NAME

       Thread::SigMask - Thread specific signal masks

VERSION

       version 0.004

SYNOPSIS

        use Thread::SigMask qw/sigset/;
        use POSIX qw/SIG_BLOCK SIG_UNBLOCK/;

        sigmask(SIG_BLOCK, $sigset);
        ...
        sigmask(SIG_UNBLOCK, $sigset);

DESCRIPTION

       This module provides per-thread signal masks. On non-threaded perls it will be effectively
       the same as POSIX::sigprocmask. The interface works exactly the same as sigprocmask.

FUNCTIONS

   sigmask($how, $newset, $oldset = undef)
       Change and/or examine calling process's signal mask. This uses "POSIX::SigSet" objects for
       the newset and oldset arguments. The behavior of the call is dependent on the value of
       how.

       •   SIG_BLOCK

           The set of blocked signals is the union of the current set and the set argument.

       •   SIG_UNBLOCK

           The signals in set are removed from the current set of blocked signals. It is
           permissible to attempt to unblock a signal which is not blocked.

       •   SIG_SETMASK

           The set of blocked signals is set to the argument set.

       If oldset is defined, the previous value of the signal mask is stored in oldset. If newset
       is NULL, then the signal mask is unchanged (i.e., how is ignored), but the current value
       of the signal mask is nevertheless returned in oldset (if it is not NULL).

SEE ALSO

       Signal::Mask

ACKNOWLEDGEMENTS

       Parts of this documentation is shamelessly stolen from POSIX and Linux' sigprocmask(2).

AUTHOR

       Leon Timmermans <leont@cpan.org>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2010 by Leon Timmermans.

       This is free software; you can redistribute it and/or modify it under the same terms as
       the Perl 5 programming language system itself.