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_bind_proxy_sockets (zactor_t *proxy, char **frontend, char **backend)
{
if (*frontend)
zstr_free (frontend);
if (*backend)
zstr_free (backend);
*frontend = zsys_sprintf (LOCALENDPOINT, s_get_available_port ());
*backend = zsys_sprintf (LOCALENDPOINT, s_get_available_port ());
zstr_sendx (proxy, "FRONTEND", "PULL", *frontend, NULL);
zsock_wait (proxy);
zstr_sendx (proxy, "BACKEND", "PUSH", *backend, NULL);
zsock_wait (proxy);
}
int
hydra_post_save (hydra_post_t *self, const char *filename)
{
assert (self);
assert (filename);
// Creeate subdirectories if necessary
zsys_dir_create ("posts");
zsys_dir_create ("posts/blobs");
// If post content hasn't yet been serialised, write it to disk in the
// blobs directory and set the location property to point to it.
if (self->content) {
assert (!self->location);
self->location = zsys_sprintf ("posts/blobs/%s", self->digest);
FILE *output = fopen (self->location, "wb");
zchunk_write (self->content, output);
zchunk_destroy (&self->content);
fclose (output);
}
zconfig_t *root = zconfig_new ("root", NULL);
zconfig_put (root, "/post/ident", hydra_post_ident (self));
zconfig_put (root, "/post/subject", self->subject);
zconfig_put (root, "/post/timestamp", self->timestamp);
zconfig_put (root, "/post/parent-id", self->parent_id);
zconfig_put (root, "/post/mime-type", self->mime_type);
zconfig_put (root, "/post/digest", self->digest);
zconfig_put (root, "/post/location", self->location);
zconfig_putf (root, "/post/content-size", "%ld", self->content_size);
zconfig_savef (root, "posts/%s", filename);
zconfig_destroy (&root);
return 0;
}
JNIEXPORT jstring JNICALL
Java_org_zeromq_czmq_Zsys__1_1sprintf (JNIEnv *env, jclass c, jstring format)
{
char *format_ = (char *) (*env)->GetStringUTFChars (env, format, NULL);
char *sprintf_ = (char *) zsys_sprintf (format_);
jstring return_string_ = (*env)->NewStringUTF (env, sprintf_);
(*env)->ReleaseStringUTFChars (env, format, format_);
return return_string_;
}
const char *
hydra_post_ident (hydra_post_t *self)
{
assert (self);
zdigest_t *digest = zdigest_new ();
if (digest) {
char *digest_text = zsys_sprintf ("%s:%s:%s:%s:%s",
self->subject, self->timestamp, self->parent_id,
self->mime_type? self->mime_type: "", self->digest);
zdigest_update (digest, (byte *) digest_text, strlen (digest_text));
assert (strlen (zdigest_string (digest)) == ID_SIZE);
strcpy (self->ident, zdigest_string (digest));
zstr_free (&digest_text);
zdigest_destroy (&digest);
}
return self->ident;
}
static void
s_self_start (self_t *self)
{
assert (!self->sink);
char *endpoint = zsys_sprintf ("inproc://zmonitor-%p", self->monitored);
int rc;
#if defined (ZMQ_EVENT_ALL)
rc = zmq_socket_monitor (self->monitored, endpoint, self->events);
assert (rc == 0);
#endif
self->sink = zsock_new (ZMQ_PAIR);
assert (self->sink);
rc = zsock_connect (self->sink, "%s", endpoint);
assert (rc == 0);
zpoller_add (self->poller, self->sink);
free (endpoint);
}
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;
}
void
zconfig_test (bool verbose)
{
printf (" * zconfig: ");
// @selftest
const char *SELFTEST_DIR_RW = "src/selftest-rw";
const char *testbasedir = ".test_zconfig";
const char *testfile = "test.cfg";
char *basedirpath = NULL; // subdir in a test, under SELFTEST_DIR_RW
char *filepath = NULL; // pathname to testfile in a test, in dirpath
basedirpath = zsys_sprintf ("%s/%s", SELFTEST_DIR_RW, testbasedir);
assert (basedirpath);
filepath = zsys_sprintf ("%s/%s", basedirpath, testfile);
assert (filepath);
// Make sure old aborted tests do not hinder us
zdir_t *dir = zdir_new (basedirpath, NULL);
if (dir) {
zdir_remove (dir, true);
zdir_destroy (&dir);
}
zsys_file_delete (filepath);
zsys_dir_delete (basedirpath);
// Create temporary directory for test files
zsys_dir_create (basedirpath);
zconfig_t *root = zconfig_new ("root", NULL);
assert (root);
zconfig_t *section, *item;
section = zconfig_new ("headers", root);
assert (section);
item = zconfig_new ("email", section);
assert (item);
zconfig_set_value (item, "*****@*****.**");
item = zconfig_new ("name", section);
