static void
s_pub_metric(mlm_client_t * mlm, const char *key, const char *dev_name)
{
char topic[100], value[100];
snprintf (topic, 100, "%s.%s", key, dev_name );
zmsg_t *msg = zmsg_new ();
zmsg_addstr (msg, dev_name);
zmsg_addstr (msg, key);
snprintf (value, 100, "%li", random() % 16 + 10 );
zmsg_addstr (msg, value);
mlm_client_send (mlm, topic, &msg);
printf ("sending %s/%s/%s\n", dev_name, key, value);
}
void
mlm_server_test (bool verbose)
{
printf (" * mlm_server: ");
if (verbose)
printf ("\n");
// @selftest
zactor_t *server = zactor_new (mlm_server, "mlm_server_test");
if (verbose)
zstr_send (server, "VERBOSE");
zstr_sendx (server, "BIND", "tcp://127.0.0.1:*", NULL);
zstr_sendx (server, "PORT", NULL);
char *command, *port;
int rc = zstr_recvx (server, &command, &port, NULL);
assert (rc == 2);
assert (streq (command, "PORT"));
assert (strlen (port) > 0 && strlen (port) < 6);
assert (!streq (port, "-1"));
zsock_t *reader = zsock_new (ZMQ_DEALER);
assert (reader);
zsock_connect (reader, "tcp://127.0.0.1:%s", port);
zsock_set_rcvtimeo (reader, 500);
mlm_proto_t *proto = mlm_proto_new ();
// Server insists that connection starts properly
mlm_proto_set_id (proto, MLM_PROTO_STREAM_WRITE);
mlm_proto_send (proto, reader);
zclock_sleep (500); // to calm things down && make memcheck pass. Thanks @malanka
mlm_proto_recv (proto, reader);
zclock_sleep (500); // detto as above
assert (mlm_proto_id (proto) == MLM_PROTO_ERROR);
assert (mlm_proto_status_code (proto) == MLM_PROTO_COMMAND_INVALID);
// Now do a stream publish-subscribe test
zsock_t *writer = zsock_new (ZMQ_DEALER);
assert (writer);
zsock_connect (writer, "tcp://127.0.0.1:%s", port);
zsock_set_rcvtimeo (reader, 500);
// Open connections from both reader and writer
mlm_proto_set_id (proto, MLM_PROTO_CONNECTION_OPEN);
mlm_proto_send (proto, reader);
mlm_proto_recv (proto, reader);
assert (mlm_proto_id (proto) == MLM_PROTO_OK);
mlm_proto_set_id (proto, MLM_PROTO_CONNECTION_OPEN);
mlm_proto_send (proto, writer);
mlm_proto_recv (proto, writer);
assert (mlm_proto_id (proto) == MLM_PROTO_OK);
// Prepare to write and read a "weather" stream
mlm_proto_set_id (proto, MLM_PROTO_STREAM_WRITE);
mlm_proto_set_stream (proto, "weather");
mlm_proto_send (proto, writer);
mlm_proto_recv (proto, writer);
assert (mlm_proto_id (proto) == MLM_PROTO_OK);
mlm_proto_set_id (proto, MLM_PROTO_STREAM_READ);
mlm_proto_set_pattern (proto, "temp.*");
mlm_proto_send (proto, reader);
mlm_proto_recv (proto, reader);
assert (mlm_proto_id (proto) == MLM_PROTO_OK);
// Now send some weather data, with null contents
mlm_proto_set_id (proto, MLM_PROTO_STREAM_SEND);
mlm_proto_set_subject (proto, "temp.moscow");
mlm_proto_send (proto, writer);
mlm_proto_set_subject (proto, "rain.moscow");
mlm_proto_send (proto, writer);
mlm_proto_set_subject (proto, "temp.chicago");
mlm_proto_send (proto, writer);
mlm_proto_set_subject (proto, "rain.chicago");
mlm_proto_send (proto, writer);
mlm_proto_set_subject (proto, "temp.london");
mlm_proto_send (proto, writer);
mlm_proto_set_subject (proto, "rain.london");
mlm_proto_send (proto, writer);
// We should receive exactly three deliveries, in order
mlm_proto_recv (proto, reader);
assert (mlm_proto_id (proto) == MLM_PROTO_STREAM_DELIVER);
assert (streq (mlm_proto_subject (proto), "temp.moscow"));
mlm_proto_recv (proto, reader);
assert (mlm_proto_id (proto) == MLM_PROTO_STREAM_DELIVER);
assert (streq (mlm_proto_subject (proto), "temp.chicago"));
mlm_proto_recv (proto, reader);
assert (mlm_proto_id (proto) == MLM_PROTO_STREAM_DELIVER);
assert (streq (mlm_proto_subject (proto), "temp.london"));
mlm_proto_destroy (&proto);
// Finished, we can clean up
zsock_destroy (&writer);
