internal static Identity FindOrCreateIdentity(string objURI, string URL, ObjRef objectRef)
{
Identity identity = null;
bool flag = URL != null;
identity = IdentityHolder.ResolveIdentity(flag ? URL : objURI);
if (flag && identity != null && identity is ServerIdentity)
{
throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_WellKnown_CantDirectlyConnect"), URL));
}
if (identity == null)
{
identity = new Identity(objURI, URL);
ReaderWriterLock tableLock = IdentityHolder.TableLock;
bool flag2 = !tableLock.IsWriterLockHeld;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
if (flag2)
{
tableLock.AcquireWriterLock(int.MaxValue);
}
identity = IdentityHolder.SetIdentity(identity, null, DuplicateIdentityOption.UseExisting);
identity.RaceSetObjRef(objectRef);
}
finally
{
if (flag2 && tableLock.IsWriterLockHeld)
{
tableLock.ReleaseWriterLock();
}
}
}
return(identity);
}
internal void SetOrCreateURI(String uri, bool bIdCtor)
{
if (bIdCtor == false)
{
// This method is called either from the ID Constructor or
// with a writeLock on the ID Table
BCLDebug.Assert(IdentityHolder.IsWriterLockHeld(), "IDTable should be write-locked");
if (null != _ObjURI)
{
throw new RemotingException(
Environment.GetResourceString("Remoting_SetObjectUriForMarshal__UriExists"));
}
}
if (null == uri)
{
// We insert the tick count, so that the uri is not 100% predictable.
// (i.e. perhaps we should consider using a random number as well)
_ObjURI = IDGuidString + Environment.TickCount + "_" + GetNextSeqNum() + ".rem";
}
else
{
if (this is ServerIdentity)
{
_ObjURI = IDGuidString + uri;
}
else
{
_ObjURI = uri;
}
}
} // SetOrCreateURI
internal virtual void AssertValid()
{
if (this.URI != null)
{
Identity identity = IdentityHolder.ResolveIdentity(this.URI);
}
}
internal static Identity ResolveIdentity(string URI)
{
if (URI == null)
{
throw new ArgumentNullException("URI");
}
ReaderWriterLock tableLock = IdentityHolder.TableLock;
bool flag = !tableLock.IsReaderLockHeld;
RuntimeHelpers.PrepareConstrainedRegions();
Identity result;
try
{
if (flag)
{
tableLock.AcquireReaderLock(int.MaxValue);
}
result = IdentityHolder.ResolveReference(IdentityHolder.URITable[IdentityHolder.MakeURIKey(URI)]);
}
finally
{
if (flag && tableLock.IsReaderLockHeld)
{
tableLock.ReleaseReaderLock();
}
}
return(result);
}
internal virtual void AssertValid()
{
if (this.URI == null)
{
return;
}
IdentityHolder.ResolveIdentity(this.URI);
}
internal virtual void AssertValid()
{
if (URI != null)
{
Identity resolvedIdentity = IdentityHolder.ResolveIdentity(URI);
BCLDebug.Assert(
(resolvedIdentity == null) || (resolvedIdentity == this),
"Server ID mismatch with URI");
}
}
internal static ServerIdentity FindOrCreateServerIdentity(MarshalByRefObject obj, string objURI, int flags)
{
bool fServer;
ServerIdentity serverIdentity1 = (ServerIdentity)MarshalByRefObject.GetIdentity(obj, out fServer);
if (serverIdentity1 == null)
{
Context serverCtx = !(obj is ContextBoundObject) ? IdentityHolder.DefaultContext : Thread.CurrentContext;
ServerIdentity id = new ServerIdentity(obj, serverCtx);
if (fServer)
{
serverIdentity1 = obj.__RaceSetServerIdentity(id);
}
else
{
RealProxy realProxy = RemotingServices.GetRealProxy((object)obj);
ServerIdentity serverIdentity2 = id;
realProxy.IdentityObject = (Identity)serverIdentity2;
serverIdentity1 = (ServerIdentity)realProxy.IdentityObject;
}
