ZeroMQ 官方地址 :http://api.zeromq.org/4-0:zmq_ctx_get
zmq_ctx_get(3) ØMQ Manual - ØMQ/3.2.5
Name
zmq_ctx_get - 得到环境上下文的属性
Synopsis
int zmq_ctx_get (void *context, int option_name);
Description
zmq_ctx_get()函数会返回被参数option_name指定的属性值。
zmq_ctx_get()接收以下的属性名:
ZMQ_IO_THREADS :获取I/O线程的数目
ZMQ_IO_THREADS参数会返回这个context的ZMQ线程池的大小
ZMQ_MAX_SOCKETS :获取socket数量的最大值
ZMQ_MAX_SOCKETS参数返回这个context允许创建socket数量的最大值
Return value
zmq_ctx_get()函数返回0,执行成功了则返回一个正数。其它情况则返回 -1,并且设置errno为下列值。
Errors
EINVAL
请求的属性名option_name未知。
Example
给socket数量设置一个最大值。
void *context = zmq_ctx_new ();
zmq_ctx_get (context, ZMQ_MAX_SOCKETS, );
int max_sockets = zmq_ctx_get (context, ZMQ_MAX_SOCKETS); assert (max_sockets == );
See also
zmq_ctx_set(3) zmq(7)
Authors
This ØMQ manual page was written by Pieter Hintjens <ph@imatix.com>
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