int main (void)
{
void *context = zmq_ctx_new ();
void *sink = zmq_socket (context, ZMQ_ROUTER);
zmq_bind (sink, "inproc://example");
// First allow 0MQ to set the identity
void *anonymous = zmq_socket (context, ZMQ_REQ);
zmq_connect (anonymous, "inproc://example");
s_send (anonymous, "ROUTER uses a generated UUID");
s_dump (sink);
// Then set the identity ourselves
void *identified = zmq_socket (context, ZMQ_REQ);
zmq_setsockopt (identified, ZMQ_IDENTITY, "PEER2", 5);
zmq_connect (identified, "inproc://example");
s_send (identified, "ROUTER socket uses REQ's socket identity");
s_dump (sink);
zmq_close (sink);
zmq_close (anonymous);
zmq_close (identified);
zmq_ctx_destroy (context);
return 0;
}
//Process 0 is the leader process and will run this thread
void * sequencer(){
int s = 1;
int s_c[] = {1,1,1,1,1,1}; //vector timestamps for causal
int sendTo, index;
while(1){
sendTo = s_request();
if (ORDERING == TOTAL){
s_send(s, sendTo);
s++;
}
else if (ORDERING == CAUSAL){
if (sendTo == -1)
index = 0;
else
index = sendTo;
//printf("%d\n",s_c[index]);
s_send(s_c[index],sendTo);
s_c[index]++;
}
}
return 0;
}
int main (void)
{
void *context = zmq_init (1);
void *sink = zmq_socket (context, ZMQ_XREP);
zmq_bind (sink, "inproc://example");
// First allow 0MQ to set the identity
void *anonymous = zmq_socket (context, ZMQ_REQ);
zmq_connect (anonymous, "inproc://example");
s_send (anonymous, "XREP uses a generated UUID");
s_dump (sink);
// Then set the identity ourself
void *identified = zmq_socket (context, ZMQ_REQ);
zmq_setsockopt (identified, ZMQ_IDENTITY, "Hello", 5);
zmq_connect (identified, "inproc://example");
s_send (identified, "XREP socket uses REQ's socket identity");
s_dump (sink);
zmq_close (sink);
zmq_close (anonymous);
zmq_close (identified);
zmq_term (context);
return 0;
}
static void *
worker_task (void *args)
{
void *context = zmq_ctx_new ();
void *worker = zmq_socket (context, ZMQ_REQ);
s_set_id (worker); // Set a printable identity
zmq_connect (worker, "ipc://backend.ipc");
// Tell broker we're ready for work
s_send (worker, "READY");
while (1) {
// Read and save all frames until we get an empty frame
// In this example there is only 1 but it could be more
char *identity = s_recv (worker);
char *empty = s_recv (worker);
assert (*empty == 0);
free (empty);
// Get request, send reply
char *request = s_recv (worker);
printf ("Worker: %s\n", request);
free (request);
s_sendmore (worker, identity);
s_sendmore (worker, "");
s_send (worker, "OK");
free (identity);
}
zmq_close (worker);
zmq_ctx_destroy (context);
return NULL;
}
int main () {
zmq::context_t context(1);
// Subscriber tells us when it's ready here
zmq::socket_t sync(context, ZMQ_PULL);
sync.bind("tcp://*:5564");
// We send updates via this socket
zmq::socket_t publisher (context, ZMQ_PUB);
publisher.bind("tcp://*:5565");
// Wait for synchronization request
s_recv (sync);
// Now broadcast exactly 10 updates with pause
int update_nbr;
for (update_nbr = 0; update_nbr < 10; update_nbr++) {
std::ostringstream oss;
oss << "Update "<< update_nbr ;
s_send (publisher, oss.str());
sleep (1);
}
s_send (publisher, "END");
sleep (1); // Give 0MQ/2.0.x time to flush output
return 0;
}
int main (void)
{
s_version_assert (2, 1);
void *context = zmq_init (1);
// Socket to talk to clients
void *publisher = zmq_socket (context, ZMQ_PUB);
zmq_bind (publisher, "tcp://*:5561");
// Socket to receive signals
void *syncservice = zmq_socket (context, ZMQ_REP);
