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Interrupt.pm  view on Meta::CPAN

   signal_func (signal_arg, 0);

The function is safe to call from within signal and thread contexts, at
any time. The specified C<value> is passed to both C and Perl callback.

C<$value> must be in the valid range for a C<sig_atomic_t>, except C<0>
(1..127 is portable).

If the function is called while the Async::Interrupt object is already
signaled but before the callbacks are being executed, then the stored
C<value> is either the old or the new one. Due to the asynchronous
nature of the code, the C<value> can even be passed to two consecutive
invocations of the callback.

=item $address = $async->c_var

Returns the address (cast to IV) of an C<IV> variable. The variable is set
to C<0> initially and gets set to the passed value whenever the object
gets signalled, and reset to C<0> once the interrupt has been handled.

README  view on Meta::CPAN

           signal_func (signal_arg, 0);

        The function is safe to call from within signal and thread contexts,
        at any time. The specified "value" is passed to both C and Perl
        callback.

        $value must be in the valid range for a "sig_atomic_t", except 0
        (1..127 is portable).

        If the function is called while the Async::Interrupt object is
        already signaled but before the callbacks are being executed, then
        the stored "value" is either the old or the new one. Due to the
        asynchronous nature of the code, the "value" can even be passed to
        two consecutive invocations of the callback.

    $address = $async->c_var
        Returns the address (cast to IV) of an "IV" variable. The variable
        is set to 0 initially and gets set to the passed value whenever the
        object gets signalled, and reset to 0 once the interrupt has been
        handled.