GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
ZMQ_CTX_GET(3) 0MQ Manual ZMQ_CTX_GET(3)

zmq_ctx_get - get context options

int zmq_ctx_get (void *context, int option_name );

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:

The ZMQ_IO_THREADS argument returns the size of the 0MQ thread pool for this context.

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

The ZMQ_MAX_MSGSZ argument returns the maximum size of a message allowed for this context. Default value is INT_MAX.

The ZMQ_SOCKET_LIMIT argument returns the largest number of sockets that zmq_ctx_set(3) will accept.

The ZMQ_IPV6 argument returns the IPv6 option for the context.

The ZMQ_BLOCKY argument returns 1 if the context will block on terminate, zero if the "block forever on context termination" gambit was disabled by setting ZMQ_BLOCKY to false on all new contexts.

The ZMQ_MSG_T_SIZE argument returns the size of the zmq_msg_t structure at runtime, as defined in the include/zmq.h public header. This is useful for example for FFI bindings that can’t simply do a sizeof(). NOTE: in DRAFT state, not yet available in stable releases.

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.

EINVAL
The requested option option_name is unknown.

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);
Switching off the context deadlock gambit.
zmq_ctx_set (ctx, ZMQ_BLOCKY, false);

zmq_ctx_set(3) zmq(7)

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.
12/13/2017 0MQ 4.2.3

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.