コード例 #1
0
JNIEXPORT jstring JNICALL
Java_org_zeromq_czmq_Zsys__1_1hostname (JNIEnv *env, jclass c)
{
    char *hostname_ = (char *) zsys_hostname ();
    jstring return_string_ = (*env)->NewStringUTF (env, hostname_);
    return return_string_;
}
コード例 #2
0
ファイル: zyre_node.c プロジェクト: mvala/zyre
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;
}
コード例 #3
0
ファイル: zyre_node.c プロジェクト: opedroso/zyre
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;
}
コード例 #4
0
ファイル: QmlZsys.cpp プロジェクト: taotetek/czmq
///
//  Return current host name, for use in public tcp:// endpoints. Caller gets
//  a freshly allocated string, should free it using zstr_free(). If the host
//  name is not resolvable, returns NULL.
const QString QmlZsysAttached::hostname () {
    return QString (zsys_hostname ());
};
コード例 #5
0
ファイル: zyre_node.c プロジェクト: opedroso/zyre
void
zyre_node_actor (zsock_t *pipe, void *args)
{
    //  Create node instance to pass around
    zyre_node_t *self = zyre_node_new (pipe, args);
    if (!self)                  //  Interrupted
        return;

    //  Signal actor successfully initialized
    zsock_signal (self->pipe, 0);

    //  Loop until the agent is terminated one way or another
    int64_t reap_at = zclock_mono () + REAP_INTERVAL;
    while (!self->terminated) {

        // Start beacon as soon as we can
        if (self->beacon && self->port <= 0) {
            //  Our hostname is provided by zbeacon
            zsock_send(self->beacon, "si", "CONFIGURE", self->beacon_port);
            char *hostname = zstr_recv(self->beacon);

            // Is UDP broadcast interface available?
            if (!streq(hostname, "")) {
                if (zsys_ipv6())
                    self->port = zsock_bind(self->inbox, "tcp://%s%%%s:*", zsys_ipv6_address(), zsys_interface());
                else
                    self->port = zsock_bind(self->inbox, "tcp://%s:*", hostname);

                if (self->port > 0) {
                    assert(!self->endpoint);   //  If caller set this, we'd be using gossip
                    if (streq(zsys_interface(), "*")) {
                        char *hostname = zsys_hostname();
                        self->endpoint = zsys_sprintf("tcp://%s:%d", hostname, self->port);
                        zstr_free(&hostname);
                    }
                    else {
                        self->endpoint = strdup(zsock_endpoint(self->inbox));
                    }

                    //  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);
                    zsock_send(self->beacon, "sbi", "PUBLISH",
                        (byte *)&beacon, sizeof(beacon_t), self->interval);
                    zsock_send(self->beacon, "sb", "SUBSCRIBE", (byte *) "ZRE", 3);
                    zpoller_add(self->poller, self->beacon);

                    //  Start polling on inbox
                    zpoller_add(self->poller, self->inbox);
                }
            }
            zstr_free(&hostname);
        }

        int timeout = (int) (reap_at - zclock_mono ());
        if (timeout > REAP_INTERVAL)
            timeout = REAP_INTERVAL;
        else
        if (timeout < 0)
            timeout = 0;

        zsock_t *which = (zsock_t *) zpoller_wait (self->poller, timeout);
        if (which == self->pipe)
            zyre_node_recv_api (self);
        else
        if (which == self->inbox)
            zyre_node_recv_peer (self);
        else
        if (self->beacon
        && (void *) which == self->beacon)
            zyre_node_recv_beacon (self);
        else
        if (self->gossip
        && (zactor_t *) which == self->gossip)
            zyre_node_recv_gossip (self);
        else
        if (zpoller_terminated (self->poller))
            break;          //  Interrupted, check before expired
        else
        if (zpoller_expired (self->poller)) {
            if (zclock_mono () >= reap_at) {
                void *item;
                reap_at = zclock_mono () + REAP_INTERVAL;
                //  Ping all peers and reap any expired ones
                for (item = zhash_first (self->peers); item != NULL;
                        item = zhash_next (self->peers))
                    zyre_node_ping_peer (zhash_cursor (self->peers), item, self);
            }
        }
    }
    zyre_node_destroy (&self);
}
コード例 #6
0
ファイル: zyre_node.c プロジェクト: Muraad/zyre
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");
            
        //  Our hostname is provided by zbeacon
        zsock_send (self->beacon, "si", "CONFIGURE", self->beacon_port);
        char *hostname = zstr_recv (self->beacon);
        if (streq (hostname, ""))
            return -1;              //  No UDP broadcast interface available

        self->port = zsock_bind (self->inbox, "tcp://%s:*", hostname);
        zstr_free (&hostname);
        assert (self->port > 0);    //  Die on bad interface or port exhaustion
        assert (!self->endpoint);   //  If caller set this, we'd be using gossip
        self->endpoint = strdup (zsock_endpoint (self->inbox));

