Function send_packet

src/remote/client/interface.cpp:9775–9832

static void send_packet(rem_port* port, PACKET* packet)
{
/**************************************
 *
 *	s e n d _ p a c k e t
 *
 **************************************
 *
 * Functional description
 *	Send a packet and check for a network error
 *	on the send.
 *	Make up a status vector for any error.
 *	Note: SOME of the network lower level protocols
 *	will set up a status vector when errors
 *	occur, but other ones won't.
 *	So this routine sets up an error result
 *	for the vector and resets it to true
 *	if the packet send occurred.
 *
 *	See also cousin routine: receive_packet
 *
 **************************************/

	RefMutexGuard guard(*port->port_write_sync, FB_FUNCTION);

	if (port->port_flags & PORT_detached || port->port_state == rem_port::BROKEN)
	{
		(Arg::Gds(isc_net_write_err)
#ifdef DEV_BUILD
			<< Arg::Gds(isc_random) << "port detached"
#endif
		).raise();
	}

	// Send packets that were deferred

	if (port->port_deferred_packets)
	{
		for (rem_que_packet* p = port->port_deferred_packets->begin();
			 p < port->port_deferred_packets->end();
			 ++p)
		{
			if (!p->sent)
			{
				if (!port->send_partial(&p->packet))
					(Arg::Gds(isc_net_write_err) <<
					 Arg::Gds(isc_random) << "send_packet/send_partial").raise();

				p->sent = true;
			}
		}
	}

	if (!port->send(packet))
	{
		(Arg::Gds(isc_net_write_err)<< Arg::Gds(isc_random) << "send_packet/send").raise();
	}
}