siglongjmp(3p) — Linux manual page

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 (consult 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(3p), pthread_sigmask(3p), setjmp(3p), sigsetjmp(3p),
       sigsuspend(3p)

       The Base Definitions volume of POSIX.1‐2017, setjmp.h(0p)

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 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 .

       Any typographical or formatting errors that appear in this page
       are most likely to have been introduced during the conversion of
       the source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group               2017                    SIGLONGJMP(3P)

Pages that refer to this page: setjmp.h(0p), ftw(3p), longjmp(3p), _longjmp(3p), sigsetjmp(3p)

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