Method fetchParameters

src/common/StatementMetadata.cpp:456–486

Fetch input or output parameter list.

// Fetch input or output parameter list.
void StatementMetadata::fetchParameters(UCHAR code, Parameters* parameters)
{
	while (!parameters->fetched)
	{
		unsigned startIndex = 1;

		for (ObjectsArray<Parameters::Item>::iterator i = parameters->items.begin();
			 i != parameters->items.end();
			 ++i)
		{
			if (!i->finished)
				break;

			++startIndex;
		}

		UCHAR items[5 + sizeof(DESCRIBE_VARS)] =
		{
			isc_info_sql_sqlda_start,
			2,
			UCHAR(startIndex & 0xFF),
			UCHAR((startIndex >> 8) & 0xFF),
			code
		};
		memcpy(items + 5, DESCRIBE_VARS, sizeof(DESCRIBE_VARS));

		UCHAR buffer[INFO_BUFFER_SIZE];
		memset(buffer, 0, sizeof(buffer));
		getAndParse(sizeof(items), items, sizeof(buffer), buffer);
	}
}


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