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



PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (con-
       sult the corresponding Linux manual page for details of Linux behavior), or the  interface  may  not  be  implemented  on
       Linux.

NAME
       siglongjmp - non-local goto with signal handling

SYNOPSIS
       #include <setjmp.h>

       void siglongjmp(sigjmp_buf env, int val);


DESCRIPTION
       The siglongjmp() function shall be equivalent to the longjmp() function, except as follows:

        * References to setjmp() shall be equivalent to sigsetjmp().

        * The  siglongjmp()  function  shall  restore the saved signal mask if and only if the env argument was initialized by a
          call to sigsetjmp() with a non-zero savemask argument.

RETURN VALUE
       After siglongjmp() is completed, program execution shall continue as if the corresponding invocation of  sigsetjmp()  had
       just returned the value specified by val. The siglongjmp() function shall not cause sigsetjmp() to return 0; if val is 0,
       sigsetjmp() shall return the value 1.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       The distinction between setjmp() or longjmp() and sigsetjmp() or siglongjmp() is only significant for programs which  use
       sigaction(), sigprocmask(), or sigsuspend().

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       longjmp(),  setjmp(),  sigprocmask(),  sigsetjmp(),  sigsuspend(),  the  Base Definitions volume of IEEE Std 1003.1-2001,
       <setjmp.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, Copy-
       right (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.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                                SIGLONGJMP(3P)