void sr_handlepacket(struct sr_instance* sr,
uint8_t * packet/* lent */,
unsigned int len,
char* interface/* lent */)
{
/* REQUIRES */
assert(sr);
assert(packet);
assert(interface);
printf("*** -> Received packet of length %d \n",len);
//print_hex2(packet, len);
EthernetFrame * frame = new EthernetFrame(packet, len);
switch(frame->GetType())
{
case ARP_PACKET:
{
sr_arpcache_insert(&sr->cache, frame->GetSrcAddress(), flip_ip(get_int(frame->GetPayload()+12)));
handle_arp_packet(sr, frame, interface);
break;
}
case IP_PACKET:
{
//
sr_arpcache_insert(&sr->cache, frame->GetSrcAddress(), flip_ip(get_int(frame->GetPayload()+12)));
handle_ip_packet(sr, frame, interface);
}
break;
default:
cerr << "Not a packet" << endl;
}
delete frame;
}/* end sr_ForwardPacket */
// for debugging and profiling
void rotate_core(int dim, pixel *src, pixel *dst, int D)
{
if (dim < 256)
{
#if DEBUG_PRINT
log("doing improved naive rotate");
#endif
new_rotate(dim, src, dst, D*2, D/2);
}
else
{
#if DEBUG_PRINT
log("doing 2 step rotate on input size %d", dim);
#endif
#if DEBUG_PROFILE_TIME
clock_t test, start, middle, end;
test = clock();
copy_block(dim, src, dst, D);
start = clock();
#elif DEBUG_PROFILE_TIMES
unsigned test, start, middle, end;
test = get_seconds();
copy_block(dim, src, dst, D);
start = get_seconds();
#endif
// transpose the image in src and store
transpose_block(dim, src, dst, D);
#if DEBUG_PROFILE_TIME
middle = clock();
#elif DEBUG_PROFILE_TIMES
middle = get_seconds();
#endif
// perform row exchange on the transposed image
flip_ip(dim, dst);
#if DEBUG_PROFILE_TIME
end = clock();
log("test took %u transpose took %u and flip took %u", (float)start - (float)test, (float)middle - (float)start, (float)end - (float)middle);
#elif DEBUG_PROFILE_TIMES
end = get_seconds();
log("test took %u transpose took %u and flip took %u", start - test, middle - start, end - middle);
#endif
}
}
