private LogicalCallContext FetchLogicalCallContext()
{
ConstructorCallMessage message = this._ccmsg as ConstructorCallMessage;
if (message != null)
{
return(message.GetLogicalCallContext());
}
if (!(this._ccmsg is ConstructionCall))
{
throw new RemotingException(Environment.GetResourceString("Remoting_Message_BadType"));
}
return(((MethodCall)this._ccmsg).GetLogicalCallContext());
}
[System.Security.SecurityCritical] // auto-generated
private void PrivateInvoke(ref MessageData msgData, int type)
{
IMessage reqMsg = null;
CallType callType = (CallType)type;
IMessage retMsg = null;
int msgFlags = -1;
// Used only for Construction case
RemotingProxy rp = null;
// Create a message object based on the type of call
if(CallType.MethodCall == callType)
{
Message msg = new Message();
msg.InitFields(msgData);
reqMsg = msg;
msgFlags = msg.GetCallType();
}
else if (CallType.ConstructorCall == (CallType)callType)
{
// We use msgFlags to handle CallContext around
// the virtual call to Invoke()
msgFlags = Message.Sync;
rp = this as RemotingProxy;
ConstructorCallMessage ctorMsg = null;
bool bIsWellKnown = false;
if(!IsRemotingProxy())
{
// Create a new constructor call message
// <
ctorMsg = new ConstructorCallMessage(null, null, null, (RuntimeType)GetProxiedType());
}
else
{
// Extract the constructor message set in the first step of activation.
ctorMsg = rp.ConstructorMessage;
// If the proxy is a wellknown client proxy, we don't
// need to run the c'tor.
Identity id = rp.IdentityObject;
if (id != null)
bIsWellKnown = id.IsWellKnown();
}
if ((null == ctorMsg) || bIsWellKnown)
{
// This is also used to short-circuit the activation path
// when we have a well known proxy that has already been
// initialized (there's a race condition if we don't do this).
//
// This is a special case, where we have a remoting proxy
// but the constructormessage hasn't been setup.
// so let us just bail out..
// this is currently used by ServicedComponent's for cross appdomain
// pooling: <EMAIL>Microsoft</EMAIL>
//
ctorMsg = new ConstructorCallMessage(null, null, null, (RuntimeType)GetProxiedType());
// Set the constructor frame info in the CCM
ctorMsg.SetFrame(msgData);
reqMsg = ctorMsg;
// If this was the default ctor, check that default .ctor was called.
if (bIsWellKnown)
{
Contract.Assert(rp!=null, "RemotingProxy expected here!");
// Clear any cached ctorMsg on the RemotingProxy
rp.ConstructorMessage = null;
// We did execute a Connect. Throw if the client
// code is also trying to use a non-default constructor at
// the same time.
if (ctorMsg.ArgCount != 0)
{
throw new RemotingException(
Environment.GetResourceString(
"Remoting_Activation_WellKnownCTOR"));
}
}
// Create a constructor return message
retMsg =
new ConstructorReturnMessage((MarshalByRefObject)GetTransparentProxy(),
null,
0,
null,
ctorMsg);
}
else
{
// Set the constructor frame info in the CCM
ctorMsg.SetFrame(msgData);
reqMsg = ctorMsg;
}
}
else
{
Contract.Assert(false, "Unknown call type");
}
// Make sure that outgoing remote calls are counted.
ChannelServices.IncrementRemoteCalls();
// For non-remoting proxies, EndAsync should not call Invoke()
// because the proxy cannot support Async and the call has already
// finished executing in BeginAsync
if (!IsRemotingProxy()
&& ((msgFlags&Message.EndAsync)==Message.EndAsync))
{
Message msg = reqMsg as Message;
retMsg = EndInvokeHelper(msg, true);
Contract.Assert(null != retMsg, "null != retMsg");
}
// Invoke
Contract.Assert(null != reqMsg, "null != reqMsg");
if (null == retMsg)
{
// NOTE: there are cases where we setup a return message
// and we don't want the activation call to go through
// refer to the note above for ServicedComponents and Cross Appdomain
// pooling
LogicalCallContext cctx = null;
Thread currentThread = Thread.CurrentThread;
// Pick up or clone the call context from the thread
// and install it in the reqMsg as appropriate
cctx = currentThread.GetMutableExecutionContext().LogicalCallContext;
SetCallContextInMessage(reqMsg, msgFlags, cctx);
// Add the outgoing "Header"'s to the message.
