NAME

sigpending — get pending signals

SYNOPSIS

#include <signal.h>

int
sigpending(sigset_t *set);

DESCRIPTION

The sigpending() function returns a mask of the signals pending for delivery to the calling process in the location indicated by set. Signals may be pending because they are currently masked, or transiently before delivery (although the latter case is not normally detectable).

RETURN VALUES

Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

ERRORS

The sigpending() function does not currently detect any errors.

SEE ALSO

sigaction(2), sigprocmask(2), sigaddset(3)

STANDARDS

The sigpending() function is defined by IEEE Std 1003.1-2008 (“POSIX.1”).