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sigpending(2) [opendarwin man page]

SIGPENDING(2)						      BSD System Calls Manual						     SIGPENDING(2)

NAME
sigpending -- get pending signals SYNOPSIS
#include <signal.h> int sigpending(sigset_t *set); DESCRIPTION
The sigpending function returns a mask of the signals pending for delivery to the calling process in the location indicated by set. Signals may be pending because they are currently masked, or transiently before delivery (although the latter case is not normally detectable). RETURN VALUES
A 0 value indicated that the call succeeded. A -1 return value indicates an error occurred and errno is set to indicated the reason. ERRORS
The sigpending function does not currently detect any errors. SEE ALSO
sigaction(2), sigprocmask(2) STANDARDS
The sigpending function is defined by IEEE Std 1003.1-1988 (``POSIX.1''). BSD
January 12, 1994 BSD

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SIGPENDING(2)						     Linux Programmer's Manual						     SIGPENDING(2)

NAME
sigpending - examine pending signals SYNOPSIS
#include <signal.h> int sigpending(sigset_t *set); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): sigpending(): _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE DESCRIPTION
sigpending() returns the set of signals that are pending for delivery to the calling thread (i.e., the signals which have been raised while blocked). The mask of pending signals is returned in set. RETURN VALUE
sigpending() returns 0 on success and -1 on error. ERRORS
EFAULT set points to memory which is not a valid part of the process address space. CONFORMING TO
POSIX.1-2001. NOTES
See sigsetops(3) for details on manipulating signal sets. The set of signals that is pending for a thread is the union of the set of signals that is pending for that thread and the set of signals that is pending for the process as a whole; see signal(7). A child created via fork(2) initially has an empty pending signal set; the pending signal set is preserved across an execve(2). BUGS
In versions of glibc up to and including 2.2.1, there is a bug in the wrapper function for sigpending() which means that information about pending real-time signals is not correctly returned. SEE ALSO
kill(2), sigaction(2), signal(2), sigprocmask(2), sigsuspend(2), sigsetops(3), signal(7) COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2008-10-04 SIGPENDING(2)
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