"Merlin Moncure" <[EMAIL PROTECTED]> writes:
> The problem is the functions PQhookData(conn, hookname) and
> PQresultHookData(result, hookName).  We need these to work in
> functions that are not callbacks.  If we eliminate hookname
> completely, there is no way for libpq to know which private state we
> are asking for.

Well, depending on a hook name for this is broken-by-design anyway,
because there is no way for two independently written libraries to
be sure they don't choose conflicting hook names.  So the need for
a hook name has to go away.

It might work to use the address of the hook callback function as
a key for retrieving the associated void * pointer.  You'd need to
not register the same callback function more than once per object,
but from what I gather here you don't need to.

                        regards, tom lane

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