# 2.11BSD#431 - /usr/man/cat3/sigsetops.0

    SIGSETOPS(3)	    UNIX Programmer's Manual	     SIGSETOPS(3)

    NAME
         sigemptyset, sigfillset, sigaddset, sigdelset, sigismember -
         manipulate signal sets

    SYNOPSIS
         #include <signal.h>

         sigemptyset(set)
         sigset_t *set;

         sigfillset(set)
         sigset_t *set;

         sigaddset(set, signo)
         sigset_t *set;
         int signo;

         sigdelset(set, signo)
         sigset_t *set;
         int signo;

         sigismember(set, signo)
         sigset_t *set;
         int signo;

    DESCRIPTION
         These functions manipulate signal sets stored in a sigset_t
         . Either sigemptyset or sigfillset must be called for every
         object of type sigset_t before any other use of the object.

         The sigemptyset function initializes a signal set to be
         empty.

         The sigfillset function initializes a signal set to contain
         all signals.

         The sigaddset function adds the specified signal signo to
         the signal set.

         The sigdelset function deletes the specified signal signo
         from the signal set.

         The sigismember function returns whether a specified signal
         signo is contained in the signal set.

         These functions are provided as macros in the include file
         <signal.h>.  Actual functions are available if their names
         are undefined (with #undef name).

    RETURN VALUES
         The sigismember function returns 1 if the signal is a member
         of the set, 0 otherwise.  The other functions return 0.

    Printed 11/26/99	September 3, 1997			1

    SIGSETOPS(3)	    UNIX Programmer's Manual	     SIGSETOPS(3)

    ERRORS
         Currently no errors are detected.

    SEE ALSO
         kill(2), sigaction(2), sigsuspend(2)

    STANDARDS
         These functions are defined by IEEE Std1003.1-1988
         (``POSIX'').

    Printed 11/26/99	September 3, 1997			2

Generated: 2016-12-26 | Generated by man2html V0.25 page hit count: 316 |