man-pages/man2/mq_getsetattr.2

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.TH MQ_GETSETATTR 2 2006-05-14 "Linux 2.6.16" "Linux Programmer's Manual"
.SH NAME
mq_getsetattr \- get/set message queue attributes
.SH SYNOPSIS
.nf
.B #include <sys/types.h>
.br
.B #include <linux/unistd.h>
.br
.B #include <errno.h>
.sp
.B "_syscall3(mqd_t, mqdes, struct mq_attr *, newattr,
.B " struct mq_attr *, oldattr);
/* Or use \fBsyscall\fP(2); see \fBintro\fP(2) */
.BI "mqd_t mq_getsetattr(mqd_t " mqdes ", struct mq_attr *" newattr ","
.BI " struct mq_attr *" oldattr );
.fi
.SH DESCRIPTION
Do not use this system call.
This is the low-level system call used to implement
.BR mq_getattr (3)
and
.BR mq_setattr (3).
For an explanation of how this system call operates,
see the description of
.BR mq_setattr (3).
.SH CONFORMING TO
This interface is non-standard; avoid its use.
.SH "SEE ALSO"
.BR mq_getattr (3),
.BR mq_overview (7)