SIGPENDING(2)SIGPENDING(2)NAME
sigpending - examine signals that are blocked and pending
SYNOPSIS
#include <signal.h>
int sigpending(sigset_t *set);
DESCRIPTION
The sigpending() function retrieves those signals that have been sent
to the calling process but are being blocked from delivery by the call‐
ing process's signal mask. The signals are stored in the space pointed
to by the set argument.
RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, −1 is returned
and errno is set to indicate the error.
ERRORS
The sigpending() function will fail if:
EFAULT
The set argument points to an illegal address.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌────────────────────┬───────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼───────────────────┤
│Interface Stability │ Standard │
├────────────────────┼───────────────────┤
│MT-Level │ Async-Signal-Safe │
└────────────────────┴───────────────────┘
SEE ALSOsigaction(2), sigprocmask(2), sigsetops(3C), attributes(5), stan‐
dards(5)
Dec 28, 1996 SIGPENDING(2)