cctx.PropagateOutgoingHeadersToMessage(reqMsg);
retMsg = Invoke(reqMsg);
// Get the call context returned and set it on the thread
ReturnCallContextToThread(currentThread, retMsg, msgFlags, cctx);
// Pull response "Header"'s out of the message
Thread.CurrentThread.GetMutableExecutionContext().LogicalCallContext.PropagateIncomingHeadersToCallContext(retMsg);
}
if (!IsRemotingProxy()
&& ((msgFlags&Message.BeginAsync) == Message.BeginAsync))
{
// This was a begin-async on a non-Remoting Proxy. For V-1 they
// cannot support Async and end up doing a Sync call. We need
// to fill up here to make the call look like async to
// the caller.
// Create the async result to return
Message msg = reqMsg as Message;
AsyncResult ar = new AsyncResult(msg);
// Tell the async result that the call has actually completed
// so it can hold on to the return message.
ar.SyncProcessMessage(retMsg);
// create a returnMessage to propagate just the asyncResult back
// to the caller's stack.
retMsg = new ReturnMessage(ar, null, 0, null/*cctx*/, msg);
}
// Propagate out parameters
HandleReturnMessage(reqMsg, retMsg);
// For constructor calls do some extra bookkeeping
if(CallType.ConstructorCall == callType)
{
// NOTE: It is the responsiblity of the callee to propagate
// the out parameters
// Everything went well, we are ready to return
// a proxy to the caller
// Extract the return value
MarshalByRefObject retObj = null;
IConstructionReturnMessage ctorRetMsg = retMsg as IConstructionReturnMessage;
if(null == ctorRetMsg)
{
throw new RemotingException(
Environment.GetResourceString("Remoting_Proxy_BadReturnTypeForActivation"));
}
ConstructorReturnMessage crm = ctorRetMsg as ConstructorReturnMessage;
if (null != crm)
{
// If return message is of type ConstructorReturnMessage
// this is an in-appDomain activation. So no unmarshaling
// needed.
retObj = (MarshalByRefObject)crm.GetObject();
if (retObj == null)
{
throw new RemotingException(
Environment.GetResourceString("Remoting_Activation_NullReturnValue"));
}
}
else
{
// Fetch the objRef out of the returned message and unmarshal it
retObj = (MarshalByRefObject)RemotingServices.InternalUnmarshal(
(ObjRef)ctorRetMsg.ReturnValue,
GetTransparentProxy(),
true /*fRefine*/);
if (retObj == null)
{
throw new RemotingException(
Environment.GetResourceString("Remoting_Activation_NullFromInternalUnmarshal"));
}
}
if (retObj != (MarshalByRefObject)GetTransparentProxy())
{
throw new RemotingException(
Environment.GetResourceString(
"Remoting_Activation_InconsistentState"));
}
if (IsRemotingProxy())
{
// Clear any cached ctorMsg on the RemotingProxy
rp.ConstructorMessage = null;
}
}
}
[System.Security.SecurityCritical] // auto-generated
private static bool IsCurrentContextOK(RuntimeType serverType, Object[] props,
ref ConstructorCallMessage ctorCallMsg)
{
//Get callSite attributes
Object[] callSiteAttr = PeekActivationAttributes(serverType);
// Clear from the attribute stack
if (callSiteAttr != null)
{
PopActivationAttributes(serverType);
}
Object[] womAttr = new Object[1];
womAttr[0] = GetGlobalAttribute();
// Get the type context attributes
Object[] typeAttr = GetContextAttributesForType(serverType);
// Get the client context (current context)
Context cliCtx = Thread.CurrentContext;
// Create a ctorCallMsg with the reqd info
ctorCallMsg =
new ConstructorCallMessage(
callSiteAttr,
womAttr,
typeAttr,
serverType);
// This is the activator that handles activation in *all* cases
// Based on whether what the activation attributes do.... other
// activators may get chained ahead of this one and may take
// over the activation process... (possibly) delegating to this
// only in the last stage.
