zmq_ctx_new(3)

zmq_ctx_new3

Create new 0mq context

Usage

void *zmq_ctx_new ();

Overview

The zmq_ctx_new() function creates a new 0MQ context.

This function replaces the deprecated function zmq_init(3).

Thread safety. A 0MQ context is thread safe and may be shared among as many application threads as necessary, without any additional locking required on the part of the caller.

Return value

The zmq_ctx_new() function shall return an opaque handle to the newly created context if successful. Otherwise it shall return NULL and set errno to one of the values defined below.

Errors

EMFILE

The limit on the total number of open files has been reached and it wasn’t possible to create a new context.

EMFILE

The limit on the total number of open files in system has been reached and it wasn’t possible to create a new context.

Releases

7 releases since Debian 8 (Jessie); the text changed 6 times.

  1. 8
  2. 9
  3. 10
  4. 11
  5. 12
  6. 13
  7. Arch

Authors

This page was written by the 0MQ community. To make a change please read the 0MQ Contribution Policy at http://www.zeromq.org/docs:contributing.

From zeromq 4.3.5-3 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.