static
zsock_t* subscriber_pull_socket_new(zconfig_t* config)
{
zsock_t *socket = zsock_new(ZMQ_PULL);
assert(socket);
zsock_set_linger(socket, 0);
zsock_set_reconnect_ivl(socket, 100); // 100 ms
zsock_set_reconnect_ivl_max(socket, 10 * 1000); // 10 s
char *pull_spec = zconfig_resolve(config, "frontend/endpoints/subscriber/pull", "tcp://*");
char *full_spec = augment_zmq_connection_spec(pull_spec, pull_port);
if (!quiet)
printf("[I] subscriber: binding PULL socket to %s\n", full_spec);
int rc = zsock_bind(socket, "%s", full_spec);
assert(rc != -1);
free(full_spec);
const char *inproc_binding = "inproc://subscriber-pull";
if (!quiet)
printf("[I] subscriber: binding PULL socket to %s\n", inproc_binding);
rc = zsock_bind(socket, "%s", inproc_binding);
assert(rc != -1);
return socket;
}
int main(int argc, char const * const *argv)
{
int rc;
zsys_set_sndhwm(1);
zsys_set_linger(100);
void *pusher = zsock_new(ZMQ_PUSH);
assert(pusher);
zsock_set_sndhwm(pusher, 1000);
zsock_set_linger(pusher, 500);
rc = zsock_connect(pusher, "tcp://localhost:12345");
assert(rc==0);
void *puller = zsock_new(ZMQ_PULL);
assert(puller);
zsock_set_rcvhwm(puller, 1000);
zsock_set_linger(puller, 500);
rc = zsock_bind(puller, "tcp://*:12345");
if (rc != 12345){
printf("bind failed: %s\n", zmq_strerror(errno));
}
assert(rc == 12345);
void *publisher = zsock_new(ZMQ_PUB);
assert(publisher);
zsock_set_sndhwm(publisher, 1000);
zsock_set_linger(publisher, 500);
rc = zsock_bind(publisher, "tcp://*:12346");
assert(rc==12346);
// set up event loop
zloop_t *loop = zloop_new();
assert(loop);
zloop_set_verbose(loop, 0);
// push data every 10 ms
rc = zloop_timer(loop, 1, 0, timer_event, pusher);
assert(rc != -1);
zmq_pollitem_t item;
item.socket = puller;
item.events = ZMQ_POLLIN;
rc = zloop_poller(loop, &item, forward, publisher);
assert(rc == 0);
rc = zloop_start(loop);
printf("zloop return: %d", rc);
zloop_destroy(&loop);
assert(loop == NULL);
return 0;
}
zactor_t *
zactor_new (zactor_fn *actor, void *args)
{
zactor_t *self = (zactor_t *) zmalloc (sizeof (zactor_t));
if (!self)
return NULL;
self->tag = ZACTOR_TAG;
shim_t *shim = (shim_t *) zmalloc (sizeof (shim_t));
if (!shim)
return NULL;
// Create front-to-back pipe pair
self->pipe = zsock_new (ZMQ_PAIR);
assert (self->pipe);
char endpoint [32];
while (true) {
sprintf (endpoint, "inproc://zactor-%04x-%04x\n",
randof (0x10000), randof (0x10000));
if (zsock_bind (self->pipe, "%s", endpoint) == 0)
break;
}
shim->pipe = zsock_new (ZMQ_PAIR);
assert (shim->pipe);
int rc = zsock_connect (shim->pipe, "%s", endpoint);
assert (rc != -1);
shim->handler = actor;
shim->args = args;
#if defined (__UNIX__)
pthread_t thread;
pthread_create (&thread, NULL, s_thread_shim, shim);
pthread_detach (thread);
#elif defined (__WINDOWS__)
HANDLE handle = (HANDLE) _beginthreadex (
NULL, // Handle is private to this process
0, // Use a default stack size for new thread
&s_thread_shim, // Start real thread function via this shim
shim, // Which gets arguments shim
CREATE_SUSPENDED, // Set thread priority before starting it
NULL); // We don't use the thread ID
assert (handle);
// Set child thread priority to same as current
int priority = GetThreadPriority (GetCurrentThread ());
SetThreadPriority (handle, priority);
// Start thread & release resources
ResumeThread (handle);
CloseHandle (handle);
#endif
// Mandatory handshake for new actor so that constructor returns only
// when actor has also initialized. This eliminates timing issues at
// application start up.