assert (item);
zconfig_set_value (item, "Justin Kayce");
zconfig_putf (root, "/curve/secret-key", "%s", "Top Secret");
zconfig_set_comment (root, " CURVE certificate");
zconfig_set_comment (root, " -----------------");
assert (zconfig_comments (root));
zconfig_save (root, filepath);
zconfig_destroy (&root);
root = zconfig_load (filepath);
if (verbose)
zconfig_save (root, "-");
assert (streq (zconfig_filename (root), filepath));
char *email = zconfig_get (root, "/headers/email", NULL);
assert (email);
assert (streq (email, "*****@*****.**"));
char *passwd = zconfig_get (root, "/curve/secret-key", NULL);
assert (passwd);
assert (streq (passwd, "Top Secret"));
zconfig_savef (root, "%s/%s", basedirpath, testfile);
assert (!zconfig_has_changed (root));
int rc = zconfig_reload (&root);
assert (rc == 0);
assert (!zconfig_has_changed (root));
zconfig_destroy (&root);
// Test chunk load/save
root = zconfig_new ("root", NULL);
assert (root);
section = zconfig_new ("section", root);
assert (section);
item = zconfig_new ("value", section);
assert (item);
zconfig_set_value (item, "somevalue");
zconfig_t *search = zconfig_locate (root, "section/value");
assert (search == item);
zchunk_t *chunk = zconfig_chunk_save (root);
assert (strlen ((char *) zchunk_data (chunk)) == 32);
char *string = zconfig_str_save (root);
assert (string);
assert (streq (string, (char *) zchunk_data (chunk)));
freen (string);
assert (chunk);
zconfig_destroy (&root);
root = zconfig_chunk_load (chunk);
assert (root);
char *value = zconfig_get (root, "/section/value", NULL);
assert (value);
assert (streq (value, "somevalue"));
// Test config can't be saved to a file in a path that doesn't
// exist or isn't writable
rc = zconfig_savef (root, "%s/path/that/doesnt/exist/%s", basedirpath, testfile);
assert (rc == -1);
zconfig_destroy (&root);
zchunk_destroy (&chunk);
// Test subtree removal
{
zconfig_t *root = zconfig_str_load (
"context\n"
" iothreads = 1\n"
" verbose = 1 # Ask for a trace\n"
"main\n"
" type = zqueue # ZMQ_DEVICE type\n"
" frontend\n"
" option\n"
" hwm = 1000\n"
" swap = 25000000 # 25MB\n"
" bind = 'inproc://addr1'\n"
" bind = 'ipc://addr2'\n"
" backend\n"
" bind = inproc://addr3\n"
);
zconfig_t *to_delete = zconfig_locate (root, "main/frontend");
assert (to_delete);
zconfig_remove (to_delete);
char *value = zconfig_get (root, "/main/type", NULL);
assert (value);
assert (streq (value, "zqueue"));
value = zconfig_get (root, "/main/backend/bind", NULL);
assert (value);
assert (streq (value, "inproc://addr3"));
value = zconfig_get (root, "/main/frontend", NULL);
assert (value);
value = zconfig_get (root, "/main/frontend/option", NULL);
assert (value == NULL);
value = zconfig_get (root, "/main/frontend/option/swap", NULL);
assert (value == NULL);
zconfig_destroy (&root);
}
// Test str_load
zconfig_t *config = zconfig_str_load (
"malamute\n"
" endpoint = ipc://@/malamute\n"
" producer = STREAM\n"
" consumer\n"
" STREAM2 = .*\n"
" STREAM3 = HAM\n"
"server\n"
" verbose = true\n"
);
assert (config);
assert (streq (zconfig_get (config, "malamute/endpoint", NULL), "ipc://@/malamute"));
assert (streq (zconfig_get (config, "malamute/producer", NULL), "STREAM"));
assert (zconfig_locate (config, "malamute/consumer"));
zconfig_t *c = zconfig_child (zconfig_locate (config, "malamute/consumer"));
assert (c);
assert (streq (zconfig_name (c), "STREAM2"));
assert (streq (zconfig_value (c), ".*"));
c = zconfig_next (c);
assert (c);
assert (streq (zconfig_name (c), "STREAM3"));
assert (streq (zconfig_value (c), "HAM"));
c = zconfig_next (c);
assert (!c);
assert (streq (zconfig_get (config, "server/verbose", NULL), "true"));
zconfig_destroy (&config);
// Delete all test files
dir = zdir_new (basedirpath, NULL);
assert (dir);
zdir_remove (dir, true);
zdir_destroy (&dir);
zstr_free (&basedirpath);
zstr_free (&filepath);
#if defined (__WINDOWS__)
zsys_shutdown();
#endif
// @end
printf ("OK\n");
}
///
// Format a string using printf formatting, returning a freshly allocated
// buffer. If there was insufficient memory, returns NULL. Free the returned
// string using zstr_free().
