mq_getsetattr

mq_getsetattr - get/set message queue attributes

#include <sys/types.h>
#include <mqueue.h>
 I mqd_t mq_getsetattr(mqd_t  mqdes , struct mq_attr * newattr ,
I                  struct mq_attr * oldattr );

Do not use this system call. This is the low-level system call used to implement mq_getattr(3) and mq_setattr(3). For an explanation of how this system call operates, see the description of mq_setattr(3).

This interface is non-standard; avoid its use.

Glibc does not provide a wrapper for this system call; call it using syscall(2). (Actually, never call it unless you are writing a libc!)

mq_getattr(3), mq_overview(7)