static zyre_peer_t *
zyre_node_require_peer (zyre_node_t *self, zuuid_t *uuid, const char *endpoint)
{
assert (self);
assert (endpoint);
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, zuuid_str (uuid));
if (!peer) {
// Purge any previous peer on same endpoint
void *item;
for (item = zhash_first (self->peers); item != NULL;
item = zhash_next (self->peers))
zyre_node_purge_peer (zhash_cursor (self->peers), item, (char *) endpoint);
peer = zyre_peer_new (self->peers, uuid);
assert (peer);
zyre_peer_set_origin (peer, self->name);
zyre_peer_set_verbose (peer, self->verbose);
zyre_peer_connect (peer, self->uuid, endpoint, self->expired_timeout);
// Handshake discovery by sending HELLO as first message
zlist_t *groups = zlist_dup (self->own_groups);
zhash_t *headers = zhash_dup (self->headers);
zre_msg_t *msg = zre_msg_new (ZRE_MSG_HELLO);
zre_msg_set_endpoint (msg, self->endpoint);
zre_msg_set_groups (msg, &groups);
zre_msg_set_status (msg, self->status);
zre_msg_set_name (msg, self->name);
zre_msg_set_headers (msg, &headers);
zyre_peer_send (peer, &msg);
}
return peer;
}
static int
zyre_node_ping_peer (const char *key, void *item, void *argument)
{
zyre_peer_t *peer = (zyre_peer_t *) item;
zyre_node_t *self = (zyre_node_t *) argument;
if (zclock_mono () >= zyre_peer_expired_at (peer)) {
if (self->verbose)
zsys_info ("(%s) peer expired name=%s endpoint=%s",
self->name, zyre_peer_name (peer), zyre_peer_endpoint (peer));
zyre_node_remove_peer (self, peer);
}
else
if (zclock_mono () >= zyre_peer_evasive_at (peer)) {
// If peer is being evasive, force a TCP ping.
// TODO: do this only once for a peer in this state;
// it would be nicer to use a proper state machine
// for peer management.
if (self->verbose)
zsys_info ("(%s) peer seems dead/slow name=%s endpoint=%s",
self->name, zyre_peer_name (peer), zyre_peer_endpoint (peer));
zre_msg_t *msg = zre_msg_new (ZRE_MSG_PING);
zyre_peer_send (peer, &msg);
// Inform the calling application this peer is being evasive
zstr_sendm (self->outbox, "EVASIVE");
zstr_sendm (self->outbox, zyre_peer_identity (peer));
zstr_send (self->outbox, zyre_peer_name (peer));
}
return 0;
}
static int
agent_ping_peer (const char *key, void *item, void *argument)
{
agent_t *self = (agent_t *) argument;
zre_peer_t *peer = (zre_peer_t *) item;
char *identity = zre_peer_identity (peer);
if (zclock_time () >= zre_peer_expired_at (peer)) {
zre_log_info (self->log, ZRE_LOG_MSG_EVENT_EXIT,
zre_peer_endpoint (peer),
zre_peer_endpoint (peer));
// If peer has really vanished, expire it
zstr_sendm (self->pipe, "EXIT");
zstr_send (self->pipe, identity);
zhash_foreach (self->peer_groups, agent_peer_delete, peer);
zhash_delete (self->peers, identity);
}
else
if (zclock_time () >= zre_peer_evasive_at (peer)) {
// If peer is being evasive, force a TCP ping.
// TODO: do this only once for a peer in this state;
// it would be nicer to use a proper state machine
// for peer management.
zre_msg_t *msg = zre_msg_new (ZRE_MSG_PING);
zre_peer_send (peer, &msg);
}
return 0;
}
void
zyre_peer_test (bool verbose)
{
printf (" * zyre_peer: ");
zsock_t *mailbox = zsock_new_dealer ("@tcp://127.0.0.1:5551");
zhash_t *peers = zhash_new ();
zuuid_t *you = zuuid_new ();
zuuid_t *me = zuuid_new ();
zyre_peer_t *peer = zyre_peer_new (peers, you);
assert (!zyre_peer_connected (peer));
zyre_peer_connect (peer, me, "tcp://127.0.0.1:5551");
assert (zyre_peer_connected (peer));
zyre_peer_set_name (peer, "peer");
assert (streq (zyre_peer_name (peer), "peer"));
zre_msg_t *msg = zre_msg_new (ZRE_MSG_HELLO);
zre_msg_set_endpoint (msg, "tcp://127.0.0.1:5552");
int rc = zyre_peer_send (peer, &msg);
assert (rc == 0);
msg = zre_msg_recv (mailbox);
assert (msg);
if (verbose)
zre_msg_print (msg);
zre_msg_destroy (&msg);
// Destroying container destroys all peers it contains
zhash_destroy (&peers);
zuuid_destroy (&me);
zuuid_destroy (&you);
zsock_destroy (&mailbox);
printf ("OK\n");
}
static zre_peer_t *
s_require_peer (agent_t *self, char *identity, char *address, uint16_t port)
{
zre_peer_t *peer = (zre_peer_t *) zhash_lookup (self->peers, identity);
if (!peer) {
// Purge any previous peer on same endpoint
char endpoint [100];
snprintf (endpoint, 100, "%s:%hu", address, port);
zhash_foreach (self->peers, agent_peer_purge, endpoint);
peer = zre_peer_new (identity, self->peers, self->ctx);
zre_peer_connect (peer, self->identity, endpoint);
// Handshake discovery by sending HELLO as first message
zre_msg_t *msg = zre_msg_new (ZRE_MSG_HELLO);
zre_msg_ipaddress_set (msg, zre_udp_host (self->udp));
zre_msg_mailbox_set (msg, self->port);
zre_msg_groups_set (msg, zhash_keys (self->own_groups));
zre_msg_status_set (msg, self->status);
zre_msg_headers_set (msg, zhash_dup (self->headers));
zre_peer_send (peer, &msg);
zre_log_info (self->log, ZRE_LOG_MSG_EVENT_ENTER,
zre_peer_endpoint (peer), endpoint);
// Now tell the caller about the peer
zstr_sendm (self->pipe, "ENTER");
zstr_send (self->pipe, identity);
}
return peer;
}
static zyre_peer_t *
zyre_node_require_peer (zyre_node_t *self, zuuid_t *uuid, char *address, uint16_t port)
{
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, zuuid_str (uuid));
if (!peer) {
// Purge any previous peer on same endpoint
char endpoint [100];
snprintf (endpoint, 100, "tcp://%s:%hu", address, port);
zhash_foreach (self->peers, zyre_node_purge_peer, endpoint);
peer = zyre_peer_new (self->ctx, self->peers, uuid);
zyre_peer_connect (peer, self->uuid, endpoint);
// Handshake discovery by sending HELLO as first message
zre_msg_t *msg = zre_msg_new (ZRE_MSG_HELLO);
zre_msg_set_ipaddress (msg, self->host);
zre_msg_set_mailbox (msg, self->port);
zre_msg_set_groups (msg, zhash_keys (self->own_groups));
zre_msg_set_status (msg, self->status);
zre_msg_set_headers (msg, zhash_dup (self->headers));
zyre_peer_send (peer, &msg);
// Send new peer event to logger, if any
zyre_log_info (self->log, ZRE_LOG_MSG_EVENT_ENTER,
zyre_peer_endpoint (peer), endpoint);
}
return peer;
}
int
zre_msg_send_ping_ok (
void *output,
uint16_t sequence)
{
zre_msg_t *self = zre_msg_new (ZRE_MSG_PING_OK);
zre_msg_set_sequence (self, sequence);
return zre_msg_send (&self, output);
}
int
zre_msg_send_whisper (
void *output,
uint16_t sequence,
zframe_t *content)
{
zre_msg_t *self = zre_msg_new (ZRE_MSG_WHISPER);
zre_msg_set_sequence (self, sequence);
