File "ActionScheduler_Abstract_QueueRunner.php"
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Charset: utf-8
<?php
/**
* Abstract class with common Queue Cleaner functionality.
*/
abstract class ActionScheduler_Abstract_QueueRunner extends ActionScheduler_Abstract_QueueRunner_Deprecated {
/** @var ActionScheduler_QueueCleaner */
protected $cleaner;
/** @var ActionScheduler_FatalErrorMonitor */
protected $monitor;
/** @var ActionScheduler_Store */
protected $store;
/**
* The created time.
*
* Represents when the queue runner was constructed and used when calculating how long a PHP request has been running.
* For this reason it should be as close as possible to the PHP request start time.
*
* @var int
*/
private $created_time;
/**
* ActionScheduler_Abstract_QueueRunner constructor.
*
* @param ActionScheduler_Store $store
* @param ActionScheduler_FatalErrorMonitor $monitor
* @param ActionScheduler_QueueCleaner $cleaner
*/
public function __construct( ActionScheduler_Store $store = null, ActionScheduler_FatalErrorMonitor $monitor = null, ActionScheduler_QueueCleaner $cleaner = null ) {
$this->created_time = microtime( true );
$this->store = $store ? $store : ActionScheduler_Store::instance();
$this->monitor = $monitor ? $monitor : new ActionScheduler_FatalErrorMonitor( $this->store );
$this->cleaner = $cleaner ? $cleaner : new ActionScheduler_QueueCleaner( $this->store );
}
/**
* Process an individual action.
*
* @param int $action_id The action ID to process.
* @param string $context Optional identifer for the context in which this action is being processed, e.g. 'WP CLI' or 'WP Cron'
* Generally, this should be capitalised and not localised as it's a proper noun.
*/
public function process_action( $action_id, $context = '' ) {
try {
$valid_action = false;
do_action( 'action_scheduler_before_execute', $action_id, $context );
if ( ActionScheduler_Store::STATUS_PENDING !== $this->store->get_status( $action_id ) ) {
do_action( 'action_scheduler_execution_ignored', $action_id, $context );
return;
}
$valid_action = true;
do_action( 'action_scheduler_begin_execute', $action_id, $context );
$action = $this->store->fetch_action( $action_id );
$this->store->log_execution( $action_id );
$action->execute();
do_action( 'action_scheduler_after_execute', $action_id, $action, $context );
$this->store->mark_complete( $action_id );
} catch ( Exception $e ) {
if ( $valid_action ) {
$this->store->mark_failure( $action_id );
do_action( 'action_scheduler_failed_execution', $action_id, $e, $context );
} else {
do_action( 'action_scheduler_failed_validation', $action_id, $e, $context );
}
}
if ( isset( $action ) && is_a( $action, 'ActionScheduler_Action' ) && $action->get_schedule()->is_recurring() ) {
$this->schedule_next_instance( $action, $action_id );
}
}
/**
* Schedule the next instance of the action if necessary.
*
* @param ActionScheduler_Action $action
* @param int $action_id
*/
protected function schedule_next_instance( ActionScheduler_Action $action, $action_id ) {
try {
ActionScheduler::factory()->repeat( $action );
} catch ( Exception $e ) {
do_action( 'action_scheduler_failed_to_schedule_next_instance', $action_id, $e, $action );
}
}
/**
* Run the queue cleaner.
*
* @author Jeremy Pry
*/
protected function run_cleanup() {
$this->cleaner->clean( 10 * $this->get_time_limit() );
}
/**
* Get the number of concurrent batches a runner allows.
*
* @return int
*/
public function get_allowed_concurrent_batches() {
return apply_filters( 'action_scheduler_queue_runner_concurrent_batches', 1 );
}
/**
* Check if the number of allowed concurrent batches is met or exceeded.
*
* @return bool
*/
public function has_maximum_concurrent_batches() {
return $this->store->get_claim_count() >= $this->get_allowed_concurrent_batches();
}
/**
* Get the maximum number of seconds a batch can run for.
*
* @return int The number of seconds.
