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.
NAMEsiglongjmp — 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() func‐
tion, 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 sig‐
longjmp() is only significant for programs which use sigaction(), sig‐
procmask(), or sigsuspend().
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSOlongjmp(), pthread_sigmask(), setjmp(), sigsetjmp(), sigsuspend()
The Base Definitions volume of POSIX.1‐2008, <setjmp.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
cal and Electronics Engineers, Inc and The Open Group. (This is
POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/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.ker‐
nel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 SIGLONGJMP(3P)
