cppcms-users

[Cppcms-users] Implementing chat question

[Barbu P. - G. <bar...@gm...>]

Hi.

I don't understand the bind() call when binding the arguments to 
chat::remove_context.

chat::remove_context takes only one parameter, but there are binded two, how can 
that be possible?

I'm talking about:

booster::shared_ptr<cppcms::http::context> context=release_context();
waiters_.insert(context);
context->async_on_peer_reset(
     bind(
         &chat::remove_context,
         booster::intrusive_ptr<chat>(this),
         context));

and:

void remove_context(booster::shared_ptr<cppcms::http::context> context)
{
     waiters_.erase(context);
}

-- 
Barbu Paul - Gheorghe
Common sense is not so common - Voltaire
Visit My GitHub profile to see my open-source projects - https://github.com/paullik

Re: [Cppcms-users] Implementing chat question

[william l. <we...@gm...>]

http://www.boost.org/doc/libs/1_50_0/libs/bind/bind.html#with_member_pointers


Regards,
William L.

On Fri, Aug 10, 2012 at 2:45 AM, Barbu Paul - Gheorghe <
bar...@gm...> wrote:

> Hi.
>
> I don't understand the bind() call when binding the arguments to
> chat::remove_context.
>
> chat::remove_context takes only one parameter, but there are binded two,
> how can
> that be possible?
>
> I'm talking about:
>
> booster::shared_ptr<cppcms::http::context> context=release_context();
> waiters_.insert(context);
> context->async_on_peer_reset(
>      bind(
>          &chat::remove_context,
>          booster::intrusive_ptr<chat>(this),
>          context));
>
> and:
>
> void remove_context(booster::shared_ptr<cppcms::http::context> context)
> {
>      waiters_.erase(context);
> }
>
> --
> Barbu Paul - Gheorghe
> Common sense is not so common - Voltaire
> Visit My GitHub profile to see my open-source projects -
> https://github.com/paullik
>
>
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Re: [Cppcms-users] Implementing chat question

[Barbu P. - G. <bar...@gm...>]

On 08/10/2012 07:53 AM, william lee wrote:
> http://www.boost.org/doc/libs/1_50_0/libs/bind/bind.html#with_member_pointers

Thak you.

If I understood correctly the two binded arguments are:
* the first for setting the instance of the objcact from where the member 
pointer should be called from
* the 2nd arg. for setting the actual parameter of the called member function

-- 
Barbu Paul - Gheorghe
Common sense is not so common - Voltaire
Visit My GitHub profile to see my open-source projects - https://github.com/paullik