Tom Lane wrote:
"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.
Or else have the library return a unique handle when registering hooks,
rather than supplying a hook name.
cheers
andrew
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