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ZMQ_CTX_GET(3)			  0MQ Manual			ZMQ_CTX_GET(3)

NAME
       zmq_ctx_get - get context options

SYNOPSIS
       int zmq_ctx_get (void *context, int option_name);

DESCRIPTION
       The zmq_ctx_get() function shall return the option specified by the
       option_name argument.

       The zmq_ctx_get() function accepts the following option names:

   ZMQ_IO_THREADS: Get number of I/O threads
       The ZMQ_IO_THREADS argument returns the size of the 0MQ thread pool for
       this context.

   ZMQ_MAX_SOCKETS: Get maximum number of sockets
       The ZMQ_MAX_SOCKETS argument returns the maximum number of sockets
       allowed for this context.

   ZMQ_IPV6: Set IPv6 option
       The ZMQ_IPV6 argument returns the IPv6 option for the context.

RETURN VALUE
       The zmq_ctx_get() function returns a value of 0 or greater if
       successful. Otherwise it returns -1 and sets errno to one of the values
       defined below.

ERRORS
       EINVAL
	   The requested option option_name is unknown.

EXAMPLE
       Setting a limit on the number of sockets.

	   void *context = zmq_ctx_new ();
	   zmq_ctx_set (context, ZMQ_MAX_SOCKETS, 256);
	   int max_sockets = zmq_ctx_get (context, ZMQ_MAX_SOCKETS);
	   assert (max_sockets == 256);

SEE ALSO
       zmq_ctx_set(3) zmq(7)

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.

0MQ 4.0.1			  03/10/2014			ZMQ_CTX_GET(3)

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