zmq_ctx_term - Man Page

terminate a 0MQ context


int zmq_ctx_term (void *context);


The zmq_ctx_term() function shall destroy the 0MQ context context.

Context termination is performed in the following steps:

  1. Any blocking operations currently in progress on sockets open within context shall 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.
  2. After interrupting all blocking calls, zmq_ctx_term() shall block until the following conditions are satisfied:

    • All sockets open within context have been closed with zmq_close().
    • For each socket within context, all messages sent by the application with zmq_send() have either been physically transferred to a network peer, or the socket’s linger period set with the ZMQ_LINGER socket option has expired.

For further details regarding socket linger behaviour refer to the ZMQ_LINGER option in zmq_setsockopt(3).

This function replaces the deprecated functions zmq_term(3) and zmq_ctx_destroy(3).

Return Value

The zmq_ctx_term() 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.


Termination was interrupted by a signal. It can be restarted if needed.

See Also

zmq(7) zmq_init(3) zmq_close(3) zmq_setsockopt(3)


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Referenced By

zmq(7), zmq_close(3), zmq_ctx_new(3), zmq_ctx_shutdown(3), zmq_disconnect(3), zmq_getsockopt(3), zmq_setsockopt(3).

08/13/2020 0MQ 4.3.3 0MQ Manual