opensolaris man page for sigpending

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(5) 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(5), standards(5)

SunOS 5.11							    28 Dec 1996 						     sigpending(2)