Re: [Boost-users] [Interprocess] Mapped file destructor

Subject: Re: [Boost-users] [Interprocess] Mapped file destructor
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2009-07-29 20:47:04

Thomas d'Erceville escribió:
> 
> Hello,
> 
> In my code I open a mapped file (previously created) and I construct an 
> object inside, this object is valid and I can use it. But after the 
> mapped_file has been destroyed my object is not valid anymore. It 
> happens just after the call to the destructor of the mapped file.
> 
> How can I tell to the Mapped File to do not flush its content when it is 
> destructed?

Sorry the long delay, I've been on holidays.

I don't understand your question: when the mapped file is destroyed, the 
address range is unmapped from the process, so you will get a 
segmentation fault if you try to access the address of your object. 
That's how memory mapping works, once you unmap it, that address is garbage.

Best,

Ion

> 
> Best regards.
> 
> Thomas
> 
> 
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