Hi,
I have interesting question that stops me now.
Suppose I have 2 functions 

1. preparestate
2. doajob

first allocates some state using
MemoryContextAlloc(TopTransactionContext) 
or something, another function using that memory.

question is how I lookup that memory in second function doajob?

Of cause I can return a handle from first function, pointer and accept 
that pointer in second function, but in this case I have to check
that pointer on validity and so on...

Is there any good practice ( some way to do so ) for that?

Thank you.


Mon, 30 Jun 2003 15:57:26 -0700
"Maksim Likharev" <mlikharev@aurigin.com>
Share state ( allocated memory ) across two C functions...
Maksim Likharev wrote:
> Of cause I can return a handle from first function, pointer and accept 
> that pointer in second function, but in this case I have to check
> that pointer on validity and so on...
> 
> Is there any good practice ( some way to do so ) for that?
> 

Best way I've come up with to do this is by using a hash table based on 
a name lookup. See the way it's done in dblink now (as of a week or so 
ago) for named persistent connections.

HTH,

Joe


Mon, 30 Jun 2003 16:22:52 -0700
Joe Conway <mail@joeconway.com>
Re: [HACKERS] Share state ( allocated memory ) across two C
	functions...