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.
