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RAISE(3P)                  POSIX Programmer's Manual                 RAISE(3P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the  corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.
NAME
       raise - send a signal to the executing process
SYNOPSIS
       #include <signal.h>
       int raise(int sig);

DESCRIPTION
       The raise() function shall send the signal sig to the executing  thread
       or  process.  If a signal handler is called, the raise() function shall
       not return until after the signal handler does.
       If the implementation supports the Threads option, the  effect  of  the
       raise() function shall be equivalent to calling:

              pthread_kill(pthread_self(), sig);
       Otherwise,  the  effect  of the raise() function shall be equivalent to
       calling:

              kill(getpid(), sig);
RETURN VALUE
       Upon successful completion, 0 shall be returned. Otherwise, a  non-zero
       value shall be returned  and errno shall be set to indicate the error.
ERRORS
       The raise() function shall fail if:
       EINVAL The value of the sig argument is an invalid signal number.

       The following sections are informative.
EXAMPLES
       None.
APPLICATION USAGE
       None.
RATIONALE
       The term "thread" is an extension to the ISO C standard.
FUTURE DIRECTIONS
       None.
SEE ALSO
       kill(),     sigaction(),     the    Base    Definitions    volume    of
       IEEE Std 1003.1-2001, <signal.h>, <sys/types.h>
COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
       event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard
       is  the  referee document. The original Standard can be obtained online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group                  2003                            RAISE(3P)