[Webkit-unassigned] [Bug 189822] Apache can return a corrupt manifest file while ManifestGenerator::store is running

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=189822

--- Comment #3 from dewei_zhu at apple.com ---
Comment on attachment 350341
  --> https://bugs.webkit.org/attachment.cgi?id=350341
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=350341&action=review

>> Websites/perf.webkit.org/public/api/measurement-set.php:55
>> +        generate_json_data_conditionally($cache_filename, $json, 'elapsedTime');
> 
> I don't think we want to rely on elapsedTime being the last item like this.
> Pass in $elapsed_time as the last argument to generate_json_data_conditionally instead:
> generate_json_data_conditionally($cache_filename, $content, $elapsed_time);
> It's better to invoke json_encode in generate_json_data_conditionally instead.
> Also, we should probably call this generate_json_data_if_needed to match the naming convention used elsewhere in WebKit.

If do so, we need to make generate_json_date_conditinally returns an encoded json to void calling json_encode twice as it is needed in Lin 58.

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