On Wed, 4 Jul 2018, Christoph M. Becker wrote:

> On 04.07.2018 at 12:24, Nikita Popov wrote:
> 
> > On Wed, Jul 4, 2018 at 11:32 AM, Christoph M. Becker <cmbecke...@gmx.de>
> > wrote:
> > 
> >> 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/997df065d3cd06a9b11e399458c391
> >> eb797a850e#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) {
> >>
> > 
> > The correct way to handle this is to implement a proper get_gc() handler,
> > which will be called in favor of get_properties() during GC.
> 
> Ah, thanks!  In some other cases, for instance, in Xdebug[1], using
> zend_gc_get_status() would be correct, wouldn't it?
> 
> [1]
> <https://github.com/xdebug/xdebug/blob/27e20b16d23ab611d2a8e74d2e3c061710e18d8f/xdebug_gc_stats.c#L47-L57>

It should be - care to make a patch? :-) Xdebug also doesn't do the hash 
protections correctly yet. I've not had the time to make a fix for that 
yet either (hint!) ;-)

cheers,
Derick

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