libzmq/doc/zmq_ctx_term.adoc

= zmq_ctx_term(3)


== NAME
zmq_ctx_term - terminate a 0MQ context


== SYNOPSIS
*int zmq_ctx_term (void '*context');*


== DESCRIPTION
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 xref:zmq_setsockopt.adoc[zmq_setsockopt]

This function replaces the deprecated functions xref:zmq_term.adoc[zmq_term] and
xref:zmq_ctx_destroy.adoc[zmq_ctx_destroy]


== 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.


== ERRORS
*EFAULT*::
The provided 'context' was invalid.
*EINTR*::
Termination was interrupted by a signal. It can be restarted if needed.


== SEE ALSO
* xref:zmq.adoc[zmq]
* xref:zmq_init.adoc[zmq_init]
* xref:zmq_close.adoc[zmq_close]
* xref:zmq_setsockopt.adoc[zmq_setsockopt]


== AUTHORS
This page was written by the 0MQ community. To make a change please
read the 0MQ Contribution Policy at <https://zeromq.org/how-to-contribute/>.