Function xdr_sql_blr

src/remote/protocol.cpp:1899–2004

static bool_t xdr_sql_blr(RemoteXdr* xdrs,
						  SLONG statement_id,
						  CSTRING* blr,
						  bool direction, SQL_STMT_TYPE stmt_type)
{
/**************************************
 *
 *	x d r _ s q l _ b l r
 *
 **************************************
 *
 * Functional description
 *	Map an sql blr string.  This work is necessary because
 *	we will use the blr to read data in the current packet.
 *
 **************************************/
	if (!xdr_cstring(xdrs, blr))
		return FALSE;

	// We care about all receives and sends from fetch

	if (xdrs->x_op == XDR_FREE)
		return TRUE;

	rem_port* port = xdrs->x_public;

	Rsr* statement;

	if (statement_id >= 0)
	{
		if (static_cast<ULONG>(statement_id) >= port->port_objects.getCount())
			return FALSE;

		try
		{
			statement = port->port_objects[statement_id];
		}
		catch (const status_exception&)
		{
			return FALSE;
		}
	}
	else
	{
		if (!(statement = port->port_statement))
			statement = port->port_statement = FB_NEW Rsr;
	}

	if ((xdrs->x_op == XDR_ENCODE) && !direction)
	{
		if (statement->rsr_bind_format)
			statement->rsr_format = statement->rsr_bind_format;
		return TRUE;
	}

	// Parse the blr describing the message.

	rem_fmt** fmt_ptr = direction ? &statement->rsr_select_format : &statement->rsr_bind_format;