zsock_wait (self->pipe);
return self;
}
zyre_t *
zyre_new (const char *name)
{
zyre_t *self = (zyre_t *) zmalloc (sizeof (zyre_t));
assert (self);
// Create front-to-back pipe pair for data traffic
self->inbox = zsock_new (ZMQ_PAIR);
assert (self->inbox);
char endpoint [32];
while (true) {
sprintf (endpoint, "inproc://zyre-%04x-%04x\n",
randof (0x10000), randof (0x10000));
if (zsock_bind (self->inbox, "%s", endpoint) == 0)
break;
}
// Create other half of traffic pipe
zsock_t *outbox = zsock_new_pair (endpoint);
assert (outbox);
// Start node engine and wait for it to be ready
self->actor = zactor_new (zyre_node_actor, outbox);
assert (self->actor);
// Send name, if any, to node ending
if (name)
zstr_sendx (self->actor, "SET NAME", name, NULL);
return self;
}
int main (void)
{
printf("Starting dealer...\n");
// Socket to talk to clients
zsock_t *server = zsock_new (ZMQ_DEALER);
int rc = zsock_bind (server, "tcp://*:5556");
checkRetCode(rc);
printf("Hiding from others...\n");
char* msg = "LucTeo (blue shirt + red)";
int caught = 0;
// while ( 1 )
{
rc = zstr_send (server, msg);
checkRetCode(rc);
if ( !caught )
{
printf("I'm caught. :(\n");
msg = "Too late, secret was secret but it's taken";
caught = 1;
}
}
// zsock_destroy (&server);
return 0;
}
// Checks whether client can connect to server
static bool
s_can_connect (zsock_t **server, zsock_t **client)
{
int port_nbr = zsock_bind (*server, "tcp://127.0.0.1:*");
assert (port_nbr > 0);
int rc = zsock_connect (*client, "tcp://127.0.0.1:%d", port_nbr);
assert (rc == 0);
// Give the connection time to fail if that's the plan
zclock_sleep (200);
// By default PUSH sockets block if there's no peer
zsock_set_sndtimeo (*server, 200);
zstr_send (*server, "Hello, World");
zpoller_t *poller = zpoller_new (*client, NULL);
assert (poller);
bool success = (zpoller_wait (poller, 400) == *client);
zpoller_destroy (&poller);
zsock_destroy (client);
zsock_destroy (server);
*server = zsock_new (ZMQ_PUSH);
assert (*server);
*client = zsock_new (ZMQ_PULL);
assert (*client);
return success;
}
static self_t *
s_self_new (zsock_t *pipe, zcertstore_t *certstore)
{
self_t *self = (self_t *) zmalloc (sizeof (self_t));
assert (self);
if (certstore) {
self->certstore = certstore;
self->allow_any = false;
}
self->pipe = pipe;
self->whitelist = zhashx_new ();
assert (self->whitelist);
self->blacklist = zhashx_new ();
// Create ZAP handler and get ready for requests
assert (self->blacklist);
self->handler = zsock_new (ZMQ_REP);
assert (self->handler);
int rc = zsock_bind (self->handler, ZAP_ENDPOINT);
assert (rc == 0);
self->poller = zpoller_new (self->pipe, self->handler, NULL);
assert (self->poller);
return self;
}
JNIEXPORT jint JNICALL
Java_org_zeromq_czmq_Zsock__1_1bind (JNIEnv *env, jclass c, jlong self, jstring format)
{
char *format_ = (char *) (*env)->GetStringUTFChars (env, format, NULL);
jint bind_ = (jint) zsock_bind ((zsock_t *) (intptr_t) self, "%s", format_);
(*env)->ReleaseStringUTFChars (env, format, format_);
return bind_;
}
static
zsock_t* subscriber_push_socket_new()
{
zsock_t *socket = zsock_new(ZMQ_PUSH);
assert(socket);
int rc = zsock_bind(socket, "inproc://graylog-forwarder-subscriber");
assert(rc == 0);
return socket;
}
static
zsock_t* subscriber_push_socket_new(zconfig_t* config)
{
zsock_t *socket = zsock_new(ZMQ_PUSH);
assert(socket);
zsock_set_sndtimeo(socket, 10);
int rc = zsock_bind(socket, "inproc://subscriber");
assert(rc == 0);
return socket;
}
void
zmailer_msg_test (bool verbose)
{
printf (" * zmailer_msg:");
if (verbose)
printf ("\n");
// @selftest
// Simple create/destroy test
zmailer_msg_t *self = zmailer_msg_new ();
assert (self);
zmailer_msg_destroy (&self);
// Create pair of sockets we can send through
