|| Linux Programmer's Manual
NAME sigpending - examine pending signals
int sigpending(sigset_t *
Feature Test Macro Requirements for glibc (see
(): _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE
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
sigpending() returns 0 on success and -1 on error. In the event of an error,
errno is set to indicate the cause.
set points to memory which is not a valid part of the process address space.
CONFORMING TO POSIX.1-2001.
(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
A child created via
(2) initially has an empty pending signal set; the pending signal set is preserved across an
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.
COLOPHON This page is part of release 3.53 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/.