zmq_ctx_get(3) - Linux man page
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: Set maximum number of sockets
- The ZMQ_MAX_SOCKETS argument returns the maximum number of sockets allowed for this 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_get (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 0MQ manual page was written by Pieter Hintjens <ph@imatix.com [1] >