NAME

       Coro::Specific - manage coroutine-specific variables.

SYNOPSIS

        use Coro::Specific;

        my $ref = new Coro::Specific;

        $$ref = 5;
        print $$ref;

DESCRIPTION

       This module can be used to create variables (or better: references to them) that are
       specific to the currently executing coroutine. This module does not automatically load the
       Coro module (so the overhead will be small when no coroutines are used).

       A much faster method is to store extra keys into %$Coro::current - all you have to do is
       to make sure that the key is unique (e.g. by prefixing it with your module name). You can
       even store data there before loading the Coro module - when Coro is loaded, the keys
       stored in %$Coro::current are automatically attached to the coro thread executing the main
       program.

       You don't have to load "Coro::Specific" manually, it will be loaded automatically when you
       "use Coro" and call the "new" constructor.

       new Create a new coroutine-specific scalar and return a reference to it. The scalar is
           guarenteed to be "undef". Once such a scalar has been allocated you cannot deallocate
           it (yet), so allocate only when you must.

BUGS

       The actual coroutine specific values do not automatically get destroyed when the
       Coro::Specific object gets destroyed.

AUTHOR

        Marc Lehmann <schmorp@schmorp.de>
        http://home.schmorp.de/