sighold(3) - NetBSD Manual Pages

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SIGHOLD(3)              NetBSD Library Functions Manual             SIGHOLD(3)


NAME

     sighold -- manipulate current signal mask


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <signal.h>

     int
     sighold(int sig);


DESCRIPTION

     This interface is made obsolete by sigprocmask(2).

     The sighold() function adds the signal sig to the calling process' signal
     mask.


RETURN VALUES

     If successful, the sighold() function returns 0.  Otherwise -1 is
     returned and errno is set to indicate the error.


ERRORS

     The sighold() function will fail if:

     [EINVAL]           The argument sig is not a valid signal number.


SEE ALSO

     sigprocmask(2), sigrelse(3)


STANDARDS

     The sighold() function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
     It was however marked as obsolete in the IEEE Std 1003.1-2008
     (``POSIX.1'') revision of the standard.

NetBSD 10.99                    April 30, 2010                    NetBSD 10.99