Method leaveGroup

tools/streamer_recorder/PracticalSocket.cpp:373–383

}

void UDPSocket::leaveGroup(const string &multicastGroup) throw(SocketException) {
  struct ip_mreq multicastRequest;

  multicastRequest.imr_multiaddr.s_addr = inet_addr(multicastGroup.c_str());
  multicastRequest.imr_interface.s_addr = htonl(INADDR_ANY);
  if (setsockopt(sockDesc, IPPROTO_IP, IP_DROP_MEMBERSHIP,
                 (raw_type *) &multicastRequest,
                 sizeof(multicastRequest)) < 0) {
    throw SocketException("Multicast group leave failed (setsockopt())", true);
  }
}