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Name

sigpending - examine signals that are blocked and pending

Synopsis

#include <signal.h>

int sigpending(sigset_t *set);

MT-Level

Async-Signal-Safe

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.

Return Values

On success, sigpending() returns zero. On failure, it returns -1 and sets errno to indicate the error.

Errors

sigpending() fails if the following is true:

EFAULT
set points to an illegal address.

See Also

sigaction(2) , sigprocmask(2) , sigsetops(3C)

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