Re: suspicious pointer/integer coersion

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: suspicious pointer/integer coersion
Date: 2005-07-10 20:31:17
Message-ID: 42D18595.6040104@dunslane.net
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Tom Lane wrote:

>Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
>
>
>>I have just noticed this code in plperl.c:
>>
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>> hv_store(plperl_proc_hash, internal_proname, proname_len,
>> newSViv((IV) prodesc), 0);
>>
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>>basically, here prodesc is a pointer to a struct, and we are storing it
>>as an integer in a perl hash for easy lookup by stringified oid.
>>
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>>How safe is this conversion on 64 bit platforms?
>>
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>Not at all. I'd vote for converting the whole thing to a dynahash
>hashtable ...
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Works for me. There are some other things about the procdesc stuff I'm
trying to sort out (especially if we should be storing per-call info
inside it).

Cleaning this up is definitely a TODO.

cheers

andrew

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