamespace, out assemNamespace);
Assembly assem = FormatterServices.LoadAssemblyFromStringNoThrow(assemNamespace);
if (assem != null)
{
serverType = assem.GetType(typeNamespace, false, false);
}
}
}
if (null == serverType)
{
throw new RemotingException(
String.Format(
CultureInfo.CurrentCulture, Environment.GetResourceString(
"Remoting_BadType"),
serverTypeInfo.TypeName));
}
}
Message.DebugOut("Creating Proxy for type " + serverType.FullName + "\n");
proxy = SetOrCreateProxy(idObj, serverType, null);
}
else
{
// We have been supplied with a proxy. Set that proxy in
// the identity object
// Assert that this the activation case only as this code path is
// not thread safe otherwise! (We call Wrap to associate an object
// with its proxy during activation).
BCLDebug.Assert(
((RemotingProxy)GetRealProxy(proxy)).ConstructorMessage!=null,
"Only expect to be here during activation!");
proxy = SetOrCreateProxy(idObj, null, proxy);
}
// At this point we should have a non-null transparent proxy
if (proxy == null)
throw new RemotingException(Environment.GetResourceString("Remoting_UnexpectedNullTP"));
BCLDebug.Assert(IsTransparentProxy(proxy),"IsTransparentProxy(proxy)");
Message.DebugOut("Leaving GetOrCreateProxy for given proxy\n");
// Return the underlying transparent proxy
return proxy;
}
[System.Security.SecurityCritical] // auto-generated
private static Identity SetIdentity(
Identity idObj, String URI, DuplicateIdentityOption duplicateOption)
{
// NOTE: This function assumes that a lock has been taken
// by the calling function
// idObj could be for a transparent proxy or a server object
Message.DebugOut("SetIdentity:: domainid: " + Thread.GetDomainID() + "\n");
Contract.Assert(null != idObj, "null != idObj");
// WriterLock must already be taken when SetIdentity is called!
Contract.Assert(
TableLock.IsWriterLockHeld,
"Should have write-locked the ID Table!");
// flag to denote that the id being set is a ServerIdentity
bool bServerIDSet = idObj is ServerIdentity;
if (null == idObj.URI)
{
// No URI has been associated with this identity. It must be a
// server identity getting marshaled out of the app domain for
// the first time.
Contract.Assert(bServerIDSet, "idObj should be ServerIdentity");
// Set the URI on the idObj (generating one if needed)
idObj.SetOrCreateURI(URI);
// If objectref is non-null make sure both have same URIs
// (the URI in the objectRef could have potentially been reset
// in a past external call to Disconnect()
if (idObj.ObjectRef != null)
{
idObj.ObjectRef.URI = idObj.URI;
}
Message.DebugOut("SetIdentity: Generated URI " + URI + " for identity");
}
// If we have come this far then there is no URI to identity
// mapping present. Go ahead and create one.
// ID should have a URI by now.
Contract.Assert(null != idObj.URI, "null != idObj.URI");
// See if this identity is already present in the Uri table
String uriKey = MakeURIKey(idObj.URI);
Object o = URITable[uriKey];
// flag to denote that the id found in the table is a ServerIdentity
bool bServerID;
if (null != o)
{
// We found an identity (or a WeakRef to one) for the URI provided
WeakReference wr = o as WeakReference;
Identity idInTable = null;
if (wr != null)
{
// The object we found is a weak referece to an identity
// This could be an identity for a client side
// proxy
// OR
// a server identity which has been weakened since its life
// is over.
idInTable = (Identity)wr.Target;
bServerID = idInTable is ServerIdentity;
// If we find a weakRef for a ServerId we will be converting
// it to a strong one before releasing the IdTable lock.
Contract.Assert(
(idInTable == null) ||
(!bServerID || idInTable.IsRemoteDisconnected()),
"Expect to find WeakRef only for remotely disconnected ids");
// We could find a weakRef to a client ID that does not
// match the idObj .. but that is a handled ---- case
// during Unmarshaling .. SetIdentity() will return the ID
// from the table to the caller.
}
else
{
// We found a non-weak (strong) Identity for the URI
idInTable = (Identity)o;
bServerID = idInTable is ServerIdentity;
//We dont put strong refs to client "Identity"s in the table
Contract.Assert(
bServerID,
"Found client side strong ID in the table");
}
if ((idInTable != null) && (idInTable != idObj))
{
// We are trying to add another identity for the same URI
switch (duplicateOption)
{
case DuplicateIdentityOption.Unique:
{
String tempURI = idObj.URI;
// Throw an exception to indicate the error since this could
// be caused by a user trying to marshal two objects with the same
// URI
throw new RemotingException(
Environment.GetResourceString("Remoting_URIClash",
tempURI));
} // case DuplicateIdentityOption.Unique
case DuplicateIdentityOption.UseExisting:
{
// This would be a case where our thread lost the ----
// we will return the one found in the table
idObj = idInTable;
break;
} // case DuplicateIdentityOption.UseExisting:
default:
{
Contract.Assert(false, "Invalid DuplicateIdentityOption");
break;
}
} // switch (duplicateOption)
}
else
if (wr != null)
{
// We come here if we found a weakRef in the table but
// the target object had been cleaned up
// OR
// If there was a weakRef in the table and the target
// object matches the idObj just passed in
// Strengthen the entry if it a ServerIdentity.
if (bServerID)
{
URITable[uriKey] = idObj;
}
else
{
// For client IDs associate the table entry
// with the one passed in.
