c - ZeroMQ Clone Server Model 1 -


i'm new zeromq , trying understand library running sample examples in c.

currently i'm working on clone server model 1 example in c chapter 5 of zeromq documentation. have copied client , server code here. have modified programs account deprecation of class zctx. i'm using zsock.h instead. didn't include file kvsimple.c brevity.

whenever run program ( client first , server ), client enters if(){...} code-section , breaks, printing interrupted message. don't understand why case. original code using zctx can found @ client , server.

modified client code:

#include "kvsimple.h" int main (void) {     // prepare our context , updates socket     // zctx_t *ctx = zctx_new ();     zsock_t *updates = zsock_new (zmq_sub);     zsock_set_subscribe (updates, "");     zsock_connect (updates, "tcp://localhost:5556");      zhash_t *kvmap = zhash_new ();     int64_t sequence = 0;      while (true) {         kvmsg_t *kvmsg = kvmsg_recv (updates);         if (!kvmsg)              break;          //  interrupted         kvmsg_store (&kvmsg, kvmap);         sequence++;     }     printf (" interrupted\n%d messages in\n", (int) sequence);     zhash_destroy (&kvmap);     zsock_destroy (&updates);     return 0; }

modified server code 

#include "kvsimple.h" int main (void) {     // prepare our context , publisher socket     // zctx_t *ctx = zctx_new ();     zsock_t *publisher = zsock_new (zmq_pub);     zsock_bind (publisher, "tcp://*:5556");     zclock_sleep (200);      zhash_t *kvmap = zhash_new ();     int64_t sequence = 0;     srandom ((unsigned) time (null));      while (true) {          //  distribute key-value message         kvmsg_t *kvmsg = kvmsg_new (++sequence);         kvmsg_fmt_key  (kvmsg, "%d", randof (10000));         kvmsg_fmt_body (kvmsg, "%d", randof (1000000));         kvmsg_send     (kvmsg, publisher);         kvmsg_store   (&kvmsg, kvmap);     }     printf (" interrupted\n%d messages out\n", (int) sequence);     zhash_destroy (&kvmap);     zsock_destroy (&publisher);     return 0; }


Comments

Post a Comment

Popular posts from this blog

What is happening when Matlab is starting a "parallel pool"? -

running parallel cpu processes in matlab starts command parpool() according documentation , function: [creates] special job on pool of workers, , [connects] matlab client parallel pool. this function takes bit of time execute, on order of 30 seconds. in other multi-cpu paradigms openmp, parallel execution seems totally transparent -- i've never noticed behavior analogous matlab (granted i'm not experienced parallel programming). so, happening between time parpool() called , when finishes executing? takes long? parallel computing toolbox enables run matlab code in parallel using several different paradigms (e.g. jobs , tasks, parfor , spmd , parfeval , batch processing), , run either locally (parallelised across cores in local machine) or remotely (parallelised across machines in cluster - either 1 own, or 1 in cloud). in of these cases, code run on matlab workers , copies of matlab without interactive desktop. if you're intending run on remo...
Read more

angular - DownloadURL return null in below code -

when change file updated in firebase storage when try downloadurl show null. filechange(event: any) { const imagefolder: string = this.employee.id; const filelist: filelist = event.target.files; const file: file = filelist[0]; const storageref = firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file); console.log(storageref.snapshot.downloadurl); } the put() asynchronous. if want url after file uploaded have this: firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file).then((snapshot) => { storageref = snapshot.downloadurl: console.log(snapshot.downloadurl); });
Read more

php - Cannot override Laravel Spark authentication with own implementation -

during login process of laravel spark need request token of remote api. api stores exact same users , passwords laravel spark application. therefore need username , non hashed password of user during authentication process. i thought overriding authenticated method solution problem. in routes/web.php override post /login endpoint , pointing endpoint own logincontroller: <?php namespace app\http\controllers\auth; use illuminate\support\facades\log; use illuminate\http\request; use laravel\spark\http\controllers\auth\logincontroller sparklogincontroller; class logincontroller extends sparklogincontroller { /** * create new login controller instance. * * @return void */ public function __construct() { parent::__construct(); } /** * handle successful authentication attempt. * * @param request $request * @param \illuminate\contracts\auth\authenticatable $user * @return response */ public fu...
Read more