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)