Manpage of SGETMASK

SGETMASK

Section: Linux Programmer's Manual (2)
Updated: 2014-12-31
Index
 

NAME

sgetmask, ssetmask - manipulation of signal mask (obsolete)  

SYNOPSIS

long sgetmask(void);

long ssetmask(long newmask);

Note: There are no glibc wrappers for these system calls; see NOTES.  

DESCRIPTION

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.

The signal masks dealt with by these two system calls are plain bit masks (unlike the sigset_tused by sigprocmask(2)); use sigmask(3) to create and inspect these masks.  

RETURN VALUE

sgetmask() always successfully returns the signal mask. ssetmask() always succeeds, and returns the previous signal mask.  

ERRORS

These system calls always succeed.  

VERSIONS

Since Linux 3.16, support for these system calls is optional, depending on whether the kernel was built with the CONFIG_SGETMASK_SYSCALLoption.  

CONFORMING TO

These system calls are Linux-specific.  

NOTES

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 SIGSTOPor SIGKILL.  

SEE ALSO

sigprocmask(2), signal(7)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
VERSIONS
CONFORMING TO
NOTES
SEE ALSO

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Time: 22:27:45 GMT, June 20, 2016