Re: [Boost-users] Using boost::interprocess shared memory for both 32-bit and 64-bit processes

Subject: Re: [Boost-users] Using boost::interprocess shared memory for both 32-bit and 64-bit processes
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2010-09-20 11:08:56

El 20/09/2010 16:32, Jonathon escribió:
> Hello,
>
> I would like to read/write from/to boost::interprocess shared memory
> segments from a 32-bit process and a 64-bit process on the same
> machine.  Is this possible?  I've attempted to do this, but I seem to
> be experiencing some compatibility issues.  Note that I am
> reading/writing boost::inteprocess containers to shared memory.

No. Basic data types used inside interprocess have no fixed width, so 
processes with different ABIs can't shared managed resources. Note that 
if the compiler uses a different ABI (EBO optimization, etc..) for 64 
and 32 processes you an additional problem.

> If it is not possible to do this, what are some possible solutions for this?

There is fix, unless you reimplement Interprocess using news fixed width 
classes :-(

Best,

Ion