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(P)