SIGPENDING(2) |
FreeBSD System Calls Manual |
SIGPENDING(2) |
NAME
sigpending —
get pending signals
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include < signal.h>
int
sigpending( sigset_t *set);
DESCRIPTION
The
sigpending() system call returns a mask of the signals pending for delivery to the calling thread or 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
The
sigpending() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable
errno is set to indicate the error.
ERRORS
The
sigpending() system call will fail if:
-
[
EFAULT]
-
The
set argument specified an invalid address.
STANDARDS
The
sigpending() system call is expected to conform to IEEE Std 1003.1-1990 (“POSIX.1”).