ØMQ Manual - ØMQ/4.1.5
zmq_ctx_shutdown - shutdown a ØMQ context
int zmq_ctx_shutdown (void *context);
The zmq_ctx_shutdown() function shall shutdown the ØMQ context context.
Context shutdown will cause any blocking operations currently in progress on sockets open within context to return immediately with an error code of ETERM. With the exception of zmq_close(), any further operations on sockets open within context shall fail with an error code of ETERM.
This function is optional, client code is still required to call the zmq_ctx_term(3) function to free all resources allocated by zeromq.
The zmq_ctx_shutdown() function shall return zero if successful. Otherwise it shall return -1 and set errno to one of the values defined below.
- The provided context was invalid.
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