// (If target was null we would set it ...
// if was non-null then it matches idObj anyway)
wr.Target = idObj;
}
}
}
else
{
// We did not find an identity entry for the URI
Object addMe = null;
if (bServerIDSet)
{
addMe = idObj;
((ServerIdentity)idObj).SetHandle();
}
else
{
addMe = new WeakReference(idObj);
}
// Add the entry into the table
URITable.Add(uriKey, addMe);
idObj.SetInIDTable();
// After every fixed number of set-id calls we run through
// the table and cleanup if needed.
SetIDCount++;
if (SetIDCount % CleanUpCountInterval == 0)
{
// This should be called with the write lock held!
// (which is why we assert that at the beginning of this
// method)
CleanupIdentities(null);
}
}
Message.DebugOut("SetIdentity:: Identity::URI: " + idObj.URI + "\n");
return(idObj);
}
//
//
internal void Init(Identity idObj, Type requestedType)
{
Message.DebugOut("RemotingServices::FillObjRef: IN");
BCLDebug.Assert(idObj != null,"idObj != null");
// Set the URI of the object to be marshaled
URI = idObj.URI;
// Figure out the type
MarshalByRefObject obj = idObj.TPOrObject;
BCLDebug.Assert(null != obj, "Identity not setup correctly");
// Get the type of the object
Type serverType = null;
if(!RemotingServices.IsTransparentProxy(obj))
{
serverType = obj.GetType();
}
else
{
serverType = RemotingServices.GetRealProxy(obj).GetProxiedType();
}
Type typeOfObj = (null == requestedType ? serverType : requestedType);
// Make sure that the server and requested types are compatible
// (except for objects that implement IMessageSink, since we
// just hand off the message instead of invoking the proxy)
if ((null != requestedType) &&
!requestedType.IsAssignableFrom(serverType) &&
(!typeof(IMessageSink).IsAssignableFrom(serverType)))
{
throw new RemotingException(
String.Format(
Environment.GetResourceString(
"Remoting_InvalidRequestedType"),
requestedType.ToString())); ;
}
{
RemotingTypeCachedData cache = (RemotingTypeCachedData)
InternalRemotingServices.GetReflectionCachedData(typeOfObj);
TypeInfo = (IRemotingTypeInfo)cache.TypeInfo;
}
if (!idObj.IsWellKnown())
{
// Create the envoy info
EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);
// Create the channel info
ChannelInfo = (IChannelInfo)new ChannelInfo();
if (serverType.HasProxyAttribute)
{
SetHasProxyAttribute();
}
}
else
{
SetWellKnown();
}
// See if we should and can use a url obj ref?
if (ShouldUseUrlObjRef())
{
if (IsWellKnown())
{
// full uri already supplied.
SetObjRefLite();
}
else
{
String httpUri = ChannelServices.FindFirstHttpUrlForObject(URI);
if (httpUri != null)
{
URI = httpUri;
SetObjRefLite();
}
}
}
} // Init
internal static void SetEnvoyAndChannelSinks(Identity idObj, IMessageSink chnlSink, IMessageSink envoySink)
{
if ((idObj.ChannelSink == null) && (chnlSink != null))
{
idObj.RaceSetChannelSink(chnlSink);
}
if (idObj.EnvoyChain == null)
{
if (envoySink == null)
{
throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_BadInternalState_FailEnvoySink"), new object[0]));
}
idObj.RaceSetEnvoyChain(envoySink);
}
}
private static Identity SetIdentity(Identity idObj, string URI, DuplicateIdentityOption duplicateOption)
{
bool flag1 = idObj is ServerIdentity;
if (idObj.URI == null)
{
idObj.SetOrCreateURI(URI);
if (idObj.ObjectRef != null)
{
idObj.ObjectRef.URI = idObj.URI;
}
}
string str = IdentityHolder.MakeURIKey(idObj.URI);
object obj1 = IdentityHolder.URITable[(object)str];
if (obj1 != null)
{
WeakReference weakReference = obj1 as WeakReference;
Identity identity;
bool flag2;
if (weakReference != null)
{
identity = (Identity)weakReference.Target;
flag2 = identity is ServerIdentity;
}
else
{
identity = (Identity)obj1;
flag2 = identity is ServerIdentity;
}
if (identity != null && identity != idObj)
{
if (duplicateOption != DuplicateIdentityOption.Unique)
{
if (duplicateOption == DuplicateIdentityOption.UseExisting)
{
idObj = identity;
}
}
else
{
throw new RemotingException(Environment.GetResourceString("Remoting_URIClash", (object)idObj.URI));
}
}
else if (weakReference != null)
{
if (flag2)
{
IdentityHolder.URITable[(object)str] = (object)idObj;
}
else
{
weakReference.Target = (object)idObj;
}
}
}
else
{
object obj2;
if (flag1)
{
obj2 = (object)idObj;
((ServerIdentity)idObj).SetHandle();
}
else
{
obj2 = (object)new WeakReference((object)idObj);
}
IdentityHolder.URITable.Add((object)str, obj2);
idObj.SetInIDTable();
++IdentityHolder.SetIDCount;
if (IdentityHolder.SetIDCount % 64 == 0)
{
IdentityHolder.CleanupIdentities((object)null);
}
}
return(idObj);
}
private static MarshalByRefObject SetOrCreateProxy(Identity idObj, Type classToProxy, object proxy)
{
RealProxy realProxy = null;
if (proxy == null)
{
ServerIdentity identity = idObj as ServerIdentity;
if (idObj.ObjectRef != null)
{
realProxy = ActivationServices.GetProxyAttribute(classToProxy).CreateProxy(idObj.ObjectRef, classToProxy, null, null);
}
if (realProxy == null)
{
realProxy = ActivationServices.DefaultProxyAttribute.CreateProxy(idObj.ObjectRef, classToProxy, null, (identity == null) ? null : identity.ServerContext);
}
}
else
{
realProxy = GetRealProxy(proxy);
}
realProxy.IdentityObject = idObj;
proxy = realProxy.GetTransparentProxy();
proxy = idObj.RaceSetTransparentProxy(proxy);
return (MarshalByRefObject) proxy;
}
internal IMessageSink GetServerObjectChain(out MarshalByRefObject obj)
{
obj = null;
// NOTE: Lifetime relies on the Identity flags for
// SingleCall and Singleton being set by the time this getter
// is called.
