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Date: Thu, 9 Mar 2017 18:26:26 +0100
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Subject: Proposing a new 'cache_key' streams operation
From: flaupretre@free.fr (=?UTF-8?Q?Fran=c3=a7ois_Laupretre?=)

Hi,

PR is : https://github.com/php/php-src/pull/1711

This PR creates a mechanism to be used by opcode caches to determine 
whether a stream-wrapped URI is cacheable, and the key to use when 
caching it.

The first usage for this operation is to opcode-cache the PHP code 
managed by PCS, which is essential when considering migrating part of a 
core extension from C to PHP.

Please note that the PR *does not* include the changes to make opcache 
use this new mechanism. The reason is that the required changes are far 
from trivial, the opcache code is complex, and I prefer someone more 
familiar with it to implement the changes.

Please comment.

Regards

François