// Open the LOB to speed further accesses.
func (lv *ExternalLobVar) Open() error {
if err := lv.Verify(); err != nil {
return err
}
// Py_BEGIN_ALLOW_THREADS
return lv.lobVar.environment.CheckStatus(
C.OCILobOpen(lv.lobVar.connection.handle,
lv.lobVar.environment.errorHandle,
(*C.OCILobLocator)(unsafe.Pointer(&lv.lobVar.dataBytes[lv.pos*lv.lobVar.size])),
C.OCI_LOB_READWRITE),
"LobOpen")
// Py_END_ALLOW_THREADS
}
// Open the LOB to speed further accesses.
func (lv *ExternalLobVar) Open() error {
if err := lv.Verify(); err != nil {
return err
}
// Py_BEGIN_ALLOW_THREADS
if CTrace {
ctrace("OCILobOpen(conn=%p, lob=%x, OCI_LOB_READWRITE)",
lv.lobVar.connection.handle, lv.getHandleBytes())
}
return lv.lobVar.environment.CheckStatus(
C.OCILobOpen(lv.lobVar.connection.handle,
lv.lobVar.environment.errorHandle,
lv.getHandle(), C.OCI_LOB_READWRITE),
"LobOpen")
// Py_END_ALLOW_THREADS
}
func lobOpen(ses *Ses, lob *C.OCILobLocator, mode C.ub1) (length C.oraub8, err error) {
//Log.Infof("OCILobOpen %p\n%s", lob, getStack(1))
r := C.OCILobOpen(
ses.ocisvcctx, //OCISvcCtx *svchp,
ses.srv.env.ocierr, //OCIError *errhp,
lob, //OCILobLocator *locp,
mode) //ub1 mode );
//Log.Infof("OCILobOpen %p returned %d", lob, r)
if r != C.OCI_SUCCESS {
lobClose(ses, lob)
return 0, ses.srv.env.ociError()
}
// get the length of the lob
r = C.OCILobGetLength2(
ses.ocisvcctx, //OCISvcCtx *svchp,
ses.srv.env.ocierr, //OCIError *errhp,
lob, //OCILobLocator *locp,
&length) //oraub8 *lenp)
if r == C.OCI_ERROR {
lobClose(ses, lob)
return length, ses.srv.env.ociError()
}
return length, nil
}