private static void ObtainProcessDispatcher()
{
byte[] data = SNINativeMethodWrapper.GetData();
if (data == null)
{
Bid.NotificationsTrace("<sc.SqlDependency.ObtainProcessDispatcher|DEP> nativeStorage null, obtaining dispatcher AppDomain and creating ProcessDispatcher.\n");
_AppDomain defaultAppDomain = SNINativeMethodWrapper.GetDefaultAppDomain();
if (defaultAppDomain != null)
{
ObjectHandle handle = CreateProcessDispatcher(defaultAppDomain);
if (handle != null)
{
SqlDependencyProcessDispatcher dispatcher = (SqlDependencyProcessDispatcher)handle.Unwrap();
if (dispatcher != null)
{
_processDispatcher = dispatcher.SingletonProcessDispatcher;
ObjRef objRef = GetObjRef(_processDispatcher);
BinaryFormatter formatter2 = new BinaryFormatter();
MemoryStream stream = new MemoryStream();
GetSerializedObject(objRef, formatter2, stream);
SNINativeMethodWrapper.SetData(stream.GetBuffer());
return;
}
Bid.NotificationsTrace("<sc.SqlDependency.ObtainProcessDispatcher|DEP|ERR> ERROR - ObjectHandle.Unwrap returned null!\n");
throw ADP.InternalError(ADP.InternalErrorCode.SqlDependencyObtainProcessDispatcherFailureObjectHandle);
}
Bid.NotificationsTrace("<sc.SqlDependency.ObtainProcessDispatcher|DEP|ERR> ERROR - AppDomain.CreateInstance returned null!\n");
throw ADP.InternalError(ADP.InternalErrorCode.SqlDependencyProcessDispatcherFailureCreateInstance);
}
Bid.NotificationsTrace("<sc.SqlDependency.ObtainProcessDispatcher|DEP|ERR> ERROR - unable to obtain default AppDomain!\n");
throw ADP.InternalError(ADP.InternalErrorCode.SqlDependencyProcessDispatcherFailureAppDomain);
}
Bid.NotificationsTrace("<sc.SqlDependency.ObtainProcessDispatcher|DEP> nativeStorage not null, obtaining existing dispatcher AppDomain and ProcessDispatcher.\n");
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream stream2 = new MemoryStream(data);
_processDispatcher = GetDeserializedObject(formatter, stream2);
Bid.NotificationsTrace("<sc.SqlDependency.ObtainProcessDispatcher|DEP> processDispatcher obtained, ID: %d\n", _processDispatcher.ObjectID);
}