*/
protected function get_time_limit() {
$time_limit = 30;
// Apply deprecated filter from deprecated get_maximum_execution_time() method
if ( has_filter( 'action_scheduler_maximum_execution_time' ) ) {
_deprecated_function( 'action_scheduler_maximum_execution_time', '2.1.1', 'action_scheduler_queue_runner_time_limit' );
$time_limit = apply_filters( 'action_scheduler_maximum_execution_time', $time_limit );
}
return absint( apply_filters( 'action_scheduler_queue_runner_time_limit', $time_limit ) );
}
/**
* Get the number of seconds the process has been running.
*
* @return int The number of seconds.
*/
protected function get_execution_time() {
$execution_time = microtime( true ) - $this->created_time;
// Get the CPU time if the hosting environment uses it rather than wall-clock time to calculate a process's execution time.
if ( function_exists( 'getrusage' ) && apply_filters( 'action_scheduler_use_cpu_execution_time', defined( 'PANTHEON_ENVIRONMENT' ) ) ) {
$resource_usages = getrusage();
if ( isset( $resource_usages['ru_stime.tv_usec'], $resource_usages['ru_stime.tv_usec'] ) ) {
$execution_time = $resource_usages['ru_stime.tv_sec'] + ( $resource_usages['ru_stime.tv_usec'] / 1000000 );
}
}
return $execution_time;
}
/**
* Check if the host's max execution time is (likely) to be exceeded if processing more actions.
*
* @param int $processed_actions The number of actions processed so far - used to determine the likelihood of exceeding the time limit if processing another action
* @return bool
*/
protected function time_likely_to_be_exceeded( $processed_actions ) {
$execution_time = $this->get_execution_time();
$max_execution_time = $this->get_time_limit();
$time_per_action = $execution_time / $processed_actions;
$estimated_time = $execution_time + ( $time_per_action * 3 );
$likely_to_be_exceeded = $estimated_time > $max_execution_time;
return apply_filters( 'action_scheduler_maximum_execution_time_likely_to_be_exceeded', $likely_to_be_exceeded, $this, $processed_actions, $execution_time, $max_execution_time );
}
/**
* Get memory limit
*
* Based on WP_Background_Process::get_memory_limit()
*
* @return int
*/
protected function get_memory_limit() {
if ( function_exists( 'ini_get' ) ) {
$memory_limit = ini_get( 'memory_limit' );
} else {
$memory_limit = '128M'; // Sensible default, and minimum required by WooCommerce
}
if ( ! $memory_limit || -1 === $memory_limit || '-1' === $memory_limit ) {
// Unlimited, set to 32GB.
$memory_limit = '32G';
}
return ActionScheduler_Compatibility::convert_hr_to_bytes( $memory_limit );
}
/**
* Memory exceeded
*
* Ensures the batch process never exceeds 90% of the maximum WordPress memory.
*
* Based on WP_Background_Process::memory_exceeded()
*
* @return bool
*/
protected function memory_exceeded() {
$memory_limit = $this->get_memory_limit() * 0.90;
$current_memory = memory_get_usage( true );
$memory_exceeded = $current_memory >= $memory_limit;
return apply_filters( 'action_scheduler_memory_exceeded', $memory_exceeded, $this );
}
/**
* See if the batch limits have been exceeded, which is when memory usage is almost at
* the maximum limit, or the time to process more actions will exceed the max time limit.
*
* Based on WC_Background_Process::batch_limits_exceeded()
*
* @param int $processed_actions The number of actions processed so far - used to determine the likelihood of exceeding the time limit if processing another action
* @return bool
*/
protected function batch_limits_exceeded( $processed_actions ) {
return $this->memory_exceeded() || $this->time_likely_to_be_exceeded( $processed_actions );
}
/**
* Process actions in the queue.
*
* @author Jeremy Pry
* @param string $context Optional identifer for the context in which this action is being processed, e.g. 'WP CLI' or 'WP Cron'
* Generally, this should be capitalised and not localised as it's a proper noun.
* @return int The number of actions processed.
*/
abstract public function run( $context = '' );
}