RE: [PECL-DEV] Proposal for a new extension AMFEXT

Yep I think it's definitely useful. I'll also take a look at the StringBuilder work. Thanks, Andi > -----Original Message----- > From: Emanuele Ruffaldi [mailto:emanuele.ruffaldi@sssup.it] > Sent: Tuesday, February 13, 2007 4:17 AM > To: pecl-dev@lists.php.net > Subject: [PECL-DEV] Proposal for a new extension AMFEXT > > > Hello everybody, > > I would like to propose to add a new PECL extension for > encoding and decoding ActionScript Messages (AMF) for faster > data exchange between PHP and Flash. > The extension has already been implemented, tested and > integrated by the amfphp project, and the people SabreAMF are > doing the same. If the extension is present amfphp takes > advantage of it otherwise it uses the PHP serializer. > The idea of this extension is to provide the core elements > of the AMF encoding and decoding while demanding the higher > level handling to PHP. The extension has just two functions > amf_encode and amf_decode, while flexibility has been > provided by some callback functions that control how objects > are encoded and decoded. Moreover recordsets can be encoded > quite efficiently with a specific callback. > > There is an implementation detail that I would like to point > out. During encoding I was initially using the smart_str type > for storing the encoding, but it was scaling bad with big > data to encode. I've solved the problem with a StringBuilder > data structure that is able to scalable well with data, and > also it stores references to PHP string if they are longer > than a threshold, something that happens frequently during > encoding. Internally the data structure is made of a list of > allocation blocks, and each allocation block is a sequence of > raw datas or references to zval. I don't know if this > StringBuilder could be useful for other uses, in the > meanwhile I've packed it as a resource, that can be used > independently on AMF encoding. > In particular the StringBuilder can be sent to a stream > without flattening into a string. > > The extension has been currently published on > http://www.teslacore.it/wiki/index.php?title=AMFEXT where it > is possible to obtain details on the encoding and the > StringBuilder. I am planning to move the source code into the > amfphp project in SourceForge or better in a new project. The > extension is licensed under PHP License Version 3. > > Do you think that such extension could be interesting or useful? > > Best Regards, > Emanuele Ruffaldi > > -- > Emanuele Ruffaldi > Computer Engineer - PhD. > Scuola Superiore Sant'Anna di Pisa > PERCRO Lab - Virtual Reality and > Telerobotic Systems Division > via Martiri 11 > 56100 Pisa - ITALY > Tel.: +39 050 838 980 > Fax.: +39 050 883 333 > E-mail: emanuele.ruffaldi@sssup.it > Web: http://www.teslacore.it > > -- > PECL development discussion Mailing List > (http://pecl.php.net/) To unsubscribe, visit: > http://www.php.net/unsub.php >