// We must bind before connect if we wish to remain compatible with ZeroMQ < v4
zsock_t *output = zsock_new (ZMQ_DEALER);
assert (output);
int rc = zsock_bind (output, "inproc://selftest-zmailer_msg");
assert (rc == 0);
zsock_t *input = zsock_new (ZMQ_ROUTER);
assert (input);
rc = zsock_connect (input, "inproc://selftest-zmailer_msg");
assert (rc == 0);
// Encode/send/decode and verify each message type
int instance;
self = zmailer_msg_new ();
zmailer_msg_set_id (self, ZMAILER_MSG_MAIL);
zmailer_msg_set_from (self, "Life is short but Now lasts for ever");
zmailer_msg_set_to (self, "Life is short but Now lasts for ever");
zmailer_msg_set_subject (self, " test subject ");
zmailer_msg_set_request (self, " this is the text to be sent ");
// Send twice
zmailer_msg_send (self, output);
zmailer_msg_send (self, output);
for (instance = 0; instance < 2; instance++) {
zmailer_msg_recv (self, input);
assert (zmailer_msg_routing_id (self));
assert (streq (zmailer_msg_from (self), "Life is short but Now lasts for ever"));
assert (streq (zmailer_msg_to (self), "Life is short but Now lasts for ever"));
assert (streq (zmailer_msg_subject (self), " test subject "));
assert (streq (zmailer_msg_request (self), " this is the text to be sent "));
}
zmailer_msg_destroy (&self);
zsock_destroy (&input);
zsock_destroy (&output);
// @end
printf ("OK\n");
}
STATIC mp_obj_t socket_bind(mp_obj_t self_in, mp_obj_t addr_in) {
socket_obj_t *socket = self_in;
socket_check_closed(socket);
struct sockaddr sockaddr;
parse_inet_addr(socket, addr_in, &sockaddr);
int res = zsock_bind(socket->ctx, &sockaddr, sizeof(sockaddr));
RAISE_SOCK_ERRNO(res);
return mp_const_none;
}
void
zhttp_client_test (bool verbose)
{
#if defined(HAVE_LIBCURL) && defined(ZMQ_STREAM)
printf (" * zhttp_client: ");
zsock_t *server = zsock_new_stream (NULL);
int port = zsock_bind (server, "tcp://127.0.0.1:*");
char url[255];
sprintf (url, "http://127.0.0.1:%d", port);
// @selftest
// Simple create/destroy test
zhttp_client_t *self = zhttp_client_new (verbose);
assert (self);
// Send the get request
zlistx_t *headers = zlistx_new ();
zlistx_add_end (headers, "Host: zeromq.org");
zhttp_client_get (self, url, headers, NULL);
zlistx_destroy (&headers);
// Receive request on the server
zchunk_t *routing_id;
char *request;
int rc = zsock_recv (server, "cs", &routing_id, &request);
assert (rc == 0);
// Send the response
char* response = "HTTP/1.1 200 OK\r\nContent-Length: 5\r\n\r\nHello";
zsock_send (server, "cs", routing_id, response);
// Receive the response on the http client
int code;
zchunk_t *data;
zhttp_client_recv (self, &code, &data, NULL);
assert (zchunk_streq (data, "Hello"));
// Sending another request, without being answer
// Checking the client ability to stop while request are inprogres
zhttp_client_get (self, url, NULL, NULL);
zchunk_destroy (&data);
zchunk_destroy (&routing_id);
zstr_free (&request);
zhttp_client_destroy (&self);
zsock_destroy (&server);
// @end
printf ("OK\n");
#endif
}
void
zmonitor_test (bool verbose)
{
printf (" * zmonitor: ");
if (verbose)
printf ("\n");
#if defined (ZMQ_EVENT_ALL)
// @selftest
zsock_t *client = zsock_new (ZMQ_DEALER);
assert (client);
zactor_t *clientmon = zactor_new (zmonitor, client);
assert (clientmon);
if (verbose)
zstr_sendx (clientmon, "VERBOSE", NULL);
zstr_sendx (clientmon, "LISTEN", "LISTENING", "ACCEPTED", NULL);
zstr_sendx (clientmon, "START", NULL);
zsock_wait (clientmon);
zsock_t *server = zsock_new (ZMQ_DEALER);
assert (server);
zactor_t *servermon = zactor_new (zmonitor, server);
assert (servermon);
if (verbose)
zstr_sendx (servermon, "VERBOSE", NULL);
zstr_sendx (servermon, "LISTEN", "CONNECTED", "DISCONNECTED", NULL);
zstr_sendx (servermon, "START", NULL);
zsock_wait (servermon);
// Allow a brief time for the message to get there...
