void
zbeacon (zsock_t *pipe, void *args)
{
self_t *self = s_self_new (pipe);
assert (self);
// Signal successful initialization
zsock_signal (pipe, 0);
while (!self->terminated) {
// Poll on API pipe and on UDP socket
zmq_pollitem_t pollitems [] = {
{ zsock_resolve (self->pipe), 0, ZMQ_POLLIN, 0 },
{ NULL, self->udpsock, ZMQ_POLLIN, 0 }
};
long timeout = -1;
if (self->transmit) {
timeout = (long) (self->ping_at - zclock_mono ());
if (timeout < 0)
timeout = 0;
}
int pollset_size = self->udpsock? 2: 1;
if (zmq_poll (pollitems, pollset_size, timeout * ZMQ_POLL_MSEC) == -1)
break; // Interrupted
if (pollitems [0].revents & ZMQ_POLLIN)
s_self_handle_pipe (self);
if (pollitems [1].revents & ZMQ_POLLIN)
s_self_handle_udp (self);
if (self->transmit
&& zclock_mono () >= self->ping_at) {
// Send beacon to any listening peers
if (zsys_udp_send (self->udpsock, self->transmit, &self->broadcast, sizeof (inaddr_t)))
// Try to recreate UDP socket on interface
s_self_prepare_udp (self);
self->ping_at = zclock_mono () + self->interval;
}
}
s_self_destroy (&self);
}
///
// Send zframe to UDP socket, return -1 if sending failed due to
// interface having disappeared (happens easily with WiFi)
// *** This is for CZMQ internal use only and may change arbitrarily ***
int QmlZsysAttached::udpSend (SOCKET udpsock, QmlZframe *frame, inaddr_t *address, int addrlen) {
return zsys_udp_send (udpsock, frame->self, address, addrlen);
};
///
// Send zframe to UDP socket, return -1 if sending failed due to
// interface having disappeared (happens easily with WiFi)
// *** This is for CZMQ internal use only and may change arbitrarily ***
int QZsys::udpSend (SOCKET udpsock, QZframe *frame, inaddr_t *address, int addrlen)
{
int rv = zsys_udp_send (udpsock, frame->self, address, addrlen);
return rv;
}
