Block*
netifbread(Netif *nif, Chan *c, long n, vlong offset)
{
Netfile *f;
Block *bp;
if((c->qid.type & QTDIR) || NETTYPE(c->qid.path) != Ndataqid)
return devbread(c, n, offset);
f = nif->f[NETID(c->qid.path)];
if(f->fat){
/*
* Frame at a time (fat) allows us to provide
* non-blocking performance with blocking semantics
* for consumers that know ahead of time data is
* contained within a single frame. Once empty, we
* get in line with other blocking reads and wait our
* turn.
*/
for(;;){
if(bp = qget(f->iq))
return bp;
if(waserror())
return nil;
qsleep(f->iq);
poperror();
}
}
return qbread(f->iq, n);
}
//======================================================================
// Main code
//======================================================================
int
recvXModem(SerialPort& port)
{
receive(port);
qsleep(2);
return exitCode;
}
