void
delay(int usecs)
{
int msecs, start;
msecs = usecs / 1000;
start = OF_milliseconds();
while (OF_milliseconds() - start < msecs);
}
time_t
time(time_t *tloc)
{
int secs;
secs = OF_milliseconds() / 1000;
if (tloc)
*tloc = secs;
return secs;
}
/*
* Receive a packet, including the ether header.
* Return the total length received (or -1 on error).
*/
ssize_t
netif_get(struct iodesc *desc, void *pkt, size_t maxlen, time_t timo)
{
struct of_dev *op;
int tick0, tmo_ms;
int len;
op = desc->io_netif->nif_devdata;
#ifdef NETIF_DEBUG
printf("netif_get: pkt=0x%x, maxlen=%d, tmo=%d\n",
pkt, maxlen, timo);
#endif
tmo_ms = timo * 1000;
tick0 = OF_milliseconds();
do {
len = OF_read(op->handle, pkt, maxlen);
} while ((len == -2 || len == 0) &&
((OF_milliseconds() - tick0) < tmo_ms));
#ifdef NETIF_DEBUG
printf("netif_get: received len=%d\n", len);
#endif
if (len < 12)
return -1;
#ifdef NETIF_DEBUG
{
struct ether_header *eh = pkt;
printf("dst: %s ", ether_sprintf(eh->ether_dhost));
printf("src: %s ", ether_sprintf(eh->ether_shost));
printf("type: 0x%x\n", eh->ether_type & 0xFFFF);
}
#endif
return len;
}
/*
* Shouldn't really be here, but is used solely for networking, so...
*/
time_t
getsecs()
{
return OF_milliseconds() / 1000;
}