Re: [Boost-users] [Interprocess] error_code_t = 9 (already_exists_error) while opening a fixed_managed_shared_memory

Subject: Re: [Boost-users] [Interprocess] error_code_t = 9 (already_exists_error) while opening a fixed_managed_shared_memory
From: Viatcheslav.Sysoltsev_at_[hidden]
Date: 2011-05-20 05:22:14

On Fri, 20 May 2011 10:15:52 +0200, Gaetan Gaumer <gaetan.gaumer_at_[hidden]>  
wrote:

1) every process has its own address space
2) the memory, where you're trying to map the shared memory may be already  
partially occupied, so fixed mapping *have to* fail occasionally

To summarize: I would not use fixed shared memory mapping - to be stable  
it shall require dirty hacks to preallocate the memory region, with  
unexpected problems floating up when you create a library from your code.

-- Slava