raise(3) Library Functions Manual raise(3)
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 at-
tributes(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)
Linux man-pages 6.03 2022-12-29 raise(3)
Generated by dwww version 1.15 on Wed Jun 26 06:07:44 CEST 2024.