zre_msg_set_content (self, zframe_dup (content));
return zre_msg_send (&self, output);
}
zre_msg_t *
zre_msg_dup (zre_msg_t *self)
{
if (!self)
return NULL;
zre_msg_t *copy = zre_msg_new (self->id);
if (self->routing_id)
copy->routing_id = zframe_dup (self->routing_id);
switch (self->id) {
case ZRE_MSG_HELLO:
copy->sequence = self->sequence;
copy->ipaddress = self->ipaddress? strdup (self->ipaddress): NULL;
copy->mailbox = self->mailbox;
copy->groups = self->groups? zlist_dup (self->groups): NULL;
copy->status = self->status;
copy->headers = self->headers? zhash_dup (self->headers): NULL;
break;
case ZRE_MSG_WHISPER:
copy->sequence = self->sequence;
copy->content = self->content? zmsg_dup (self->content): NULL;
break;
case ZRE_MSG_SHOUT:
copy->sequence = self->sequence;
copy->group = self->group? strdup (self->group): NULL;
copy->content = self->content? zmsg_dup (self->content): NULL;
break;
case ZRE_MSG_JOIN:
copy->sequence = self->sequence;
copy->group = self->group? strdup (self->group): NULL;
copy->status = self->status;
break;
case ZRE_MSG_LEAVE:
copy->sequence = self->sequence;
copy->group = self->group? strdup (self->group): NULL;
copy->status = self->status;
break;
case ZRE_MSG_PING:
copy->sequence = self->sequence;
break;
case ZRE_MSG_PING_OK:
copy->sequence = self->sequence;
break;
}
return copy;
}
int
zre_msg_send_join (
void *output,
uint16_t sequence,
char *group,
byte status)
{
zre_msg_t *self = zre_msg_new (ZRE_MSG_JOIN);
zre_msg_set_sequence (self, sequence);
zre_msg_set_group (self, group);
zre_msg_set_status (self, status);
return zre_msg_send (&self, output);
}
int
zre_msg_send_shout (
void *output,
uint16_t sequence,
char *group,
zframe_t *content)
{
zre_msg_t *self = zre_msg_new (ZRE_MSG_SHOUT);
zre_msg_set_sequence (self, sequence);
zre_msg_set_group (self, group);
zre_msg_set_content (self, zframe_dup (content));
return zre_msg_send (&self, output);
}
int
zre_msg_send_leave (
void *output,
uint16_t sequence,
const char *group,
byte status)
{
zre_msg_t *self = zre_msg_new (ZRE_MSG_LEAVE);
zre_msg_set_sequence (self, sequence);
zre_msg_set_group (self, group);
zre_msg_set_status (self, status);
return zre_msg_send (&self, output);
}
static int
zyre_node_ping_peer (const char *key, void *item, void *argument)
{
zyre_peer_t *peer = (zyre_peer_t *) item;
zyre_node_t *self = (zyre_node_t *) argument;
if (zclock_time () >= zyre_peer_expired_at (peer))
zyre_node_remove_peer (self, peer);
else
if (zclock_time () >= zyre_peer_evasive_at (peer)) {
// If peer is being evasive, force a TCP ping.
// TODO: do this only once for a peer in this state;
// it would be nicer to use a proper state machine
// for peer management.
zre_msg_t *msg = zre_msg_new (ZRE_MSG_PING);
zyre_peer_send (peer, &msg);
}
return 0;
}
int
zre_msg_send_hello (
void *output,
uint16_t sequence,
char *ipaddress,
uint16_t mailbox,
zlist_t *groups,
byte status,
zhash_t *headers)
{
zre_msg_t *self = zre_msg_new (ZRE_MSG_HELLO);
zre_msg_set_sequence (self, sequence);
zre_msg_set_ipaddress (self, ipaddress);
zre_msg_set_mailbox (self, mailbox);
zre_msg_set_groups (self, zlist_dup (groups));
zre_msg_set_status (self, status);
zre_msg_set_headers (self, zhash_dup (headers));
return zre_msg_send (&self, output);
}
void
zyre_group_test (bool verbose)
{
printf (" * zyre_group: ");
zsock_t *mailbox = zsock_new (ZMQ_DEALER);
zsock_bind (mailbox, "tcp://127.0.0.1:5552");
zhash_t *groups = zhash_new ();
zyre_group_t *group = zyre_group_new ("tests", groups);
zhash_t *peers = zhash_new ();
zuuid_t *you = zuuid_new ();
zuuid_t *me = zuuid_new ();
zyre_peer_t *peer = zyre_peer_new (peers, you);
assert (!zyre_peer_connected (peer));
zyre_peer_connect (peer, me, "tcp://127.0.0.1:5552");
assert (zyre_peer_connected (peer));
zyre_group_join (group, peer);
zre_msg_t *msg = zre_msg_new (ZRE_MSG_HELLO);
zre_msg_set_endpoint (msg, "tcp://127.0.0.1:5552");
zyre_group_send (group, &msg);
msg = zre_msg_recv (mailbox);
assert (msg);
if (verbose)
zre_msg_print (msg);
zre_msg_destroy (&msg);
zuuid_destroy (&me);
zuuid_destroy (&you);
zhash_destroy (&peers);
zhash_destroy (&groups);
zsock_destroy (&mailbox);
printf ("OK\n");
}
static int
zyre_node_recv_peer (zyre_node_t *self)
{
// Router socket tells us the identity of this peer
zre_msg_t *msg = zre_msg_recv (self->inbox);
if (msg == NULL)
return 0; // Interrupted
// First frame is sender identity, holding binary UUID
zuuid_t *uuid = zuuid_new ();
zuuid_set (uuid, zframe_data (zre_msg_address (msg)));
// On HELLO we may create the peer if it's unknown
// On other commands the peer must already exist
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, zuuid_str (uuid));
if (zre_msg_id (msg) == ZRE_MSG_HELLO) {
peer = zyre_node_require_peer (self, uuid, zre_msg_ipaddress (msg), zre_msg_mailbox (msg));
assert (peer);
zyre_peer_set_ready (peer, true);
}
// Ignore command if peer isn't ready
if (peer == NULL || !zyre_peer_ready (peer)) {
zre_msg_destroy (&msg);
zuuid_destroy (&uuid);
return 0;
}
if (!zyre_peer_check_message (peer, msg)) {
zclock_log ("W: [%s] lost messages from %s", zuuid_str (self->uuid), zuuid_str (uuid));
assert (false);
}
// Now process each command
if (zre_msg_id (msg) == ZRE_MSG_HELLO) {
// Tell the caller about the peer
zstr_sendm (self->pipe, "ENTER");
zstr_sendm (self->pipe, zuuid_str (uuid));
zframe_t *headers = zhash_pack (zre_msg_headers (msg));
zframe_send (&headers, self->pipe, 0);
// Join peer to listed groups
char *name = zre_msg_groups_first (msg);
while (name) {
zyre_node_join_peer_group (self, peer, name);
name = zre_msg_groups_next (msg);
}
// Hello command holds latest status of peer
zyre_peer_set_status (peer, zre_msg_status (msg));
// Store peer headers for future reference
zyre_peer_set_headers (peer, zre_msg_headers (msg));
// If peer is a ZRE/LOG collector, connect to it
char *collector = zre_msg_headers_string (msg, "X-ZRELOG", NULL);
if (collector)
zyre_log_connect (self->log, collector);
}
else
if (zre_msg_id (msg) == ZRE_MSG_WHISPER) {
// Pass up to caller API as WHISPER event
zstr_sendm (self->pipe, "WHISPER");
zstr_sendm (self->pipe, zuuid_str (uuid));
zmsg_t *content = zmsg_dup (zre_msg_content (msg));
zmsg_send (&content, self->pipe);
}
else
if (zre_msg_id (msg) == ZRE_MSG_SHOUT) {
// Pass up to caller as SHOUT event
zstr_sendm (self->pipe, "SHOUT");
