tool/mbed/mbed-sdk/libraries/tests/net/helloworld/multicast_send/main.cpp

   1 #include "mbed.h"
   2 #include "EthernetInterface.h"
   3
   4 const char* MCAST_GRP = "224.1.1.1";
   5 const int MCAST_PORT = 5007;
   6
   7 int main() {
   8     EthernetInterface eth;
   9     eth.init(); //Use DHCP
  10     eth.connect();
  11
  12     UDPSocket sock;
  13     sock.init();
  14
  15     Endpoint multicast_group;
  16     multicast_group.set_address(MCAST_GRP, MCAST_PORT);
  17
  18     char out_buffer[] = "very important data";
  19     while (true) {
  20         printf("Multicast to group: %s\n", MCAST_GRP);
  21         sock.sendTo(multicast_group, out_buffer, sizeof(out_buffer));
  22         Thread::wait(1000);
  23     }
  24 }