if (!this.IsSingleCall())
{
// This is the common case
if (_serverObjectChain == null)
{
bool fLocked = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
Monitor.ReliableEnter(this, ref fLocked);
if (_serverObjectChain == null)
{
MarshalByRefObject srvObj =
(MarshalByRefObject)
this.TPOrObject;
_serverObjectChain =
_srvCtx.CreateServerObjectChain(
srvObj);
}
}
finally
{
if (fLocked)
{
Monitor.Exit(this);
}
}
}
BCLDebug.Assert(null != _serverObjectChain,
"null != _serverObjectChain");
return(_serverObjectChain);
}
else
{
// ---------- SINGLE CALL WKO --------------
// In this case, we are expected to provide
// a fresh server object for each dispatch.
// Since the server object chain is object
// specific, we must create a fresh chain too.
// We must be in the correct context for this
// to succeed.
BCLDebug.Assert(Thread.CurrentContext == _srvCtx,
"Bad context mismatch");
MarshalByRefObject srvObj = null;
IMessageSink objChain = null;
if (_tpOrObject != null && _firstCallDispatched == 0 && Interlocked.CompareExchange(ref _firstCallDispatched, 1, 0) == 0)
{
// use the instance of server object created to
// set up the pipeline.
srvObj = (MarshalByRefObject)_tpOrObject;
objChain = _serverObjectChain;
if (objChain == null)
{
objChain = _srvCtx.CreateServerObjectChain(srvObj);
}
}
else
{
// For singleCall we create a fresh object & its chain
// on each dispatch!
srvObj = (MarshalByRefObject)
Activator.CreateInstance((Type)_srvType, true);
// make sure that object didn't Marshal itself.
// (well known objects should live up to their promise
// of exporting themselves through exactly one url)
String tempUri = RemotingServices.GetObjectUri(srvObj);
if (tempUri != null)
{
throw new RemotingException(
String.Format(
CultureInfo.CurrentCulture, Environment.GetResourceString(
"Remoting_WellKnown_CtorCantMarshal"),
this.URI));
}
// Set the identity depending on whether we have the server
// or proxy
if (!RemotingServices.IsTransparentProxy(srvObj))
{
#if _DEBUG
Identity idObj = srvObj.__RaceSetServerIdentity(this);
#else
srvObj.__RaceSetServerIdentity(this);
#endif
#if _DEBUG
BCLDebug.Assert(idObj == this, "Bad ID state!");
BCLDebug.Assert(idObj == MarshalByRefObject.GetIdentity(srvObj), "Bad ID state!");
#endif
}
else
{
RealProxy rp = null;
rp = RemotingServices.GetRealProxy(srvObj);
BCLDebug.Assert(null != rp, "null != rp");
// #if _DEBUG
// Identity idObj = (ServerIdentity) rp.SetIdentity(this);
// #else
rp.IdentityObject = this;
// #endif
}
// Create the object chain and return it
objChain = _srvCtx.CreateServerObjectChain(srvObj);
}
// This is passed out to the caller so that for single-call
// case we can call Dispose when the incoming call is done
obj = srvObj;
return(objChain);
}
}
private static object GetOrCreateProxy(Type classToProxy, Identity idObj)
{
object tPOrObject = idObj.TPOrObject;
if (tPOrObject == null)
{
tPOrObject = SetOrCreateProxy(idObj, classToProxy, null);
}
ServerIdentity identity = idObj as ServerIdentity;
if (identity != null)
{
Type serverType = identity.ServerType;
if (!classToProxy.IsAssignableFrom(serverType))
{
throw new InvalidCastException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("InvalidCast_FromTo"), new object[] { serverType.FullName, classToProxy.FullName }));
}
}
return tPOrObject;
}
// NOTE: This method is called multiple times as we reuse the
// message object. Make sure that you reset any fields that you
// add to the message object to the default values. This will
// ensure that the reused message object starts with the correct
// values.
internal void InitFields(MessageData msgData)
{
_frame = msgData.pFrame;
_delegateMD = msgData.pDelegateMD;
_methodDesc = msgData.pMethodDesc;
_last = -1;
_flags = msgData.iFlags;
_initDone = true;
_metaSigHolder = msgData.pSig;
_MethodName = null;
_MethodSignature = null;
_MethodBase = null;
_URI = null;
_Fault = null;
_ID = null;
_srvID = null;
_callContext = null;
if (_properties != null)
{
// A dictionary object already exists. This case occurs
// when we reuse the message object. Just remove all the
// entries from the dictionary object and reuse it.
