I want to create an index and put it in memory, and allow it to be
read by multiple programs (processes).
The index table looks like this:
1  231
2  91
3  147
...

There are million items, each row uses 2 int, so total size about
10MB.  I only know how to create this in memory and use it by the SAME
program which created it.  I have no idea how I could let it stay in
memory and be used by OTHER programs (and more than one at one time).
Thanks

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b83503104@yahoo.com (b83503104) writes:

> I want to create an index and put it in memory, and allow it to be
> read by multiple programs (processes).
> The index table looks like this:
> 1  231
> 2  91
> 3  147
> ...
>
> There are million items, each row uses 2 int, so total size about
> 10MB.  I only know how to create this in memory and use it by the SAME
> program which created it.  I have no idea how I could let it stay in
> memory and be used by OTHER programs (and more than one at one time).
> Thanks

Put it into shared memory. Use shmget(), shmat() and friends.

HTH, Dragan


--
Dragan Cvetkovic,

To be or not to be is true. G. Boole      No it isn't.  L. E. J. Brouwer

!!! Sender/From address is bogus. Use reply-to one !!!

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["Followup-To:" header set to comp.unix.programmer.]
On 2004-10-01, Dragan Cvetkovic <me@privacy.net> wrote:
> b83503104@yahoo.com (b83503104) writes:
> 
>
> Put it into shared memory. Use shmget(), shmat() and friends.

Maybe simply put it into file and then mmap it in your applications. man
mmap.

Andrei

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