sigpending

sigpending - examine pending signals

#include <signal.h> I int sigpending(sigset_t * set );

R 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 R set .

R sigpending () returns 0 on success and -1 on error.

EFAULT

POSIX.1-2001.

See sigsetops(3) for details on manipulating signal sets.

In versions of glibc up to and including 2.2.1, there is a bug in the wrapper function for R sigpending () which means that information about pending real-time signals is not correctly returned.

kill(2), sigaction(2), signal(2), sigprocmask(2), sigsuspend(2), sigsetops(3), signal(7)