if (IdOps.bIsInitializing(flags))
{
serverIdentity1.IsInitializing = true;
}
}
if (IdOps.bStrongIdentity(flags))
{
ReaderWriterLock tableLock = IdentityHolder.TableLock;
bool flag = !tableLock.IsWriterLockHeld;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
if (flag)
{
tableLock.AcquireWriterLock(int.MaxValue);
}
if (serverIdentity1.ObjURI == null || !serverIdentity1.IsInIDTable())
{
IdentityHolder.SetIdentity((Identity)serverIdentity1, objURI, DuplicateIdentityOption.Unique);
}
if (serverIdentity1.IsDisconnected())
{
serverIdentity1.SetFullyConnected();
}
}
finally
{
if (flag && tableLock.IsWriterLockHeld)
{
tableLock.ReleaseWriterLock();
}
}
}
return(serverIdentity1);
}
internal static Identity CasualResolveIdentity(string uri)
{
if (uri == null)
{
return(null);
}
Identity identity = IdentityHolder.CasualResolveReference(IdentityHolder.URITable[IdentityHolder.MakeURIKeyNoLower(uri)]);
if (identity == null)
{
identity = IdentityHolder.CasualResolveReference(IdentityHolder.URITable[IdentityHolder.MakeURIKey(uri)]);
if (identity == null || identity.IsInitializing)
{
identity = RemotingConfigHandler.CreateWellKnownObject(uri);
}
}
return(identity);
}
internal void AddWellKnownEntry(WellKnownServiceTypeEntry entry, bool fReplace)
{
if (this.CheckForRedirectedClientType(entry.TypeName, entry.AssemblyName))
{
throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_Config_CantUseRedirectedTypeForWellKnownService"), new object[] { entry.TypeName, entry.AssemblyName }));
}
string key = entry.ObjectUri.ToLower(CultureInfo.InvariantCulture);
if (fReplace)
{
this._wellKnownExportInfo[key] = entry;
IdentityHolder.RemoveIdentity(entry.ObjectUri);
}
else
{
this._wellKnownExportInfo.Add(key, entry);
}
}
internal static void RemoveIdentity(string uri, bool bResetURI)
{
string str = IdentityHolder.MakeURIKey(uri);
ReaderWriterLock tableLock = IdentityHolder.TableLock;
bool flag = !tableLock.IsWriterLockHeld;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
if (flag)
{
tableLock.AcquireWriterLock(int.MaxValue);
}
object obj = IdentityHolder.URITable[(object)str];
WeakReference weakReference = obj as WeakReference;
Identity identity;
if (weakReference != null)
{
identity = (Identity)weakReference.Target;
weakReference.Target = (object)null;
}
else
{
identity = (Identity)obj;
if (identity != null)
{
((ServerIdentity)identity).ResetHandle();
}
}
if (identity == null)
{
return;
}
IdentityHolder.URITable.Remove((object)str);
identity.ResetInIDTable(bResetURI);
}
finally
{
if (flag && tableLock.IsWriterLockHeld)
{
tableLock.ReleaseWriterLock();
}
}
}
internal void ResetInIDTable(bool bResetURI)
{
BCLDebug.Assert(IdentityHolder.IsWriterLockHeld(), "IDTable should be write-locked");
while (true)
{
int currentFlags = _flags;
int newFlags = _flags & (~IDFLG_IN_IDTABLE);
if (currentFlags == Interlocked.CompareExchange(ref _flags, newFlags, currentFlags))
{
break;
}
}
// bResetURI is true for the external API call to Disconnect, it is
// false otherwise. Thus when a user Disconnects an object
// its URI will get reset but if lifetime service times it out
// it will not clear out the URIs
if (bResetURI)
{
((ObjRef)_objRef).URI = null;
_ObjURI = null;
}
}
internal static void FlushIdentityTable()
{
ReaderWriterLock tableLock = IdentityHolder.TableLock;
bool flag = !tableLock.IsWriterLockHeld;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