((IDictionary)_properties).Clear();
}
}
private static object GetOrCreateProxy(Identity idObj, object proxy, bool fRefine)
{
if (proxy == null)
{
Type serverType;
ServerIdentity identity = idObj as ServerIdentity;
if (identity != null)
{
serverType = identity.ServerType;
}
else
{
IRemotingTypeInfo typeInfo = idObj.ObjectRef.TypeInfo;
serverType = null;
if (((typeInfo is TypeInfo) && !fRefine) || (typeInfo == null))
{
serverType = typeof(MarshalByRefObject);
}
else
{
string typeName = typeInfo.TypeName;
if (typeName != null)
{
string str2 = null;
string assemName = null;
TypeInfo.ParseTypeAndAssembly(typeName, out str2, out assemName);
Assembly assembly = FormatterServices.LoadAssemblyFromStringNoThrow(assemName);
if (assembly != null)
{
serverType = assembly.GetType(str2, false, false);
}
}
}
if (null == serverType)
{
throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_BadType"), new object[] { typeInfo.TypeName }));
}
}
proxy = SetOrCreateProxy(idObj, serverType, null);
}
else
{
proxy = SetOrCreateProxy(idObj, null, proxy);
}
if (proxy == null)
{
throw new RemotingException(Environment.GetResourceString("Remoting_UnexpectedNullTP"));
}
return proxy;
}
} // TransitionCall
// This constructor should be used for cross appdomain case.
internal TransitionCall(IntPtr targetCtxID, IntPtr privateData, int targetDomainID)
{
BCLDebug.Assert(targetCtxID != IntPtr.Zero, "bad target ctx for call back");
BCLDebug.Assert(targetDomainID != 0, "bad target ctx for call back");
_sourceCtxID = Thread.CurrentContext.InternalContextID;
_targetCtxID = targetCtxID;
_delegate = null;
_targetDomainID = targetDomainID;
_privateData = privateData;
// In the cross domain case, the client side just has a base Identity
// and the server domain has the Server identity. We fault in the latter
// when requested later.
// We are going to a context in another app domain
_srvID = null;
_ID = new Identity("TransitionCallURI", null);
// Create the data needed for the channel sink creation
CrossAppDomainData data =
new CrossAppDomainData(_targetCtxID,
_targetDomainID,
Identity.ProcessGuid);
String unUsed;
IMessageSink channelSink =
CrossAppDomainChannel.AppDomainChannel.CreateMessageSink(
null, //uri
data, //channelData
out unUsed);//out objURI
BCLDebug.Assert(channelSink != null, "X-domain transition failure");
_ID.RaceSetChannelSink(channelSink);
} // TransitionCall
internal void InitFields(MessageData msgData)
{
this._frame = msgData.pFrame;
this._delegateMD = msgData.pDelegateMD;
this._methodDesc = msgData.pMethodDesc;
this._flags = msgData.iFlags;
this._initDone = true;
this._metaSigHolder = msgData.pSig;
this._governingType = msgData.thGoverningType;
this._MethodName = null;
this._MethodSignature = null;
this._MethodBase = null;
this._URI = null;
this._Fault = null;
this._ID = null;
this._srvID = null;
this._callContext = null;
if (this._properties != null)
{
((IDictionary) this._properties).Clear();
}
}
//
//
// This is typically called when we are unmarshaling an objectref
// in order to create a client side identity for a remote server
// object.
internal static Identity FindOrCreateIdentity(
String objURI, String URL, ObjRef objectRef)
{
Identity idObj = null;
bool bLock = false;
BCLDebug.Assert(null != objURI,"null != objURI");
try
{
bool bWellKnown = (URL != null);
// Lookup the object in the identity table
// for well-known objects we user the URL
// as the hash-key (instead of just the objUri)
idObj = ResolveIdentity(bWellKnown ? URL : objURI);
if (bWellKnown &&
(idObj != null) &&
(idObj is ServerIdentity))
{
// We are trying to do a connect to a server wellknown object.
throw new RemotingException(
String.Format(
Environment.GetResourceString(
"Remoting_WellKnown_CantDirectlyConnect"),
URL));
}
if (null == idObj)
{
// There is no entry for this uri in the IdTable.
Message.DebugOut("RemotingService::FindOrCreateIdentity: Creating Identity\n");
// This identity is being encountered for the first time.
// We have to do the following things
// (1) Create an identity object for the proxy
// (2) Add the identity to the identity table
// (3) Create a proxy for the object represented by the objref
// Create a new identity
// Identity should get only one string that is used for everything
idObj = new Identity(objURI, URL);
// Add it to the identity table
TableLock.AcquireWriterLock(INFINITE);
bLock = true;
// SetIdentity will give the correct Id if we raced
// between the ResolveIdentity call above and now.