        //  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);
        zsock_send (self->beacon, "sbi", "PUBLISH",
            (byte *) &beacon, sizeof (beacon_t), self->interval);
        zsock_send (self->beacon, "sb", "SUBSCRIBE", (byte *) "ZRE", 3);
        zpoller_add (self->poller, self->beacon);
    }
    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;
}
コード例 #7
0
ファイル: zsys.c プロジェクト: wysman/czmq
void
zsys_test (bool verbose)
{
    printf (" * zsys: ");
    if (verbose)
        printf ("\n");

    //  @selftest
    zsys_catch_interrupts ();

    //  Check capabilities without using the return value
    int rc = zsys_has_curve ();

    if (verbose) {
        char *hostname = zsys_hostname ();
        zsys_info ("host name is %s", hostname);
        free (hostname);
        zsys_info ("system limit is %zd ZeroMQ sockets", zsys_socket_limit ());
    }
    zsys_set_io_threads (1);
    zsys_set_max_sockets (0);
    zsys_set_linger (0);
    zsys_set_sndhwm (1000);
    zsys_set_rcvhwm (1000);
    zsys_set_pipehwm (2500);
    assert (zsys_pipehwm () == 2500);

    zsys_set_ipv6 (0);

    rc = zsys_file_delete ("nosuchfile");
    assert (rc == -1);

    bool rc_bool = zsys_file_exists ("nosuchfile");
    assert (rc_bool != true);

    rc = (int) zsys_file_size ("nosuchfile");
    assert (rc == -1);

    time_t when = zsys_file_modified (".");
    assert (when > 0);

    mode_t mode = zsys_file_mode (".");
    assert (S_ISDIR (mode));
    assert (mode & S_IRUSR);
    assert (mode & S_IWUSR);

    zsys_file_mode_private ();
    rc = zsys_dir_create ("%s/%s", ".", ".testsys/subdir");
    assert (rc == 0);
    when = zsys_file_modified ("./.testsys/subdir");
    assert (when > 0);
    assert (!zsys_file_stable ("./.testsys/subdir"));
    rc = zsys_dir_delete ("%s/%s", ".", ".testsys/subdir");
    assert (rc == 0);
    rc = zsys_dir_delete ("%s/%s", ".", ".testsys");
    assert (rc == 0);
    zsys_file_mode_default ();

    int major, minor, patch;
    zsys_version (&major, &minor, &patch);
    assert (major == CZMQ_VERSION_MAJOR);
    assert (minor == CZMQ_VERSION_MINOR);
    assert (patch == CZMQ_VERSION_PATCH);

    char *string = zsys_sprintf ("%s %02x", "Hello", 16);
    assert (streq (string, "Hello 10"));
    free (string);

    char *str64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890,.";
    int num10 = 1234567890;
    string = zsys_sprintf ("%s%s%s%s%d", str64, str64, str64, str64, num10);
    assert (strlen (string) == (4 * 64 + 10));
    free (string);

    //  Test logging system
    zsys_set_logident ("czmq_selftest");
    zsys_set_logsender ("inproc://logging");
    void *logger = zsys_socket (ZMQ_SUB, NULL, 0);
    assert (logger);
    rc = zsocket_connect (logger, "inproc://logging");
    assert (rc == 0);
    rc = zmq_setsockopt (logger, ZMQ_SUBSCRIBE, "", 0);
    assert (rc == 0);

    if (verbose) {
        zsys_error ("This is an %s message", "error");
        zsys_warning ("This is a %s message", "warning");
        zsys_notice ("This is a %s message", "notice");
        zsys_info ("This is a %s message", "info");
        zsys_debug ("This is a %s message", "debug");
        zsys_set_logident ("hello, world");
        zsys_info ("This is a %s message", "info");
        zsys_debug ("This is a %s message", "debug");