zmq_poll (NULL, 0, 200);
// Check client is now listening
int port_nbr = zsock_bind (client, "tcp://127.0.0.1:*");
assert (port_nbr != -1);
s_assert_event (clientmon, "LISTENING");
// Check server connected to client
zsock_connect (server, "tcp://127.0.0.1:%d", port_nbr);
s_assert_event (servermon, "CONNECTED");
// Check client accepted connection
s_assert_event (clientmon, "ACCEPTED");
zactor_destroy (&clientmon);
zactor_destroy (&servermon);
zsock_destroy (&client);
zsock_destroy (&server);
#endif
// @end
printf ("OK\n");
}
int
zsock_attach (zsock_t *self, const char *endpoints, bool serverish)
{
assert (self);
if (!endpoints)
return 0;
// We hold each individual endpoint here
char endpoint [256];
while (*endpoints) {
const char *delimiter = strchr (endpoints, ',');
if (!delimiter)
delimiter = endpoints + strlen (endpoints);
if (delimiter - endpoints > 255)
return -1;
memcpy (endpoint, endpoints, delimiter - endpoints);
endpoint [delimiter - endpoints] = 0;
int rc;
if (endpoint [0] == '@')
rc = zsock_bind (self, "%s", endpoint + 1);
else
if (endpoint [0] == '>')
rc = zsock_connect (self, "%s", endpoint + 1);
else
if (serverish)
rc = zsock_bind (self, "%s", endpoint);
else
rc = zsock_connect (self, "%s", endpoint);
if (rc == -1)
return -1; // Bad endpoint syntax
if (*delimiter == 0)
break;
endpoints = delimiter + 1;
}
return 0;
}
static
zsock_t* subscriber_pub_socket_new(zconfig_t* config)
{
zsock_t *socket = zsock_new(ZMQ_PUB);
assert(socket);
zsock_set_sndhwm(socket, 10000);
char *pub_spec = zconfig_resolve(config, "frontend/endpoints/subscriber/pub", "tcp://127.0.0.1:9651");
if (!quiet)
printf("[I] subscriber: binding PUB socket to %s\n", pub_spec);
int rc = zsock_bind(socket, "%s", pub_spec);
assert(rc != -1);
return socket;
}
static int
zyre_node_start (zyre_node_t *self)
{
// If application didn't bind explicitly, we grab an ephemeral port
// on all available network interfaces. This is orthogonal to
// beaconing, since we can connect to other peers and they will
// gossip our endpoint to others.
if (!self->bound) {
self->port = zsock_bind (self->inbox, "tcp://*:*");
if (self->port < 0)
return 1; // Could not get new port to bind to?