zsock_destroy (&reader);
zactor_destroy (&server);
zstr_free (&port);
zstr_free (&command);
// Test Case:
// CLIENTLIST command
{
const char *endpoint = "inproc://mlm_server_clientlist_test";
zactor_t *server = zactor_new (mlm_server, "mlm_server_clientlist_test");
if (verbose)
zstr_send (server, "VERBOSE");
zstr_sendx (server, "BIND", endpoint, NULL);
mlm_client_t *client_1 = mlm_client_new ();
int rv = mlm_client_connect (client_1, endpoint, 1000, "Karol");
assert (rv >= 0);
mlm_client_t *client_2 = mlm_client_new ();
rv = mlm_client_connect (client_2, endpoint, 1000, "Tomas");
assert (rv >= 0);
mlm_client_t *client_3 = mlm_client_new ();
rv = mlm_client_connect (client_3, endpoint, 1000, "Alenka");
assert (rv >= 0);
zclock_sleep (500);
zstr_sendx (server, "CLIENTLIST", NULL);
zmsg_t *message = zmsg_recv (server);
assert (message);
assert (zmsg_size (message) == 4);
char *pop = zmsg_popstr (message);
assert (streq (pop, "CLIENTLIST"));
zstr_free (&pop);
zlistx_t *expected_names = zlistx_new ();
assert (expected_names);
zlistx_set_destructor (expected_names, (czmq_destructor *) zstr_free);
zlistx_set_duplicator (expected_names, (czmq_duplicator *) strdup);
zlistx_set_comparator (expected_names, (czmq_comparator *) strcmp);
zlistx_add_end (expected_names, (void *) "Karol");
zlistx_add_end (expected_names, (void *) "Tomas");
zlistx_add_end (expected_names, (void *) "Alenka");
pop = zmsg_popstr (message);
assert (pop);
void *handle = zlistx_find (expected_names, pop);
assert (handle);
rv = zlistx_delete (expected_names, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop);
handle = zlistx_find (expected_names, pop);
assert (handle);
rv = zlistx_delete (expected_names, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop);
handle = zlistx_find (expected_names, pop);
assert (handle);
rv = zlistx_delete (expected_names, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop == NULL);
assert (zlistx_size (expected_names) == 0);
zmsg_destroy (&message);
// remove a client Karol
mlm_client_destroy (&client_1);
zlistx_add_end (expected_names, (void *) "Tomas");
zlistx_add_end (expected_names, (void *) "Alenka");
zstr_sendx (server, "CLIENTLIST", NULL);
zclock_sleep (100);
message = zmsg_recv (server);
assert (message);
assert (zmsg_size (message) == 3);
pop = zmsg_popstr (message);
assert (streq (pop, "CLIENTLIST"));
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop);
handle = zlistx_find (expected_names, pop);
assert (handle);
rv = zlistx_delete (expected_names, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop);
handle = zlistx_find (expected_names, pop);
assert (handle);
rv = zlistx_delete (expected_names, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop == NULL);
assert (zlistx_size (expected_names) == 0);
zlistx_destroy (&expected_names);
zmsg_destroy (&message);
mlm_client_destroy (&client_2);
mlm_client_destroy (&client_3);
zactor_destroy (&server);
}
// Test Case:
// STREAMLIST command
{
const char *endpoint = "inproc://mlm_server_streamlist_test";
zactor_t *server = zactor_new (mlm_server, "mlm_server_streamlist_test");
if (verbose)
zstr_send (server, "VERBOSE");
zstr_sendx (server, "BIND", endpoint, NULL);
mlm_client_t *client_1 = mlm_client_new ();
int rv = mlm_client_connect (client_1, endpoint, 1000, "Karol");
assert (rv != -1);
rv = mlm_client_set_producer (client_1, "STREAM_1");
assert (rv != -1);
mlm_client_t *client_2 = mlm_client_new ();
rv = mlm_client_connect (client_2, endpoint, 1000, "Tomas");
assert (rv != -1);
rv = mlm_client_set_producer (client_2, "STREAM_2");
assert (rv != -1);
mlm_client_t *client_3 = mlm_client_new ();
rv = mlm_client_connect (client_3, endpoint, 1000, "Alenka");
