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Date: Thu, 5 Nov 2009 11:29:50 -0800
Message-ID: <c25f8d340911051129n3257edccv16a94a7ba88d969@mail.gmail.com>
To: internals@lists.php.net
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Subject: Re: [PHP-DEV] Feedback requested on using #defines to improve the 
	performance of the TSRMG macro
From: 0xcafefeed@gmail.com (mm w)

so should be a UUID rather than a user defined int you cannot avoid
collision with your system, it's a dangerous way to go.

Best,

On Thu, Nov 5, 2009 at 11:20 AM, Arvind Srinivasan <yoarvi@gmail.com> wrote=
:
>> Does the GLOBALS_ID_BASE idea work? =C2=A0In
>> "ts_allocate_reserved_id(GLOBALS_ID_BASE+1...)" each extension would
>> anyway need to reserve an increment to avoid clashes. =C2=A0Also, why is
>
> I didn't really try using this. When I added it, I thought it might be
> useful for modules that live outside the PHP source tree. They could
> then define their constants using
> #define FOO_ID (GLOBALS_ID_BASE + 3)
> rather than hardcoding 33. As you point out, they would still need to
> reserve an increment.
>
>> GLOBALS_ID_BASE 30 when the largest reserved value is 18? =C2=A0Maybe I'=
m
>> missing something.
>>
> I reserved IDs for the subsystems I thought were core. I was sure
> there'd be others that I'd missed and so I left space for more.
>
>
>> Would there be significant memory space or locality issues if one ID
>> per extension in the PHP source bundle was reserved upfront, even if
>> those extensions were never enabled?
>>
>
> I'll run some tests and see what impact this has.
>
> Arvi
>
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