        //  Check that logsender functionality is working
        char *received = zstr_recv (logger);
        assert (received);
        zstr_free (&received);
    }
    zsys_close (logger, NULL, 0);
    //  @end

    printf ("OK\n");
}
コード例 #8
0
ファイル: qzsys.cpp プロジェクト: luccasmenezes/czmq
///
//  Return current host name, for use in public tcp:// endpoints. Caller gets
//  a freshly allocated string, should free it using zstr_free(). If the host
//  name is not resolvable, returns NULL.
const QString QZsys::hostname ()
{
    const QString rv = QString (zsys_hostname ());
    return rv;
}
コード例 #9
0
ファイル: hydrad.c プロジェクト: mknoszlig/hydra
int main (int argc, char *argv [])
{
    puts (PRODUCT);
    puts (COPYRIGHT);
    puts (NOWARRANTY);

    int argn = 1;
    bool verbose = false;
    if (argn < argc && streq (argv [argn], "-h")) {
        puts ("syntax: hydrad [ directory ]");
        puts (" -- defaults to .hydra in current directory");
        exit (0);
    }
    if (argn < argc && streq (argv [argn], "-v")) {
        verbose = true;
        argn++;
    }
    //  By default, current node runs in .hydra directory; create this if
    //  it's missing (don't create directory passed as argument);
    char *workdir = ".hydra";
    if (argn < argc)
        workdir = argv [argn++];
    else
        zsys_dir_create (workdir);

    //  ----------------------------------------------------------------------
    //  This code eventually goes into a reusable hydra actor class

    //  Switch to working directory
    zsys_info ("hydrad: data store in %s directory", workdir);
    if (zsys_dir_change (workdir)) {
        zsys_error ("hydrad: cannot access %s: %s", workdir, strerror (errno));
        return 1;
    }
    //  Check we are the only process currently running here
    if (zsys_run_as ("hydrad.lock", NULL, NULL)) {
        zsys_error ("hydrad: cannot start process safely, exiting");
        return 1;
    }
    //  Get node identity from config file, or generate new identity
    zconfig_t *config = zconfig_load ("hydra.cfg");
    if (!config) {
        //  Set defaults for Hydra service
        config = zconfig_new ("root", NULL);
        zconfig_put (config, "/server/timeout", "5000");
        zconfig_put (config, "/server/background", "0");
        zconfig_put (config, "/server/verbose", "0");
    }
    char *identity = zconfig_resolve (config, "/hydra/identity", NULL);
    if (!identity) {
        zuuid_t *uuid = zuuid_new ();
        zconfig_put (config, "/hydra/identity", zuuid_str (uuid));
        zconfig_put (config, "/hydra/nickname", "Anonymous");
        zconfig_save (config, "hydra.cfg");
        zuuid_destroy (&uuid);
    }
    //  Create store structure, if necessary
    zsys_dir_create ("content");
    zsys_dir_create ("posts");
    
    //  Start server and bind to ephemeral TCP port. We can run many
    //  servers on the same box, for testing.
    zactor_t *server = zactor_new (hydra_server, NULL);
    if (verbose)
        zstr_send (server, "VERBOSE");

    //  Bind Hydra service to ephemeral port and get that port number
    char *command;
    int port_nbr;
    zsock_send (server, "ss", "CONFIGURE", "hydra.cfg");
    zsock_send (server, "ss", "BIND", "tcp://*:*");
    zsock_send (server, "s", "PORT");
    zsock_recv (server, "si", &command, &port_nbr);
    zsys_info ("hydrad: TCP server started on port=%d", port_nbr);
    assert (streq (command, "PORT"));
    free (command);

    //  We're going to use Zyre for discovery and presence, and our own
    //  Hydra protocol for content exchange
    zyre_t *zyre = zyre_new (NULL);
    if (verbose)
        zyre_set_verbose (zyre);

    char *hostname = zsys_hostname ();
    char *endpoint = zsys_sprintf ("tcp://%s:%d", hostname, port_nbr);
    zyre_set_header (zyre, "X-HYDRA", "%s", endpoint);
    zstr_free (&endpoint);
    zstr_free (&hostname);
    if (zyre_start (zyre)) {
        zsys_info ("hydrad: can't start Zyre discovery service");
        zactor_destroy (&server);
        zyre_destroy (&zyre);
        return 1;
    }
    //  When we get a new peer, handle it
    zpoller_t *poller = zpoller_new (zyre_socket (zyre), NULL);
    while (!zpoller_terminated (poller)) {
        void *which = zpoller_wait (poller, -1);
        if (which == zyre_socket (zyre)) {
            zyre_event_t *event = zyre_event_new (zyre);
            if (zyre_event_type (event) == ZYRE_EVENT_ENTER) {
                zsys_debug ("hydrad: new peer name=%s endpoint=%s",
                            zyre_event_name (event),
                            zyre_event_header (event, "X-HYDRA"));
                s_handle_peer (zyre_event_header (event, "X-HYDRA"), verbose);
            }
            zyre_event_destroy (&event);
        }
        else
            break;
    }
    zsys_info ("hydrad: shutting down...");
    zpoller_destroy (&poller);

    //  Shutdown all services
    zactor_destroy (&server);
    zyre_destroy (&zyre);
    zconfig_destroy (&config);
    return 0;
}