[Boost-users] Boost InterProcess Shared Memory: Grow()

Subject: [Boost-users] Boost InterProcess Shared Memory: Grow()
From: Sunanda Chowdhary (sunanda.siso_at_[hidden])
Date: 2014-03-19 01:23:55

>
> Hi,
>
> I am new to Shared memory functionality. I have a question related to
> grow().
>
> 1. For growing a memory we need to first un-map the memory and then map it
> again. Suppose before un-map base address of shared memory is X then after
> growing will the base address be changed or extra segment of memory will be
> added to existing memory keeping base address same?
>
> More specifically, will the entire memory (original + extra grow memory)
> be reallocated as one chunk or mere addition of an extra chunk is done?
>
> 2. If entire memory (original + extra grow memory) is reallocated after
> growing then how to manage previously allocated memory that is the shared
> memory which was being used before grow was called (original)? Does grow
> takes care of deleting it?
>
>    By posing this query I am more concerned about memory leaks. Please
help.

Thanks
>