zmq_bind (syncservice, "tcp://*:5562");
// Get synchronization from subscribers
int subscribers = 0;
while (subscribers < SUBSCRIBERS_EXPECTED) {
// - wait for synchronization request
char *string = s_recv (syncservice);
free (string);
// - send synchronization reply
s_send (syncservice, "");
subscribers++;
}
// Now broadcast exactly 1M updates followed by END
int update_nbr;
for (update_nbr = 0; update_nbr < 1000000; update_nbr++)
s_send (publisher, "Rhubarb");
s_send (publisher, "END");
zmq_close (publisher);
zmq_close (syncservice);
zmq_term (context);
return 0;
}
// Worker using REQ socket to do LRU routing
//
static void *
worker_thread (void *args) {
void *context = zmq_init (1);
void *worker = zmq_socket (context, ZMQ_REQ);
s_set_id (worker); // Makes tracing easier
zmq_connect (worker, "ipc://backend.ipc");
// Tell broker we're ready for work
s_send (worker, "READY");
while (1) {
// Read and save all frames until we get an empty frame
// In this example there is only 1 but it could be more
char *address = s_recv (worker);
char *empty = s_recv (worker);
assert (*empty == 0);
free (empty);
// Get request, send reply
char *request = s_recv (worker);
printf ("Worker: %s\n", request);
free (request);
s_sendmore (worker, address);
s_sendmore (worker, "");
s_send (worker, "OK");
free (address);
}
zmq_close (worker);
zmq_term (context);
return NULL;
}
// We will do this all in one thread to emphasize the sequence
// of events...
int main () {
zmq::context_t context(1);
zmq::socket_t client (context, ZMQ_XREP);
client.bind("ipc://routing.ipc");
zmq::socket_t worker (context, ZMQ_REP);
worker.setsockopt(ZMQ_IDENTITY, "A", 1);
worker.connect("ipc://routing.ipc");
// Wait for sockets to stabilize
sleep (1);
// Send papa address, address stack, empty part, and request
s_sendmore (client, "A");
s_sendmore (client, "address 3");
s_sendmore (client, "address 2");
s_sendmore (client, "address 1");
s_sendmore (client, "");
s_send (client, "This is the workload");
// Worker should get just the workload
s_dump (worker);
// We don't play with envelopes in the worker
s_send (worker, "This is the reply");
// Now dump what we got off the XREP socket...
s_dump (client);
return 0;
}
//recRequest by one of the Satellites, reply with number of stored msgs and the oldest stored msg
void ReefServer::recRequest(std::string aka){
//find satellite by alias in the map
auto search = satMsgControlMap.find(aka);
if (search != satMsgControlMap.end()) { //if sat has been found
//get the Controlnumbers for this satellite
satelliteMsgControl& msgControl = search->second;
int msgCount = msgControl.control[1]; //number of stored Messages for this Satellite
if (!msgCount){
s_send(rep, std::to_string(msgCount)); //send the number of messages to the satellite
}
else{
s_sendmore(rep, std::to_string(msgCount)); //send the number of messages to the satellite
int msgPosition = msgControl.control[0]; //find position of Message Queue in the vector of all Queues
std::pair<std::string, std::string> msg = satelliteMsgs[msgPosition][0];
s_sendmore(rep, msg.first); //send the Message to the satellite
s_send(rep, msg.second);
satelliteMsgs[msgPosition].erase(satelliteMsgs[msgPosition].begin()); //erase the Message from the Queue
msgControl.control[1]--; //lower the count of stored Messages by 1
CUR_MESSAGES--;
}
}
else{
s_send(rep, "-1");
}
}
// We will do this all in one thread to emphasize the sequence
// of events...
