man2/mq_getsetattr.2

   1 .\" Copyright (C) 2006 Michael Kerrisk <mtk.manpages@gmail.com>
   2 .\"
   3 .\" SPDX-License-Identifier: Linux-man-pages-copyleft
   4 .\"
   5 .TH MQ_GETSETATTR 2 2021-03-22 "Linux man-pages (unreleased)"
   6 .SH NAME
   7 mq_getsetattr \- get/set message queue attributes
   8 .SH SYNOPSIS
   9 .nf
  10 .BR "#include <mqueue.h>" "           /* Definition of " "struct mq_attr" " */"
  11 .BR "#include <sys/syscall.h>" "      /* Definition of " SYS_* " constants */"
  12 .B #include <unistd.h>
  13 .PP
  14 .BI "int syscall(SYS_mq_getsetattr, mqd_t " mqdes ,
  15 .BI "            const struct mq_attr *" newattr ", struct mq_attr *" oldattr );
  16 .fi
  17 .SH DESCRIPTION
  18 Do not use this system call.
  19 .PP
  20 This is the low-level system call used to implement
  21 .BR mq_getattr (3)
  22 and
  23 .BR mq_setattr (3).
  24 For an explanation of how this system call operates,
  25 see the description of
  26 .BR mq_setattr (3).
  27 .SH STANDARDS
  28 This interface is nonstandard; avoid its use.
  29 .SH NOTES
  30 Never call it unless you are writing a C library!
  31 .SH SEE ALSO
  32 .BR mq_getattr (3),
  33 .BR mq_overview (7)