assert (rv != -1);
rv = mlm_client_set_consumer (client_3, "STREAM_2", ".*");
assert (rv != -1);
zclock_sleep (100);
zlistx_t *expected_streams = zlistx_new ();
assert (expected_streams);
zlistx_set_destructor (expected_streams, (czmq_destructor *) zstr_free);
zlistx_set_duplicator (expected_streams, (czmq_duplicator *) strdup);
zlistx_set_comparator (expected_streams, (czmq_comparator *) strcmp);
zlistx_add_end (expected_streams, (void *) "STREAM_1");
zlistx_add_end (expected_streams, (void *) "STREAM_2");
zstr_sendx (server, "STREAMLIST", NULL);
zmsg_t *message = zmsg_recv (server);
assert (message);
assert (zmsg_size (message) == 3);
char *pop = zmsg_popstr (message);
assert (streq (pop, "STREAMLIST"));
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop);
void *handle = zlistx_find (expected_streams, pop);
assert (handle);
rv = zlistx_delete (expected_streams, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop);
handle = zlistx_find (expected_streams, pop);
assert (handle);
rv = zlistx_delete (expected_streams, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop == NULL);
assert (zlistx_size (expected_streams) == 0);
zmsg_destroy (&message);
// NOTE: Currently when producer disconnects, malamute does not destroy the stream
// Therefore it doesn't make sense to test removal of streams, but addition
mlm_client_t *client_4 = mlm_client_new ();
rv = mlm_client_connect (client_4, endpoint, 1000, "Michal");
assert (rv >= 0);
rv = mlm_client_set_producer (client_4, "New stream");
assert (rv >= 0);
zlistx_add_end (expected_streams, (void *) "STREAM_1");
zlistx_add_end (expected_streams, (void *) "STREAM_2");
zlistx_add_end (expected_streams, (void *) "New stream");
zclock_sleep (100);
zstr_sendx (server, "STREAMLIST", NULL);
zclock_sleep (100);
message = zmsg_recv (server);
assert (message);
assert (zmsg_size (message) == 4);
pop = zmsg_popstr (message);
assert (streq (pop, "STREAMLIST"));
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop);
handle = zlistx_find (expected_streams, pop);
assert (handle);
rv = zlistx_delete (expected_streams, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop);
handle = zlistx_find (expected_streams, pop);
assert (handle);
rv = zlistx_delete (expected_streams, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop);
handle = zlistx_find (expected_streams, pop);
assert (handle);
rv = zlistx_delete (expected_streams, handle);
assert (rv == 0);
zstr_free (&pop);
pop = zmsg_popstr (message);
assert (pop == NULL);
assert (zlistx_size (expected_streams) == 0);
zlistx_destroy (&expected_streams);
zmsg_destroy (&message);
mlm_client_destroy (&client_1);
mlm_client_destroy (&client_2);
mlm_client_destroy (&client_3);
mlm_client_destroy (&client_4);
zactor_destroy (&server);
}
// Regression Test Case:
// Segfault from deregistering zombie connection
{
const char *endpoint = "inproc://mlm_server_deregister_zombie_connection_test";
zactor_t *server = zactor_new (mlm_server, "mlm_server_deregister_zombie_connection_test");
if (verbose)
zstr_send (server, "VERBOSE");
zstr_sendx (server, "BIND", endpoint, NULL);
zstr_sendx (server, "SET", "server/timeout", "3000", NULL); // 3 second client timeout
zsock_t *reader = zsock_new (ZMQ_DEALER);
assert (reader);
zsock_connect (reader, "inproc://mlm_server_deregister_zombie_connection_test");
zsock_set_rcvtimeo (reader, 500);
mlm_proto_t *proto = mlm_proto_new ();
// If the malamute server is restarted and clients have queued
// up ping messages, the'll be sent before any
// CONNECTION_OPEN. The server eventually tries to deregister
// this and (previously) would derefence a null pointer for
// the client address.