int main () {
void *context = zmq_init (1);
void *client = zmq_socket (context, ZMQ_XREP);
zmq_bind (client, "ipc://routing");
void *worker = zmq_socket (context, ZMQ_REP);
zmq_setsockopt (worker, ZMQ_IDENTITY, "A", 1);
zmq_connect (worker, "ipc://routing");
// Wait for sockets to stabilize
sleep (1);
// Send papa address, address stack, empty part, and request
s_sendmore (client, "A");
s_sendmore (client, "address 3");
s_sendmore (client, "address 2");
s_sendmore (client, "address 1");
s_sendmore (client, "");
s_send (client, "This is the workload");
// Worker should get just the workload
s_dump (worker);
// We don't play with envelopes in the worker
s_send (worker, "This is the reply");
// Now dump what we got off the XREP socket...
s_dump (client);
zmq_term (context);
return 0;
}
// Worker using REQ socket to do LRU routing
//
static void *
worker_thread (void *arg) {
zmq::context_t context(1);
zmq::socket_t worker (context, ZMQ_REQ);
s_set_id (worker); // Makes tracing easier
worker.connect("ipc://backend.ipc");
// Tell backend we're ready for work
s_send (worker, "READY");
while (1) {
// Read and save all frames until we get an empty frame
// In this example there is only 1 but it could be more
std::string address = s_recv (worker);
{
std::string empty = s_recv (worker);
assert (empty.size() == 0);
}
// Get request, send reply
std::string request = s_recv (worker);
std::cout << "Worker: " << request << std::endl;
s_sendmore (worker, address);
s_sendmore (worker, "");
s_send (worker, "OK");
}
return (NULL);
}
static void
zap_handler (void *ctx)
{
// Create and bind ZAP socket
void *zap = zmq_socket (ctx, ZMQ_REP);
assert (zap);
int rc = zmq_bind (zap, "inproc://zeromq.zap.01");
assert (rc == 0);
// Process ZAP requests forever
while (true) {
char *version = s_recv (zap);
if (!version)
break; // Terminating
char *sequence = s_recv (zap);
char *domain = s_recv (zap);
char *address = s_recv (zap);
char *identity = s_recv (zap);
char *mechanism = s_recv (zap);
char *username = s_recv (zap);
char *password = s_recv (zap);
assert (streq (version, "1.0"));
assert (streq (mechanism, "PLAIN"));
assert (streq (identity, "IDENT"));
s_sendmore (zap, version);
s_sendmore (zap, sequence);
if (streq (username, "admin")
&& streq (password, "password")) {
s_sendmore (zap, "200");
s_sendmore (zap, "OK");
s_sendmore (zap, "anonymous");
s_send (zap, "");
}
else {
s_sendmore (zap, "400");
s_sendmore (zap, "Invalid username or password");
s_sendmore (zap, "");
s_send (zap, "");
}
free (version);
free (sequence);
free (domain);
free (address);
free (identity);
free (mechanism);
free (username);
free (password);
}
rc = zmq_close (zap);
assert (rc == 0);
}
int main(int argc, char * argv[])
{
if(argc < 2)
{
cout<<"please enter a file name\n";
exit(-1);
}
char * filename = argv[1];
FILE * comfile = fopen(filename,"r");
if(!comfile)
{
perror("failed to open command file");
exit(-1);
}
map<int,int> ports = parseMembers();
map<int,int> nodeToSocket;
map<int, int>::const_iterator endports = ports.end();
for(map<int, int>::const_iterator it = ports.begin(); it != endports; it++)
{
nodeToSocket[it->first] = new_socket();
connect(nodeToSocket[it->first],it->second);
}
ports.clear();
s_send(nodeToSocket[0],"-1");
char com[BUFFER_SIZE];
char tmp[BUFFER_SIZE];
while(fgets(com, BUFFER_SIZE,comfile) != NULL){
strcpy(tmp,com);
unsigned int sleeptime = atoi(strtok(com,"\n:"));
