SIGSETOPS
NAME SYNOPSIS DESCRIPTION RETURN VALUE ERRORS CONFORMING TO SEE ALSO
sigemptyset, sigfillset, sigaddset, sigdelset, sigismember - POSIX signal set operations.
#include
__int sigemptyset(sigset_t
__int sigfillset(sigset_t
int sigaddset(sigset_t *set, int signum);
int sigdelset(sigset_t *set, int signum);
int sigismember(const sigset_t *set, int signum);
The sigsetops(3) functions allow the manipulation of POSIX signal sets.
sigemptyset initializes the signal set given by set to empty, with all signals excluded from the set.
sigfillset initializes set to full, including all signals.
sigaddset and sigdelset add and delete respectively signal signum from set.
sigismember tests whether signum is a member of set.
sigemptyset, sigfullset, sigaddset and sigdelset return 0 on success and -1 on error.
sigismember returns 1 if signum is a member of set, 0 if signum is not a member, and -1 on error.
EINVAL
sig is not a valid signal.
POSIX
sigaction(2), sigpending(2), sigprocmask(2), sigsuspend(2)
10 pages link to sigsetops(3):