// Note: currently, this does not get used in the same context (MBR)
// scenarios ... because of the 2-step activation model of JIT.
ctorCallMsg.Activator = new ConstructionLevelActivator();
// Ask all attributes if they are happy with the current context
// NOTE: if someone says no, we do not ask the rest of the attributes
// This is why, womAttr (which is the global activation service
// attribute) *must* be the first one we query.
bool bCtxOK = QueryAttributesIfContextOK(cliCtx,
ctorCallMsg,
womAttr);
if (bCtxOK == true)
{
bCtxOK = QueryAttributesIfContextOK(cliCtx,
ctorCallMsg,
callSiteAttr);
if (bCtxOK == true)
{
bCtxOK = QueryAttributesIfContextOK(cliCtx,
ctorCallMsg,
typeAttr);
}
}
return bCtxOK;
}
private void PrivateInvoke(ref MessageData msgData, int type)
{
IMessage reqMsg = null;
CallType type2 = (CallType) type;
IMessage retMsg = null;
int msgFlags = -1;
RemotingProxy proxy = null;
if (CallType.MethodCall == type2)
{
Message message3 = new Message();
message3.InitFields(msgData);
reqMsg = message3;
msgFlags = message3.GetCallType();
}
else if (CallType.ConstructorCall == type2)
{
msgFlags = 0;
proxy = this as RemotingProxy;
ConstructorCallMessage ccm = null;
bool flag = false;
if (!this.IsRemotingProxy())
{
ccm = new ConstructorCallMessage(null, null, null, (RuntimeType) this.GetProxiedType());
}
else
{
ccm = proxy.ConstructorMessage;
Identity identityObject = proxy.IdentityObject;
if (identityObject != null)
{
flag = identityObject.IsWellKnown();
}
}
if ((ccm == null) || flag)
{
ccm = new ConstructorCallMessage(null, null, null, (RuntimeType) this.GetProxiedType());
ccm.SetFrame(msgData);
reqMsg = ccm;
if (flag)
{
proxy.ConstructorMessage = null;
if (ccm.ArgCount != 0)
{
throw new RemotingException(Environment.GetResourceString("Remoting_Activation_WellKnownCTOR"));
}
}
retMsg = new ConstructorReturnMessage((MarshalByRefObject) this.GetTransparentProxy(), null, 0, null, ccm);
}
else
{
ccm.SetFrame(msgData);
reqMsg = ccm;
}
}
ChannelServices.IncrementRemoteCalls();
if (!this.IsRemotingProxy() && ((msgFlags & 2) == 2))
{
Message message5 = reqMsg as Message;
retMsg = EndInvokeHelper(message5, true);
}
if (retMsg == null)
{
LogicalCallContext cctx = null;
Thread currentThread = Thread.CurrentThread;
cctx = currentThread.GetLogicalCallContext();
this.SetCallContextInMessage(reqMsg, msgFlags, cctx);
cctx.PropagateOutgoingHeadersToMessage(reqMsg);
retMsg = this.Invoke(reqMsg);
this.ReturnCallContextToThread(currentThread, retMsg, msgFlags, cctx);
CallContext.GetLogicalCallContext().PropagateIncomingHeadersToCallContext(retMsg);
}
if (!this.IsRemotingProxy() && ((msgFlags & 1) == 1))
{
Message m = reqMsg as Message;
AsyncResult ret = new AsyncResult(m);
ret.SyncProcessMessage(retMsg);
retMsg = new ReturnMessage(ret, null, 0, null, m);
}
HandleReturnMessage(reqMsg, retMsg);
if (CallType.ConstructorCall == type2)
{
MarshalByRefObject obj2 = null;
IConstructionReturnMessage message7 = retMsg as IConstructionReturnMessage;
if (message7 == null)
{
throw new RemotingException(Environment.GetResourceString("Remoting_Proxy_BadReturnTypeForActivation"));
}
ConstructorReturnMessage message8 = message7 as ConstructorReturnMessage;
