Re: [boost] [interprocess] New snapshot and some explanations

From: Dmitry Smirnov (basilisk_at_[hidden])
Date: 2006-08-08 02:56:54

Practically vectorstream is associated with "information packet".
It should firstly to allocate memory with some maximum size
(to send/receive through socket or shmem).
So it seems no matter what "resize" or "reserve" will used.

Ion Gaztañaga wrote:
> Hi Dmitry,
> 
> 
>>"vectorstream" has "reserve" function instead of "resize" function like 
>>in documentation and previous versions :-)
> 
> 
> Ooops. Documentation is not up-to-date. Resize was changed with reserve 
> because
> 
> a) I originally wanted to reserve memory, but not add characters to the 
> stream. Shmem version called resize and set the new streams pointers, 
> but this was not correct.
> 
> b) I thought that adding characters to be stream should be done using 
> stream functions, instead of though a vector resize.
> 
> The idea in Interprocess is to have "reserve" to avoid reallocations 
> when inserting new characters in the vector and I don't plan to include 
> "reserve". Do you see it useful?
> 
> Regards,
> 
> Ion