sgetmask, ssetmask — manipulation of signal mask (obsolete)
|There are no glibc wrappers for these system calls; see NOTES.|
These system calls are obsolete. Do not use them; use sigprocmask(2) instead.
sgetmask() returns the
signal mask of the calling process.
ssetmask() sets the signal
mask of the calling process to the value given in
newmask. The previous signal
mask is returned.
successfully returns the signal mask.
ssetmask() always succeeds, and returns the
previous signal mask.
Since Linux 3.16, support for these system calls is
optional, depending on whether the kernel was built with the
Glibc does not provide wrappers for these obsolete system calls; in the unlikely event that you want to call them, use syscall(2).
These system calls are unaware of signal numbers greater than 31 (i.e., real-time signals).
These system calls do not exist on x86-64.
It is not possible to block
This page is part of release 4.07 of the Linux
man-pages project. A
description of the project, information about reporting bugs,
and the latest version of this page, can be found at
Copyright (c) 2007 by Michael Kerrisk <mtk.manpagesgmail.com>
Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are
preserved on all copies.
Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided that the
entire resulting derived work is distributed under the terms of a
permission notice identical to this one.
Since the Linux kernel and libraries are constantly changing, this
manual page may be incorrect or out-of-date. The author(s) assume no
responsibility for errors or omissions, or for damages resulting from
the use of the information contained herein. The author(s) may not
have taken the same level of care in the production of this manual,
which is licensed free of charge, as they might when working
Formatted or processed versions of this manual, if unaccompanied by
the source, must acknowledge the copyright and authors of this work.