PHP manager::get_next_scheduled_task方法代码示例

    public function test_get_next_scheduled_task() {
        global $DB;

        $this->resetAfterTest(true);
        // Delete all existing scheduled tasks.
        $DB->delete_records('task_scheduled');
        // Add a scheduled task.

        // A task that runs once per hour.
        $record = new stdClass();
        $record->blocking = true;
        $record->minute = '0';
        $record->hour = '0';
        $record->dayofweek = '*';
        $record->day = '*';
        $record->month = '*';
        $record->component = 'test_scheduled_task';
        $record->classname = '\core\task\scheduled_test_task';

        $DB->insert_record('task_scheduled', $record);
        // And another one to test failures.
        $record->classname = '\core\task\scheduled_test2_task';
        $DB->insert_record('task_scheduled', $record);
        // And disabled test.
        $record->classname = '\core\task\scheduled_test3_task';
        $record->disabled = 1;
        $DB->insert_record('task_scheduled', $record);

        $now = time();

        // Should get handed the first task.
        $task = \core\task\manager::get_next_scheduled_task($now);
        $this->assertInstanceOf('\core\task\scheduled_test_task', $task);
        $task->execute();

        \core\task\manager::scheduled_task_complete($task);
        // Should get handed the second task.
        $task = \core\task\manager::get_next_scheduled_task($now);
        $this->assertInstanceOf('\core\task\scheduled_test2_task', $task);
        $task->execute();

        \core\task\manager::scheduled_task_failed($task);
        // Should not get any task.
        $task = \core\task\manager::get_next_scheduled_task($now);
        $this->assertNull($task);

        // Should get the second task (retry after delay).
        $task = \core\task\manager::get_next_scheduled_task($now + 120);
        $this->assertInstanceOf('\core\task\scheduled_test2_task', $task);
        $task->execute();

        \core\task\manager::scheduled_task_complete($task);

        // Should not get any task.
        $task = \core\task\manager::get_next_scheduled_task($now);
        $this->assertNull($task);
    }

    public function test_get_broken_scheduled_task() {
        global $DB;

        $this->resetAfterTest(true);
        // Delete all existing scheduled tasks.
        $DB->delete_records('task_scheduled');
        // Add a scheduled task.

        // A broken task that runs all the time.
        $record = new stdClass();
        $record->blocking = true;
        $record->minute = '*';
        $record->hour = '*';
        $record->dayofweek = '*';
        $record->day = '*';
        $record->month = '*';
        $record->component = 'test_scheduled_task';
        $record->classname = '\core\task\scheduled_test_task_broken';

        $DB->insert_record('task_scheduled', $record);

        $now = time();
        // Should not get any task.
        $task = \core\task\manager::get_next_scheduled_task($now);
        $this->assertDebuggingCalled();
        $this->assertNull($task);
    }

/**
 * Execute cron tasks
 */
function cron_run()
{
    global $DB, $CFG, $OUTPUT;
    if (CLI_MAINTENANCE) {
        echo "CLI maintenance mode active, cron execution suspended.\n";
        exit(1);
    }
    if (moodle_needs_upgrading()) {
        echo "Moodle upgrade pending, cron execution suspended.\n";
        exit(1);
    }
    require_once $CFG->libdir . '/adminlib.php';
    if (!empty($CFG->showcronsql)) {
        $DB->set_debug(true);
    }
    if (!empty($CFG->showcrondebugging)) {
        set_debugging(DEBUG_DEVELOPER, true);
    }
    core_php_time_limit::raise();
    $starttime = microtime();
    // Increase memory limit
    raise_memory_limit(MEMORY_EXTRA);
    // Emulate normal session - we use admin accoutn by default
    cron_setup_user();
    // Start output log
    $timenow = time();
    mtrace("Server Time: " . date('r', $timenow) . "\n\n");
    // Run all scheduled tasks.
    while (!\core\task\manager::static_caches_cleared_since($timenow) && ($task = \core\task\manager::get_next_scheduled_task($timenow))) {
        mtrace("Execute scheduled task: " . $task->get_name());
        cron_trace_time_and_memory();
        $predbqueries = null;
        $predbqueries = $DB->perf_get_queries();
        $pretime = microtime(1);
        try {
            get_mailer('buffer');
            $task->execute();
            if ($DB->is_transaction_started()) {
                throw new coding_exception("Task left transaction open");
            }
            if (isset($predbqueries)) {
                mtrace("... used " . ($DB->perf_get_queries() - $predbqueries) . " dbqueries");
                mtrace("... used " . (microtime(1) - $pretime) . " seconds");
            }
            mtrace("Scheduled task complete: " . $task->get_name());
            \core\task\manager::scheduled_task_complete($task);
        } catch (Exception $e) {
            if ($DB && $DB->is_transaction_started()) {
                error_log('Database transaction aborted automatically in ' . get_class($task));
                $DB->force_transaction_rollback();
            }
            if (isset($predbqueries)) {
                mtrace("... used " . ($DB->perf_get_queries() - $predbqueries) . " dbqueries");
                mtrace("... used " . (microtime(1) - $pretime) . " seconds");
            }
            mtrace("Scheduled task failed: " . $task->get_name() . "," . $e->getMessage());
            if ($CFG->debugdeveloper) {
                if (!empty($e->debuginfo)) {
                    mtrace("Debug info:");
                    mtrace($e->debuginfo);
                }
                mtrace("Backtrace:");
                mtrace(format_backtrace($e->getTrace(), true));
            }
            \core\task\manager::scheduled_task_failed($task);
        }
        get_mailer('close');
        unset($task);
    }
    // Run all adhoc tasks.
    while (!\core\task\manager::static_caches_cleared_since($timenow) && ($task = \core\task\manager::get_next_adhoc_task($timenow))) {
        mtrace("Execute adhoc task: " . get_class($task));
        cron_trace_time_and_memory();
        $predbqueries = null;
        $predbqueries = $DB->perf_get_queries();
        $pretime = microtime(1);
        try {
            get_mailer('buffer');
            $task->execute();
            if ($DB->is_transaction_started()) {
                throw new coding_exception("Task left transaction open");
            }
            if (isset($predbqueries)) {
                mtrace("... used " . ($DB->perf_get_queries() - $predbqueries) . " dbqueries");
                mtrace("... used " . (microtime(1) - $pretime) . " seconds");
            }
            mtrace("Adhoc task complete: " . get_class($task));
            \core\task\manager::adhoc_task_complete($task);
        } catch (Exception $e) {
            if ($DB && $DB->is_transaction_started()) {
                error_log('Database transaction aborted automatically in ' . get_class($task));
                $DB->force_transaction_rollback();
            }
            if (isset($predbqueries)) {
                mtrace("... used " . ($DB->perf_get_queries() - $predbqueries) . " dbqueries");
                mtrace("... used " . (microtime(1) - $pretime) . " seconds");
            }
//.........这里部分代码省略.........