debian man page for zmq_init

ZMQ_INIT(3)							    0MQ Manual							       ZMQ_INIT(3)

NAME
       zmq_init - initialise 0MQ context

SYNOPSIS
       void *zmq_init (int io_threads);

DESCRIPTION
       The zmq_init() function initialises a 0MQ context.

       The io_threads argument specifies the size of the 0MQ thread pool to handle I/O operations. If your application is using only the inproc
       transport for messaging you may set this to zero, otherwise set it to at least one.

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

ERRORS
       EINVAL
	   An invalid number of io_threads was requested.

SEE ALSO
       zmq(7) zmq_term(3)

AUTHORS
       This manual page was written by the 0MQ community.

0MQ 2.2.0							    04/04/2012							       ZMQ_INIT(3)