zstr_sendm (self->pipe, zuuid_str (uuid));
zstr_sendm (self->pipe, zre_msg_group (msg));
zmsg_t *content = zmsg_dup (zre_msg_content (msg));
zmsg_send (&content, self->pipe);
}
else
if (zre_msg_id (msg) == ZRE_MSG_PING) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_PING_OK);
zyre_peer_send (peer, &msg);
}
else
if (zre_msg_id (msg) == ZRE_MSG_JOIN) {
zyre_node_join_peer_group (self, peer, zre_msg_group (msg));
assert (zre_msg_status (msg) == zyre_peer_status (peer));
}
else
if (zre_msg_id (msg) == ZRE_MSG_LEAVE) {
zyre_node_leave_peer_group (self, peer, zre_msg_group (msg));
assert (zre_msg_status (msg) == zyre_peer_status (peer));
}
zuuid_destroy (&uuid);
zre_msg_destroy (&msg);
// Activity from peer resets peer timers
zyre_peer_refresh (peer);
return 0;
}
zre_msg_t *
zre_msg_decode (zmsg_t **msg_p, int socket_type)
{
assert (msg_p);
zmsg_t *msg = *msg_p;
if (msg == NULL)
return NULL;
zre_msg_t *self = zre_msg_new (0);
// If message came from a router socket, first frame is routing_id
if (socket_type == ZMQ_ROUTER) {
self->routing_id = zmsg_pop (msg);
// If message was not valid, forget about it
if (!self->routing_id || !zmsg_next (msg)) {
zre_msg_destroy (&self);
return (NULL); // Malformed or empty
}
}
// Read and parse command in frame
zframe_t *frame = zmsg_pop (msg);
if (!frame)
goto empty; // Malformed or empty
// Get and check protocol signature
self->needle = zframe_data (frame);
self->ceiling = self->needle + zframe_size (frame);
uint16_t signature;
GET_NUMBER2 (signature);
if (signature != (0xAAA0 | 1))
goto empty; // Invalid signature
// Get message id and parse per message type
GET_NUMBER1 (self->id);
switch (self->id) {
case ZRE_MSG_HELLO:
GET_NUMBER2 (self->sequence);
GET_STRING (self->ipaddress);
GET_NUMBER2 (self->mailbox);
{
size_t list_size;
GET_NUMBER4 (list_size);
self->groups = zlist_new ();
zlist_autofree (self->groups);
while (list_size--) {
char *string;
GET_LONGSTR (string);
zlist_append (self->groups, string);
free (string);
}
}
GET_NUMBER1 (self->status);
{
size_t hash_size;
GET_NUMBER4 (hash_size);
self->headers = zhash_new ();
zhash_autofree (self->headers);
while (hash_size--) {
char *key, *value;
GET_STRING (key);
GET_LONGSTR (value);
zhash_insert (self->headers, key, value);
free (key);
free (value);
}
}
break;
case ZRE_MSG_WHISPER:
GET_NUMBER2 (self->sequence);
// Get zero or more remaining frames, leaving current
// frame untouched
self->content = zmsg_new ();
while (zmsg_size (msg))
zmsg_add (self->content, zmsg_pop (msg));
break;
case ZRE_MSG_SHOUT:
GET_NUMBER2 (self->sequence);
GET_STRING (self->group);
// Get zero or more remaining frames, leaving current
// frame untouched
self->content = zmsg_new ();
while (zmsg_size (msg))
zmsg_add (self->content, zmsg_pop (msg));
break;
case ZRE_MSG_JOIN:
GET_NUMBER2 (self->sequence);
GET_STRING (self->group);
GET_NUMBER1 (self->status);
break;
case ZRE_MSG_LEAVE:
GET_NUMBER2 (self->sequence);
GET_STRING (self->group);
GET_NUMBER1 (self->status);
break;
case ZRE_MSG_PING:
GET_NUMBER2 (self->sequence);
break;
case ZRE_MSG_PING_OK:
GET_NUMBER2 (self->sequence);
break;
default:
goto malformed;
}
// Successful return
zframe_destroy (&frame);
zmsg_destroy (msg_p);
return self;
// Error returns
malformed:
printf ("E: malformed message '%d'\n", self->id);
empty:
zframe_destroy (&frame);
zmsg_destroy (msg_p);
zre_msg_destroy (&self);
return (NULL);
}
static int
zyre_node_recv_api (zyre_node_t *self)
{
// Get the whole message off the pipe in one go
zmsg_t *request = zmsg_recv (self->pipe);
char *command = zmsg_popstr (request);
if (!command)
return -1; // Interrupted
if (streq (command, "SET")) {
char *name = zmsg_popstr (request);
char *value = zmsg_popstr (request);
zhash_update (self->headers, name, value);
zstr_free (&name);
zstr_free (&value);
}
else
if (streq (command, "START")) {
zyre_node_start (self);
zstr_send (self->pipe, "OK");
}
else
if (streq (command, "STOP")) {
zyre_node_stop (self);
zstr_send (self->pipe, "OK");
}
else
if (streq (command, "WHISPER")) {
// Get peer to send message to
char *identity = zmsg_popstr (request);
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, identity);
// Send frame on out to peer's mailbox, drop message
// if peer doesn't exist (may have been destroyed)
if (peer) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_WHISPER);
zre_msg_set_content (msg, request);
zyre_peer_send (peer, &msg);
request = NULL;
}
zstr_free (&identity);
}
else
if (streq (command, "SHOUT")) {
// Get group to send message to
char *name = zmsg_popstr (request);
zyre_group_t *group = (zyre_group_t *) zhash_lookup (self->peer_groups, name);
if (group) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_SHOUT);
zre_msg_set_group (msg, name);
zre_msg_set_content (msg, request);
zyre_group_send (group, &msg);
request = NULL;
}
zstr_free (&name);
}
else
if (streq (command, "JOIN")) {
char *name = zmsg_popstr (request);
zyre_group_t *group = (zyre_group_t *) zhash_lookup (self->own_groups, name);
if (!group) {
// Only send if we're not already in group
group = zyre_group_new (name, self->own_groups);
zre_msg_t *msg = zre_msg_new (ZRE_MSG_JOIN);
zre_msg_set_group (msg, name);
// Update status before sending command
zre_msg_set_status (msg, ++(self->status));
zhash_foreach (self->peers, zyre_node_send_peer, msg);
zre_msg_destroy (&msg);
zyre_log_info (self->log, ZRE_LOG_MSG_EVENT_JOIN, NULL, name);
}
zstr_free (&name);
}
else
if (streq (command, "LEAVE")) {
char *name = zmsg_popstr (request);
zyre_group_t *group = (zyre_group_t *) zhash_lookup (self->own_groups, name);
if (group) {
// Only send if we are actually in group
zre_msg_t *msg = zre_msg_new (ZRE_MSG_LEAVE);
zre_msg_set_group (msg, name);
// Update status before sending command
zre_msg_set_status (msg, ++(self->status));
zhash_foreach (self->peers, zyre_node_send_peer, msg);
zre_msg_destroy (&msg);
zhash_delete (self->own_groups, name);
zyre_log_info (self->log, ZRE_LOG_MSG_EVENT_LEAVE, NULL, name);
}
zstr_free (&name);
}
else
if (streq (command, "TERMINATE")) {
self->terminated = true;
zstr_send (self->pipe, "OK");
}
zstr_free (&command);
zmsg_destroy (&request);
return 0;
}
zre_msg_t *
zre_msg_recv (void *input)
{
assert (input);
zre_msg_t *self = zre_msg_new (0);
zframe_t *frame = NULL;
size_t string_size;
size_t list_size;
size_t hash_size;
