internal void Unadvise()
{
if (isAdvised)
{
connectionPoint.Unadvise(cookie);
}
isAdvised = false;
}
private void DisposeAll()
{
if (_connectionPoint == null)
{
return;
}
if (_adviseCookie == -1)
{
return;
}
try
{
_connectionPoint.Unadvise(_adviseCookie);
// _connectionPoint has entered the CLR in the constructor
// for this object and hence its ref counter has been increased
// by us. We have not exposed it to other components and
// hence it is safe to call RCO on it w/o worrying about
// killing the RCW for other objects that link to it.
Marshal.ReleaseComObject(_connectionPoint);
}
catch (Exception ex)
{
// if something has gone wrong, and the object is no longer attached to the CLR,
// the Unadvise is going to throw. In this case, since we're going away anyway,
// we'll ignore the failure and quietly go on our merry way.
COMException exCOM = ex as COMException;
if (exCOM != null && exCOM.ErrorCode == ComHresults.CONNECT_E_NOCONNECTION)
{
Debug.Assert(false, "IConnectionPoint::Unadvise returned CONNECT_E_NOCONNECTION.");
throw;
}
}
finally
{
_connectionPoint = null;
_adviseCookie = -1;
_sourceIid = Guid.Empty;
}
}
public void Disconnect()
{
try
{
if (_connectionPoint == null)
{
return;
}
if (_cookie.HasValue)
{
// TODO: Fix: hangs when disposing.
_connectionPoint.Unadvise(_cookie.Value);
_cookie = null;
}
Marshal.ReleaseComObject(_connectionPoint);
_connectionPoint = null;
}
catch (Exception ex)
{
Log.Error("Failed to unsubscribe callback.", ex);
}
}