[zeromq-dev] Assertion failed: false (src/pipe.cpp:429) on disconnecting a SUB Socket.

[Bachmair Florian - flexSolution GmbH]

further output

Assertion failed: false (src/pipe.cpp:429)

#0  0x63835c6c in /home/flex/core-1.0.0/emerson2/lib/native/libzmq.so 
(zmq::zmq_abort(char const*)+0x8)
#1  0x63846718 in /home/flex/core-1.0.0/emerson2/lib/native/libzmq.so 
(zmq::pipe_t::terminate(bool)+0x84)
#2  0x63857e58 in /home/flex/core-1.0.0/emerson2/lib/native/libzmq.so 
(zmq::socket_base_t::term_endpoint(char const*)+0x19c)
#3  0x638bfc0c in /home/flex/core-1.0.0/emerson2/lib/native/libczmq.so 
(zsock_disconnect+0x48)


On 2017-05-09 07:23, Bachmair Florian - flexSolution GmbH wrote:
> Hi!
> I'm using a JNI Wrapper to use czmq.(with the latest libzmq and czmq 
> from git,compiled yesterday on an arm)
> Don't know if this is just a coincidents but this is how I reproduce 
> the error:
>
>   * start all Applications(6) (on the same host) they connect to each
>     other via TCP automatically
>   * If I restart 2 applications at the same time, they may get new
>     Ports, the other applications do recognize that(every Application
>     announces their ports via multicast) and disconnect from the old,
>     now invalid socket
>   * 1-2 of the Applications crashes with the error Assertion failed:
>     false (src/pipe.cpp:429) when they try to close the socket.
>
> Any Idea what I am doing wrong here?
>
>
> JNIEXPORT void JNICALL 
> Java_lib_zmq_ZeroMQNative_native_1disconnect(JNIEnv * env, jobject 
> object, jstring ip, jint port) {
> // ===============================================
> // Convert Java Objects to C
> // ===============================================
>     puts("debug 1");
>     fflush(stdout);
>     const char* c_ip = (*env)->GetStringUTFChars(env, ip, 0);
>     printf("debug 2: %s:%d \n",c_ip,port);
>     fflush(stdout);
> // ===============================================
> // Disconnect from tcp://ip:port
> // ===============================================
>     zsock_disconnect(subscriber, "tcp://%s:%d", c_ip, port);
>     //Assertion failed: false (src/pipe.cpp:429)
>
>     puts("debug 3");
>     fflush(stdout);
> // ===============================================
> // Free Resources
> // ===============================================
>     (*env)->ReleaseStringUTFChars(env, ip, c_ip);
>     puts("debug 4");
>     fflush(stdout);
> }
>
>
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