NAME

sigpending − examine pending signals

SYNOPSIS

#include <signal.h>

int sigpending (set)
sigset_t ∗set;

DESCRIPTION

The POSIX sigpending function retrieves the set of signals that have been sent to the calling process but are being blocked from delivery by the calling process’s signal mask.  The pending signals are stored in the space pointed to by the argument set.

RETURN VALUE

Upon successful completion, a value of zero is returned.  Otherwise, a value of −1 is returned and errno is set to indicate the error. 

ERRORS

If the following condition occurs, the sigpending function will return −1 and set errno to the corresponding value:

[EFAULT] set points to an invalid address. 

SEE ALSO

sigaction(2), sigsuspend(2), sigprocmask(2), sigsetops(3C), signal(5). 

CX/UX Programmer’s Reference Manual