- Patch #578676 by sun: clean ups for cron queue.
Dries Buytaert
parent
142003cd01
commit
9e63842460
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@ -83,8 +83,6 @@ Drupal 7.0, xxxx-xx-xx (development version)
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* Revamped the filter API and text format storage.
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* Added support for default text formats to be assigned on a per-role basis.
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* Refactored the HTML corrector to take advantage of PHP 5 features.
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- Removed ping module:
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* Contributed modules with similar functionality are available.
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- User system:
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* Added clean API functions for creating, loading, updating, and deleting
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user roles and permissions.
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@ -96,9 +94,6 @@ Drupal 7.0, xxxx-xx-xx (development version)
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at the operating system level.
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* Removed per-user themes: Contributed modules with similar functionality
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are available.
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- Removed throttle module:
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* Alternative methods for improving performance are available in other core and
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contributed modules.
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- Added code registry:
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* Using the registry, modules declare their includable files via their .info file,
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allowing Drupal to lazy-load classes and interfaces as needed.
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@ -173,10 +168,14 @@ Drupal 7.0, xxxx-xx-xx (development version)
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* Upgraded the jQuery Forms library to 2.21.
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* Added jQuery UI 1.7.2, which allows improvements to Drupal's user
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experience.
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- Better module version support.
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- Better module version support
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* Modules now can specify which version of another module they depend on.
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- Blog API
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* This module has been removed from core.
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- Removed modules from core
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* The following modules have been removed from core, because contributed
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modules with similar functionality are available:
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* Blog API module
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* Ping module
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* Throttle module
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- Improved node access control system.
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* All modules may now influence the access to a node at runtime, not just
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the module that defined a node.
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@ -188,6 +187,11 @@ Drupal 7.0, xxxx-xx-xx (development version)
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* Simplified definitions of actions and triggers.
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* Removed dependency on the combination of hooks and operations. Triggers
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now directly map to module hooks.
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- Task handling
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* Added a queue API to process many or long-running tasks.
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* Added queue API support to cron API.
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* Added a locking framework to coordinate long-running operations across
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requests.
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Drupal 6.0, 2008-02-13
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----------------------
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@ -120,25 +120,48 @@ function hook_entity_info_alter(&$entity_info) {
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/**
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* Perform periodic actions.
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*
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* This hook will only be called if cron.php is run (e.g. by crontab).
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*
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* Modules that require to schedule some commands to be executed at regular
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* intervals can implement hook_cron(). The engine will then call the hook
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* at the appropriate intervals defined by the administrator. This interface
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* is particularly handy to implement timers or to automate certain tasks.
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* Database maintenance, recalculation of settings or parameters are good
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* candidates for cron tasks.
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* Long running tasks should use the queue API, define one or more queues with
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* hook_cron_queue_info() and put items in the queue instead of running them in
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* hook_cron(). Examples of jobs that are good candidates for hook_cron_queue_info
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* include automated mailing, retrieving remote data, and intensive file tasks.
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*
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* This hook will only be called if cron.php is run (e.g. by crontab).
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* Short-running or not resource intensive tasks can be executed directly.
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*
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* Long-running tasks should use the queue API. To do this, one or more queues
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* need to be defined via hook_cron_queue_info(). Items that need to be
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* processed are appended to the defined queue, instead of processing them
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* directly in hook_cron().
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* Examples of jobs that are good candidates for
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* hook_cron_queue_info() include automated mailing, retrieving remote data, and
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* intensive file tasks.
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*
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* @return
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* None.
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*
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* @see hook_cron_queue_info()
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*/
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function hook_cron() {
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$result = db_query('SELECT * FROM {site} WHERE checked = 0 OR checked + refresh < :time', array(':time' => REQUEST_TIME));
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$queue = DrupalQueue::get('aggregator_feeds');
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// Short-running operation example, not using a queue:
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// Delete all expired records since the last cron run.
