static void
s_self_handle_udp (self_t *self)
{
assert (self);
char peername [INET_ADDRSTRLEN];
zframe_t *frame = zsys_udp_recv (self->udpsock, peername, INET_ADDRSTRLEN);
// If filter is set, check that beacon matches it
bool is_valid = false;
if (self->filter) {
byte *filter_data = zframe_data (self->filter);
size_t filter_size = zframe_size (self->filter);
if (zframe_size (frame) >= filter_size
&& memcmp (zframe_data (frame), filter_data, filter_size) == 0)
is_valid = true;
}
// If valid, discard our own broadcasts, which UDP echoes to us
if (is_valid && self->transmit) {
byte *transmit_data = zframe_data (self->transmit);
size_t transmit_size = zframe_size (self->transmit);
if (zframe_size (frame) == transmit_size
&& memcmp (zframe_data (frame), transmit_data, transmit_size) == 0)
is_valid = false;
}
// If still a valid beacon, send on to the API
if (is_valid) {
zmsg_t *msg = zmsg_new ();
assert (msg);
zmsg_addstr (msg, peername);
zmsg_append (msg, &frame);
zmsg_send (&msg, self->pipe);
}
else
zframe_destroy (&frame);
}
///
// Receive zframe from UDP socket, and set address of peer that sent it
// The peername must be a char [INET_ADDRSTRLEN] array if IPv6 is disabled or
// NI_MAXHOST if it's enabled. Returns NULL when failing to get peer address.
// *** This is for CZMQ internal use only and may change arbitrarily ***
QmlZframe *QmlZsysAttached::udpRecv (SOCKET udpsock, const QString &peername, int peerlen) {
QmlZframe *retQ_ = new QmlZframe ();
retQ_->self = zsys_udp_recv (udpsock, peername.toUtf8().data(), peerlen);
return retQ_;
};
///
// Receive zframe from UDP socket, and set address of peer that sent it
// The peername must be a char [INET_ADDRSTRLEN] array if IPv6 is disabled or
// NI_MAXHOST if it's enabled. Returns NULL when failing to get peer address.
// *** This is for CZMQ internal use only and may change arbitrarily ***
QZframe * QZsys::udpRecv (SOCKET udpsock, const QString &peername, int peerlen)
{
QZframe *rv = new QZframe (zsys_udp_recv (udpsock, peername.toUtf8().data(), peerlen));
return rv;
}
