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Cron: Fix a case where a cache inconsistency can cause wp_clear_scheduled_hook() to enter an infinite loop. This unravels the function from using other cron api functions to looping over the cron array directly. See #25773 

Built from https://develop.svn.wordpress.org/trunk@26782


git-svn-id: http://core.svn.wordpress.org/trunk@26669 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Dion Hulse 2013-12-07 09:13:11 +00:00
parent 04a39763db
commit bb9dd73d53
1 changed files with 13 additions and 2 deletions
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13
wp-includes/cron.php
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@ -168,9 +168,20 @@ function wp_clear_scheduled_hook( $hook, $args = array() ) {
$args = array_slice( func_get_args(), 1 );
}
while ( $timestamp = wp_next_scheduled( $hook, $args ) )
// This logic duplicates wp_next_scheduled()
// It's required due to a scenario where wp_unschedule_event() fails due to update_option() failing,
// and, wp_next_scheduled() returns the same schedule in an infinite loop.
$crons = _get_cron_array();
if ( empty( $crons ) )
return;
$key = md5( serialize( $args ) );
foreach ( $crons as $timestamp => $cron ) {
if ( isset( $cron[ $hook ][ $key ] ) ) {
wp_unschedule_event( $timestamp, $hook, $args );
}
}
}
/**
* Retrieve the next timestamp for a cron event.