// Read valid message frame from socket; we loop over any
// garbage data we might receive from badly-connected peers
while (true) {
// If we're reading from a ROUTER socket, get address
if (zsocket_type (input) == ZMQ_ROUTER) {
zframe_destroy (&self->address);
self->address = zframe_recv (input);
if (!self->address)
goto empty; // Interrupted
if (!zsocket_rcvmore (input))
goto malformed;
}
// Read and parse command in frame
frame = zframe_recv (input);
if (!frame)
goto empty; // Interrupted
// Get and check protocol signature
self->needle = zframe_data (frame);
self->ceiling = self->needle + zframe_size (frame);
uint16_t signature;
GET_NUMBER2 (signature);
if (signature == (0xAAA0 | 1))
break; // Valid signature
// Protocol assertion, drop message
while (zsocket_rcvmore (input)) {
zframe_destroy (&frame);
frame = zframe_recv (input);
}
zframe_destroy (&frame);
}
// Get message id and parse per message type
GET_NUMBER1 (self->id);
switch (self->id) {
case ZRE_MSG_HELLO:
GET_NUMBER2 (self->sequence);
free (self->ipaddress);
GET_STRING (self->ipaddress);
GET_NUMBER2 (self->mailbox);
GET_NUMBER1 (list_size);
self->groups = zlist_new ();
zlist_autofree (self->groups);
while (list_size--) {
char *string;
GET_STRING (string);
zlist_append (self->groups, string);
free (string);
}
GET_NUMBER1 (self->status);
GET_NUMBER1 (hash_size);
self->headers = zhash_new ();
zhash_autofree (self->headers);
while (hash_size--) {
char *string;
GET_STRING (string);
char *value = strchr (string, '=');
if (value)
*value++ = 0;
zhash_insert (self->headers, string, value);
free (string);
}
break;
case ZRE_MSG_WHISPER:
GET_NUMBER2 (self->sequence);
// Get next frame, leave current untouched
if (!zsocket_rcvmore (input))
goto malformed;
self->content = zframe_recv (input);
break;
case ZRE_MSG_SHOUT:
GET_NUMBER2 (self->sequence);
free (self->group);
GET_STRING (self->group);
// Get next frame, leave current untouched
if (!zsocket_rcvmore (input))
goto malformed;
self->content = zframe_recv (input);
break;
case ZRE_MSG_JOIN:
GET_NUMBER2 (self->sequence);
free (self->group);
GET_STRING (self->group);
GET_NUMBER1 (self->status);
break;
case ZRE_MSG_LEAVE:
GET_NUMBER2 (self->sequence);
free (self->group);
GET_STRING (self->group);
GET_NUMBER1 (self->status);
break;
case ZRE_MSG_PING:
GET_NUMBER2 (self->sequence);
break;
case ZRE_MSG_PING_OK:
GET_NUMBER2 (self->sequence);
break;
default:
goto malformed;
}
// Successful return
zframe_destroy (&frame);
return self;
// Error returns
malformed:
printf ("E: malformed message '%d'\n", self->id);
empty:
zframe_destroy (&frame);
zre_msg_destroy (&self);
return (NULL);
}
static int
agent_recv_from_peer (agent_t *self)
{
// Router socket tells us the identity of this peer
zre_msg_t *msg = zre_msg_recv (self->inbox);
if (msg == NULL)
return 0; // Interrupted
char *identity = zframe_strdup (zre_msg_address (msg));
// On HELLO we may create the peer if it's unknown
// On other commands the peer must already exist
zre_peer_t *peer = (zre_peer_t *) zhash_lookup (self->peers, identity);
if (zre_msg_id (msg) == ZRE_MSG_HELLO) {
peer = s_require_peer (
self, identity, zre_msg_ipaddress (msg), zre_msg_mailbox (msg));
assert (peer);
zre_peer_ready_set (peer, true);
}
// Ignore command if peer isn't ready
if (peer == NULL || !zre_peer_ready (peer)) {
free(identity);
zre_msg_destroy (&msg);
return 0;
}
if (!zre_peer_check_message (peer, msg)) {
zclock_log ("W: [%s] lost messages from %s", self->identity, identity);
assert (false);
}
// Now process each command
if (zre_msg_id (msg) == ZRE_MSG_HELLO) {
// Join peer to listed groups
char *name = zre_msg_groups_first (msg);
while (name) {
s_join_peer_group (self, peer, name);
name = zre_msg_groups_next (msg);
}
// Hello command holds latest status of peer
zre_peer_status_set (peer, zre_msg_status (msg));
// Store peer headers for future reference
zre_peer_headers_set (peer, zre_msg_headers (msg));
// If peer is a ZRE/LOG collector, connect to it
char *collector = zre_msg_headers_string (msg, "X-ZRELOG", NULL);
if (collector)
zre_log_connect (self->log, collector);
// If peer is a FileMQ publisher, connect to it
char *publisher = zre_msg_headers_string (msg, "X-FILEMQ", NULL);
if (publisher)
fmq_client_connect (self->fmq_client, publisher);
}
else
if (zre_msg_id (msg) == ZRE_MSG_WHISPER) {
// Pass up to caller API as WHISPER event
zframe_t *cookie = zre_msg_content (msg);
zstr_sendm (self->pipe, "WHISPER");
zstr_sendm (self->pipe, identity);
zframe_send (&cookie, self->pipe, ZFRAME_REUSE); // let msg free the frame
}
else
if (zre_msg_id (msg) == ZRE_MSG_SHOUT) {
// Pass up to caller as SHOUT event
zframe_t *cookie = zre_msg_content (msg);
zstr_sendm (self->pipe, "SHOUT");
zstr_sendm (self->pipe, identity);
zstr_sendm (self->pipe, zre_msg_group (msg));
zframe_send (&cookie, self->pipe, ZFRAME_REUSE); // let msg free the frame
}
else
if (zre_msg_id (msg) == ZRE_MSG_PING) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_PING_OK);
zre_peer_send (peer, &msg);
}
else
if (zre_msg_id (msg) == ZRE_MSG_JOIN) {
s_join_peer_group (self, peer, zre_msg_group (msg));
assert (zre_msg_status (msg) == zre_peer_status (peer));
}
else
if (zre_msg_id (msg) == ZRE_MSG_LEAVE) {
s_leave_peer_group (self, peer, zre_msg_group (msg));
assert (zre_msg_status (msg) == zre_peer_status (peer));
}
free (identity);
zre_msg_destroy (&msg);
// Activity from peer resets peer timers
zre_peer_refresh (peer);
return 0;
}
static int
agent_recv_from_api (agent_t *self)
{
// Get the whole message off the pipe in one go
zmsg_t *request = zmsg_recv (self->pipe);
char *command = zmsg_popstr (request);
if (!command)
return -1; // Interrupted
if (streq (command, "WHISPER")) {
// Get peer to send message to
char *identity = zmsg_popstr (request);
zre_peer_t *peer = (zre_peer_t *) zhash_lookup (self->peers, identity);
// Send frame on out to peer's mailbox, drop message
// if peer doesn't exist (may have been destroyed)
if (peer) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_WHISPER);
zre_msg_content_set (msg, zmsg_pop (request));
zre_peer_send (peer, &msg);
}
free (identity);
}
else
if (streq (command, "SHOUT")) {
// Get group to send message to
char *name = zmsg_popstr (request);
zre_group_t *group = (zre_group_t *) zhash_lookup (self->peer_groups, name);
if (group) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_SHOUT);