const QString QmlZsysAttached::sprintf (const QString &format) {
return QString (zsys_sprintf (format.toUtf8().data()));
};
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);
}
bool
serverCreateProcess (
ServerInfo *self,
char *executableName
) {
MySQLInfo *sqlInfo = &self->workersInfo[0].sqlInfo;
RedisInfo *redisInfo = &self->workersInfo[0].redisInfo;
char *globalServerIp = self->workersInfo[0].globalServerIp;
int globalServerPort = self->workersInfo[0].globalServerPort;
#ifdef WIN32
executableName = zsys_sprintf("%s.exe", executableName);
#endif
char *commandLine = zsys_sprintf("%s %d %s %d",
executableName,
self->routerInfo.routerId,
self->routerInfo.ip,
self->routerInfo.port
);
char *lastCommandLine;
lastCommandLine = zsys_sprintf("%s %d %s %d %s %s %s %s %s %d %d %s",
commandLine,
self->routerInfo.workersCount,
globalServerIp,
globalServerPort,
sqlInfo->hostname, sqlInfo->user, sqlInfo->password, sqlInfo->database,
redisInfo->hostname, redisInfo->port,
self->serverType,
self->output
);
zstr_free(&commandLine);
commandLine = lastCommandLine;
info("CommandLine : %s", commandLine);
#ifdef WIN32
STARTUPINFO si = {0};
PROCESS_INFORMATION pi = {0};
if (!CreateProcess (executableName, commandLine, NULL, NULL, FALSE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi)) {
error("Cannot launch Zone Server executable : %s.", executableName);
char *errorReason;
FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &errorReason, 0, NULL
);
error("Error reason : %s", errorReason);
return false;
}
#else
char **argv = strSplit (commandLine, ' ');
if (fork () == 0) {
if (execv (executableName, (char * const *) argv) == -1) {
error("Cannot launch Zone Server executable : %s.", executableName);
return false;
}
}
free(argv);
#endif
zstr_free(&commandLine);
return true;
}
void
zcertstore_test (bool verbose)
{
printf (" * zcertstore: ");
if (verbose)
printf ("\n");
// @selftest
const char *SELFTEST_DIR_RW = "src/selftest-rw";
const char *testbasedir = ".test_zcertstore";
const char *testfile = "mycert.txt";
char *basedirpath = NULL; // subdir in a test, under SELFTEST_DIR_RW
char *filepath = NULL; // pathname to testfile in a test, in dirpath
basedirpath = zsys_sprintf ("%s/%s", SELFTEST_DIR_RW, testbasedir);
assert (basedirpath);
filepath = zsys_sprintf ("%s/%s", basedirpath, testfile);
assert (filepath);
// Make sure old aborted tests do not hinder us
zdir_t *dir = zdir_new (basedirpath, NULL);
if (dir) {
zdir_remove (dir, true);
zdir_destroy (&dir);
}
zsys_file_delete (filepath);
zsys_dir_delete (basedirpath);
// Create temporary directory for test files
zsys_dir_create (basedirpath);
// Load certificate store from disk; it will be empty
zcertstore_t *certstore = zcertstore_new (basedirpath);
assert (certstore);
// Create a single new certificate and save to disk
zcert_t *cert = zcert_new ();
assert (cert);
char *client_key = strdup (zcert_public_txt (cert));
assert (client_key);
zcert_set_meta (cert, "name", "John Doe");
zcert_save (cert, filepath);
zcert_destroy (&cert);
// Check that certificate store refreshes as expected
cert = zcertstore_lookup (certstore, client_key);
assert (cert);
assert (streq (zcert_meta (cert, "name"), "John Doe"));
#ifdef CZMQ_BUILD_DRAFT_API
// DRAFT-API: Security
// Iterate through certs