// (we are unmarshaling, and the server should guarantee
// that the uri is unique, so we will use an existing identity
// in case of a race)
idObj = SetIdentity(idObj, null, DuplicateIdentityOption.UseExisting);
idObj.RaceSetObjRef(objectRef);
}
else
{
Message.DebugOut("RemotingService::FindOrCreateIdentity: Found Identity!\n");
}
}
finally
{
if (bLock)
{
TableLock.ReleaseWriterLock();
}
}
BCLDebug.Assert(null != idObj,"null != idObj");
return idObj;
}
[System.Security.SecurityCritical] // auto-generated
internal void Init(Object o, Identity idObj, RuntimeType requestedType)
{
Message.DebugOut("RemotingServices::FillObjRef: IN");
BCLDebug.Assert(idObj != null, "idObj != null");
// Set the URI of the object to be marshaled
uri = idObj.URI;
// Figure out the type
MarshalByRefObject obj = idObj.TPOrObject;
BCLDebug.Assert(null != obj, "Identity not setup correctly");
// Get the type of the object
RuntimeType serverType = null;
if (!RemotingServices.IsTransparentProxy(obj))
{
serverType = (RuntimeType)obj.GetType();
}
else
{
serverType = (RuntimeType)RemotingServices.GetRealProxy(obj).GetProxiedType();
}
RuntimeType typeOfObj = (null == requestedType ? serverType : requestedType);
// Make sure that the server and requested types are compatible
// (except for objects that implement IMessageSink, since we
// just hand off the message instead of invoking the proxy)
if ((null != requestedType) &&
!requestedType.IsAssignableFrom(serverType) &&
(!typeof(IMessageSink).IsAssignableFrom(serverType)))
{
throw new RemotingException(
String.Format(
CultureInfo.CurrentCulture, Environment.GetResourceString(
"Remoting_InvalidRequestedType"),
requestedType.ToString()));;
}
// Create the type info
if (serverType.IsCOMObject)
{
// __ComObjects need dynamic TypeInfo
DynamicTypeInfo dt = new DynamicTypeInfo(typeOfObj);
TypeInfo = (IRemotingTypeInfo)dt;
}
else
{
RemotingTypeCachedData cache = (RemotingTypeCachedData)
InternalRemotingServices.GetReflectionCachedData(typeOfObj);
TypeInfo = (IRemotingTypeInfo)cache.TypeInfo;
}
if (!idObj.IsWellKnown())
{
// Create the envoy info
EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);
// Create the channel info
IChannelInfo chan = (IChannelInfo) new ChannelInfo();
// Make sure the channelInfo only has x-appdomain data since the objref is agile while other
// channelData might not be and regardless this data is useless for an appdomain proxy
if (o is AppDomain)
{
Object[] channelData = chan.ChannelData;
int channelDataLength = channelData.Length;
Object[] newChannelData = new Object[channelDataLength];
// Clone the data so that we dont Microsoft the current appdomain data which is stored
// as a static
Array.Copy(channelData, newChannelData, channelDataLength);
for (int i = 0; i < channelDataLength; i++)
{
if (!(newChannelData[i] is CrossAppDomainData))
{
newChannelData[i] = null;
}
}
chan.ChannelData = newChannelData;
}
ChannelInfo = chan;
if (serverType.HasProxyAttribute)
{
SetHasProxyAttribute();
}
}
else
{
SetWellKnown();
}
// See if we should and can use a url obj ref?
if (ShouldUseUrlObjRef())
{
if (IsWellKnown())
{
// full uri already supplied.
SetObjRefLite();
}
else
{
String httpUri = ChannelServices.FindFirstHttpUrlForObject(URI);
if (httpUri != null)
{
URI = httpUri;
SetObjRefLite();
}
}
}
} // Init
[System.Security.SecurityCritical] // auto-generated
internal void Init(Object o, Identity idObj, RuntimeType requestedType)
{
Message.DebugOut("RemotingServices::FillObjRef: IN");
BCLDebug.Assert(idObj != null,"idObj != null");
// Set the URI of the object to be marshaled
uri = idObj.URI;
// Figure out the type
MarshalByRefObject obj = idObj.TPOrObject;
BCLDebug.Assert(null != obj, "Identity not setup correctly");
// Get the type of the object
RuntimeType serverType = null;
if(!RemotingServices.IsTransparentProxy(obj))
{
serverType = (RuntimeType)obj.GetType();
}
else
{
serverType = (RuntimeType)RemotingServices.GetRealProxy(obj).GetProxiedType();
}
RuntimeType typeOfObj = (null == requestedType ? serverType : requestedType);
// Make sure that the server and requested types are compatible
// (except for objects that implement IMessageSink, since we
// just hand off the message instead of invoking the proxy)
if ((null != requestedType) &&
!requestedType.IsAssignableFrom(serverType) &&
(!typeof(IMessageSink).IsAssignableFrom(serverType)))
{
throw new RemotingException(
String.Format(
CultureInfo.CurrentCulture, Environment.GetResourceString(
"Remoting_InvalidRequestedType"),
requestedType.ToString())); ;
}
#if FEATURE_COMINTEROP
// Create the type info
if(serverType.IsCOMObject)
{
// __ComObjects need dynamic TypeInfo
DynamicTypeInfo dt = new DynamicTypeInfo(typeOfObj);
TypeInfo = (IRemotingTypeInfo) dt;
}
else
#endif // FEATURE_COMINTEROP
{
RemotingTypeCachedData cache = (RemotingTypeCachedData)
InternalRemotingServices.GetReflectionCachedData(typeOfObj);
TypeInfo = (IRemotingTypeInfo)cache.TypeInfo;
}
if (!idObj.IsWellKnown())
{
// Create the envoy info
EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);
// Create the channel info
IChannelInfo chan = (IChannelInfo)new ChannelInfo();
// Make sure the channelInfo only has x-appdomain data since the objref is agile while other
// channelData might not be and regardless this data is useless for an appdomain proxy
if (o is AppDomain){
Object[] channelData = chan.ChannelData;
int channelDataLength = channelData.Length;
Object[] newChannelData = new Object[channelDataLength];
// Clone the data so that we dont [....] the current appdomain data which is stored
// as a static
Array.Copy(channelData, newChannelData, channelDataLength);
for (int i = 0; i < channelDataLength; i++)
{
if (!(newChannelData[i] is CrossAppDomainData))
newChannelData[i] = null;
}
chan.ChannelData = newChannelData;
}
ChannelInfo = chan;
if (serverType.HasProxyAttribute)
{
SetHasProxyAttribute();
}
}
else
{
SetWellKnown();
}
// See if we should and can use a url obj ref?
if (ShouldUseUrlObjRef())
{
if (IsWellKnown())
{
// full uri already supplied.