sleeptime = sleeptime * 1000;
usleep(sleeptime);
int nodeID = atoi(strtok(NULL,"\n:"));
//locate the 2nd colon for commandID options
int i,j;
for(i = 0,j = 0; j < 2 && i < BUFFER_SIZE; i++){
if(tmp[i] == ':')
j++;
}
char * comAndOpt = tmp + i;
char moretmp[BUFFER_SIZE];
strcpy(moretmp,"0:C:");
strcat(moretmp,strtok(comAndOpt,"\n")); //strtok strips new line from command
//send comAndOpt to nodeID
printf("sending %s to %d\n",moretmp,nodeID);
s_send(nodeToSocket[nodeID],moretmp);
}
return 0;
}
int main () {
zmq::context_t context (1);
zmq::socket_t * client = s_client_socket (context);
int sequence = 0;
int retries_left = REQUEST_RETRIES;
while (retries_left) {
std::stringstream request;
request << ++sequence;
s_send (*client, request.str());
sleep (1);
bool expect_reply = true;
while (expect_reply) {
// Poll socket for a reply, with timeout
zmq::pollitem_t items[] = { { *client, 0, ZMQ_POLLIN, 0 } };
zmq::poll (&items[0], 1, REQUEST_TIMEOUT * 1000);
// If we got a reply, process it
if (items[0].revents & ZMQ_POLLIN) {
// We got a reply from the server, must match sequence
std::string reply = s_recv (*client);
if (atoi (reply.c_str ()) == sequence) {
std::cout << "I: server replied OK (" << reply << ")" << std::endl;
retries_left = REQUEST_RETRIES;
expect_reply = false;
}
else {
std::cout << "E: malformed reply from server: " << reply << std::endl;
}
}
else
if (--retries_left == 0) {
std::cout << "E: server seems to be offline, abandoning" << std::endl;
expect_reply = false;
break;
}
else {
std::cout << "W: no response from server, retrying..." << std::endl;
// Old socket will be confused; close it and open a new one
delete client;
client = s_client_socket (context);
// Send request again, on new socket
s_send (*client, request.str());
}
}
}
delete client;
return 0;
}
int main(int argc, char *argv[])
{
void *ctx, *handler, *thread, *server, *client;
const char *domain, *connect_addr;
int optval;
domain = argc > 1 ? argv[1] : "test";
connect_addr = strcmp(domain, "fail") ? "tcp://127.0.0.1:9000" : "tcp://127.0.0.1:9001";
assert((ctx = zmq_ctx_new()));
/* Start ZAP handler thread. */
assert((handler = zmq_socket(ctx, ZMQ_REP)));
assert(!(zmq_bind(handler, "inproc://zeromq.zap.01")));
assert((thread = zmq_threadstart(zap_handler, handler)));
/* Bind server. */
assert((server = zmq_socket(ctx, ZMQ_DEALER)));
assert(!(zmq_setsockopt(server, ZMQ_ZAP_DOMAIN, domain, strlen(domain))));
assert(!zmq_bind(server, "tcp://127.0.0.1:9000"));
/* Connect client. */
assert((client = zmq_socket(ctx, ZMQ_DEALER)));
optval = 200;
assert(!(zmq_setsockopt(client, ZMQ_RECONNECT_IVL, &optval, sizeof(optval))));
optval = 5000;
assert(!(zmq_setsockopt(client, ZMQ_RECONNECT_IVL_MAX, &optval, sizeof(optval))));
optval = 30000;
assert(!(zmq_setsockopt(client, ZMQ_SNDTIMEO, &optval, sizeof(optval))));
optval = 1;
assert(!(zmq_setsockopt(client, ZMQ_IMMEDIATE, &optval, sizeof(optval))));
assert(!zmq_connect(client, connect_addr));
/* Bounce test. */
s_send(client, "Hello, Server!");
assert(!strcmp(s_recv(server), "Hello, Server!"));
s_send(server, "Hello, Client!");
assert(!strcmp(s_recv(client), "Hello, Client!"));
/* Cleanup. */
assert(!zmq_disconnect(client, connect_addr));
assert(!zmq_close(client));
assert(!zmq_unbind(server, "tcp://127.0.0.1:9000"));
assert(!zmq_close(server));
assert(!zmq_term(ctx));
zmq_threadclose(thread);
return 0;
}
static void zap_handler (void *handler)