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$expires = variable_get('mymodule_cron_last_run', REQUEST_TIME);
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db_delete('mymodule_table')
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->condition('expires', $expires, '>=')
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->execute();
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variable_set('mymodule_cron_last_run', REQUEST_TIME);
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foreach ($result as $site) {
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$queue->createItem($site);
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// Long-running operation example, leveraging a queue:
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// Fetch feeds from other sites.
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$result = db_query('SELECT * FROM {aggregator_feed} WHERE checked + refresh < :time AND refresh != :never', array(
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':time' => REQUEST_TIME,
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':never' => AGGREGATOR_CLEAR_NEVER,
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));
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$queue = DrupalQueue::get('aggregator_feeds');
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foreach ($result as $feed) {
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$queue->createItem($feed);
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}
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}
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@ -148,18 +171,20 @@ function hook_cron() {
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* While there can be only one hook_cron() process running at the same time,
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* there can be any number of processes defined here running. Because of
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* this, long running tasks are much better suited for this API. Items queued
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* in hook_cron might be processed in the same cron run if there are not many
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* items in the queue, otherwise it might take several requests.which can be run
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* in parallel.
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* in hook_cron() might be processed in the same cron run if there are not many
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* items in the queue, otherwise it might take several requests, which can be
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* run in parallel.
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*
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* @return
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* An associative array where the key is the queue name and the value is
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* again an associative array. Possible keys are:
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* 'worker callback' The name of the function to call. It will be called
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* with one argument, the $item from createItem called
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* in hook_cron.
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* 'time' How much time Drupal should spend on calling this
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* worker in seconds. Optional, defaults to 15.
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* - 'worker callback': The name of the function to call. It will be called
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* with one argument, the item created via DrupalQueue::createItem() in
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* hook_cron().
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* - 'time': (optional) How much time Drupal should spend on calling this
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* worker in seconds. Defaults to 15.
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*
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* @see hook_cron()
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*/
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function hook_cron_queue_info() {
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$queues['aggregator_feeds'] = array(
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@ -703,8 +728,11 @@ function hook_mail_alter(&$message) {
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* @param $file
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* Full information about the module or theme, including $file->name, and
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* $file->filename
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* @param $type
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* Either 'module' or 'theme', depending on the type of .info file that was
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* passed.
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*/
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function hook_system_info_alter(&$info, $file) {
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function hook_system_info_alter(&$info, $file, $type) {
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// Only fill this in if the .info file does not define a 'datestamp'.
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if (empty($info['datestamp'])) {
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$info['datestamp'] = filemtime($file->filename);
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@ -1895,7 +1895,7 @@ function _system_get_module_data() {
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// Invoke hook_system_info_alter() to give installed modules a chance to
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// modify the data in the .info files if necessary.
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drupal_alter('system_info', $modules[$key]->info, $modules[$key]);
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drupal_alter('system_info', $modules[$key]->info, $modules[$key], 'module');
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}
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// The install profile is required.
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@ -1988,7 +1988,7 @@ function _system_get_theme_data() {
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// Invoke hook_system_info_alter() to give installed modules a chance to
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// modify the data in the .info files if necessary.
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drupal_alter('system_info', $themes[$key]->info, $themes[$key]);
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drupal_alter('system_info', $themes[$key]->info, $themes[$key], 'theme');
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if (!empty($themes[$key]->info['base theme'])) {
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$sub_themes[] = $key;
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@ -2150,11 +2150,13 @@ function system_region_list($theme_key, $show = REGIONS_ALL) {
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/**
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* Implement hook_system_info_alter().
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*/
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function system_system_info_alter(&$info, $file) {
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function system_system_info_alter(&$info, $file, $type) {
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// Remove page-top from the blocks UI since it is reserved for modules to
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// populate from outside the blocks system.
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$info['regions_hidden'][] = 'page_top';
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$info['regions_hidden'][] = 'page_bottom';
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if ($type == 'theme') {
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$info['regions_hidden'][] = 'page_top';
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$info['regions_hidden'][] = 'page_bottom';
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}
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}
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/**
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