Re: [Boost-users] [Interprocess] Custom naming for the managed_external_buffer

Subject: Re: [Boost-users] [Interprocess] Custom naming for the managed_external_buffer
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2009-06-30 05:42:20

Thomas d'Erceville wrote:
> 
> Hello,
> 
> I'm using a mapped file in order to share my objects between many 
> processes and I already have my own kind of key to identify them. So 
> instead of linking them to a <char *> in the function construct(), I 
> would like to use my own type (providing convenient functions such as 
> less(), operator==, ...)
> So I mean, instead of :
>    MyObject * my_object = mapped_file.construct<MyObject>("object_name");
> 
> I want to known if there is a way to write something like :
>    MyKey *object_key*(...)
>    MyObject * my_object = mapped_file.construct<MyObject>(*object_key*);
> 
> I'm taking a look at the section "Building custom indexes 
> <http://www.boost.org/doc/libs/1_39_0/doc/html/interprocess/customizing_interprocess.html#interprocess.customizing_interprocess.custom_indexes>" 
> but I am not sure to be able to solve my problem with that.
> 
> Could someone confirm?

No, you can't. Interprocess only supports name-based keys.

Best,

Ion