{
// Process ZAP requests forever
while (true) {
char *version = s_recv (handler);
if (!version)
break; // Terminating
char *sequence = s_recv (handler);
char *domain = s_recv (handler);
char *address = s_recv (handler);
char *identity = s_recv (handler);
char *mechanism = s_recv (handler);
uint8_t client_key [32];
int size = zmq_recv (handler, client_key, 32, 0);
assert (size == 32);
char client_key_text [40];
zmq_z85_encode (client_key_text, client_key, 32);
assert (streq (version, "1.0"));
assert (streq (mechanism, "CURVE"));
assert (streq (identity, "IDENT"));
s_sendmore (handler, version);
s_sendmore (handler, sequence);
if (streq (client_key_text, client_public)) {
s_sendmore (handler, "200");
s_sendmore (handler, "OK");
s_sendmore (handler, "anonymous");
s_send (handler, "");
}
else {
s_sendmore (handler, "400");
s_sendmore (handler, "Invalid client public key");
s_sendmore (handler, "");
s_send (handler, "");
}
free (version);
free (sequence);
free (domain);
free (address);
free (identity);
free (mechanism);
}
zmq_close (handler);
}
static void *
worker_thread (void *arg) {
zmq::context_t * context = (zmq::context_t *)arg;
zmq::socket_t worker (*context, ZMQ_REQ);
// We use a string identity for ease here
s_set_id (worker);
worker.connect("ipc://routing.ipc");
int total = 0;
while (1) {
// Tell the router we're ready for work
s_send (worker, "ready");
// Get workload from router, until finished
std::string workload = s_recv (worker);
int finished = (workload.compare("END") == 0);
if (finished) {
std::cout << "Processed: " << total << " tasks" << std::endl;
break;
}
total++;
// Do some random work
s_sleep(within (100) + 1);
}
return (NULL);
}
void replay(void *arg) {
void *slave = zmq_socket(arg, ZMQ_REQ);
/*
if (done % 2) {
zmq_connect (slave, "tcp://localhost:5562");
}
else {
zmq_connect (slave, "tcp://localhost:5563");
}*/
zmq_connect (slave, "tcp://localhost:5562");
char *string;
char buf[1024];
sprintf(buf, "%d", rand());
s_send(slave, buf);
string = s_recv(slave);
if (strcmp(string , buf) != 0) {
debug_puts("ERROR");
}
free(string);
pthread_mutex_lock(&lock);
done++;
pthread_mutex_unlock(&lock);
zmq_close(slave);
}
int main(int argc, char **argv)
{
threadpool_t *pool;
int i, k, ret=0;
void *slave[SLAVE_NUM];
char *string;
void *context = zmq_init(1);
pthread_mutex_init(&lock, NULL);
pool = threadpool_init(THREAD, QUEUE, 0);
fprintf(stderr, "Pool started with %d threads and "
"queue size of %d\n", THREAD, QUEUE);
if (!pool) {
return -1;
}
for (i = 0; i < 10; i++) {
/*k = i % 2;
if (k!=0 && k!=1) {
ret = -100;
break;
}*/
ret = threadpool_add(pool, &replay, context, 0);
if (ret) {
break;
}
pthread_mutex_lock(&lock);
tasks++;
pthread_mutex_unlock(&lock);
}
fprintf(stderr, "RET: %d Added %d tasks\n", ret, tasks);
while(tasks / 2 > done) {
sleep(1);
}
fprintf(stderr, "Did %d tasks before shutdown\n", done);
fprintf(stderr, "Did %d tasks\n", done);
slave[0] = zmq_socket (context, ZMQ_REQ);
zmq_connect (slave[0], "tcp://localhost:5562");
/*
slave[1] = zmq_socket (context, ZMQ_REQ);
zmq_connect (slave[1], "tcp://localhost:5563");
*/
for (i = 0; i < SLAVE_NUM; i++) {
s_send(slave[i], "END");
string = s_recv(slave[i]);
free(string);
zmq_close(slave[i]);
}
zmq_term(context);
threadpool_destroy(pool, 0);
return 0;
}
int
query_users (void *ctx, char *filter)
{
assert(ctx);
assert(filter);
console_log("Sending query users request...\n");