zlistx_t *certs = zcertstore_certs(certstore);
cert = (zcert_t *) zlistx_first(certs);
int cert_count = 0;
while (cert) {
assert (streq (zcert_meta (cert, "name"), "John Doe"));
cert = (zcert_t *) zlistx_next(certs);
cert_count++;
}
assert(cert_count==1);
zlistx_destroy(&certs);
#endif
// Test custom loader
test_loader_state *state = (test_loader_state *) zmalloc (sizeof (test_loader_state));
state->index = 0;
zcertstore_set_loader (certstore, s_test_loader, s_test_destructor, (void *)state);
#if (ZMQ_VERSION_MAJOR >= 4)
cert = zcertstore_lookup (certstore, client_key);
assert (cert == NULL);
cert = zcertstore_lookup (certstore, "abcdefghijklmnopqrstuvwxyzabcdefghijklmn");
assert (cert);
#endif
freen (client_key);
if (verbose)
zcertstore_print (certstore);
zcertstore_destroy (&certstore);
// Delete all test files
dir = zdir_new (basedirpath, NULL);
assert (dir);
zdir_remove (dir, true);
zdir_destroy (&dir);
zstr_free (&basedirpath);
zstr_free (&filepath);
#if defined (__WINDOWS__)
zsys_shutdown();
#endif
// @end
printf ("OK\n");
}
bool
GlobalServer_start (
GlobalServer *self
) {
#ifdef WIN32
SetConsoleTitle ("GlobalServer");
#endif // WIN32
special ("======================");
special ("=== Global server ====");
special ("======================");
GlobalServerStartupInfo *info = &self->info;
zpoller_t *poller;
bool isRunning = true;
ServerStartupInfo serverInfo;
// ===================================
// Initialize CLI connection
// ===================================
// CLI should communicates through BSD sockets
zsock_set_router_raw (self->cliConnection, true);
if (zsock_bind (self->cliConnection, GLOBAL_SERVER_CLI_ENDPOINT, info->ip, info->cliPort) == -1) {
error ("Failed to bind CLI port.");
return false;
}
info ("CLI connection binded on port %s.", zsys_sprintf (GLOBAL_SERVER_CLI_ENDPOINT, info->ip, info->cliPort));
// ===================================
// Initialize Zones connection
// ===================================
if ((info->zonesPort = zsock_bind (self->zonesConnection, GLOBAL_SERVER_ZONES_ENDPOINT, info->ip)) == -1) {
error ("Failed to bind zones port.");
return false;
}
info ("Zones connection binded on port %s.", zsys_sprintf (GLOBAL_SERVER_ZONES_ENDPOINT, info->ip, info->zonesPort));
// ===================================
// Initialize 1 Barrack Server
// ===================================
if (!(ServerFactory_initServerInfo (&serverInfo,
SERVER_TYPE_BARRACK,
BARRACK_SERVER_ROUTER_ID,
info->barrackServerIp,
info->barrackServerPortCount, info->barrackServerPort,
info->zoneWorkersCount,
info->ip, info->cliPort,
info->sqlInfo.hostname, info->sqlInfo.login, info->sqlInfo.password, info->sqlInfo.database,
info->redisInfo.hostname, info->redisInfo.port)
)) {
error ("[Barrack] Cannot create a new ServerInfo.");
return false;
}
if (!(Server_createProcess (&serverInfo, ZONE_SERVER_EXECUTABLE_NAME))) {
error ("[Barrack] Can't launch a new Server process.");
return false;
}
// ===================================
// Initialize N Social Server
// ===================================
for (uint16_t routerId = 0; routerId < info->socialServersCount; routerId++) {
ServerFactory_initServerInfo (&serverInfo,
SERVER_TYPE_SOCIAL,
SOCIAL_SERVER_ROUTER_ID - routerId,
info->socialServersIp[routerId],
