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Cron API: Make wp-cron.php non-blocking where possible.

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This should make cron spawning faster by ensuring requests to wp-cron.php return immediately regardless of transport method. It is enabled only on recent PHP versions with fastcgi, due to historical bugs and availability of `fastcgi_finish_request()`. This needs testing on a range of platforms, to help determine if it's safe to use in other contexts also.

Props vnsavage, johnbillion, jnylen0.
See #18738, #41358


git-svn-id: https://develop.svn.wordpress.org/trunk@44488 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Alex Shiels 2019-01-09 01:05:16 +00:00
parent bd7415490e
commit e06121f2ed
1 changed files with 5 additions and 0 deletions
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5
src/wp-cron.php
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@ -18,6 +18,11 @@
ignore_user_abort( true );
/* Don't make the request block till we finish, if possible. */
if ( function_exists( 'fastcgi_finish_request' ) && version_compare( phpversion(), '7.0.16', '>=' ) ) {
fastcgi_finish_request();
}
if ( ! empty( $_POST ) || defined( 'DOING_AJAX' ) || defined( 'DOING_CRON' ) ) {
die();
}