self->bound = true;
}
// Start UDP beaconing, if the application didn't disable it
if (self->beacon_port) {
assert (!self->beacon);
self->beacon = zbeacon_new (NULL, self->beacon_port);
if (!self->beacon)
return 1; // Not possible to start beacon
if (self->interval)
zbeacon_set_interval (self->beacon, self->interval);
zpoller_add (self->poller, zbeacon_socket (self->beacon));
// Set broadcast/listen beacon
beacon_t beacon;
beacon.protocol [0] = 'Z';
beacon.protocol [1] = 'R';
beacon.protocol [2] = 'E';
beacon.version = BEACON_VERSION;
beacon.port = htons (self->port);
zuuid_export (self->uuid, beacon.uuid);
zbeacon_noecho (self->beacon);
zbeacon_publish (self->beacon, (byte *) &beacon, sizeof (beacon_t));
zbeacon_subscribe (self->beacon, (byte *) "ZRE", 3);
// Our own host endpoint is provided by the beacon
assert (!self->endpoint);
self->endpoint = zsys_sprintf ("tcp://%s:%d",
zbeacon_hostname (self->beacon), self->port);
}
else
if (!self->endpoint) {
char *hostname = zsys_hostname ();
self->endpoint = zsys_sprintf ("tcp://%s:%d", hostname, self->port);
zstr_free (&hostname);
}
// Start polling on inbox
zpoller_add (self->poller, self->inbox);
return 0;
}
static void
s_upstream_handle_pipe (upstream_t *self)
{
char *command = zstr_recv (self->pipe);
if (streq (command, "$TERM")) {
self->terminated = true;
}
else
if (streq (command, "CONNECT")) {
char *endpoint = zstr_recv (self->pipe);
int rc = zsock_connect (self->push, "%s", endpoint);
if (rc != -1)
self->connected = true;
zstr_free (&endpoint);
zsock_bsend (self->pipe, "2", rc);
}
else
if (streq (command, "BIND")) {
char *endpoint = zstr_recv (self->pipe);
int rc = zsock_bind (self->push, "%s", endpoint);
if (rc != -1)
self->connected = true;
zstr_free (&endpoint);
zsock_bsend (self->pipe, "2", rc);
}
else
if (streq (command, "SET_SIZE")) {
int64_t size;
zsock_brecv (self->pipe, "8", &size);
self->size = size;
}
else
if (streq (command, "GET_SIZE")) {
zsock_bsend (self->pipe, "8", self->size);
}
else
if (streq (command, "SET_VARIANCE")) {
int64_t variance;
zsock_brecv (self->pipe, "8", &variance);
self->variance = variance;
}
else
if (streq (command, "GET_VARIANCE")) {
zsock_bsend (self->pipe, "8", self->variance);
}
else {
zsys_error ("upstream: invalid command: %s", command);
assert (false);
}
zstr_free (&command);
}
ztask_monitor_api_t *
ztask_monitor_api_new (char *publisher)
{
ztask_monitor_api_t *self = (ztask_monitor_api_t *) zmalloc (sizeof (ztask_monitor_api_t));
self->nodes = zhash_new ();
self->pub_timeout = 1000; // 1 sec
if (publisher) {
zclock_log ("%s", publisher);
self->pub_sock = zsock_new (ZMQ_PUB);
self->pub_port = zsock_bind (self->pub_sock, "%s", publisher);
assert (self->pub_port >= 0);
}
return self;
}
void
zloop_test (bool verbose)
{
printf (" * zloop: ");
int rc = 0;
// @selftest
// Create two PAIR sockets and connect over inproc
zsock_t *output = zsock_new (ZMQ_PAIR);
assert (output);
zsock_bind (output, "inproc://zloop.test");
zsock_t *input = zsock_new (ZMQ_PAIR);
assert (input);
zsock_connect (input, "inproc://zloop.test");
zloop_t *loop = zloop_new ();
assert (loop);
zloop_set_verbose (loop, verbose);
// Create a timer that will be cancelled
int timer_id = zloop_timer (loop, 1000, 1, s_timer_event, NULL);
zloop_timer (loop, 5, 1, s_cancel_timer_event, &timer_id);
// After 20 msecs, send a ping message to output3
zloop_timer (loop, 20, 1, s_timer_event, output);
// Set up some tickets that will never expire
zloop_set_ticket_delay (loop, 10000);
void *ticket1 = zloop_ticket (loop, s_timer_event, NULL);