1, &info->socialServersPorts[routerId], // Only 1 port for each social server
info->socialWorkersCount,
info->ip, info->cliPort,
info->sqlInfo.hostname, info->sqlInfo.login, info->sqlInfo.password, info->sqlInfo.database,
info->redisInfo.hostname, info->redisInfo.port
);
if (!(Server_createProcess (&serverInfo, ZONE_SERVER_EXECUTABLE_NAME))) {
error ("[routerId=%d] Can't launch a new Server process.", routerId);
return false;
}
}
// ===================================
// Initialize N Zone Server
// ===================================
for (uint16_t routerId = 0; routerId < info->zoneServersCount; routerId++) {
ServerFactory_initServerInfo (&serverInfo,
SERVER_TYPE_ZONE,
routerId,
info->zoneServersIp[routerId],
1, &info->zoneServersPorts[routerId], // Only 1 port for each Zone server
info->zoneWorkersCount,
info->ip, info->cliPort,
info->sqlInfo.hostname, info->sqlInfo.login, info->sqlInfo.password, info->sqlInfo.database,
info->redisInfo.hostname, info->redisInfo.port
);
if (!(Server_createProcess (&serverInfo, ZONE_SERVER_EXECUTABLE_NAME))) {
error ("[routerId=%d] Can't launch a new Server process.", routerId);
return false;
}
}
// Define a poller with the zones and the CLI sockets
if (!(poller = zpoller_new (self->cliConnection, self->zonesConnection, NULL))) {
error ("Global server cannot create a poller.");
return false;
}
// Listens to requests
info ("GlobalServer is ready and running.");
while (isRunning) {
zsock_t *actor = zpoller_wait (poller, -1);
typedef int (*GlobalServerRequestHandler) (GlobalServer *self, zsock_t *actor);
GlobalServerRequestHandler handler;
// Get the correct handler based on the actor
if (actor == self->zonesConnection) {
handler = GlobalServer_handleZonesRequest;
} else if (actor == self->cliConnection) {
handler = GlobalServer_handleCliRequest;
}
else {
warning ("An unknown actor talked to the Global Server. Maybe SIGINT signal ?");
break;
}
switch (handler (self, actor)) {
case -1: // ERROR
error ("Global Server encountered an error when handling a request.");
case -2: // Connection stopped
isRunning = false;
break;
case 0: // OK
break;
}
}
return true;
}
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;
}
void
zfile_test (bool verbose)
{
printf (" * zfile: ");
// @selftest
const char *SELFTEST_DIR_RW = "src/selftest-rw";
const char *testbasedir = "this";
const char *testsubdir = "is/a/test";
const char *testfile = "bilbo";
const char *testlink = "bilbo.ln";
char *basedirpath = NULL; // subdir in a test, under SELFTEST_DIR_RW
char *dirpath = NULL; // subdir in a test, under basedirpath
char *filepath = NULL; // pathname to testfile in a test, in dirpath
char *linkpath = NULL; // pathname to testlink in a test, in dirpath
basedirpath = zsys_sprintf ("%s/%s", SELFTEST_DIR_RW, testbasedir);
assert (basedirpath);
dirpath = zsys_sprintf ("%s/%s", basedirpath, testsubdir);
assert (dirpath);
filepath = zsys_sprintf ("%s/%s", dirpath, testfile);
assert (filepath);
linkpath = zsys_sprintf ("%s/%s", dirpath, testlink);
assert (linkpath);
// This subtest is specifically for NULL as current directory, so
// no SELFTEST_DIR_RW here; testfile should have no slashes inside.
// Normally tests clean up in zfile_destroy(), but if a selftest run
// dies e.g. on assert(), workspace remains dirty. Better clean it up.
