| private PropagateOutParameters ( Object OutArgs, Object retVal ) : void | ||
| OutArgs | Object | |
| retVal | Object | |
| return | void | |
[System.Security.SecurityCritical] // auto-generated
internal static IMessage EndInvokeHelper(Message reqMsg, bool bProxyCase)
{
AsyncResult ar = reqMsg.GetAsyncResult() as AsyncResult;
IMessage retMsg = null; // used for proxy case only!
if (ar == null)
{
throw new RemotingException(
Environment.GetResourceString(
"Remoting_Message_BadAsyncResult"));
}
if (ar.AsyncDelegate != reqMsg.GetThisPtr())
{
throw new InvalidOperationException(Environment.GetResourceString(
"InvalidOperation_MismatchedAsyncResult"));
}
if (!ar.IsCompleted)
{
// Note: using ThreadPoolAware to detect if this is a
// ThreadAffinity or Synchronization context.
ar.AsyncWaitHandle.WaitOne(
Int32.MaxValue,
Thread.CurrentContext.IsThreadPoolAware);
}
lock (ar)
{
if (ar.EndInvokeCalled)
throw new InvalidOperationException(
Environment.GetResourceString(
"InvalidOperation_EndInvokeCalledMultiple"));
ar.EndInvokeCalled = true;
IMethodReturnMessage mrm =
(IMethodReturnMessage) ar.GetReplyMessage();
Contract.Assert(
mrm != null,
"Reply sink should ensure we have a reply message before signalling");
// For the proxy case this is handled by RealProxy
if (!bProxyCase)
{
Exception e = mrm.Exception;
if (e != null)
{
// throw e;
throw e.PrepForRemoting();
}
else
{
reqMsg.PropagateOutParameters(
mrm.Args,
mrm.ReturnValue);
}
}
else
{
retMsg = mrm;
}
// Merge the call context back into the thread that
// called EndInvoke
CallContext.GetLogicalCallContext().Merge(
mrm.LogicalCallContext);
}
// Will be non-null only for proxy case!
return retMsg;
} // EndInvokeHelper
private static void Invoke(object NotUsed, ref MessageData msgData)
{
Message reqMcmMsg = new Message();
reqMcmMsg.InitFields(msgData);
Delegate thisPtr = reqMcmMsg.GetThisPtr() as Delegate;
if (thisPtr == null)
{
throw new RemotingException(Environment.GetResourceString("Remoting_Default"));
}
RemotingProxy realProxy = (RemotingProxy) RemotingServices.GetRealProxy(thisPtr.Target);
if (realProxy != null)
{
realProxy.InternalInvoke(reqMcmMsg, true, reqMcmMsg.GetCallType());
}
else
{
int callType = reqMcmMsg.GetCallType();
switch (callType)
{
case 1:
case 9:
{
reqMcmMsg.Properties[Message.CallContextKey] = CallContext.GetLogicalCallContext().Clone();
AsyncResult retVal = new AsyncResult(reqMcmMsg);
AgileAsyncWorkerItem state = new AgileAsyncWorkerItem(reqMcmMsg, ((callType & 8) != 0) ? null : retVal, thisPtr.Target);
ThreadPool.QueueUserWorkItem(new WaitCallback(AgileAsyncWorkerItem.ThreadPoolCallBack), state);
if ((callType & 8) != 0)
{
retVal.SyncProcessMessage(null);
}
reqMcmMsg.PropagateOutParameters(null, retVal);
break;
}
case 2:
RealProxy.EndInvokeHelper(reqMcmMsg, false);
return;
case 10:
break;
default:
return;
}
}
}
// Invoke for case where call is in the same context as the server object
// (This special static method is used for AsyncDelegate-s ... this is called
// directly from the EE)
private static void Invoke(Object NotUsed, ref MessageData msgData)
{
Message m = new Message();
m.InitFields(msgData);
Object thisPtr = m.GetThisPtr();
Delegate d;
if ((d = thisPtr as Delegate) != null)
{
RemotingProxy rp = (RemotingProxy)
RemotingServices.GetRealProxy(d.Target);
if (rp != null)
{
rp.InternalInvoke(m, true, m.GetCallType());
}
else
{
int callType = m.GetCallType();
AsyncResult ar;
switch (callType)
{
case Message.BeginAsync:
case Message.BeginAsync | Message.OneWay:
// pick up call context from the thread
m.Properties[Message.CallContextKey] =
CallContext.GetLogicalCallContext().Clone();
ar = new AsyncResult(m);
AgileAsyncWorkerItem workItem =
new AgileAsyncWorkerItem(
m,
((callType & Message.OneWay) != 0) ?
null : ar, d.Target);
ThreadPool.QueueUserWorkItem(
new WaitCallback(
AgileAsyncWorkerItem.ThreadPoolCallBack),
workItem);
if ((callType & Message.OneWay) != 0)
{
ar.SyncProcessMessage(null);
}
m.PropagateOutParameters(null, ar);
break;
case (Message.EndAsync | Message.OneWay):
return;
case Message.EndAsync:
// This will also merge back the call context
// onto the thread that called EndAsync
RealProxy.EndInvokeHelper(m, false);
break;
default:
BCLDebug.Assert(
false,
"Should never be here. Sync delegate code for agile object ended up in remoting");
break;
}
}
}
else
{
// Static invoke called with incorrect this pointer ...
throw new RemotingException(
Environment.GetResourceString(
"Remoting_Default"));
}
}
internal static IMessage EndInvokeHelper(Message reqMsg, bool bProxyCase)
{
AsyncResult asyncResult = reqMsg.GetAsyncResult() as AsyncResult;
IMessage message = null;
if (asyncResult == null)
{
throw new RemotingException(Environment.GetResourceString("Remoting_Message_BadAsyncResult"));
}
if (asyncResult.AsyncDelegate != reqMsg.GetThisPtr())
{
throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_MismatchedAsyncResult"));
}
if (!asyncResult.IsCompleted)
{
asyncResult.AsyncWaitHandle.WaitOne(0x7fffffff, Thread.CurrentContext.IsThreadPoolAware);
}
lock (asyncResult)
{
if (asyncResult.EndInvokeCalled)
{
throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EndInvokeCalledMultiple"));
}
asyncResult.EndInvokeCalled = true;
IMethodReturnMessage replyMessage = (IMethodReturnMessage) asyncResult.GetReplyMessage();
if (!bProxyCase)
{
Exception exception = replyMessage.Exception;
if (exception != null)
{
throw exception.PrepForRemoting();
}
reqMsg.PropagateOutParameters(replyMessage.Args, replyMessage.ReturnValue);
}
else
{
message = replyMessage;
}
CallContext.GetLogicalCallContext().Merge(replyMessage.LogicalCallContext);
}
return message;
}
