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Date: Sun, 19 Jan 2014 05:52:02 -0500
Message-ID: <CAL+t6cGPjQRqrNW+dH2UobnMj3-OgAAsDOkPrOSqzzrkhtvFOA@mail.gmail.com>
To: Lin Yo-An <cornelius.howl@gmail.com>
Cc: Joe Watkins <krakjoe@php.net>, "internals@lists.php.net" <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=089e010d8612ac983e04f05090dc
Subject: Re: [PHP-DEV] Re: How to create Persistent zval?
From: theanomaly.is@gmail.com (Sherif Ramadan)

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Content-Type: text/plain; charset=ISO-8859-1

On Sun, Jan 19, 2014 at 1:16 AM, Lin Yo-An <cornelius.howl@gmail.com> wrote:

> Thanks again for the detailed answers and your patience. =]
>
> Just want to make sure the mechanism here:
>
> 1. an object can not be persistent even the object is allocated with
> pemalloc?
>    I actually have tried using pemalloc then init an object few days ago,
> and it doesn't work.
>
> 2. an zend object can not be allocated persistently because its property
> HashTable or handlers is not allocated persistently by default?
>
> 3. if so, objects must be serialized to string?
>
> 4. what about array? can I make the array persistent with pemalloc
> allocation and without serialization?
>
>
> Thank you so much
> Yo-An Lin
> http://github.com/c9s
>
>

Sending this message on behalf of Joe as he's having technical difficulties
sending to the list...


----




1) We have no support for a persistent objects store, whatever you put in
the objects store has a request lifecycle.

2) Correct, a zend object cannot be persistent, as 1).

3) Actual objects, in the sense of zend_objects in the object store
(EG(objects_store)), must be serialized.

4) A HashTable, one that is not used as the properties of an object in
EG(objects_store) can be persistent, and doesn't have to be serialized.

https://github.com/krakjoe/apcu/blob/simplify/apc_cache.c#L1164

Above is the function that copies HashTables to shared memory for APC

https://github.com/krakjoe/apcu/blob/simplify/apc_cache.c#L1309

Above is the callback function passed to my_copy_hashtable as copy_fn, note
that only objects are serialized by this code, nothing else.

Cheers
Joe

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