ScripMasterDataRequest::ScripMasterDataRequest(const char * buf)
{
int offset = 0;
UNSIGNED_INTEGER tmpInt1 = 0, tmpInt2 = 0;
UNSIGNED_CHARACTER tmpChar = 0;
UNSIGNED_LONG tmpLong1 = 0, tmpLong2 = 0;
UNSIGNED_SHORT tmpShort1 = 0, tmpShort2 = 0;
DESERIALIZE_8(tmpChar, setScripMasterDataRequestType(tmpChar), buf, offset);
DESERIALIZE_32(tmpInt1, tmpInt2, setClientId(tmpInt2), buf, offset);
DESERIALIZE_64(tmpLong1, tmpLong2, setRecordNumber(tmpLong2), buf, offset);
DESERIALIZE_64(tmpLong1, tmpLong2, setSecurityId(tmpLong2), buf, offset);
DESERIALIZE_64(tmpLong1, tmpLong2, setSymbolId(tmpLong2), buf, offset);
DESERIALIZE_16(tmpShort1, tmpShort2, setExchangeId(tmpShort2), buf, offset);
setSymbol(strdup(buf + offset));
offset += SYMBOL_SIZE;
setSeries(strdup(buf + offset));
offset += SERIES_SIZE;
setMarketName(strdup(buf + offset));
offset += MARKET_NAME_SIZE;
DESERIALIZE_8(tmpChar, setOptionType(tmpChar), buf, offset);
DESERIALIZE_8(tmpChar, setOptionMode(tmpChar), buf, offset);
DESERIALIZE_8(tmpChar, setSecurityType(tmpChar), buf, offset);
DESERIALIZE_64(tmpLong1, tmpLong2, setStrikePrice(tmpLong2), buf, offset);
DESERIALIZE_32(tmpInt1, tmpInt2, setExpiryYearMon(tmpInt2), buf, offset);
DESERIALIZE_32(tmpInt1, tmpInt2, setExpiryDate(tmpInt2), buf, offset);
DESERIALIZE_32(tmpInt1, tmpInt2, setNumberOfRecords(tmpInt2), buf, offset);
setSymbolAlias(strdup(buf + offset));
offset += SYMBOL_ALIAS_SIZE;
}
size_type DataPage::deleteSingleRecord(const DataPageCursor& cursor)
{
const uint16_t numberOfRecords = getNumberOfRecords();
RAISE_INTERNAL_ERROR_IF_ARG(numberOfRecords == 0);
RAISE_INTERNAL_ERROR_IF_ARG(! cursor.isValid());
const size_type recordInlineSize = (cursor.isInlineValue())?
cursor.recordOverheadSize() + static_cast<size_type>(cursor.inlineValue().size()) // inline value - overhead + value size
: cursor.recordOverheadSize() + (2 * sizeof(uint32_t)); // big value - overhead + data size (4) + page pointer (4)
if (cursor.index() < numberOfRecords - 1) {
// Generic case: existing records and record pointers must be moved.
const size_type endOfFreeArea = getEndOfFreeArea();
const size_type movedBytes = getRecordOffsetAt(cursor.index()) - endOfFreeArea;
const size_type newEndOfFreeArea = endOfFreeArea + recordInlineSize;
// Move rest of the data to fill the hole.
moveBytes(newEndOfFreeArea, endOfFreeArea, movedBytes);
// Adjust record pointers.
for (uint16_t i = cursor.index() + 1; i < numberOfRecords; ++i) {
const size_type newOffset = getRecordOffsetAt(i) + recordInlineSize;
setRecordOffsetAt(i - 1, newOffset);
}
setEndOfFreeArea(newEndOfFreeArea);
}
else {
// Special case: adjust the end of free area when deleting the last item.
const uint32_t newEndOfFreeArea = (numberOfRecords == 1)? size() : getRecordOffsetAt(cursor.index() - 1);
setEndOfFreeArea(newEndOfFreeArea);
}
setNumberOfRecords(numberOfRecords - 1);
return recordInlineSize;
}
void DataPage::addRecordOffset(size_type keyOffset)
{
const uint16_t numberOfRecords = getNumberOfRecords();
setRecordOffsetAt(numberOfRecords, keyOffset);
setNumberOfRecords(numberOfRecords + 1);
}