if (zfile_exists (testfile) ) {
if (verbose)
zsys_debug ("zfile_test() has to remove ./%s that should not have been here", testfile);
zfile_delete (testfile);
}
zfile_t *file = zfile_new (NULL, testfile);
assert (file);
assert (streq (zfile_filename (file, "."), testfile));
assert (zfile_is_readable (file) == false);
zfile_destroy (&file);
// Create a test file in some random subdirectory
if (verbose)
zsys_debug ("zfile_test() at timestamp %" PRIi64 ": "
"Creating new zfile %s",
zclock_time(), filepath );
if (zfile_exists (filepath) ) {
if (verbose)
zsys_debug ("zfile_test() has to remove %s that should not have been here", filepath);
zfile_delete (filepath);
}
file = zfile_new (dirpath, testfile);
assert (file);
int rc = zfile_output (file);
assert (rc == 0);
zchunk_t *chunk = zchunk_new (NULL, 100);
assert (chunk);
zchunk_fill (chunk, 0, 100);
// Write 100 bytes at position 1,000,000 in the file
if (verbose)
zsys_debug ("zfile_test() at timestamp %" PRIi64 ": "
"Writing 100 bytes at position 1,000,000 in the file",
zclock_time() );
rc = zfile_write (file, chunk, 1000000);
if (verbose)
zsys_debug ("zfile_test() at timestamp %" PRIi64 ": "
"Wrote 100 bytes at position 1,000,000 in the file, result code %d",
zclock_time(), rc );
assert (rc == 0);
zchunk_destroy (&chunk);
zfile_close (file);
assert (zfile_is_readable (file));
assert (zfile_cursize (file) == 1000100);
if (verbose)
zsys_debug ("zfile_test() at timestamp %" PRIi64 ": "
"Testing if file is NOT stable (is younger than 1 sec)",
zclock_time() );
assert (!zfile_is_stable (file));
if (verbose)
zsys_debug ("zfile_test() at timestamp %" PRIi64 ": "
"Passed the lag-dependent tests",
zclock_time() );
assert (zfile_digest (file));
// Now truncate file from outside
int handle = open (filepath, O_WRONLY | O_TRUNC | O_BINARY, 0);
assert (handle >= 0);
rc = write (handle, "Hello, World\n", 13);
assert (rc == 13);
close (handle);
assert (zfile_has_changed (file));
#ifdef CZMQ_BUILD_DRAFT_API
zclock_sleep ((int)zsys_file_stable_age_msec() + 50);
#else
zclock_sleep (5050);
#endif
assert (zfile_has_changed (file));
assert (!zfile_is_stable (file));
zfile_restat (file);
assert (zfile_is_stable (file));
assert (streq (zfile_digest (file), "4AB299C8AD6ED14F31923DD94F8B5F5CB89DFB54"));
// Check we can read from file
rc = zfile_input (file);
assert (rc == 0);
chunk = zfile_read (file, 1000100, 0);
assert (chunk);
assert (zchunk_size (chunk) == 13);
zchunk_destroy (&chunk);
zfile_close (file);
// Check we can read lines from file
rc = zfile_input (file);
assert (rc == 0);
const char *line = zfile_readln (file);
assert (streq (line, "Hello, World"));
line = zfile_readln (file);
assert (line == NULL);
zfile_close (file);
// Try some fun with symbolic links
zfile_t *link = zfile_new (dirpath, testlink);
assert (link);
rc = zfile_output (link);
assert (rc == 0);
fprintf (zfile_handle (link), "%s\n", filepath);
zfile_destroy (&link);
link = zfile_new (dirpath, testlink);
assert (link);
rc = zfile_input (link);
assert (rc == 0);
chunk = zfile_read (link, 1000100, 0);
assert (chunk);
assert (zchunk_size (chunk) == 13);
zchunk_destroy (&chunk);
zfile_destroy (&link);
// Remove file and directory
zdir_t *dir = zdir_new (basedirpath, NULL);
assert (dir);
assert (zdir_cursize (dir) == 26);
zdir_remove (dir, true);
assert (zdir_cursize (dir) == 0);
zdir_destroy (&dir);
// Check we can no longer read from file
assert (zfile_is_readable (file));
zfile_restat (file);
assert (!zfile_is_readable (file));
rc = zfile_input (file);
assert (rc == -1);
zfile_destroy (&file);
// This set of tests is done, free the strings for reuse
zstr_free (&basedirpath);
zstr_free (&dirpath);
zstr_free (&filepath);
zstr_free (&linkpath);
const char *eof_checkfile = "eof_checkfile";
filepath = zsys_sprintf ("%s/%s", SELFTEST_DIR_RW, eof_checkfile);
