mq_getsetattr − get/set message queue attributes


     , struct mq_attr *int mq_getsetattr(mqd_t mqdes );
struct mq_attr *oldattr

     There is no glibc wrapper for this system call; see

Do not use this system call.

     This is the low‐level system call used to implement and
For an explanation of how this system call operates, see the
description of

This interface is nonstandard; avoid its use.

Glibc does not provide a wrapper for this system call; call
it using (Actually, never call it unless you are writing a C

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