RAISE(3) Linux Programmer's Manual RAISE(3)NAMEraise - send a signal to the caller
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 VALUEraise() 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 │
└──────────┴───────────────┴─────────┘
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C89, C99.
NOTES
Since version 2.3.3, glibc implements raise() by calling tgkill(2), if
the kernel supports that system call. Older glibc versions implemented
raise() using kill(2).
SEE ALSOgetpid(2), kill(2), sigaction(2), signal(2), pthread_kill(3), signal(7)COLOPHON
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GNU 2015-08-08 RAISE(3)