Commit d04493eb authored by Erick Hitter's avatar Erick Hitter Committed by GitHub
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Merge pull request #110 from Automattic/add/documentation-on-concurrency

Add example for concurrency
parents fe427ade 48a7c90d
......@@ -3,3 +3,17 @@
Execute WordPress cron events in parallel, using a custom post type for event storage.
Using REST API endpoints (requires WordPress 4.4+), an event queue is produced and events are triggered.
## Event Concurrency
In some circumstances, multiple events with the same action can safely run in parallel. This is usually not the case, largely due to Core's alloptions, but sometimes an event is written in a way that we can support concurrent executions.
To allow concurrency for your event, and to specify the level of concurrency, please hook the `a8c_cron_control_concurrent_event_whitelist` filter as in the following example:
``` php
add_filter( 'a8c_cron_control_concurrent_event_whitelist', function( $wh ) {
$wh['my_custom_event'] = 2;
return $wh;
} );
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