sigpending(2) SYSTEM CALLS sigpending(2)
NAME
sigpending - examine signals that are blocked and pending
SYNOPSIS
#include <signal.h>
int sigpending(sigsett *set);
DESCRIPTION
The sigpending function retrieves those signals that have
been sent to the calling process but are being blocked from
delivery by the calling process's signal mask. The signals
are stored in the space pointed to by the argument set.
sigpending fails if the following is true:
EFAULT The set argument points outside the process's
allocated address space.
SEE ALSO
sigaction(2), sigprocmask(2), sigsetops(3C).
DIAGNOSTICS
On success, sigpending returns zero. On failure, it returns
-1 and sets errno to indicate the error.
1