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Re: posix shared memory


> Hi,
> (YAMAMOTO Takashi) wrote:
>> i have userland implementation of posix shared memory.
>> (attached)
>> rmind proposed a kernel implementation while ago.
>> (thus cc:)
>> which way should we go?
>> IMO userland implementation is better because:
>>      - simpler
>>      - smaller
>>      - a bug would have less impact
>>      - "locking object in memory" functionality is better to be
>>        implemented with more generic api like fcntl if necessary
> We should go with the userland implementation.  After some though I
> basically agree with you that facilities like memory locking can be
> implemented with fcntl, mount option tmpfs or whatever.
> However, I would say it would be better to create tmpfs partition
> for this.  A while ago I came up with practically same code, but
> also checking for the fs type:

i don't think it's a good idea to force fstype.
if we want to recommend tmpfs, it's a job for sysinst, not libc.


>> YAMAMOTO Takashi
> -- 
> Mindaugas

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