void *ticket2 = zloop_ticket (loop, s_timer_event, NULL);
void *ticket3 = zloop_ticket (loop, s_timer_event, NULL);
// When we get the ping message, end the reactor
rc = zloop_reader (loop, input, s_socket_event, NULL);
assert (rc == 0);
zloop_reader_set_tolerant (loop, input);
zloop_start (loop);
zloop_ticket_delete (loop, ticket1);
zloop_ticket_delete (loop, ticket2);
zloop_ticket_delete (loop, ticket3);
zloop_destroy (&loop);
assert (loop == NULL);
zsock_destroy (&input);
zsock_destroy (&output);
// @end
printf ("OK\n");
}
static int
zyre_node_bind (zyre_node_t *self, const char *endpoint)
{
assert (!self->endpoint);
self->port = zsock_bind (self->inbox, "%s", endpoint);
if (self->port < 0)
return 1; // Endpoint is occupied, or invalid
// Successful bind, save endpoint and disable beaconing
self->endpoint = strdup (endpoint);
self->bound = true;
self->beacon_port = 0;
return 0;
}
static self_t *
s_self_new (zsock_t *pipe)
{
self_t *self = (self_t *) zmalloc (sizeof (self_t));
self->pipe = pipe;
self->whitelist = zhash_new ();
self->blacklist = zhash_new ();
// Create ZAP handler and get ready for requests
self->handler = zsock_new (ZMQ_REP);
assert (self->handler);
int rc = zsock_bind (self->handler, "inproc://zeromq.zap.01");
assert (rc == 0);
self->poller = zpoller_new (self->pipe, self->handler, NULL);
return self;
}
void MessageProcessor::init(int port, zcert_t* transportKey)
{
if (port == 0) {
OT_FAIL;
}
if (!zsys_has_curve()) {
Log::vError("Error: libzmq has no libsodium support");
OT_FAIL;
}
zstr_sendx(zmqAuth_, "CURVE", CURVE_ALLOW_ANY, NULL);
zsock_wait(zmqAuth_);
zsock_set_zap_domain(zmqSocket_, "global");
zsock_set_curve_server(zmqSocket_, 1);
zcert_apply(transportKey, zmqSocket_);
zsock_bind(zmqSocket_, "tcp://*:%d", port);
}
int
zpubsub_filter_test (bool verbose)
{
printf (" * zpubsub_filter: ");
// @selftest
// Simple create/destroy test
zpubsub_filter_t *self = zpubsub_filter_new ();
assert (self);
zpubsub_filter_destroy (&self);
// Create pair of sockets we can send through
zsock_t *input = zsock_new (ZMQ_ROUTER);
assert (input);
zsock_connect (input, "inproc://selftest-zpubsub_filter");
zsock_t *output = zsock_new (ZMQ_DEALER);
assert (output);
zsock_bind (output, "inproc://selftest-zpubsub_filter");
// Encode/send/decode and verify each message type
int instance;
self = zpubsub_filter_new ();
zpubsub_filter_set_id (self, ZPUBSUB_FILTER_FILTER);
zpubsub_filter_set_partition (self, "Life is short but Now lasts for ever");
zpubsub_filter_set_topic (self, "Life is short but Now lasts for ever");
// Send twice
zpubsub_filter_send (self, output);
zpubsub_filter_send (self, output);
for (instance = 0; instance < 2; instance++) {
zpubsub_filter_recv (self, input);
assert (zpubsub_filter_routing_id (self));
assert (streq (zpubsub_filter_partition (self), "Life is short but Now lasts for ever"));
assert (streq (zpubsub_filter_topic (self), "Life is short but Now lasts for ever"));
}
zpubsub_filter_destroy (&self);
zsock_destroy (&input);
zsock_destroy (&output);
// @end
printf ("OK\n");
return 0;
}
// Checks whether client can connect to server
static bool
s_can_connect (zsock_t **server, zsock_t **client)
{
int port_nbr = zsock_bind (*server, "tcp://127.0.0.1:*");
assert (port_nbr > 0);
int rc = zsock_connect (*client, "tcp://127.0.0.1:%d", port_nbr);
assert (rc == 0);
zstr_send (*server, "Hello, World");
zpoller_t *poller = zpoller_new (*client, NULL);
bool success = (zpoller_wait (poller, 200) == *client);
zpoller_destroy (&poller);
