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(),
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, 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 .