void Network::Spin()
{
if (active)
{
// ++inLwip;
ethernet_task(); // keep the Ethernet running
// --inLwip;
// See if we can send anything
RequestState* r = writingTransactions;
if (r != NULL)
{
bool finished = r->Send();
// Disable interrupts while we mess around with the lists in case we get a callback from a network ISR
irqflags_t flags = cpu_irq_save();
writingTransactions = r->next;
if (finished)
{
RequestState *rn = r->nextWrite;
r->nextWrite = NULL;
HttpState *hs = r->hs;
AppendTransaction(&freeTransactions, r);
if (rn != NULL)
{
if (hs != NULL)
{
hs->sendingRs = (rn->hs == hs) ? rn : NULL;
}
AppendTransaction(&writingTransactions, rn);
}
else if (hs != NULL)
{
hs->sendingRs = NULL;
}
}
else
{
AppendTransaction(&writingTransactions, r);
}
cpu_irq_restore(flags);
}
}
else if (establish_ethernet_link())
{
start_ethernet(reprap.GetPlatform()->IPAddress(), reprap.GetPlatform()->NetMask(), reprap.GetPlatform()->GateWay());
httpd_init();
active = true;
}
}
void Network::Spin()
{
// Basically we can't do anything if we can't interact with LWIP
if (!LockLWIP())
{
platform->ClassReport(longWait);
return;
}
if (state == NetworkActive)
{
// See if we can read any packets
if (readingData)
{
readingData = false;
do {
// read all queued packets from the RX buffer
} while (ethernet_read());
ethernet_set_rx_callback(&emac_read_packet);
}
// See if we can send anything
NetworkTransaction *r = writingTransactions;
if (r != NULL && r->Send())
{
// We're done, free up this transaction
ConnectionState *cs = r->cs;
NetworkTransaction *rn = r->nextWrite;
writingTransactions = r->next;
AppendTransaction(&freeTransactions, r);
// If there is more data to write on this connection, do it next time
if (cs != NULL)
{
cs->sendingTransaction = rn;
}
if (rn != NULL)
{
PrependTransaction(&writingTransactions, rn);
}
}
}
else if (state == NetworkInitializing && establish_ethernet_link())
{
start_ethernet(platform->IPAddress(), platform->NetMask(), platform->GateWay());
ethernet_set_rx_callback(&emac_read_packet);
httpd_init();
ftpd_init();
telnetd_init();
netbios_init();
state = NetworkActive;
}
UnlockLWIP();
platform->ClassReport(longWait);
}
