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