if (flag)
{
tableLock.AcquireWriterLock(int.MaxValue);
}
IdentityHolder.CleanupIdentities(null);
}
finally
{
if (flag && tableLock.IsWriterLockHeld)
{
tableLock.ReleaseWriterLock();
}
}
}
internal static void RemoveIdentity(string uri)
{
IdentityHolder.RemoveIdentity(uri, true);
}
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 = IdentityHolder.MakeURIKey(idObj.URI);
object obj = IdentityHolder.URITable[key];
if (obj != null)
{
WeakReference weakReference = obj as WeakReference;
Identity identity;
bool flag2;
if (weakReference != null)
{
identity = (Identity)weakReference.Target;
flag2 = (identity is ServerIdentity);
}
else
{
identity = (Identity)obj;
flag2 = (identity is ServerIdentity);
}
if (identity != null && identity != idObj)
{
if (duplicateOption == DuplicateIdentityOption.Unique)
{
string uri = idObj.URI;
throw new RemotingException(Environment.GetResourceString("Remoting_URIClash", new object[]
{
uri
}));
}
if (duplicateOption == DuplicateIdentityOption.UseExisting)
{
idObj = identity;
}
}
else if (weakReference != null)
{
if (flag2)
{
IdentityHolder.URITable[key] = idObj;
}
else
{
weakReference.Target = idObj;
}
}
}
else
{
object value;
if (flag)
{
value = idObj;
((ServerIdentity)idObj).SetHandle();
}
else
{
value = new WeakReference(idObj);
}
IdentityHolder.URITable.Add(key, value);
idObj.SetInIDTable();
IdentityHolder.SetIDCount++;
if (IdentityHolder.SetIDCount % 64 == 0)
{
IdentityHolder.CleanupIdentities(null);
}
}
return(idObj);
}
internal ServerIdentity StartupWellKnownObject(string asmName, string svrTypeName, string URI, WellKnownObjectMode mode, bool fReplace)
{
lock (s_wkoStartLock)
{
MarshalByRefObject obj2 = null;
ServerIdentity identity = null;
Type type = LoadType(svrTypeName, asmName);
if (!type.IsMarshalByRef)
{
throw new RemotingException(Environment.GetResourceString("Remoting_WellKnown_MustBeMBR", new object[] { svrTypeName }));
}
identity = (ServerIdentity)IdentityHolder.ResolveIdentity(URI);
if ((identity != null) && identity.IsRemoteDisconnected())
{
IdentityHolder.RemoveIdentity(URI);
identity = null;
}
if (identity == null)
{
s_fullTrust.Assert();
try
{
obj2 = (MarshalByRefObject)Activator.CreateInstance(type, true);
if (RemotingServices.IsClientProxy(obj2))
{
RedirectionProxy proxy = new RedirectionProxy(obj2, type)
{
ObjectMode = mode
};
RemotingServices.MarshalInternal(proxy, URI, type);
identity = (ServerIdentity)IdentityHolder.ResolveIdentity(URI);
identity.SetSingletonObjectMode();
}
else if (type.IsCOMObject && (mode == WellKnownObjectMode.Singleton))
{
ComRedirectionProxy proxy2 = new ComRedirectionProxy(obj2, type);
RemotingServices.MarshalInternal(proxy2, URI, type);
identity = (ServerIdentity)IdentityHolder.ResolveIdentity(URI);
identity.SetSingletonObjectMode();
}
else
{
if (RemotingServices.GetObjectUri(obj2) != null)
{
throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_WellKnown_CtorCantMarshal"), new object[] { URI }));
}
RemotingServices.MarshalInternal(obj2, URI, type);
identity = (ServerIdentity)IdentityHolder.ResolveIdentity(URI);
if (mode == WellKnownObjectMode.SingleCall)
{
identity.SetSingleCallObjectMode();
}
else
{
identity.SetSingletonObjectMode();
}
}
}
catch
{
throw;
}
finally
{
CodeAccessPermission.RevertAssert();
}
}
return(identity);
}
}
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);
}
