sigpending
—
get pending signals
Standard C Library (libc, -lc)
#include <signal.h>
int
sigpending
(sigset_t
*set);
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 they are in transition before delivery (although the latter case is
not normally detectable).
A 0 value indicates that the call succeeded. A -1 return value indicates an
error occurred and errno is set to indicate the reason.
sigpending
() will fail if:
- [
EFAULT
]
- set specifies an invalid address.
The sigpending
function conforms to
IEEE Std 1003.1-1990 (“POSIX.1”).