SetObjRefLite();
}
else
{
String httpUri = ChannelServices.FindFirstHttpUrlForObject(URI);
if (httpUri != null)
{
URI = httpUri;
SetObjRefLite();
}
}
}
} // Init
private static string MakeURIKey(string uri)
{
return(Identity.RemoveAppNameOrAppGuidIfNecessary(uri.ToLower(CultureInfo.InvariantCulture)));
}
internal static void SetMessageTargetIdentity (IMessage msg, Identity ident)
{
if (msg is IInternalMessage)
((IInternalMessage)msg).TargetIdentity = ident;
}
private static string MakeURIKeyNoLower(string uri)
{
return(Identity.RemoveAppNameOrAppGuidIfNecessary(uri));
}
[System.Security.SecurityCritical] // auto-generated
private static Object GetOrCreateProxy(Type classToProxy, Identity idObj)
{
Message.DebugOut("Entering GetOrCreateProxy for given class\n");
Object proxy = idObj.TPOrObject;
if (null == proxy)
{
// Create the proxy
proxy = SetOrCreateProxy(idObj, classToProxy, null);
}
// proxy from idObj may be non-null if we are doing a Connect
// under new XXX() ... also if we are connecting to a remote URL
// which we previously connected.
// If we are in the same domain as the server object then we
// can check for type compatibility of the proxy with the given
// type. Otherwise, we will defer this check to method call time.
// If we do not do this now then we run the risk of returning
// a proxy which is different from the type given.
// <
ServerIdentity serverID = idObj as ServerIdentity;
if (null != serverID)
{
// Check for type compatibility
Type serverType = serverID.ServerType;
if (!classToProxy.IsAssignableFrom(serverType))
{
throw new InvalidCastException(
String.Format(
CultureInfo.CurrentCulture, Environment.GetResourceString(
"InvalidCast_FromTo"),
serverType.FullName,
classToProxy.FullName));
}
}
// At this point we should have a non-null transparent proxy
BCLDebug.Assert(null != proxy && IsTransparentProxy(proxy),"null != proxy && IsTransparentProxy(proxy)");
Message.DebugOut("Leaving GetOrCreateProxy for given class\n");
return proxy;
}
private static Identity SetIdentity(Identity idObj, string URI, DuplicateIdentityOption duplicateOption)
{
bool flag = idObj is ServerIdentity;
if (idObj.URI == null)
{
idObj.SetOrCreateURI(URI);
if (idObj.ObjectRef != null)
{
idObj.ObjectRef.URI = idObj.URI;
}
}
string key = MakeURIKey(idObj.URI);
object obj2 = URITable[key];
if (obj2 != null)
{
bool flag2;
WeakReference reference = obj2 as WeakReference;
Identity target = null;
if (reference != null)
{
target = (Identity)reference.Target;
flag2 = target is ServerIdentity;
}
else
{
target = (Identity)obj2;
flag2 = target is ServerIdentity;
}
if ((target != null) && (target != idObj))
{
switch (duplicateOption)
{
case DuplicateIdentityOption.Unique:
{
string uRI = idObj.URI;
throw new RemotingException(Environment.GetResourceString("Remoting_URIClash", new object[] { uRI }));
}
case DuplicateIdentityOption.UseExisting:
idObj = target;
return(idObj);
}
return(idObj);
}
if (reference != null)
{
if (flag2)
{
URITable[key] = idObj;
return(idObj);
}
reference.Target = idObj;
}
return(idObj);
}
object obj3 = null;
if (flag)
{
obj3 = idObj;
((ServerIdentity)idObj).SetHandle();
}
else
{
obj3 = new WeakReference(idObj);
}
URITable.Add(key, obj3);
idObj.SetInIDTable();
SetIDCount++;
if ((SetIDCount % 0x40) == 0)
{
CleanupIdentities(null);
}
return(idObj);
}
} // CreateChannelSinks
internal static void SetEnvoyAndChannelSinks(Identity idObj,
IMessageSink chnlSink,
IMessageSink envoySink)
{
Message.DebugOut("Setting up envoy and channel sinks \n");
BCLDebug.Assert(null != idObj,"null != idObj");
// Decide if we need to set the envoy sink chain
if (null == idObj.ChannelSink)
{
if (null != chnlSink)
{
idObj.RaceSetChannelSink(chnlSink);
}
}
// Decide if we need to set the envoy sink chain
if (null == idObj.EnvoyChain)
{
if (null != envoySink)
{
idObj.RaceSetEnvoyChain(envoySink);
}
else
{
throw new RemotingException(
String.Format(
CultureInfo.CurrentCulture, Environment.GetResourceString(
"Remoting_BadInternalState_FailEnvoySink")));
}
}
}
internal IMessageSink GetServerObjectChain(out MarshalByRefObject obj)
{
obj = null;
// NOTE: Lifetime relies on the Identity flags for
// SingleCall and Singleton being set by the time this getter
// is called.
if (!this.IsSingleCall())
{
// This is the common case
if (_serverObjectChain == null)
{
lock (this)
{
if (_serverObjectChain == null)
{
MarshalByRefObject srvObj =
(MarshalByRefObject)
this.TPOrObject;
_serverObjectChain =
_srvCtx.CreateServerObjectChain(
srvObj);
}
}
}
BCLDebug.Assert(null != _serverObjectChain,
"null != _serverObjectChain");
return(_serverObjectChain);
}
else
{
// ---------- SINGLE CALL WKO --------------
// In this case, we are expected to provide
// a fresh server object for each dispatch.
