Findout if any handles is read or writable
unravel_network_wait
uint unravel_network_wait(UHandle **handles, boolean *read, boolean *write, unsigned int handle_count, unsigned int microseconds);
unravel_network_receive
int unravel_network_receive(UHandle *handle, UnravelAddress *from);
unravel_network_address_print
void unravel_network_address_print(UnravelAddress *address, char *text_buffer, uint text_buffer_size);
unravel_network_address_lookup
boolean unravel_network_address_lookup(UnravelAddress *address, char *dns_name);