void *sock = zmq_socket(ctx, ZMQ_REQ);
zmq_connect(sock, "tcp://127.0.0.1:5555");
char cmd_msg[250]; //$$ Longer than length will crash
sprintf(cmd_msg, "users\n%s", filter);
int num_bytes_sent = s_send(sock, cmd_msg);
if (num_bytes_sent == -1) {
console_log("Error sending query users request\n");
zmq_close(sock);
return -1;
}
console_log("Waiting for query users reply...\n");
char *reply_msg = s_recv(sock);
if (reply_msg != NULL) {
console_log("Received reply: '%s'\n", reply_msg);
free(reply_msg);
}
zmq_close(sock);
return 0;
}
int
login (void *ctx, char *username, char *ipaddr)
{
assert(ctx);
assert(username);
assert(ipaddr);
assert(strlen(username) > 0);
assert(strlen(ipaddr) > 0);
console_log("Sending login request...\n");
void *sock = zmq_socket(ctx, ZMQ_REQ);
zmq_connect(sock, "tcp://127.0.0.1:5555");
char cmd_msg[250]; //$$ Longer than length will crash
sprintf(cmd_msg, "login\n%s\n%s", username, ipaddr);
int num_bytes_sent = s_send(sock, cmd_msg);
if (num_bytes_sent == -1) {
console_log("Error sending login request\n");
zmq_close(sock);
return -1;
}
console_log("Waiting for login reply...\n");
char *reply_msg = s_recv(sock);
if (reply_msg != NULL) {
console_log("Received reply: '%s'\n", reply_msg);
free(reply_msg);
}
zmq_close(sock);
return 0;
}
int main (void)
{
void *context = zmq_ctx_new ();
// Socket to talk to clients
void *responder = zmq_socket (context, ZMQ_REP);
zmq_connect (responder, "tcp://localhost:5560");
while (true) {
// Wait for next request from client
char *string = s_recv (responder);
printf ("Received request: [%s]\n", string);
free (string);
// Do some 'work'
sleep (1);
// Send reply back to client
s_send (responder, "World");
}
// We never get here but clean up anyhow
zmq_close (responder);
zmq_ctx_destroy (context);
return 0;
}
int main() {
// Prepare our context and publisher
zmq::context_t context(1);
zmq::socket_t publisher(context, ZMQ_REP);
publisher.bind("tcp://*:5556");
// Create the fake walk
std::string walk[800];
int i;
for (i = 0; i < 800; i++) {
walk[i] = std::to_string(i) + " " + std::to_string(i);
}
i = 0;
while (true) {
// Just repeat the walk
if (i >= 800) i = 0;
// Send envelope
s_sendmore(publisher, "pos");
s_send(publisher, walk[i]);
// Synchronize with client
usleep(10);
i++;
}
return 0;
}
static void *
zap_handler (void *zap)
{
char *version = s_recv (zap);
char *sequence = s_recv (zap);
char *domain = s_recv (zap);
char *address = s_recv (zap);
char *mechanism = s_recv (zap);
char *client_key = s_recv (zap);
assert (streq (version, "1.0"));
assert (streq (mechanism, "CURVE"));
s_sendmore (zap, version);
s_sendmore (zap, sequence);
s_sendmore (zap, "200");
s_sendmore (zap, "OK");
s_sendmore (zap, "anonymous");
s_send (zap, "");
free (version);
free (sequence);
free (domain);
free (address);
free (mechanism);
free (client_key);
int rc = zmq_close (zap);
assert (rc == 0);
return NULL;
}
int main (void)
{
void *context = zmq_ctx_new ();
void *worker = zmq_socket (context, ZMQ_DEALER);
s_set_id (worker); // Set a printable identity
zmq_connect (worker, "tcp://localhost:5671");
int total = 0;
while (1) {
// Tell the broker we're ready for work
s_sendmore (worker, "");
s_send (worker, "Hi Boss");
// Get workload from broker, until finished
// free (s_recv (worker)); // Envelope delimiter
// char *workload = s_recv (worker);
// int finished = (strcmp (workload, "Fired!") == 0);
