mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-12 18:40:27 +01:00
67e02ca8bc
contributors and doesn't reflect the real process. I've taken out all named authors and referred to the contribution policy. Hopefully this will improve the contributions to the man pages.
88 lines
2.1 KiB
Plaintext
88 lines
2.1 KiB
Plaintext
zmq_ctx_set(3)
|
|
==============
|
|
|
|
|
|
NAME
|
|
----
|
|
|
|
zmq_ctx_set - set context options
|
|
|
|
|
|
SYNOPSIS
|
|
--------
|
|
*int zmq_ctx_set (void '*context', int 'option_name', int 'option_value');*
|
|
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
The _zmq_ctx_set()_ function shall set the option specified by the
|
|
'option_name' argument to the value of the 'option_value' argument.
|
|
|
|
The _zmq_ctx_set()_ function accepts the following options:
|
|
|
|
|
|
ZMQ_IO_THREADS: Set number of I/O threads
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
The 'ZMQ_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. This option only applies before creating any sockets on the
|
|
context.
|
|
|
|
[horizontal]
|
|
Default value:: 1
|
|
|
|
ZMQ_MAX_SOCKETS: Set maximum number of sockets
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
The 'ZMQ_MAX_SOCKETS' argument sets the maximum number of sockets allowed
|
|
on the context.
|
|
|
|
[horizontal]
|
|
Default value:: 1024
|
|
|
|
ZMQ_IPV6: Set IPv6 option
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
The 'ZMQ_IPV6' argument sets the IPv6 value for all sockets created in
|
|
the context from this point onwards. A value of `1` means IPv6 is
|
|
enabled, while `0` means the socket will use only IPv4. When IPv6 is
|
|
enabled, a socket will connect to, or accept connections from, both
|
|
IPv4 and IPv6 hosts.
|
|
|
|
[horizontal]
|
|
Default value:: 0
|
|
|
|
|
|
RETURN VALUE
|
|
------------
|
|
The _zmq_ctx_set()_ function returns zero 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
|
|
--------
|
|
linkzmq:zmq_ctx_get[3]
|
|
linkzmq: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>.
|