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



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

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(), pthread__sigmask(), setjmp(), sigsetjmp(), sigsuspend()

       The Base Definitions volume of POSIX.1-2017, <setjmp.h>

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(3)
