NAME

       raise - 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 VALUE

       raise() returns 0 on success, and nonzero for failure.

CONFORMING TO

       C89, C99, POSIX.1-2001.

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 ALSO

       getpid(2), kill(2), sigaction(2), signal(2), pthread_kill(3), signal(7)

COLOPHON

       This page is part of release 3.54 of the Linux man-pages project.  A  description  of  the  project,  and
       information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.