// Since the server object chain is object
// specific, we must create a fresh chain too.
// We must be in the correct context for this
// to succeed.
// NOTE: It may be useful to recycle the context too
// but for V1 we will keep the context we setup for
// the first object around and always dispatch the call
// through that context ... when we are here we have
// already been through the server sink chain. We will
// only dispatch through the object sink chain of the
// object we will create below ... if for some reason
// the object creates its own context we will not go
// through the server sink chain for that context again.
// We should fix this in V-next and always create everything
// from scratch for single-call wellKnown objects
BCLDebug.Assert(Thread.CurrentContext == _srvCtx,
"Bad context mismatch");
MarshalByRefObject srvObj = null;
IMessageSink objChain = null;
if (_tpOrObject != null && _firstCallDispatched == 0 && Interlocked.CompareExchange(ref _firstCallDispatched, 1, 0) == 0)
{
// use the instance of server object created to
// set up the pipeline.
srvObj = (MarshalByRefObject)_tpOrObject;
objChain = _serverObjectChain;
if (objChain == null)
{
objChain = _srvCtx.CreateServerObjectChain(srvObj);
}
}
else
{
// For singleCall we create a fresh object & its chain
// on each dispatch!
srvObj = (MarshalByRefObject)
Activator.CreateInstance((Type)_srvType, true);
// make sure that object didn't Marshal itself.
// (well known objects should live up to their promise
// of exporting themselves through exactly one url)
String tempUri = RemotingServices.GetObjectUri(srvObj);
if (tempUri != null)
{
throw new RemotingException(
String.Format(
Environment.GetResourceString(
"Remoting_WellKnown_CtorCantMarshal"),
this.URI));
}
// Set the identity depending on whether we have the server
// or proxy
if (!RemotingServices.IsTransparentProxy(srvObj))
{
#if _DEBUG
Identity idObj = srvObj.__RaceSetServerIdentity(this);
#else
srvObj.__RaceSetServerIdentity(this);
#endif
#if _DEBUG
BCLDebug.Assert(idObj == this, "Bad ID state!");
BCLDebug.Assert(idObj == MarshalByRefObject.GetIdentity(srvObj), "Bad ID state!");
#endif
}
else
{
RealProxy rp = null;
rp = RemotingServices.GetRealProxy(srvObj);
BCLDebug.Assert(null != rp, "null != rp");
// #if _DEBUG
// Identity idObj = (ServerIdentity) rp.SetIdentity(this);
// #else
rp.IdentityObject = this;
// #endif
#if _DEBUG
// REVIEW: turn these on after adding a clean way to
// reset identity-s on x-context proxies ... (id needs
// to be set in the proxy && on the _serverObject in
// the proxy)
// BCLDebug.Assert(idObj == this, "Bad ID state!" );
// BCLDebug.Assert(idObj == rp.IdentityObject, "Bad ID state!" );
#endif
}
// Create the object chain and return it
objChain = _srvCtx.CreateServerObjectChain(srvObj);
}
// This is passed out to the caller so that for single-call
// case we can call Dispose when the incoming call is done
obj = srvObj;
return(objChain);
}
}
internal RealProxy (Type classToProxy, ClientIdentity identity) : this(classToProxy, IntPtr.Zero, null)
{
_objectIdentity = identity;
}
// Set the URI to use to marshal an object.
public static void SetObjectUriForMarshal
(MarshalByRefObject obj, String uri)
{
if(obj == null)
{
return;
}
Identity id = obj.GetIdentity();
if(id != null)
{
// Update the object's current identity.
if(id.otherAppDomain)
{
throw new RemotingException(_("Remoting_NotLocal"));
}
if(id.uri != null)
{
throw new RemotingException(_("Remoting_HasIdentity"));
}
id.uri = uri;
}
else
{
// Create a new identity for the object and set it.
id = new Identity();
id.uri = uri;
id.context = Thread.CurrentContext;
id.otherAppDomain = false;
obj.SetIdentity(id);
}
}
[System.Security.SecurityCritical] // auto-generated
private static Identity SetIdentity(
Identity idObj, String URI, DuplicateIdentityOption duplicateOption)
{
// NOTE: This function assumes that a lock has been taken
// by the calling function
// idObj could be for a transparent proxy or a server object
Message.DebugOut("SetIdentity:: domainid: " + Thread.GetDomainID() + "\n");
Contract.Assert(null != idObj,"null != idObj");
// WriterLock must already be taken when SetIdentity is called!
Contract.Assert(
TableLock.IsWriterLockHeld,
"Should have write-locked the ID Table!");
// flag to denote that the id being set is a ServerIdentity
bool bServerIDSet = idObj is ServerIdentity;
if (null == idObj.URI)
{
// No URI has been associated with this identity. It must be a
// server identity getting marshaled out of the app domain for
// the first time.
