[zeromq-dev] assertion failed on zsocket_connect with ZMQ_REQ

[Pieter Hintjens]

zsocket_connect does not block. It returns -1 if the endpoint is
invalid, which presumably it is. Could you tell us what the value of
'addr' is ?

On Tue, May 19, 2015 at 9:40 AM, Bachmair Florian - flexSolution GmbH
<florian.bachmair at flexsolution.eu> wrote:
> hi!
>
> Sometimes I get an assertion failed in my code.
> Why is this? shouldn't it block, till a connection is established?
>
>
>
> NIEXPORT jstring JNICALL Java_eu_flexsolution_core_JNI_1zeromq_request(
>         JNIEnv *env, jobject object, jstring address, jstring timestamp,
>         jstring format, jstring command, jstring message) {
>     const char* addr = (*env)->GetStringUTFChars(env, address, 0);
>     const char* ts = (*env)->GetStringUTFChars(env, timestamp, 0);
>     const char* f = (*env)->GetStringUTFChars(env, format, 0);
>     const char* cmd = (*env)->GetStringUTFChars(env, command, 0);
>     const char* msg = (*env)->GetStringUTFChars(env, message, 0);
>
>     printf("REQ:%s:%s:%s:%s:%s\n", addr,cmd, msg, f, ts);
>     fflush(stdout);
>     void *req = zsocket_new(context, ZMQ_REQ);
>     int rc = zsocket_connect(req, "%s", addr);
>     assert(rc == 0);
>     s_sendmore(req, ts);
>     s_sendmore(req, f);
>     s_sendmore(req, cmd);
>     s_send(req, msg);
>
>     char* reply = s_recv(req);
>     printf("reply: %s\n", reply);
>     fflush(stdout);
>
>     (*env)->ReleaseStringUTFChars(env, timestamp, ts);
>     (*env)->ReleaseStringUTFChars(env, format, f);
>     (*env)->ReleaseStringUTFChars(env, message, msg);
>
>     jstring ret = (*env)->NewStringUTF(env, reply);
>     return ret;
> }
>
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