// free (workload);
// if (finished) {
// printf ("Completed: %d tasks\n", total);
// break;
// }
total++;
// Do some random work
s_sleep (randof (500) + 1);
}
zmq_close (worker);
zmq_ctx_destroy (context);
return 0;
}
int main (void)
{
// Prepare our context and publisher
void *context = zmq_ctx_new ();
void *publisher = zmq_socket (context, ZMQ_PUB);
int rc = zmq_bind (publisher, "tcp://*:5556");
assert (rc == 0);
// Initialize random number generator
srandom ((unsigned) time (NULL));
while (1) {
// Get values that will fool the boss
int zipcode, temperature, relhumidity;
zipcode = randof (100000);
temperature = randof (215) - 80;
relhumidity = randof (50) + 10;
// Send message to all subscribers
char update [20];
sprintf (update, "%05d %d %d", zipcode, temperature, relhumidity);
printf ("%05d %d %d \n", zipcode, temperature, relhumidity);
s_send (publisher, update);
}
zmq_close (publisher);
zmq_ctx_destroy (context);
return 0;
}
int main (void)
{
std::cout << "starting client..."<<std::endl;
// Prepare our context and socket
context = new zmq::context_t(1);
socket = new zmq::socket_t(*context, ZMQ_REQ);
std::cout << "Connecting to hello world server…" << std::endl;
try {
socket->connect ("tcp://localhost:5555");
}
catch (zmq::error_t error) {
std::cout << "Error connecting to address " << std::endl;
std::cout << error.what();
cleanUp();
exit(1);
}
// Do 10 requests, waiting each time for a response
for (int request_nbr = 0; request_nbr != 10; request_nbr++) {
// ask for the depth map
s_send(*socket, "getDepthmap");
// receive result
std::string requestResult = s_recv(*socket);
uint8_t *depthMap = (uint8_t *) strdup(requestResult.c_str());
}
cleanUp();
return 0;
}
int main()
{
void *ctx, *pub;
pthread_t pid;
ctx = zmq_init(1);
pub = zmq_socket(ctx, ZMQ_PUB);
zmq_bind(pub, "inproc://in-pub");
zmq_bind(pub, "tcp://127.0.0.1:8888");
pthread_create(&pid, NULL, sub_thread, ctx);
int i = 0;
printf("begin pub!\n");
while (1)
{
char msg[80];
sprintf(msg, "num %d", i++);
s_send(pub, msg);
sleep(2);
}
zmq_close(pub);
zmq_term(ctx);
return 0;
}
int main (int argc, char *argv[])
{
void *context = zmq_init (1);
// Socket to receive messages on
void *receiver = zmq_socket (context, ZMQ_PULL);
zmq_connect (receiver, "tcp://localhost:5557");
// Socket to send messages to
void *sender = zmq_socket (context, ZMQ_PUSH);
zmq_connect (sender, "tcp://localhost:5558");
// Process tasks forever
while (1) {
char *string = s_recv (receiver);
// Simple progress indicator for the viewer
fflush (stdout);
printf ("%s.", string);
// Do the work
struct timespec t = { 0, atoi (string) * 1000000 };
nanosleep (&t, NULL);
free (string);
// Send results to sink
s_send (sender, "");
}
zmq_close (receiver);
zmq_close (sender);
zmq_term (context);
return 0;
}
int main (void)
{
printf ("Connecting to math server…\n");
void *context = zmq_ctx_new ();
void *requester = zmq_socket (context, ZMQ_REQ);
zmq_connect (requester, "tcp://localhost:5555");
srand(time(NULL));
int request_nbr;
for (request_nbr = 0; request_nbr < 1000; request_nbr++) {
char buffer [10];
int a = randof(30);
int b = randof(30);
printf ("Sending (%d, %d)…\n", a, b);
char to_send[100];
sprintf(to_send, "%d %d", a, b);
s_send(requester, to_send);
char* ret = s_recv(requester);
int sum = atoi(ret);
printf("%d + %d = %d\n", a, b, sum);
free(ret);
}
zmq_close (requester);
zmq_ctx_destroy (context);
return 0;
}