/// <summary>显式关闭和销毁当前的WCF通道</summary>
public static void Close()
{
lock (_ans)
{
IClientChannel channel = _backupsClass as IClientChannel;
try
{
if (null == channel)
{
return;
}
ClearAllEvents(channel);
if (channel.State == CommunicationState.Opened ||
channel.State == CommunicationState.Opening ||
channel.State == CommunicationState.Created)
{
channel.Close();
}
}
catch { }
finally { _backupsClass = null; _channelState = false; }
}
}
/// <summary>新建一个WCF的通道,返回通道是否有效</summary>
private static bool CreatNewChannel()
{
lock (_ans)
{
try
{
WcfClientHelper.SetWCFParas(_ipAdress, _portNum, _binding);
_backupsClass = WcfClientHelper.CreateService <IRemoteDispatch>();
IClientChannel channel = _backupsClass as IClientChannel;
if (channel == null)
{
return(false);
}
channel.Faulted += ChannelFaulted;
if (channel.State != CommunicationState.Opened)
{
channel.Open();
}
if (!_channelState)
{
_channelState = true;
}
return(true);
}
catch { if (_channelState)
{
_channelState = false;
}
return(false); }
}
}
// Implement Invoke
public override IMessage Invoke(IMessage reqMsg)
{
AssertValid();
IMessage retMsg = null;
// CHECK FOR CTOR
if (reqMsg is IConstructionCallMessage)
{
DBG.Info(DBG.SC, "RSCP: Short circuiting constructor call.");
if (((IConstructionCallMessage)reqMsg).ArgCount > 0)
{
throw new ServicedComponentException(Resource.FormatString("ServicedComponentException_ConstructorArguments"));
}
// WE don't need dispatch the constructor message, the default .ctor is called
// by CoCI
// Create the return message
MarshalByRefObject retObj = (MarshalByRefObject)GetTransparentProxy();
return(EnterpriseServicesHelper.CreateConstructionReturnMessage((IConstructionCallMessage)reqMsg, retObj));
}
// NON CTOR MESSAGE
MethodBase mb = ((IMethodMessage)reqMsg).MethodBase;
MemberInfo m = (MemberInfo)mb;
DBG.Assert(m != null, "member info should not be null");
if (mb == _getTypeMethod)
{
DBG.Info(DBG.SC, "RSCP: Hijacking call to GetType");
IMethodCallMessage mcm = (IMethodCallMessage)reqMsg;
return(new ReturnMessage(ProxiedType, null, 0, mcm.LogicalCallContext, mcm));
}
if (mb == _getHashCodeMethod)
{
int hashCode = this.GetHashCode();
DBG.Info(DBG.SC, "RSCP: Hijacking call to GetHashCode, returning " + hashCode);
IMethodCallMessage mcm = (IMethodCallMessage)reqMsg;
return(new ReturnMessage(hashCode, null, 0, mcm.LogicalCallContext, mcm));
}
DBG.Info(DBG.SC, "RSCP: Delivering call to " + mb.Name);
// convert to class member info
MemberInfo clsMemInfo = ReflectionCache.ConvertToClassMI(ProxiedType, m);
DBG.Assert(!clsMemInfo.ReflectedType.IsInterface,
"Failed to convert interface member info to class member info");
// dispatch the call
#if _DEBUG
if (clsMemInfo != m)
{
DBG.Info(DBG.SC, "RSCP: converted interface to class call: " + clsMemInfo.Name);
}
#endif
try
{
int iMethodInfo;
// check for rolebased security
if (_fUseIntfDispatch ||
(((iMethodInfo = ServicedComponentInfo.MICachedLookup(clsMemInfo)) & ServicedComponentInfo.MI_HASSPECIALATTRIBUTES) != 0) ||
((iMethodInfo & ServicedComponentInfo.MI_EXECUTEMESSAGEVALID) != 0)
)
{
// role based security implies we dispatch through an interface
MemberInfo intfMemInfo = ReflectionCache.ConvertToInterfaceMI(m);
if (intfMemInfo == null)
{
throw new ServicedComponentException(Resource.FormatString("ServicedComponentException_SecurityMapping"));
}
//retMsg = EnterpriseServicesHelper.DispatchRemoteCall(reqMsg, intfMemInfo, _server);
MethodCallMessageWrapperEx msgex = new MethodCallMessageWrapperEx((IMethodCallMessage)reqMsg, (MethodBase)intfMemInfo);
retMsg = RemotingServices.ExecuteMessage((MarshalByRefObject)_server, (IMethodCallMessage)msgex);
}
else
{
// check for AutoDone
bool fAutoDone = (iMethodInfo & ServicedComponentInfo.MI_AUTODONE) != 0;
String s = ComponentServices.ConvertToString(reqMsg);
IRemoteDispatch iremDisp = (IRemoteDispatch)_server;
String sret;
if (fAutoDone)
{
sret = iremDisp.RemoteDispatchAutoDone(s);
}
else
{
sret = iremDisp.RemoteDispatchNotAutoDone(s);
}
retMsg = ComponentServices.ConvertToReturnMessage(sret, reqMsg);
}
}
catch (COMException e)
{
if (!(e.ErrorCode == Util.CONTEXT_E_ABORTED || e.ErrorCode == Util.CONTEXT_E_ABORTING))
{
throw;
}
if (IsDisposeRequest(reqMsg))
{
IMethodCallMessage mcm = reqMsg as IMethodCallMessage;
retMsg = new ReturnMessage(null, null, 0, mcm.LogicalCallContext, mcm);
}
else
{
throw;
}
}
// if disposing, we need to release this side of the world.