mlm_proto_set_id (proto, MLM_PROTO_CONNECTION_PING);
mlm_proto_send (proto, reader);
printf("Regression test for segfault due to leftover client messages after restart...\n");
// Give the server more than 3 seconds to time out the client...
zclock_sleep (3100);
printf("passed\n");
mlm_proto_destroy (&proto);
zsock_destroy (&reader);
zactor_destroy (&server);
}
{
const char *endpoint = "inproc://mlm_server_disconnect_pending_stream_traffic";
zactor_t *server = zactor_new (mlm_server, "mlm_server_disconnect_pending_stream_traffic");
if (verbose) {
zstr_send (server, "VERBOSE");
printf("Regression test for use-after-free with pending stream traffic after disconnect\n");
}
zstr_sendx (server, "BIND", endpoint, NULL);
mlm_client_t *producer = mlm_client_new ();
assert (mlm_client_connect (producer, endpoint, 1000, "producer") >= 0);
assert (mlm_client_set_producer (producer, "STREAM_TEST") >= 0);
zstr_sendx (server, "SLOW_TEST_MODE", NULL);
mlm_client_t *consumer = mlm_client_new ();
assert (mlm_client_connect (consumer, endpoint, 1000, "consumer") >= 0);
assert (mlm_client_set_consumer (consumer, "STREAM_TEST", ".*") >= 0);
zmsg_t *msg = zmsg_new ();
zmsg_addstr (msg, "world");
assert (mlm_client_send (producer, "hello", &msg) >= 0);
mlm_client_destroy (&consumer);
zclock_sleep (2000);
mlm_client_destroy (&producer);
zactor_destroy (&server);
}
// @end
printf ("OK\n");
}
int main (int argc, char **argv) {
unsigned int count = 0;
parse_args(argc, argv);
if (!endpoint || !name) {
zsys_error("endpoint or name not specified.");
usage();
}
mlm_client_t *client = mlm_client_new ();
assert(client);
int rv;
rv = mlm_client_connect(client, endpoint, 5000, name);
if (rv == -1) {
zsys_error("connection failed.");
mlm_client_destroy (&client);
return -1;
}
rv = mlm_client_set_producer (client, "stream");
if (rv == -1) {
zsys_error("set_producer failed.");
mlm_client_destroy (&client);
return -2;
}
zsock_t *pipe = mlm_client_msgpipe (client);
if (!pipe) {
zsys_error ("mlm_client_msgpipe() failed.");
mlm_client_destroy (&client);
return -3;
}
zpoller_t *poller = zpoller_new (pipe, NULL);
if (!poller) {
zsys_error("zpoller_new() failed.");
mlm_client_destroy (&client);
return -4;
}
while ( !zsys_interrupted && ( !num_messages || count < num_messages) ) {
zsock_t *which = zpoller_wait (poller, interval);
if ( which != NULL ) {
// so we have something to receive
zmsg_t *recv_msg = mlm_client_recv (client);
zmsg_destroy (&recv_msg);
}
// in any case we are going to send something
// zclock_sleep(interval);
zmsg_t *msg = zmsg_new();
assert (msg);
if ( count % 10 == 0) {
zmsg_pushstr (msg, "exit");
} else {
zmsg_pushstr (msg, "hello");
}
zmsg_print(msg);
mlm_client_send (client, "testing message", &msg);
zmsg_destroy (&msg);
++count;
}
mlm_client_destroy(&client);
zpoller_destroy(&poller);
free(endpoint);
free(name);
zsys_info ("finished, sent: %u.", count);
return 0;
}