if (message8 != null)
{
obj2 = (MarshalByRefObject) message8.GetObject();
if (obj2 == null)
{
throw new RemotingException(Environment.GetResourceString("Remoting_Activation_NullReturnValue"));
}
}
else
{
obj2 = (MarshalByRefObject) RemotingServices.InternalUnmarshal((ObjRef) message7.ReturnValue, this.GetTransparentProxy(), true);
if (obj2 == null)
{
throw new RemotingException(Environment.GetResourceString("Remoting_Activation_NullFromInternalUnmarshal"));
}
}
if (obj2 != ((MarshalByRefObject) this.GetTransparentProxy()))
{
throw new RemotingException(Environment.GetResourceString("Remoting_Activation_InconsistentState"));
}
if (this.IsRemotingProxy())
{
proxy.ConstructorMessage = null;
}
}
}
private static bool IsCurrentContextOK(RuntimeType serverType, object[] props, ref ConstructorCallMessage ctorCallMsg)
{
object[] callSiteActivationAttributes = PeekActivationAttributes(serverType);
if (callSiteActivationAttributes != null)
{
PopActivationAttributes(serverType);
}
object[] womAttr = new object[] { GetGlobalAttribute() };
object[] contextAttributesForType = GetContextAttributesForType(serverType);
Context currentContext = Thread.CurrentContext;
ctorCallMsg = new ConstructorCallMessage(callSiteActivationAttributes, womAttr, contextAttributesForType, serverType);
ctorCallMsg.Activator = new ConstructionLevelActivator();
bool flag = QueryAttributesIfContextOK(currentContext, ctorCallMsg, womAttr);
if (flag)
{
flag = QueryAttributesIfContextOK(currentContext, ctorCallMsg, callSiteActivationAttributes);
if (flag)
{
flag = QueryAttributesIfContextOK(currentContext, ctorCallMsg, contextAttributesForType);
}
}
return flag;
}
// Private method invoked by the transparent proxy
private void PrivateInvoke(ref MessageData msgData, int type)
{
IMessage reqMsg = null;
CallType callType = (CallType)type;
IMessage retMsg = null;
int msgFlags = -1;
// Create a message object based on the type of call
if(CallType.MethodCall == callType)
{
Message msg = new Message();
msg.InitFields(msgData);
reqMsg = msg;
msgFlags = msg.GetCallType();
}
else if (CallType.ConstructorCall == (CallType)callType)
{
// We use msgFlags to handle CallContext around
// the virtual call to Invoke()
msgFlags = Message.Sync;
ConstructorCallMessage ctorMsg = null;
RemotingProxy rp = this as RemotingProxy;
if(null == rp)
{
// Create a new constructor call message
ctorMsg = new ConstructorCallMessage(null, null, null, GetProxiedType());
}
else
{
// Extract the constructor message set in the first step of activation.
ctorMsg = rp.ConstructorMessage;
}
// If the proxy is a wellknown client proxy, we don't need to run the c'tor.
bool bIsWellKnown = false;
if (rp != null)
{
Identity id = rp.IdentityObject;
if (id != null)
bIsWellKnown = id.IsWellKnown();
}
if ((null == ctorMsg) || bIsWellKnown)
{
// This is also used to short-circuit the activation path
// when we have a well known proxy that has already been
// initialized (there's a race condition if we don't do this).
//
// This is a special case, where we have a remoting proxy
// but the constructormessage hasn't been setup.
// so let us just bail out..
