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raise(3) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | STANDARDS | HISTORY | SEE ALSO | COLOPHON

raise(3)                Library Functions Manual                raise(3)

NAME         top

       raise - send a signal to the caller

LIBRARY         top

       Standard C library (libc, -lc)

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 │
       └─────────────────────────────────────┴───────────────┴─────────┘

STANDARDS         top

       C11, POSIX.1-2008.

HISTORY         top

       POSIX.1-2001, C89.

       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         top

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

COLOPHON         top

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-
       to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to
       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02                       raise(3)

Pages that refer to this page: sigaction(2)signal(2)sigprocmask(2)abort(3)gsignal(3)pthread_kill(3)sigset(3)sigvec(3)signal(7)signal-safety(7)


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