zre_msg_group_set (msg, name);
zre_msg_content_set (msg, zmsg_pop (request));
zre_group_send (group, &msg);
}
free (name);
}
else
if (streq (command, "JOIN")) {
char *name = zmsg_popstr (request);
zre_group_t *group = (zre_group_t *) zhash_lookup (self->own_groups, name);
if (!group) {
// Only send if we're not already in group
group = zre_group_new (name, self->own_groups);
zre_msg_t *msg = zre_msg_new (ZRE_MSG_JOIN);
zre_msg_group_set (msg, name);
// Update status before sending command
zre_msg_status_set (msg, ++(self->status));
zhash_foreach (self->peers, s_peer_send, msg);
zre_msg_destroy (&msg);
zre_log_info (self->log, ZRE_LOG_MSG_EVENT_JOIN, NULL, name);
}
free (name);
}
else
if (streq (command, "LEAVE")) {
char *name = zmsg_popstr (request);
zre_group_t *group = (zre_group_t *) zhash_lookup (self->own_groups, name);
if (group) {
// Only send if we are actually in group
zre_msg_t *msg = zre_msg_new (ZRE_MSG_LEAVE);
zre_msg_group_set (msg, name);
// Update status before sending command
zre_msg_status_set (msg, ++(self->status));
zhash_foreach (self->peers, s_peer_send, msg);
zre_msg_destroy (&msg);
zhash_delete (self->own_groups, name);
zre_log_info (self->log, ZRE_LOG_MSG_EVENT_LEAVE, NULL, name);
}
free (name);
}
else
if (streq (command, "SET")) {
char *name = zmsg_popstr (request);
char *value = zmsg_popstr (request);
zhash_update (self->headers, name, value);
free (name);
free (value);
}
else
if (streq (command, "PUBLISH")) {
char *logical = zmsg_popstr (request);
char *physical = zmsg_popstr (request);
// Virtual filename must start with slash
assert (logical [0] == '/');
// We create symbolic link pointing to real file
char *symlink = malloc (strlen (logical) + 3);
sprintf (symlink, "%s.ln", logical + 1);
fmq_file_t *file = fmq_file_new (self->fmq_outbox, symlink);
int rc = fmq_file_output (file);
assert (rc == 0);
fprintf (fmq_file_handle (file), "%s\n", physical);
fmq_file_destroy (&file);
free (symlink);
free (logical);
free (physical);
}
else
if (streq (command, "RETRACT")) {
char *logical = zmsg_popstr (request);
// Logical filename must start with slash
assert (logical [0] == '/');
// We create symbolic link pointing to real file
char *symlink = malloc (strlen (logical) + 3);
sprintf (symlink, "%s.ln", logical + 1);
fmq_file_t *file = fmq_file_new (self->fmq_outbox, symlink);
fmq_file_remove (file);
free (symlink);
free (logical);
}
free (command);
zmsg_destroy (&request);
return 0;
}
static void
zyre_node_recv_peer (zyre_node_t *self)
{
// Router socket tells us the identity of this peer
zre_msg_t *msg = zre_msg_recv (self->inbox);
if (!msg)
return; // Interrupted
// First frame is sender identity
byte *peerid_data = zframe_data (zre_msg_routing_id (msg));
size_t peerid_size = zframe_size (zre_msg_routing_id (msg));
// Identity must be [1] followed by 16-byte UUID
if (peerid_size != ZUUID_LEN + 1) {
zre_msg_destroy (&msg);
return;
}
zuuid_t *uuid = zuuid_new ();
zuuid_set (uuid, peerid_data + 1);
// On HELLO we may create the peer if it's unknown
// On other commands the peer must already exist
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, zuuid_str (uuid));
if (zre_msg_id (msg) == ZRE_MSG_HELLO) {
if (peer) {
// Remove fake peers
if (zyre_peer_ready (peer)) {
zyre_node_remove_peer (self, peer);
assert (!(zyre_peer_t *) zhash_lookup (self->peers, zuuid_str (uuid)));
}
else
if (streq (zyre_peer_endpoint (peer), self->endpoint)) {
// We ignore HELLO, if peer has same endpoint as current node
zre_msg_destroy (&msg);
zuuid_destroy (&uuid);
return;
}
}
peer = zyre_node_require_peer (self, uuid, zre_msg_endpoint (msg));
assert (peer);
zyre_peer_set_ready (peer, true);
}
// Ignore command if peer isn't ready
if (peer == NULL || !zyre_peer_ready (peer)) {
zre_msg_destroy (&msg);
zuuid_destroy (&uuid);
return;
}
if (zyre_peer_messages_lost (peer, msg)) {
zsys_warning ("(%s) messages lost from %s", self->name, zyre_peer_name (peer));
zyre_node_remove_peer (self, peer);
zre_msg_destroy (&msg);
zuuid_destroy (&uuid);
return;
}
// Now process each command
if (zre_msg_id (msg) == ZRE_MSG_HELLO) {
// Store properties from HELLO command into peer
zyre_peer_set_name (peer, zre_msg_name (msg));
zyre_peer_set_headers (peer, zre_msg_headers (msg));
// Tell the caller about the peer
zstr_sendm (self->outbox, "ENTER");
zstr_sendm (self->outbox, zyre_peer_identity (peer));
zstr_sendm (self->outbox, zyre_peer_name (peer));
zframe_t *headers = zhash_pack (zyre_peer_headers (peer));
zframe_send (&headers, self->outbox, ZFRAME_MORE);
zstr_send (self->outbox, zre_msg_endpoint (msg));
if (self->verbose)
zsys_info ("(%s) ENTER name=%s endpoint=%s",
self->name, zyre_peer_name (peer), zyre_peer_endpoint (peer));
// Join peer to listed groups
const char *name = zre_msg_groups_first (msg);
while (name) {
zyre_node_join_peer_group (self, peer, name);
name = zre_msg_groups_next (msg);
}
// Now take peer's status from HELLO, after joining groups
zyre_peer_set_status (peer, zre_msg_status (msg));
}
else
if (zre_msg_id (msg) == ZRE_MSG_WHISPER) {
// Pass up to caller API as WHISPER event
zstr_sendm (self->outbox, "WHISPER");
zstr_sendm (self->outbox, zuuid_str (uuid));
zstr_sendm (self->outbox, zyre_peer_name (peer));
zmsg_t *content = zmsg_dup (zre_msg_content (msg));
zmsg_send (&content, self->outbox);
}
else
if (zre_msg_id (msg) == ZRE_MSG_SHOUT) {
// Pass up to caller as SHOUT event
zstr_sendm (self->outbox, "SHOUT");
zstr_sendm (self->outbox, zuuid_str (uuid));
zstr_sendm (self->outbox, zyre_peer_name (peer));
zstr_sendm (self->outbox, zre_msg_group (msg));
zmsg_t *content = zmsg_dup (zre_msg_content (msg));
zmsg_send (&content, self->outbox);
}
else
if (zre_msg_id (msg) == ZRE_MSG_PING) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_PING_OK);
zyre_peer_send (peer, &msg);
}
else
if (zre_msg_id (msg) == ZRE_MSG_JOIN) {
zyre_node_join_peer_group (self, peer, zre_msg_group (msg));
assert (zre_msg_status (msg) == zyre_peer_status (peer));
}
else
if (zre_msg_id (msg) == ZRE_MSG_LEAVE) {
zyre_node_leave_peer_group (self, peer, zre_msg_group (msg));
assert (zre_msg_status (msg) == zyre_peer_status (peer));
}
zuuid_destroy (&uuid);
zre_msg_destroy (&msg);
// Activity from peer resets peer timers
zyre_peer_refresh (peer, self->evasive_timeout, self->expired_timeout);
}
static int
