/* OpenRow
* open currently closed row indicated by row id
*/
LIB_EXPORT rc_t CC VCursorOpenRow ( const VCursor *cself )
{
rc_t rc;
VCursor *self = ( VCursor* ) cself;
if ( self == NULL )
rc = RC ( rcVDB, rcCursor, rcOpening, rcSelf, rcNull );
else if ( self -> state < vcReady )
rc = RC ( rcVDB, rcCursor, rcOpening, rcRow, rcIncomplete );
else if ( self -> state > vcReady )
rc = 0;
else
rc = VCursorOpenRowRead ( self );
return rc;
}
/* OpenRow
* open currently closed row indicated by row id
*/
LIB_EXPORT rc_t CC VCursorOpenRow ( const VCursor *cself )
{
rc_t rc;
VCursor *self = ( VCursor* ) cself;
if ( self == NULL )
rc = RC ( rcVDB, rcCursor, rcOpening, rcSelf, rcNull );
else if ( self -> state != vcReady )
{
switch ( self -> state )
{
case vcConstruct:
rc = RC ( rcVDB, rcCursor, rcOpening, rcRow, rcIncomplete );
break;
case vcFailed:
rc = RC ( rcVDB, rcCursor, rcOpening, rcCursor, rcInvalid );
break;
case vcRowOpen:
rc = 0;
break;
default:
rc = RC ( rcVDB, rcCursor, rcOpening, rcRow, rcBusy );
}
}
else if ( self -> read_only )
rc = VCursorOpenRowRead ( self );
else
{
/* validate that all columns have the same starting row_id */
int64_t row_id = self -> row_id;
VectorForEach ( & self -> row, false, WColumnOpenRow, & row_id );
assert ( row_id == self -> row_id );
self -> state = vcRowOpen;
rc = 0;
}
return rc;
}