assert (filepath);
if (zfile_exists (filepath) ) {
if (verbose)
zsys_debug ("zfile_test() has to remove %s that should not have been here", filepath);
zfile_delete (filepath);
}
zstr_free (&filepath);
file = zfile_new (SELFTEST_DIR_RW, eof_checkfile);
assert (file);
// 1. Write something first
rc = zfile_output (file);
assert (rc == 0);
chunk = zchunk_new ("123456789", 9);
assert (chunk);
rc = zfile_write (file, chunk, 0);
assert (rc == 0);
zchunk_destroy (&chunk);
zfile_close (file);
assert (zfile_cursize (file) == 9);
// 2. Read the written something
rc = zfile_input (file);
assert (rc != -1);
// try to read more bytes than there is in the file
chunk = zfile_read (file, 1000, 0);
assert (zfile_eof(file));
assert (zchunk_streq (chunk, "123456789"));
zchunk_destroy (&chunk);
// reading is ok
chunk = zfile_read (file, 5, 0);
assert (!zfile_eof(file));
assert (zchunk_streq (chunk, "12345"));
zchunk_destroy (&chunk);
// read from non zero offset until the end
chunk = zfile_read (file, 5, 5);
assert (zfile_eof(file));
assert (zchunk_streq (chunk, "6789"));
zchunk_destroy (&chunk);
zfile_remove (file);
zfile_close (file);
zfile_destroy (&file);
#ifdef CZMQ_BUILD_DRAFT_API
zfile_t *tempfile = zfile_tmp ();
assert (tempfile);
assert (zfile_filename (tempfile, NULL));
assert (zsys_file_exists (zfile_filename (tempfile, NULL)));
zchunk_t *tchunk = zchunk_new ("HELLO", 6);
assert (zfile_write (tempfile, tchunk, 0) == 0);
zchunk_destroy (&tchunk);
char *filename = strdup (zfile_filename (tempfile, NULL));
zfile_destroy (&tempfile);
assert (!zsys_file_exists (filename));
zstr_free (&filename);
#endif // CZMQ_BUILD_DRAFT_API
#if defined (__WINDOWS__)
zsys_shutdown();
#endif
// @end
printf ("OK\n");
}
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");
}
int main (int argc, char **argv)
{
if (argc <= 1) {
info("Please launch global_server instead of zone_server. (argc=%d)", argc);
exit (0);
}
ZoneServer *zoneServer = NULL;
BarrackServer *barrackServer = NULL;
SocialServer *socialServer = NULL;
// === Crash handler ===
#ifdef WIN32
SetUnhandledExceptionFilter (crashHandler);
#else
struct sigaction sa = {};
sa.sa_flags = SA_SIGINFO;
sigemptyset(&sa.sa_mask);
sa.sa_sigaction = crashHandler;
sigaction(SIGSEGV, &sa, NULL);
sigaction(SIGABRT, &sa, NULL);
#endif
// === Read the command line arguments ===
RouterId_t routerId = atoi(*++argv);
char *routerIp = *++argv;
int port = atoi(*++argv);
uint16_t workersCount = atoi(*++argv);
char *globalServerIp = *++argv;
int globalServerPort = atoi(*++argv);
char *sqlHostname = *++argv;
char *sqlUsername = *++argv;
char *sqlPassword = *++argv;
char *sqlDatabase = *++argv;
char *redisHostname = *++argv;
int redisPort = atoi(*++argv);
ServerType serverType = atoi(*++argv);
char *output = *++argv;
// Set a custom output
dbgSetCustomOutput(output);
// For Windows, change the console title
#ifdef WIN32
switch (serverType) {
case SERVER_TYPE_BARRACK:
SetConsoleTitle(zsys_sprintf("Barrack (%d)", routerId));
break;
case SERVER_TYPE_ZONE:
SetConsoleTitle(zsys_sprintf("Zone (%d)", routerId));
break;
case SERVER_TYPE_SOCIAL:
SetConsoleTitle(zsys_sprintf("Social (%d)", routerId));
break;
default :
SetConsoleTitle(zsys_sprintf("UNKNOWN (%d)", routerId));
break;
}
#endif
// === Build the Event Server ===
EventServer *eventServer;
EventServerInfo eventServerInfo;
if (!(eventServerInfoInit(&eventServerInfo, routerId, workersCount, redisHostname, redisPort))) {
error("Cannot initialize the event server.");
return -1;
}
if (!(eventServer = eventServerNew(&eventServerInfo, serverType))) {
error("Cannot create the event server.");
return -1;
}
if ((zthread_new((zthread_detached_fn *) eventServerStart, eventServer)) != 0) {
error("Cannot start the event server.");
return -1;
}