zyre_node_recv_api (zyre_node_t *self)
{
// Get the whole message off the pipe in one go
zmsg_t *request = zmsg_recv (self->pipe);
char *command = zmsg_popstr (request);
if (!command)
return -1; // Interrupted
if (streq (command, "SET NAME")) {
free (self->name);
self->name = zmsg_popstr (request);
assert (self->name);
}
else
if (streq (command, "SET HEADER")) {
char *name = zmsg_popstr (request);
char *value = zmsg_popstr (request);
zhash_update (self->headers, name, value);
zstr_free (&name);
zstr_free (&value);
}
else
if (streq (command, "SET VERBOSE"))
self->verbose = true;
else
if (streq (command, "SET PORT")) {
char *value = zmsg_popstr (request);
self->beacon_port = atoi (value);
zstr_free (&value);
}
else
if (streq (command, "SET INTERVAL")) {
char *value = zmsg_popstr (request);
self->interval = atol (value);
zstr_free (&value);
}
else
if (streq (command, "UUID"))
zstr_send (self->pipe, zuuid_str (self->uuid));
else
if (streq (command, "NAME"))
zstr_send (self->pipe, self->name);
else
if (streq (command, "BIND")) {
char *endpoint = zmsg_popstr (request);
zsock_signal (self->pipe, zyre_node_bind (self, endpoint));
zstr_free (&endpoint);
}
else
if (streq (command, "CONNECT")) {
char *endpoint = zmsg_popstr (request);
zsock_signal (self->pipe, zyre_node_connect (self, endpoint));
zstr_free (&endpoint);
}
else
if (streq (command, "START"))
zsock_signal (self->pipe, zyre_node_start (self));
else
if (streq (command, "STOP"))
zsock_signal (self->pipe, zyre_node_stop (self));
else
if (streq (command, "WHISPER")) {
// Get peer to send message to
char *identity = zmsg_popstr (request);
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, identity);
// Send frame on out to peer's mailbox, drop message
// if peer doesn't exist (may have been destroyed)
if (peer) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_WHISPER);
zre_msg_set_content (msg, &request);
zyre_peer_send (peer, &msg);
}
zstr_free (&identity);
}
else
if (streq (command, "SHOUT")) {
// Get group to send message to
char *name = zmsg_popstr (request);
zyre_group_t *group = (zyre_group_t *) zhash_lookup (self->peer_groups, name);
if (group) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_SHOUT);
zre_msg_set_group (msg, name);
zre_msg_set_content (msg, &request);
zyre_group_send (group, &msg);
}
zstr_free (&name);
}
else
if (streq (command, "JOIN")) {
char *name = zmsg_popstr (request);
zyre_group_t *group = (zyre_group_t *) zhash_lookup (self->own_groups, name);
if (!group) {
// Only send if we're not already in group
group = zyre_group_new (name, self->own_groups);
zre_msg_t *msg = zre_msg_new (ZRE_MSG_JOIN);
zre_msg_set_group (msg, name);
// Update status before sending command
zre_msg_set_status (msg, ++(self->status));
zhash_foreach (self->peers, zyre_node_send_peer, msg);
zre_msg_destroy (&msg);
if (self->verbose)
zsys_info ("(%s) JOIN group=%s", self->name, name);
}
zstr_free (&name);
}
else
if (streq (command, "LEAVE")) {
char *name = zmsg_popstr (request);
zyre_group_t *group = (zyre_group_t *) zhash_lookup (self->own_groups, name);
if (group) {
// Only send if we are actually in group
zre_msg_t *msg = zre_msg_new (ZRE_MSG_LEAVE);
zre_msg_set_group (msg, name);
// Update status before sending command
zre_msg_set_status (msg, ++(self->status));
zhash_foreach (self->peers, zyre_node_send_peer, msg);
zre_msg_destroy (&msg);
zhash_delete (self->own_groups, name);
if (self->verbose)
zsys_info ("(%s) LEAVE group=%s", self->name, name);
}
zstr_free (&name);
}
else
if (streq (command, "DUMP"))
zyre_node_dump (self);
else
if (streq (command, "$TERM"))
self->terminated = true;
else {
zsys_error ("invalid command '%s'\n", command);
assert (false);
}
zstr_free (&command);
zmsg_destroy (&request);
return 0;
}
static void
zyre_node_recv_api (zyre_node_t *self)
{
// Get the whole message off the pipe in one go
zmsg_t *request = zmsg_recv (self->pipe);
if (!request)
return; // Interrupted
char *command = zmsg_popstr (request);
if (streq (command, "UUID"))
zstr_send (self->pipe, zuuid_str (self->uuid));
else
if (streq (command, "NAME"))
zstr_send (self->pipe, self->name);
else
if (streq (command, "SET NAME")) {
free (self->name);
self->name = zmsg_popstr (request);
assert (self->name);
}
else
if (streq (command, "SET HEADER")) {
char *name = zmsg_popstr (request);
char *value = zmsg_popstr (request);
zhash_update (self->headers, name, value);
zstr_free (&name);
zstr_free (&value);
}
else
if (streq (command, "SET VERBOSE"))
self->verbose = true;
else
if (streq (command, "SET PORT")) {
char *value = zmsg_popstr (request);
self->beacon_port = atoi (value);
zstr_free (&value);
}
else
if (streq (command, "SET EVASIVE TIMEOUT")) {
char *value = zmsg_popstr (request);
self->evasive_timeout = atoi (value);
zstr_free (&value);
}
else
if (streq (command, "SET EXPIRED TIMEOUT")) {
char *value = zmsg_popstr (request);
self->expired_timeout = atoi (value);
zstr_free (&value);
}
else
if (streq (command, "SET INTERVAL")) {
char *value = zmsg_popstr (request);
self->interval = atol (value);
zstr_free (&value);
}
else
if (streq (command, "SET ENDPOINT")) {
zyre_node_gossip_start (self);
char *endpoint = zmsg_popstr (request);
if (zsock_bind (self->inbox, "%s", endpoint) != -1) {
zstr_free (&self->endpoint);
self->endpoint = endpoint;
zsock_signal (self->pipe, 0);
}
else {
zstr_free (&endpoint);
zsock_signal (self->pipe, 1);
}
}
else
if (streq (command, "GOSSIP BIND")) {
zyre_node_gossip_start (self);
zstr_free (&self->gossip_bind);
self->gossip_bind = zmsg_popstr (request);
zstr_sendx (self->gossip, "BIND", self->gossip_bind, NULL);
}
else
if (streq (command, "GOSSIP CONNECT")) {
zyre_node_gossip_start (self);
zstr_free (&self->gossip_connect);
self->gossip_connect = zmsg_popstr (request);
zstr_sendx (self->gossip, "CONNECT", self->gossip_connect, NULL);
}
else
if (streq (command, "START"))
zsock_signal (self->pipe, zyre_node_start (self));
else
if (streq (command, "STOP"))
zsock_signal (self->pipe, zyre_node_stop (self));
else
if (streq (command, "WHISPER")) {
// Get peer to send message to
char *identity = zmsg_popstr (request);
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, identity);
// Send frame on out to peer's mailbox, drop message
// if peer doesn't exist (may have been destroyed)
if (peer) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_WHISPER);