Contract.Assert(bServerIDSet,"idObj should be ServerIdentity");
// Set the URI on the idObj (generating one if needed)
idObj.SetOrCreateURI(URI);
// If objectref is non-null make sure both have same URIs
// (the URI in the objectRef could have potentially been reset
// in a past external call to Disconnect()
if (idObj.ObjectRef != null)
{
idObj.ObjectRef.URI = idObj.URI;
}
Message.DebugOut("SetIdentity: Generated URI " + URI + " for identity");
}
// If we have come this far then there is no URI to identity
// mapping present. Go ahead and create one.
// ID should have a URI by now.
Contract.Assert(null != idObj.URI,"null != idObj.URI");
// See if this identity is already present in the Uri table
String uriKey = MakeURIKey(idObj.URI);
Object o = URITable[uriKey];
// flag to denote that the id found in the table is a ServerIdentity
bool bServerID;
if (null != o)
{
// We found an identity (or a WeakRef to one) for the URI provided
WeakReference wr = o as WeakReference;
Identity idInTable = null;
if (wr != null)
{
// The object we found is a weak referece to an identity
// This could be an identity for a client side
// proxy
// OR
// a server identity which has been weakened since its life
// is over.
idInTable = (Identity) wr.Target;
bServerID = idInTable is ServerIdentity;
// If we find a weakRef for a ServerId we will be converting
// it to a strong one before releasing the IdTable lock.
Contract.Assert(
(idInTable == null)||
(!bServerID || idInTable.IsRemoteDisconnected()),
"Expect to find WeakRef only for remotely disconnected ids");
// We could find a weakRef to a client ID that does not
// match the idObj .. but that is a handled ---- case
// during Unmarshaling .. SetIdentity() will return the ID
// from the table to the caller.
}
else
{
// We found a non-weak (strong) Identity for the URI
idInTable = (Identity) o;
bServerID = idInTable is ServerIdentity;
//We dont put strong refs to client "Identity"s in the table
Contract.Assert(
bServerID,
"Found client side strong ID in the table");
}
if ((idInTable != null) && (idInTable != idObj))
{
// We are trying to add another identity for the same URI
switch (duplicateOption)
{
case DuplicateIdentityOption.Unique:
{
String tempURI = idObj.URI;
// Throw an exception to indicate the error since this could
// be caused by a user trying to marshal two objects with the same
// URI
throw new RemotingException(
Environment.GetResourceString("Remoting_URIClash",
tempURI));
} // case DuplicateIdentityOption.Unique
case DuplicateIdentityOption.UseExisting:
{
// This would be a case where our thread lost the ----
// we will return the one found in the table
idObj = idInTable;
break;
} // case DuplicateIdentityOption.UseExisting:
default:
{
Contract.Assert(false, "Invalid DuplicateIdentityOption");
break;
}
} // switch (duplicateOption)
}
else
if (wr!=null)
{
// We come here if we found a weakRef in the table but
// the target object had been cleaned up
// OR
// If there was a weakRef in the table and the target
// object matches the idObj just passed in
// Strengthen the entry if it a ServerIdentity.
if (bServerID)
{
URITable[uriKey] = idObj;
}
else
{
// For client IDs associate the table entry
// with the one passed in.
// (If target was null we would set it ...
// if was non-null then it matches idObj anyway)
wr.Target = idObj;
}
}
}
else
{
// We did not find an identity entry for the URI
Object addMe = null;
if (bServerIDSet)
{
addMe = idObj;
((ServerIdentity)idObj).SetHandle();
}
else
{
addMe = new WeakReference(idObj);
}
// Add the entry into the table
URITable.Add(uriKey, addMe);
idObj.SetInIDTable();
// After every fixed number of set-id calls we run through
// the table and cleanup if needed.
SetIDCount++;
if (SetIDCount % CleanUpCountInterval == 0)
{
// This should be called with the write lock held!
// (which is why we assert that at the beginning of this
// method)
CleanupIdentities(null);
}
}
Message.DebugOut("SetIdentity:: Identity::URI: " + idObj.URI + "\n");
return idObj;
}
private static Identity SetIdentity(Identity idObj, string URI, DuplicateIdentityOption duplicateOption)
{
bool flag = idObj is ServerIdentity;
if (idObj.URI == null)
{
idObj.SetOrCreateURI(URI);
if (idObj.ObjectRef != null)
{
idObj.ObjectRef.URI = idObj.URI;
}
}
string key = MakeURIKey(idObj.URI);
object obj2 = URITable[key];
if (obj2 != null)
{
bool flag2;
WeakReference reference = obj2 as WeakReference;
Identity target = null;
if (reference != null)
{
target = (Identity) reference.Target;
flag2 = target is ServerIdentity;
}
else
{
target = (Identity) obj2;
flag2 = target is ServerIdentity;
}
if ((target != null) && (target != idObj))
{
switch (duplicateOption)
{
case DuplicateIdentityOption.Unique:
{
string uRI = idObj.URI;
throw new RemotingException(Environment.GetResourceString("Remoting_URIClash", new object[] { uRI }));
}
case DuplicateIdentityOption.UseExisting:
idObj = target;
return idObj;
}
return idObj;
}
if (reference != null)
{
if (flag2)
{
URITable[key] = idObj;
return idObj;
}
reference.Target = idObj;
}
return idObj;
}
object obj3 = null;
if (flag)
{
obj3 = idObj;
((ServerIdentity) idObj).SetHandle();
}
else
{
obj3 = new WeakReference(idObj);
}
URITable.Add(key, obj3);
idObj.SetInIDTable();
SetIDCount++;
if ((SetIDCount % 0x40) == 0)
{
CleanupIdentities(null);
}
return idObj;
}
