NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON

RAISE(3)                  Linux Programmer's Manual                 RAISE(3)

NAME         top

       raise - send a signal to the caller

SYNOPSIS         top

       #include <signal.h>

       int raise(int sig);

DESCRIPTION         top

       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         top

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

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────┬───────────────┬─────────┐
       │Interface Attribute     Value   │
       ├──────────┼───────────────┼─────────┤
       │raise()   │ Thread safety │ MT-Safe │
       └──────────┴───────────────┴─────────┘

CONFORMING TO         top

       POSIX.1-2001, POSIX.1-2008, C89, C99.

NOTES         top

       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         top

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

COLOPHON         top

       This page is part of release 4.07 of the Linux man-pages project.  A
       description of the project, information about reporting bugs, and the
       latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

GNU                              2015-08-08                         RAISE(3)