zre_msg_set_content (msg, &request);
zyre_peer_send (peer, &msg);
}
zstr_free (&identity);
}
else
if (streq (command, "SHOUT")) {
// Get group to send message to
char *name = zmsg_popstr (request);
zyre_group_t *group = (zyre_group_t *) zhash_lookup (self->peer_groups, name);
if (group) {
zre_msg_t *msg = zre_msg_new (ZRE_MSG_SHOUT);
zre_msg_set_group (msg, name);
zre_msg_set_content (msg, &request);
zyre_group_send (group, &msg);
}
zstr_free (&name);
}
else
if (streq (command, "JOIN")) {
char *name = zmsg_popstr (request);
if (!zlist_exists (self->own_groups, name)) {
void *item;
// Only send if we're not already in group
zlist_append (self->own_groups, name);
zre_msg_t *msg = zre_msg_new (ZRE_MSG_JOIN);
zre_msg_set_group (msg, name);
// Update status before sending command
zre_msg_set_status (msg, ++(self->status));
for (item = zhash_first (self->peers); item != NULL;
item = zhash_next (self->peers))
zyre_node_send_peer (zhash_cursor (self->peers), item, msg);
zre_msg_destroy (&msg);
if (self->verbose)
zsys_info ("(%s) JOIN group=%s", self->name, name);
}
zstr_free (&name);
}
else
if (streq (command, "LEAVE")) {
char *name = zmsg_popstr (request);
if (zlist_exists (self->own_groups, name)) {
void *item;
// Only send if we are actually in group
zre_msg_t *msg = zre_msg_new (ZRE_MSG_LEAVE);
zre_msg_set_group (msg, name);
// Update status before sending command
zre_msg_set_status (msg, ++(self->status));
for (item = zhash_first (self->peers); item != NULL;
item = zhash_next (self->peers))
zyre_node_send_peer (zhash_cursor (self->peers), item, msg);
zre_msg_destroy (&msg);
zlist_remove (self->own_groups, name);
if (self->verbose)
zsys_info ("(%s) LEAVE group=%s", self->name, name);
}
zstr_free (&name);
}
else
if (streq (command, "PEERS"))
zsock_send (self->pipe, "p", zhash_keys (self->peers));
else
if (streq (command, "GROUP PEERS")) {
char *name = zmsg_popstr (request);
zyre_group_t *group = (zyre_group_t *) zhash_lookup (self->peer_groups, name);
if (group)
zsock_send (self->pipe, "p", zyre_group_peers (group));
else
zsock_send (self->pipe, "p", NULL);
zstr_free (&name);
}
else
if (streq (command, "PEER ENDPOINT")) {
char *uuid = zmsg_popstr (request);
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, uuid);
assert (peer);
zsock_send (self->pipe, "s", zyre_peer_endpoint (peer));
zstr_free (&uuid);
}
else
if (streq (command, "PEER NAME")) {
char *uuid = zmsg_popstr (request);
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, uuid);
assert (peer);
zsock_send (self->pipe, "s", zyre_peer_name (peer));
zstr_free (&uuid);
}
else
if (streq (command, "PEER HEADER")) {
char *uuid = zmsg_popstr (request);
char *key = zmsg_popstr (request);
zyre_peer_t *peer = (zyre_peer_t *) zhash_lookup (self->peers, uuid);
if (!peer)
zstr_send (self->pipe, "");
else
zstr_send (self->pipe, zyre_peer_header (peer, key, NULL));
zstr_free (&uuid);
zstr_free (&key);
}
else
if (streq (command, "PEER GROUPS"))
zsock_send (self->pipe, "p", zhash_keys (self->peer_groups));
else
if (streq (command, "OWN GROUPS"))
zsock_send (self->pipe, "p", zlist_dup (self->own_groups));
else
if (streq (command, "DUMP"))
zyre_node_dump (self);
else
if (streq (command, "$TERM"))
self->terminated = true;
else {
zsys_error ("invalid command '%s'", command);
assert (false);
}
zstr_free (&command);
zmsg_destroy (&request);
}
int
zre_msg_test (bool verbose)
{
printf (" * zre_msg: ");
// @selftest
// Simple create/destroy test
zre_msg_t *self = zre_msg_new (0);
assert (self);
zre_msg_destroy (&self);
// Create pair of sockets we can send through
zctx_t *ctx = zctx_new ();
assert (ctx);
void *output = zsocket_new (ctx, ZMQ_DEALER);
assert (output);
zsocket_bind (output, "inproc://selftest");
void *input = zsocket_new (ctx, ZMQ_ROUTER);
assert (input);
zsocket_connect (input, "inproc://selftest");
// Encode/send/decode and verify each message type
int instance;
zre_msg_t *copy;
self = zre_msg_new (ZRE_MSG_HELLO);
// Check that _dup works on empty message
copy = zre_msg_dup (self);
assert (copy);
zre_msg_destroy (©);
zre_msg_set_sequence (self, 123);
zre_msg_set_ipaddress (self, "Life is short but Now lasts for ever");
zre_msg_set_mailbox (self, 123);
zre_msg_groups_append (self, "Name: %s", "Brutus");
zre_msg_groups_append (self, "Age: %d", 43);
zre_msg_set_status (self, 123);
zre_msg_headers_insert (self, "Name", "Brutus");
zre_msg_headers_insert (self, "Age", "%d", 43);
// Send twice from same object
zre_msg_send_again (self, output);
zre_msg_send (&self, output);
for (instance = 0; instance < 2; instance++) {
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_routing_id (self));
assert (zre_msg_sequence (self) == 123);
assert (streq (zre_msg_ipaddress (self), "Life is short but Now lasts for ever"));
assert (zre_msg_mailbox (self) == 123);
assert (zre_msg_groups_size (self) == 2);
assert (streq (zre_msg_groups_first (self), "Name: Brutus"));
assert (streq (zre_msg_groups_next (self), "Age: 43"));
assert (zre_msg_status (self) == 123);
assert (zre_msg_headers_size (self) == 2);
assert (streq (zre_msg_headers_string (self, "Name", "?"), "Brutus"));
assert (zre_msg_headers_number (self, "Age", 0) == 43);
zre_msg_destroy (&self);
}
self = zre_msg_new (ZRE_MSG_WHISPER);
// Check that _dup works on empty message
copy = zre_msg_dup (self);
assert (copy);
zre_msg_destroy (©);
zre_msg_set_sequence (self, 123);
zmsg_t *whisper_content = zmsg_new ();
zre_msg_set_content (self, &whisper_content);
zmsg_addstr (zre_msg_content (self), "Hello, World");
// Send twice from same object
zre_msg_send_again (self, output);
zre_msg_send (&self, output);
for (instance = 0; instance < 2; instance++) {
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_routing_id (self));
assert (zre_msg_sequence (self) == 123);
assert (zmsg_size (zre_msg_content (self)) == 1);
zre_msg_destroy (&self);
}
self = zre_msg_new (ZRE_MSG_SHOUT);
// Check that _dup works on empty message
copy = zre_msg_dup (self);
assert (copy);
zre_msg_destroy (©);
zre_msg_set_sequence (self, 123);
zre_msg_set_group (self, "Life is short but Now lasts for ever");
zmsg_t *shout_content = zmsg_new ();
zre_msg_set_content (self, &shout_content);
zmsg_addstr (zre_msg_content (self), "Hello, World");
// Send twice from same object
zre_msg_send_again (self, output);
zre_msg_send (&self, output);
