🚀 go-pugleaf

"Emmanuel" <emmanuel@erphk.com> wrote in message
news:474ecbea@newsgroups.borland.com...

> Whenever using a TClientSocket and TClientDataSet
> (Socket Server) at the same time
> eg:
>
> ClientSocket->Open();
> ......
> ClientDataSet->Open();
>
> error must be occured
>
> class EvariantInvalidArgError with message 'Invalid argument'

There is no way to track that down without seeing a stack trace leading up
to the exception being raised.

> class ESocketConnectionError with message 'Error reading form socket'

That exception is only raised when the socket API recv() function does not
return as many bytes as were asked for during a reading operation.  Which,
frankly, is really stupid on TClientDataSet's part, because that is not the
proper way to handle socket data.  recv() is never guaranteed to return all
of the requested bytes in one call.  If the return value is > 0 and more
bytes are expected, recv() is supposed to be called again.  But
TClientDataSet does not do that.

> if ClientSocket don't open, this is no error
>
> How can I solve it???????

Don't open them at the same time, obviously.  Without knowing more about why
the EVariantInvalidArgError is being raised, all I can guess is that both
components are trying to use the same port at the same one, and one of them
is going to fail as a result.


Gambit