RAISE
Section: POSIX Programmer's Manual (3P)
Updated: 2017
Page Index
PROLOG
This manual page is part of the POSIX Programmer's Manual.
The Linux implementation of this interface may differ (consult
the corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
NAME
raise
--- send a signal to the executing process
SYNOPSIS
#include <signal.h>
int raise(int sig);
DESCRIPTION
The functionality described on this reference page is aligned with the
ISO C standard. Any conflict between the requirements described here and the
ISO C standard is unintentional. This volume of POSIX.1-2017 defers to the ISO C standard.
The
raise()
function shall send the signal
sig
to the executing
thread or process.
If a signal handler is called, the
raise()
function shall not return until after the signal handler does.
The effect of the
raise()
function shall be equivalent to calling:
-
pthread_kill(pthread_self(), sig);
RETURN VALUE
Upon successful completion, 0 shall be returned. Otherwise, a
non-zero value shall be returned
and
errno
shall be set to indicate the error.
ERRORS
The
raise()
function shall fail if:
- EINVAL
-
The value of the
sig
argument is an invalid signal number.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
The term ``thread'' is an extension to the ISO C standard.
FUTURE DIRECTIONS
None.
SEE ALSO
kill(),
sigaction()
The Base Definitions volume of POSIX.1-2017,
<signal.h>,
<sys_types.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1-2017, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, 2018 Edition,
Copyright (C) 2018 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group.
In the event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online at
http://www.opengroup.org/unix/online.html .
Any typographical or formatting errors that appear
in this page are most likely
to have been introduced during the conversion of the source files to
man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .