static zre_peer_t *
s_require_peer (agent_t *self, char *identity, char *address, uint16_t port)
{
zre_peer_t *peer = (zre_peer_t *) zhash_lookup (self->peers, identity);
if (!peer) {
// Purge any previous peer on same endpoint
char endpoint [100];
snprintf (endpoint, 100, "%s:%hu", address, port);
zhash_foreach (self->peers, agent_peer_purge, endpoint);
peer = zre_peer_new (identity, self->peers, self->ctx);
zre_peer_connect (peer, self->identity, endpoint);
// Handshake discovery by sending HELLO as first message
zre_msg_t *msg = zre_msg_new (ZRE_MSG_HELLO);
zre_msg_ipaddress_set (msg, zre_udp_host (self->udp));
zre_msg_mailbox_set (msg, self->port);
zre_msg_groups_set (msg, zhash_keys (self->own_groups));
zre_msg_status_set (msg, self->status);
zre_msg_headers_set (msg, zhash_dup (self->headers));
zre_peer_send (peer, &msg);
zre_log_info (self->log, ZRE_LOG_MSG_EVENT_ENTER,
zre_peer_endpoint (peer), endpoint);
// Now tell the caller about the peer
zstr_sendm (self->pipe, "ENTER");
zstr_send (self->pipe, identity);
}
return peer;
}
int
zre_msg_send_hello (
void *output,
uint16_t sequence,
char *ipaddress,
uint16_t mailbox,
zlist_t *groups,
byte status,
zhash_t *headers)
{
zre_msg_t *self = zre_msg_new (ZRE_MSG_HELLO);
zre_msg_sequence_set (self, sequence);
zre_msg_ipaddress_set (self, ipaddress);
zre_msg_mailbox_set (self, mailbox);
zre_msg_groups_set (self, zlist_dup (groups));
zre_msg_status_set (self, status);
zre_msg_headers_set (self, zhash_dup (headers));
return zre_msg_send (&self, output);
}