zsock_destroy (client);
zsock_destroy (server);
*server = zsock_new (ZMQ_PUSH);
*client = zsock_new (ZMQ_PULL);
return success;
}
static
zsock_t* subscriber_router_socket_new(zconfig_t* config)
{
zsock_t *socket = zsock_new(ZMQ_ROUTER);
assert(socket);
zsock_set_linger(socket, 0);
zsock_set_reconnect_ivl(socket, 100); // 100 ms
zsock_set_reconnect_ivl_max(socket, 10 * 1000); // 10 s
char *router_spec = zconfig_resolve(config, "frontend/endpoints/subscriber/router", "tcp://*");
char *full_spec = augment_zmq_connection_spec(router_spec, router_port);
if (!quiet)
printf("[I] subscriber: binding ROUTER socket to %s\n", full_spec);
int rc = zsock_bind(socket, "%s", full_spec);
assert(rc != -1);
free(full_spec);
return socket;
}
int main (void)
{
// Create and bind server socket
zsock_t *server = zsock_new (ZMQ_PUSH);
zsock_bind (server, "tcp://*:9000");
// Create and connect client socket
zsock_t *client = zsock_new (ZMQ_PULL);
zsock_connect (client, "tcp://127.0.0.1:9000");
// Send a single message from server to client
zstr_send (server, "Hello");
char *message = zstr_recv (client);
assert (streq (message, "Hello"));
free (message);
puts ("Grasslands test OK");
zsock_destroy (&client);
zsock_destroy (&server);
return 0;
}
static int
zyre_node_start (zyre_node_t *self)
{
if (self->beacon_port) {
// Start beacon discovery
// ------------------------------------------------------------------
assert (!self->beacon);
self->beacon = zactor_new (zbeacon, NULL);
if (!self->beacon)
return 1; // Not possible to start beacon
if (self->verbose)
zsock_send (self->beacon, "s", "VERBOSE");
}
else {
// Start gossip discovery
// ------------------------------------------------------------------
// If application didn't set an endpoint explicitly, grab ephemeral
// port on all available network interfaces.
if (!self->endpoint) {
const char *iface = zsys_interface ();
if (streq (iface, ""))
iface = "*";
self->port = zsock_bind (self->inbox, "tcp://%s:*", iface);
assert (self->port > 0); // Die on bad interface or port exhaustion
char *hostname = zsys_hostname ();
self->endpoint = zsys_sprintf ("tcp://%s:%d", hostname, self->port);
zstr_free (&hostname);
}
assert (self->gossip);
zstr_sendx (self->gossip, "PUBLISH", zuuid_str (self->uuid), self->endpoint, NULL);
// Start polling on zgossip
zpoller_add (self->poller, self->gossip);
// Start polling on inbox
zpoller_add(self->poller, self->inbox);
}
return 0;
}
static self_t *
s_self_new (zsock_t *pipe)
{
self_t *self = (self_t *) zmalloc (sizeof (self_t));
int rc = -1;
if (self) {
self->pipe = pipe;
self->whitelist = zhashx_new ();
if (self->whitelist)
self->blacklist = zhashx_new ();
// Create ZAP handler and get ready for requests
if (self->blacklist)
self->handler = zsock_new (ZMQ_REP);
if (self->handler)
rc = zsock_bind (self->handler, ZAP_ENDPOINT);
if (rc == 0)
self->poller = zpoller_new (self->pipe, self->handler, NULL);
if (!self->poller)
s_self_destroy (&self);
}
return self;
}
static int
s_get_available_port ()
{
int port_nbr = -1;
int attempts = 0;
// Choosing a random port for better results in case multiple tests are running
// in parallel on the same machine, such as during CI runs
while (port_nbr == -1 && attempts++ < 10) {
port_nbr = 49152 + randof (16383);
zsock_t *server = zsock_new (ZMQ_PUSH);
assert (server);
port_nbr = zsock_bind (server, LOCALENDPOINT, port_nbr);
zsock_destroy (&server);
}
if (port_nbr < 0) {
zsys_error ("zproxy: failed to find an available port number");
assert (false);
}
return port_nbr;
}