mq_getsetattr - get/set message queue attributes
#include <mqueue.h> /* Definition of struct mq_attr */
#include <sys/syscall.h> /* Definition of SYS_* constants */
int syscall(SYS_mq_getsetattr, mqd_t mqdes,
const struct mq_attr *newattr, 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 nonstandard; avoid its use.
Never call it unless you are writing a C library!
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