// internalSize returns the size in bytes (!) of the LOB variable for internal comsumption.
func (lv *ExternalLobVar) internalSize() (length C.ub4, err error) {
if CTrace {
ctrace("%s.internalSize", lv)
}
// Py_BEGIN_ALLOW_THREADS
if CTrace {
ctrace("OCILobGetLength(conn=%p, pos=%d lob=%x, &length=%p)",
lv.lobVar.connection.handle, lv.idx*lv.lobVar.typ.size,
lv.getHandleBytes(), &length)
//buf := make([]byte, 8192)
//ctrace("Stack: %s", buf[:runtime.Stack(buf, false)])
//ctrace("data[%d]=%p", lv.idx, lob)
}
if err = lv.lobVar.environment.CheckStatus(
C.OCILobGetLength(lv.lobVar.connection.handle,
lv.lobVar.environment.errorHandle,
lv.getHandle(), &length),
"LobGetLength"); err != nil {
return
}
// Py_END_ALLOW_THREADS
if lv.lobVar.typ == ClobVarType {
length *= C.ub4(lv.lobVar.environment.MaxBytesPerCharacter)
} else if lv.lobVar.typ == NClobVarType {
length *= 2
}
return
}
func (v *Variable) getLobInternalSize(pos uint) (length C.ub4, err error) {
switch v.typ {
case ClobVarType, NClobVarType, BlobVarType, BFileVarType:
default:
return 0, errgo.Newf("getLobInternalSize is usable only for LOB vars! not for %T", v.typ)
}
lob, _ := v.getLobLoc(pos)
// Py_BEGIN_ALLOW_THREADS
if CTrace {
ctrace("OCILobGetLength(conn=%p, pos=%d lob=%x, &length=%p)",
v.connection.handle, pos*v.typ.size, lob, &length)
//buf := make([]byte, 8192)
//ctrace("Stack: %s", buf[:runtime.Stack(buf, false)])
//ctrace("data[%d]=%p", pos, lob)
}
if err = v.environment.CheckStatus(
C.OCILobGetLength(v.connection.handle,
v.environment.errorHandle, lob,
&length),
"LobGetLength"); err != nil {
return
}
// Py_END_ALLOW_THREADS
return
}
// internalSize returns the size of the LOB variable for internal comsumption.
func (lv *ExternalLobVar) internalSize() (length C.ub4, err error) {
// Py_BEGIN_ALLOW_THREADS
if err = lv.lobVar.environment.CheckStatus(
C.OCILobGetLength(lv.lobVar.connection.handle,
lv.lobVar.environment.errorHandle,
(*C.OCILobLocator)(unsafe.Pointer(&lv.lobVar.dataBytes[lv.pos*lv.lobVar.size])),
&length),
"LobGetLength"); err != nil {
return
}
// Py_END_ALLOW_THREADS
return
}