// FileExists returns a boolean indicating if the BFIILE lob exists.
func (lv *ExternalLobVar) FileExists() (bool, error) {
var (
err error
flag C.boolean
)
if err = lv.Verify(); err != nil {
return false, errgo.Mask(
// Py_BEGIN_ALLOW_THREADS
err)
}
if CTrace {
ctrace("OCILobFileExists(conn=%p, lob=%x, &flag=%p",
lv.lobVar.connection.handle, lv.getHandleBytes(), &flag)
}
if err = lv.lobVar.environment.CheckStatus(
C.OCILobFileExists(lv.lobVar.connection.handle,
lv.lobVar.environment.errorHandle,
lv.getHandle(), &flag),
"LobFileExists",
); err != nil {
return false, errgo.Mask(
// Py_END_ALLOW_THREADS
err)
}
return flag == C.TRUE, nil
}
// FileExists returns a boolean indicating if the BFIILE lob exists.
func (lv *ExternalLobVar) FileExists() (bool, error) {
var (
err error
flag C.boolean
)
if err = lv.Verify(); err != nil {
return false, err
}
// Py_BEGIN_ALLOW_THREADS
if err = lv.lobVar.environment.CheckStatus(
C.OCILobFileExists(lv.lobVar.connection.handle,
lv.lobVar.environment.errorHandle,
(*C.OCILobLocator)(unsafe.Pointer(&lv.lobVar.dataBytes[lv.pos*lv.lobVar.size])),
&flag), "LobFileExists"); err != nil {
return false, err
}
// Py_END_ALLOW_THREADS
return flag == C.TRUE, nil
}