for (instance = 0; instance < 2; instance++) {
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_routing_id (self));
assert (zre_msg_sequence (self) == 123);
assert (streq (zre_msg_group (self), "Life is short but Now lasts for ever"));
assert (zmsg_size (zre_msg_content (self)) == 1);
zre_msg_destroy (&self);
}
self = zre_msg_new (ZRE_MSG_JOIN);
// Check that _dup works on empty message
copy = zre_msg_dup (self);
assert (copy);
zre_msg_destroy (©);
zre_msg_set_sequence (self, 123);
zre_msg_set_group (self, "Life is short but Now lasts for ever");
zre_msg_set_status (self, 123);
// Send twice from same object
zre_msg_send_again (self, output);
zre_msg_send (&self, output);
for (instance = 0; instance < 2; instance++) {
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_routing_id (self));
assert (zre_msg_sequence (self) == 123);
assert (streq (zre_msg_group (self), "Life is short but Now lasts for ever"));
assert (zre_msg_status (self) == 123);
zre_msg_destroy (&self);
}
self = zre_msg_new (ZRE_MSG_LEAVE);
// Check that _dup works on empty message
copy = zre_msg_dup (self);
assert (copy);
zre_msg_destroy (©);
zre_msg_set_sequence (self, 123);
zre_msg_set_group (self, "Life is short but Now lasts for ever");
zre_msg_set_status (self, 123);
// Send twice from same object
zre_msg_send_again (self, output);
zre_msg_send (&self, output);
for (instance = 0; instance < 2; instance++) {
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_routing_id (self));
assert (zre_msg_sequence (self) == 123);
assert (streq (zre_msg_group (self), "Life is short but Now lasts for ever"));
assert (zre_msg_status (self) == 123);
zre_msg_destroy (&self);
}
self = zre_msg_new (ZRE_MSG_PING);
// Check that _dup works on empty message
copy = zre_msg_dup (self);
assert (copy);
zre_msg_destroy (©);
zre_msg_set_sequence (self, 123);
// Send twice from same object
zre_msg_send_again (self, output);
zre_msg_send (&self, output);
for (instance = 0; instance < 2; instance++) {
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_routing_id (self));
assert (zre_msg_sequence (self) == 123);
zre_msg_destroy (&self);
}
self = zre_msg_new (ZRE_MSG_PING_OK);
// Check that _dup works on empty message
copy = zre_msg_dup (self);
assert (copy);
zre_msg_destroy (©);
zre_msg_set_sequence (self, 123);
// Send twice from same object
zre_msg_send_again (self, output);
zre_msg_send (&self, output);
for (instance = 0; instance < 2; instance++) {
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_routing_id (self));
assert (zre_msg_sequence (self) == 123);
zre_msg_destroy (&self);
}
zctx_destroy (&ctx);
// @end
printf ("OK\n");
return 0;
}
int
zre_msg_test (bool verbose)
{
printf (" * zre_msg: ");
// @selftest
// Simple create/destroy test
zre_msg_t *self = zre_msg_new (0);
assert (self);
zre_msg_destroy (&self);
// Create pair of sockets we can send through
zctx_t *ctx = zctx_new ();
assert (ctx);
void *output = zsocket_new (ctx, ZMQ_DEALER);
assert (output);
zsocket_bind (output, "inproc://selftest");
void *input = zsocket_new (ctx, ZMQ_ROUTER);
assert (input);
zsocket_connect (input, "inproc://selftest");
// Encode/send/decode and verify each message type
self = zre_msg_new (ZRE_MSG_HELLO);
zre_msg_set_sequence (self, 123);
zre_msg_set_ipaddress (self, "Life is short but Now lasts for ever");
zre_msg_set_mailbox (self, 123);
zre_msg_groups_append (self, "Name: %s", "Brutus");
zre_msg_groups_append (self, "Age: %d", 43);
zre_msg_set_status (self, 123);
zre_msg_headers_insert (self, "Name", "Brutus");
zre_msg_headers_insert (self, "Age", "%d", 43);
zre_msg_send (&self, output);
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_sequence (self) == 123);
assert (streq (zre_msg_ipaddress (self), "Life is short but Now lasts for ever"));
assert (zre_msg_mailbox (self) == 123);
assert (zre_msg_groups_size (self) == 2);
assert (streq (zre_msg_groups_first (self), "Name: Brutus"));
assert (streq (zre_msg_groups_next (self), "Age: 43"));
assert (zre_msg_status (self) == 123);
assert (zre_msg_headers_size (self) == 2);
assert (streq (zre_msg_headers_string (self, "Name", "?"), "Brutus"));
assert (zre_msg_headers_number (self, "Age", 0) == 43);
zre_msg_destroy (&self);
self = zre_msg_new (ZRE_MSG_WHISPER);
zre_msg_set_sequence (self, 123);
zre_msg_set_content (self, zframe_new ("Captcha Diem", 12));
zre_msg_send (&self, output);
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_sequence (self) == 123);
assert (zframe_streq (zre_msg_content (self), "Captcha Diem"));
zre_msg_destroy (&self);
self = zre_msg_new (ZRE_MSG_SHOUT);
zre_msg_set_sequence (self, 123);
zre_msg_set_group (self, "Life is short but Now lasts for ever");
zre_msg_set_content (self, zframe_new ("Captcha Diem", 12));
zre_msg_send (&self, output);
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_sequence (self) == 123);
assert (streq (zre_msg_group (self), "Life is short but Now lasts for ever"));
assert (zframe_streq (zre_msg_content (self), "Captcha Diem"));
zre_msg_destroy (&self);
self = zre_msg_new (ZRE_MSG_JOIN);
zre_msg_set_sequence (self, 123);
zre_msg_set_group (self, "Life is short but Now lasts for ever");
zre_msg_set_status (self, 123);
zre_msg_send (&self, output);
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_sequence (self) == 123);
assert (streq (zre_msg_group (self), "Life is short but Now lasts for ever"));
assert (zre_msg_status (self) == 123);
zre_msg_destroy (&self);
self = zre_msg_new (ZRE_MSG_LEAVE);
zre_msg_set_sequence (self, 123);
zre_msg_set_group (self, "Life is short but Now lasts for ever");
zre_msg_set_status (self, 123);
zre_msg_send (&self, output);
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_sequence (self) == 123);
assert (streq (zre_msg_group (self), "Life is short but Now lasts for ever"));
assert (zre_msg_status (self) == 123);
zre_msg_destroy (&self);
self = zre_msg_new (ZRE_MSG_PING);
zre_msg_set_sequence (self, 123);
zre_msg_send (&self, output);
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_sequence (self) == 123);
zre_msg_destroy (&self);
self = zre_msg_new (ZRE_MSG_PING_OK);
zre_msg_set_sequence (self, 123);
zre_msg_send (&self, output);
self = zre_msg_recv (input);
assert (self);
assert (zre_msg_sequence (self) == 123);
zre_msg_destroy (&self);
zctx_destroy (&ctx);
// @end
printf ("OK\n");
return 0;
}