// this is currently used by ServicedComponent's for cross appdomain
// pooling:
//
/*
ProxyAttribute pa = null;
BCLDebug.Assert(((pa = ActivationServices.GetProxyAttribute(GetProxiedType()) is Object) || true);
BCLDebug.Assert(pa != null && pa.GetType() != typeof(ProxyAttribute));
*/
ctorMsg = new ConstructorCallMessage(null, null, null, GetProxiedType());
// Set the constructor frame info in the CCM
ctorMsg.SetFrame(msgData);
reqMsg = ctorMsg;
// If this was the default ctor, check that default .ctor was called.
if (bIsWellKnown)
{
// We did execute a Connect. Throw if the client
// code is also trying to use a non-default constructor at
// the same time.
if (ctorMsg.ArgCount != 0)
{
throw new RemotingException(
Environment.GetResourceString(
"Remoting_Activation_WellKnownCTOR"));
}
}
// Create a constructor return message
retMsg =
new ConstructorReturnMessage((MarshalByRefObject)GetTransparentProxy(),
null,
0,
null,
ctorMsg);
}
else
{
// Set the constructor frame info in the CCM
ctorMsg.SetFrame(msgData);
reqMsg = ctorMsg;
}
}
else
{
BCLDebug.Assert(false, "Unknown call type");
}
// Make sure that outgoing remote calls are counted.
ChannelServices.IncrementRemoteCalls();
// Invoke
BCLDebug.Assert(null != reqMsg, "null != reqMsg");
if (null == retMsg)
{
// NOTE: there are cases where we setup a return message
// and we don't want the activation call to go through
// refer to the note above for ServicedComponents and Cross Appdomain
// pooling
LogicalCallContext cctx = null;
Thread currentThread = Thread.CurrentThread;
// Pick up or clone the call context from the thread
// and install it in the reqMsg as appropriate
cctx = currentThread.GetLogicalCallContext();
SetCallContextInMessage(reqMsg, msgFlags, cctx);
// Add the outgoing "Header"'s to the message.
cctx.PropagateOutgoingHeadersToMessage(reqMsg);
retMsg = Invoke(reqMsg);
// Get the call context returned and set it on the thread
ReturnCallContextToThread(currentThread, retMsg, msgFlags);
// Pull response "Header"'s out of the message
CallContext.GetLogicalCallContext().PropagateIncomingHeadersToCallContext(retMsg);
}
// Propagate out parameters
HandleReturnMessage(reqMsg, retMsg);
// For constructor calls do some extra bookkeeping
if(CallType.ConstructorCall == callType)
{
// NOTE: It is the responsiblity of the callee to propagate
// the out parameters
// Everything went well, we are ready to return
// a proxy to the caller
// Extract the return value
MarshalByRefObject retObj = null;
IConstructionReturnMessage ctorRetMsg = retMsg as IConstructionReturnMessage;
if(null == ctorRetMsg)
{
throw new RemotingException(
Environment.GetResourceString("Remoting_Proxy_BadReturnTypeForActivation"));
}
ConstructorReturnMessage crm = ctorRetMsg as ConstructorReturnMessage;
if (null != crm)
{
retObj = (MarshalByRefObject)crm.GetObject();
if (retObj == null)
{
throw new RemotingException(
Environment.GetResourceString("Remoting_Activation_NullReturnValue"));
}
}
else
{
// Fetch the objRef out of the returned message and unmarshal it
retObj = (MarshalByRefObject)RemotingServices.InternalUnmarshal(
(ObjRef)ctorRetMsg.ReturnValue,
GetTransparentProxy(),
true /*fRefine*/);
if (retObj == null)
{
throw new RemotingException(
Environment.GetResourceString("Remoting_Activation_NullFromInternalUnmarshal"));
}
}
if (retObj != (MarshalByRefObject)GetTransparentProxy())
{
throw new RemotingException(
Environment.GetResourceString(
"Remoting_Activation_InconsistentState"));
}
}
}
