Method scatterData

src/yvalve/why.cpp:571–619

}

void SQLDAMetadata::scatterData(DataBuffer& from)
{
	fb_assert(sqlda);
	///fb_assert(offsets); // Not reliable, but still check that input buffer can come from this metadata

	if (speedHackEnabled)
		return; // Data is already in user's buffer

	fb_assert(length == from.getCount());

	for (unsigned i = 0; i < count; i++)
	{
		const XSQLVAR& var = sqlda->sqlvar[i];

		if ((var.sqltype & ~1) != SQL_NULL)
		{
			unsigned len = var.sqllen;

			// Make sure user has specified a data location.
			if (!var.sqldata)
			{
				(Arg::Gds(isc_dsql_sqlda_value_err) <<
					Arg::Gds(isc_dsql_no_sqldata) <<
					Arg::Gds(isc_dsql_sqlvar_index) << Arg::Num(i)
				).raise();
			}

			if ((var.sqltype & ~1) == SQL_VARYING)
				len += sizeof(SSHORT);

			memcpy(var.sqldata, from.begin() + offsets[i].offset, len);
		}

		if (var.sqltype & 1)
		{
			// Make sure user has specified a location for null indicator.
			if (!var.sqlind)
			{
				(Arg::Gds(isc_dsql_sqlda_value_err) <<
					Arg::Gds(isc_dsql_no_sqlind) <<
					Arg::Gds(isc_dsql_sqlvar_index) << Arg::Num(i)
				).raise();
			}

			*var.sqlind = *reinterpret_cast<ISC_SHORT*>(from.begin() + offsets[i].indOffset);
		}
	}

}

UCHAR* SQLDAMetadataLauncher::getBuffer()
{