if (IsDisposeRequest(reqMsg))
{
Dispose(true);
}
return(retMsg);
}
public override IMessage Invoke(IMessage reqMsg)
{
this.AssertValid();
IMessage message = null;
if (reqMsg is IConstructionCallMessage)
{
if (((IConstructionCallMessage)reqMsg).ArgCount > 0)
{
throw new ServicedComponentException(Resource.FormatString("ServicedComponentException_ConstructorArguments"));
}
MarshalByRefObject transparentProxy = (MarshalByRefObject)this.GetTransparentProxy();
return(EnterpriseServicesHelper.CreateConstructionReturnMessage((IConstructionCallMessage)reqMsg, transparentProxy));
}
MethodBase methodBase = ((IMethodMessage)reqMsg).MethodBase;
MemberInfo mi = methodBase;
if (methodBase == _getTypeMethod)
{
IMethodCallMessage mcm = (IMethodCallMessage)reqMsg;
return(new ReturnMessage(this.ProxiedType, null, 0, mcm.LogicalCallContext, mcm));
}
if (methodBase == _getHashCodeMethod)
{
int hashCode = this.GetHashCode();
IMethodCallMessage message3 = (IMethodCallMessage)reqMsg;
return(new ReturnMessage(hashCode, null, 0, message3.LogicalCallContext, message3));
}
if (methodBase == _isInstanceOfTypeMethod)
{
IMethodCallMessage message4 = (IMethodCallMessage)reqMsg;
Type inArg = (Type)message4.GetInArg(0);
return(new ReturnMessage(inArg.IsInstanceOfType(this.ProxiedType), null, 0, message4.LogicalCallContext, message4));
}
MemberInfo m = ReflectionCache.ConvertToClassMI(this.ProxiedType, mi);
try
{
int num2;
if ((this._fUseIntfDispatch || (((num2 = ServicedComponentInfo.MICachedLookup(m)) & 4) != 0)) || ((num2 & 8) != 0))
{
MemberInfo info3 = ReflectionCache.ConvertToInterfaceMI(mi);
if (info3 == null)
{
throw new ServicedComponentException(Resource.FormatString("ServicedComponentException_SecurityMapping"));
}
MethodCallMessageWrapperEx ex = new MethodCallMessageWrapperEx((IMethodCallMessage)reqMsg, (MethodBase)info3);
message = RemotingServices.ExecuteMessage((MarshalByRefObject)this._server, ex);
}
else
{
string str2;
bool flag = (num2 & 2) != 0;
string s = ComponentServices.ConvertToString(reqMsg);
IRemoteDispatch dispatch = (IRemoteDispatch)this._server;
if (flag)
{
str2 = dispatch.RemoteDispatchAutoDone(s);
}
else
{
str2 = dispatch.RemoteDispatchNotAutoDone(s);
}
message = ComponentServices.ConvertToReturnMessage(str2, reqMsg);
}
}
catch (COMException exception)
{
if ((exception.ErrorCode != -2147164158) && (exception.ErrorCode != -2147164157))
{
throw;
}
if (!this.IsDisposeRequest(reqMsg))
{
throw;
}
IMethodCallMessage message5 = reqMsg as IMethodCallMessage;
message = new ReturnMessage(null, null, 0, message5.LogicalCallContext, message5);
}
if (this.IsDisposeRequest(reqMsg))
{
this.Dispose(true);
}
return(message);
}
