raise
Section: C Library Functions (3)
Updated: 2022-12-29
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NAME
raise - send a signal to the caller
LIBRARY
Standard C library
(libc, -lc)
SYNOPSIS
#include <signal.h>
int raise(int sig);
DESCRIPTION
The
raise()
function sends a signal to the calling process or thread.
In a single-threaded program it is equivalent to
kill(getpid(), sig);
In a multithreaded program it is equivalent to
pthread_kill(pthread_self(), sig);
If the signal causes a handler to be called,
raise()
will return only after the signal handler has returned.
RETURN VALUE
raise()
returns 0 on success, and nonzero for failure.
ATTRIBUTES
For an explanation of the terms used in this section, see
attributes(7).
| Interface | Attribute | Value
|
|
raise()
| Thread safety | MT-Safe
|
STANDARDS
POSIX.1-2001, POSIX.1-2008, C99.
NOTES
Since glibc 2.3.3,
raise()
is implemented by calling
tgkill(2),
if the kernel supports that system call.
Older glibc versions implemented
raise()
using
kill(2).
SEE ALSO
getpid(2),
kill(2),
sigaction(2),
signal(2),
pthread_kill(3),
signal(7)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ATTRIBUTES
-
- STANDARDS
-
- NOTES
-
- SEE ALSO
-
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