// Specific server stuff
DisconnectEventHandler disconnectHandler;
switch (serverType) {
case SERVER_TYPE_BARRACK:
disconnectHandler = barrackEventServerOnDisconnect;
break;
case SERVER_TYPE_ZONE:
disconnectHandler = zoneEventServerOnDisconnect;
break;
case SERVER_TYPE_SOCIAL:
disconnectHandler = socialEventServerOnDisconnect;
break;
default :
error("Unknown server type.");
return 0;
break;
}
// === Build the Server ===
Server *server;
if (!(server = serverFactoryCreateServer(
serverType,
routerId,
routerIp, port,
workersCount,
output,
globalServerIp, globalServerPort,
sqlHostname, sqlUsername, sqlPassword, sqlDatabase,
redisHostname, redisPort, disconnectHandler
))) {
error("Cannot create a Server.");
return -1;
}
// Initialize the Server
switch (serverType)
{
case SERVER_TYPE_BARRACK:
// Initialize the Barrack Server
if ((barrackServer = barrackServerNew(server))) {
// Start the Barrack Server
if (!barrackServerStart(barrackServer)) {
error("Cannot start the BarrackServer properly.");
}
// Unload the Barrack Server properly
barrackServerDestroy(&barrackServer);
}
else {
error("Cannot initialize the BarrackServer properly.");
}
break;
case SERVER_TYPE_ZONE:
// Initialize the Zone Server
if ((zoneServer = zoneServerNew(server))) {
// Start the Zone Server
if (!zoneServerStart(zoneServer)) {
error("Cannot start the Zone Server properly.");
}
// Unload the Zone Server properly
zoneServerDestroy(&zoneServer);
}
else {
error("Cannot initialize the Zone Server properly.");
}
break;
case SERVER_TYPE_SOCIAL:
// Initialize the Social Server
if ((socialServer = socialServerNew(server))) {
// Start the Social Server
if (!socialServerStart(socialServer)) {
error("Cannot start the Social Server properly.");
}
// Unload the Social Server properly
socialServerDestroy(&socialServer);
}
else {
error("Cannot initialize the Social Server properly.");
}
break;
default :
error("Cannot start an unknown serverType.");
break;
}
// Shutdown the CZMQ layer properly
zsys_shutdown();
// Close the custom debug file if necessary
dbgClose();
pause();
return 0;
}
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;
}
int
zsock_bind (zsock_t *self, const char *format, ...)
{
assert (self);
assert (zsock_is (self));
// Expand format to get full endpoint
va_list argptr;
va_start (argptr, format);
char *endpoint = zsys_vprintf (format, argptr);
va_end (argptr);
int rc;
// If tcp:// endpoint, parse to get or make port number
zrex_t *rex = zrex_new (NULL);
if (zrex_eq (rex, endpoint, "^tcp://.*:(\\d+)$")) {
assert (zrex_hits (rex) == 2);
if (zmq_bind (self->handle, endpoint) == 0)
rc = atoi (zrex_hit (rex, 1));
else
rc = -1;
}
else
if (zrex_eq (rex, endpoint, "^(tcp://.*):([*!])(\\[(\\d+)?-(\\d+)?\\])?$")) {
assert (zrex_hits (rex) == 6);
const char *hostname, *opcode, *group, *first_str, *last_str;
zrex_fetch (rex, &hostname, &opcode, &group, &first_str, &last_str, NULL);
int first = *first_str? atoi (first_str): DYNAMIC_FIRST;
int last = *last_str? atoi (last_str): DYNAMIC_LAST;
// This is how many times we'll try before giving up
int attempts = last - first + 1;
// If operator is '*', take first available port.
// If operator is '!', take a random leap into our port space; we'll
// still scan sequentially to make sure we find a free slot rapidly.
int port = first;
if (streq (opcode, "!"))
port += randof (attempts);
rc = -1; // Assume we don't succeed
while (rc == -1 && attempts--) {
free (endpoint);
endpoint = zsys_sprintf ("%s:%d", hostname, port);
if (zmq_bind (self->handle, endpoint) == 0)
rc = port;
if (++port > last)
port = first;
}
}
else
rc = zmq_bind (self->handle, endpoint);
// Store successful endpoint for later reference
if (rc >= 0) {
free (self->endpoint);
self->endpoint = endpoint;
}
else
free (endpoint);
zrex_destroy (&rex);
return rc;
}
