size for OCIHandleAlloc

Hi, Oracle World.

I am using Oracle OCI. According the documnets, all the OCI data structure are opaque to users. When calling OCI funcs, just leave the size field as 0 and func ptr field as NULL.

I look at the smaples under $ORACLE_HOME/ora81/oci/samples and find that some programs call OCIHandleAlloc by:

(void) OCIHandleAlloc(

        (dvoid *) envhp,
        (dvoid **) &errhp,
        OCI_HTYPE_ERROR,
        (size_t) 0,
        (dvoid **) 0);

And some call (cdemodsc.c) it by:

(void) OCIHandleAlloc(

(dvoid *) envhp,
(dvoid **) &errhp,
(ub4) OCI_HTYPE_ERROR,

       52,


       (dvoid **) &tmp); /* tmp is just a dvoid ptr */

I just wonder why they just hardcoded the size here? Is the size the same in all platforms? I guess this is because the old version hardcoded the size and they didn't check. Is there a optimized size?

Does someone hack into the OCI DLL and take a look at their data structure?

Thanks,

--ye

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Before you buy. Received on Fri Jul 28 2000 - 00:00:00 CEST