| 336 | } |
| 337 | |
| 338 | void SortedStream::mapData(thread_db* tdbb, Request* request, UCHAR* data) const |
| 339 | { |
| 340 | StreamType stream = INVALID_STREAM; |
| 341 | dsc from, to; |
| 342 | StreamList refetchStreams; |
| 343 | |
| 344 | for (const auto& item : m_map->items) |
| 345 | { |
| 346 | const auto flag = (*(data + item.flagOffset) == TRUE); |
| 347 | from = item.desc; |
| 348 | from.dsc_address = data + (IPTR) from.dsc_address; |
| 349 | |
| 350 | if (item.node && !nodeIs<FieldNode>(item.node)) |
| 351 | continue; |
| 352 | |
| 353 | // Some fields may have volatile keys, so that their value |
| 354 | // can be possibly changed before or during the sorting. |
| 355 | // We should ignore such an item, because there is a later field |
| 356 | // in the item list that contains the original value to send back |
| 357 | // (or the record will be refetched as a whole). |
| 358 | |
| 359 | if (hasVolatileKey(&item.desc) && isKey(&item.desc)) |
| 360 | continue; |
| 361 | |
| 362 | const auto rpb = &request->req_rpb[item.stream]; |
| 363 | const auto relation = rpb->rpb_relation; |
| 364 | const auto id = item.fieldId; |
| 365 | |
| 366 | if (id < 0) |
| 367 | { |
| 368 | switch (id) |
| 369 | { |
| 370 | case ID_TRANS: |
| 371 | rpb->rpb_transaction_nr = *reinterpret_cast<SINT64*>(from.dsc_address); |
| 372 | break; |
| 373 | case ID_DBKEY: |
| 374 | rpb->rpb_number.setValue(*reinterpret_cast<SINT64*>(from.dsc_address)); |
| 375 | break; |
| 376 | case ID_DBKEY_VALID: |
| 377 | rpb->rpb_number.setValid(*from.dsc_address != 0); |
| 378 | break; |
| 379 | default: |
| 380 | fb_assert(false); |
| 381 | } |
| 382 | |
| 383 | rpb->rpb_runtime_flags &= ~RPB_CLEAR_FLAGS; |
| 384 | |
| 385 | // If transaction ID is present, then fields from this stream are accessed. |
| 386 | // So we need to refetch the stream, either immediately or on demand. |
| 387 | const auto refetch = (id == ID_TRANS); |
| 388 | |
| 389 | if (refetch && relation && |
| 390 | !relation->rel_file && |
| 391 | !relation->rel_view_rse && |
| 392 | !relation->isVirtual()) |
| 393 | { |
| 394 | if (m_map->flags & FLAG_REFETCH) |
| 395 | { |
no test coverage detected