SIGPENDING(2) System Calls 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
calling 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(7) for descriptions of the following attributes:
+--------------------+-------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-------------------+
|Interface Stability | Standard |
+--------------------+-------------------+
|MT-Level | Async-Signal-Safe |
+--------------------+-------------------+
SEE ALSO
sigaction(2),
sigprocmask(2),
sigsetops(3C),
attributes(7),
standards(7) December 28, 1996 SIGPENDING(2)
