[Boost-users] [Boost.Signal] Single-shot Connection?

From: Wu Yinghui, Freddie (yhwu_at_[hidden])
Date: 2006-09-17 21:57:23

Dear all,

I sent in this on 14 Sept, but have received no reply so far. As I'm not
sure if it was lost in the void, I'm resend the mail again. Please bear
with me if you have received the same question before.

> I'm a happy user of Boost.Signal, as it brings great power to our
> software design in terms of loosening all the coupling between
> components.
>
> However, I recently come across a case where a single-shot slot is
> desired (i.e., a signal-slot connection that is automatically
> disconnected once the signal is invoked for once). In our current
> implementation, we have to keep boost::signals::connection object around
> with the slot implementation, so that it can disconnect it after the
first invocation.
>
> However, we have this problem of boost::signals::connection management,
> since one signal may be connected to different signals and we have
> problem identifying the correct connection to be disconnected. So my
> question is: Is there any easier way (i.e., ways that doesn't involve
> the implementation of the slot function itself) that I can add a
> single-shot signal-slot connection?
>
> Any suggestion is appreciated.

Cheers,

Freddie

-- 
Wu Yinghui, Freddie
Research & Development
Senior Software Engineer
Volume Interactions Pte Ltd
1 Kim Seng Promenade, #12-01
Great World City East Tower
Singapore 237994
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Email: yhwu_at_[hidden]
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