#!/usr/bin/env php
<?php
/**
- * @copyright Copyright (C) 2020, Friendica
+ * @copyright Copyright (C) 2010-2021, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This script was taken from http://php.net/manual/en/function.pcntl-fork.php
*/
+if (php_sapi_name() !== 'cli') {
+ header($_SERVER["SERVER_PROTOCOL"] . ' 403 Forbidden');
+ exit();
+}
+
use Dice\Dice;
+use Friendica\App\Mode;
use Friendica\Core\Logger;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\DI;
+use Friendica\Util\DateTimeFormat;
use Psr\Log\LoggerInterface;
// Get options
$dice = $dice->addRule(LoggerInterface::class,['constructParams' => ['daemon']]);
DI::init($dice);
+\Friendica\Core\Logger\Handler\ErrorHandler::register($dice->create(\Psr\Log\LoggerInterface::class));
$a = DI::app();
if (DI::mode()->isInstall()) {
die("Friendica isn't properly installed yet.\n");
}
+DI::mode()->setExecutor(Mode::DAEMON);
+
DI::config()->load();
if (empty(DI::config()->get('system', 'pidfile'))) {
if (!$foreground) {
echo "Starting worker daemon.\n";
- // Switch over to daemon mode.
- if ($pid = pcntl_fork()) {
- return; // Parent
- }
-
- fclose(STDIN); // Close all of the standard
-
- // Enabling this seem to block a running php process with 100% CPU usage when there is an outpout
- // fclose(STDOUT); // file descriptors as we
- // fclose(STDERR); // are running as a daemon.
-
DBA::disconnect();
+ // Fork a daemon process
+ $pid = pcntl_fork();
+ if ($pid == -1) {
+ echo "Daemon couldn't be forked.\n";
+ Logger::warning('Could not fork daemon');
+ exit(1);
+ } elseif ($pid) {
+ // The parent process continues here
+ echo 'Child process started with pid ' . $pid . ".\n";
+ Logger::notice('Child process started', ['pid' => $pid]);
+ file_put_contents($pidfile, $pid);
+ exit(0);
+ }
+
+ // We now are in the child process
register_shutdown_function('shutdown');
+ // Make the child the main process, detach it from the terminal
if (posix_setsid() < 0) {
return;
}
- if ($pid = pcntl_fork()) {
- return; // Parent
- }
-
- $pid = getmypid();
- file_put_contents($pidfile, $pid);
+ // Closing all existing connections with the outside
+ fclose(STDIN);
- // We lose the database connection upon forking
- DBA::reconnect();
+ // And now connect the database again
+ DBA::connect();
}
DI::config()->set('system', 'worker_daemon_mode', true);
$do_cron = true;
}
- Worker::spawnWorker($do_cron);
+ if ($do_cron || (!DI::system()->isMaxLoadReached() && Worker::entriesExists() && Worker::isReady())) {
+ Worker::spawnWorker($do_cron);
+ } else {
+ Logger::info('Cool down for 5 seconds', ['pid' => $pid]);
+ sleep(5);
+ }
if ($do_cron) {
// We force a reconnect of the database connection.
$last_cron = time();
}
- Logger::info("Sleeping", ["pid" => $pid]);
$start = time();
+ Logger::info("Sleeping", ["pid" => $pid, 'until' => gmdate(DateTimeFormat::MYSQL, $start + $wait_interval)]);
+
do {
$seconds = (time() - $start);
// Background: After jobs had been started, they often fork many workers.
// To not waste too much time, the sleep period increases.
$arg = (($seconds + 1) / ($wait_interval / 9)) + 1;
- $sleep = round(log10($arg) * 1000000, 0);
+ $sleep = min(1000000, round(log10($arg) * 1000000, 0));
usleep($sleep);
+ $pid = pcntl_waitpid(-1, $status, WNOHANG);
+ if ($pid > 0) {
+ Logger::info('Children quit via pcntl_waitpid', ['pid' => $pid, 'status' => $status]);
+ }
+
$timeout = ($seconds >= $wait_interval);
} while (!$timeout && !Worker::IPCJobsExists());