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Date: Wed, 4 Jul 2018 11:32:40 +0200
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Subject: Re: [PHP-DEV] Re: PHP 7.3 zif_handler changes
From: cmbecker69@gmx.de ("Christoph M. Becker")

On 04.07.2018 at 01:16, Jan Ehrhardt wrote:

> Another one: some extensioms suffer from the fact that the macro GC_G
> was removed from
> https://github.com/php/php-src/blob/master/Zend/zend_gc.h
> Some of the removed functionality has been reintroduced in gc_status
> https://github.com/php/php-src/commits/master/Zend/zend_gc.h
> 
> Examples using GC_G: v8js, xdebug, tideways.
> v8js was using gc_active to check if garbage collection was running.
> I did a wild guess to fix it:
> https://github.com/Jan-E/v8js/commit/997df065d3cd06a9b11e399458c391eb797a850e#diff-dc446a69201ccda44a33d111152f6c8c

This looks wrong, since zend_gc_collect_cycles() actually triggers the
GC, if I'm not mistaken.

It seems to me that should be something like:

  zend_gc_status status;
  zend_gc_get_status(&status);
  if (status.runs) {

> Are the changes to zend_gc.h documneted?

Apparently not.  The relevant commit is baa9890[1].

[1]
<http://git.php.net/?p=php-src.git;a=commit;h=baa9890112a863f10e62bbb4c5a1623642a5db3c>

-- 
Christoph M. Becker