4 * @copyright Copyright (C) 2010-2023, the Friendica project
6 * @license GNU AGPL version 3 or any later version
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU Affero General Public License as
10 * published by the Free Software Foundation, either version 3 of the
11 * License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU Affero General Public License for more details.
18 * You should have received a copy of the GNU Affero General Public License
19 * along with this program. If not, see <https://www.gnu.org/licenses/>.
24 * Run the worker from a daemon.
26 * This script was taken from http://php.net/manual/en/function.pcntl-fork.php
28 if (php_sapi_name() !== 'cli') {
29 header($_SERVER['SERVER_PROTOCOL'] . ' 403 Forbidden');
34 use Friendica\App\Mode;
35 use Friendica\Core\Logger;
36 use Friendica\Core\Update;
37 use Friendica\Core\Worker;
38 use Friendica\Database\DBA;
40 use Friendica\Util\DateTimeFormat;
44 $longopts = ['foreground'];
45 $options = getopt($shortopts, $longopts);
47 // Ensure that daemon.php is executed from the base path of the installation
48 if (!file_exists('index.php') && (sizeof($_SERVER['argv']) != 0)) {
49 $directory = dirname($_SERVER['argv'][0]);
51 if (substr($directory, 0, 1) != '/') {
52 $directory = $_SERVER['PWD'] . '/' . $directory;
54 $directory = realpath($directory . '/..');
59 require dirname(__DIR__) . '/vendor/autoload.php';
61 $dice = (new Dice())->addRules(include __DIR__ . '/../static/dependencies.config.php');
62 /** @var \Friendica\Core\Addon\Capabilities\ICanLoadAddons $addonLoader */
63 $addonLoader = $dice->create(\Friendica\Core\Addon\Capabilities\ICanLoadAddons::class);
64 $dice = $dice->addRules($addonLoader->getActiveAddonConfig('dependencies'));
65 $dice = $dice->addRule(LoggerInterface::class,['constructParams' => [Logger\Capabilities\LogChannel::DAEMON]]);
68 \Friendica\Core\Logger\Handler\ErrorHandler::register($dice->create(\Psr\Log\LoggerInterface::class));
70 if (DI::mode()->isInstall()) {
71 die("Friendica isn't properly installed yet.\n");
74 DI::mode()->setExecutor(Mode::DAEMON);
76 DI::config()->reload();
78 if (empty(DI::config()->get('system', 'pidfile'))) {
80 Please set system.pidfile in config/local.config.php. For example:
83 'pidfile' => '/path/to/daemon.pid',
89 $pidfile = DI::config()->get('system', 'pidfile');
91 if (in_array('start', $_SERVER['argv'])) {
95 if (in_array('stop', $_SERVER['argv'])) {
99 if (in_array('status', $_SERVER['argv'])) {
103 $foreground = array_key_exists('f', $options) || array_key_exists('foreground', $options);
106 die("Please use either 'start', 'stop' or 'status'.\n");
109 if (empty($_SERVER['argv'][0])) {
110 die("Unexpected script behaviour. This message should never occur.\n");
115 if (is_readable($pidfile)) {
116 $pid = intval(file_get_contents($pidfile));
119 if (empty($pid) && in_array($mode, ['stop', 'status'])) {
120 DI::keyValue()->set('worker_daemon_mode', false);
121 die("Pidfile wasn't found. Is the daemon running?\n");
124 if ($mode == 'status') {
125 if (posix_kill($pid, 0)) {
126 die("Daemon process $pid is running.\n");
131 DI::keyValue()->set('worker_daemon_mode', false);
132 die("Daemon process $pid isn't running.\n");
135 if ($mode == 'stop') {
136 posix_kill($pid, SIGTERM);
140 Logger::notice('Worker daemon process was killed', ['pid' => $pid]);
142 DI::keyValue()->set('worker_daemon_mode', false);
143 die("Worker daemon process $pid was killed.\n");
146 if (!empty($pid) && posix_kill($pid, 0)) {
147 die("Daemon process $pid is already running.\n");
150 Logger::notice('Starting worker daemon.', ['pid' => $pid]);
153 echo "Starting worker daemon.\n";
157 // Fork a daemon process
160 echo "Daemon couldn't be forked.\n";
161 Logger::warning('Could not fork daemon');
164 // The parent process continues here
165 echo 'Child process started with pid ' . $pid . ".\n";
166 Logger::notice('Child process started', ['pid' => $pid]);
167 file_put_contents($pidfile, $pid);
171 // We now are in the child process
172 register_shutdown_function('shutdown');
174 // Make the child the main process, detach it from the terminal
175 if (posix_setsid() < 0) {
179 // Closing all existing connections with the outside
182 // And now connect the database again
186 DI::keyValue()->set('worker_daemon_mode', true);
188 // Just to be sure that this script really runs endlessly
191 $wait_interval = intval(DI::config()->get('system', 'cron_interval', 5)) * 60;
196 // Now running as a daemon.
198 // Check the database structure and possibly fixes it
199 Update::check(DI::basePath(), true);
201 if (!$do_cron && ($last_cron + $wait_interval) < time()) {
202 Logger::info('Forcing cron worker call.', ['pid' => $pid]);
206 if ($do_cron || (!DI::system()->isMaxLoadReached() && Worker::entriesExists() && Worker::isReady())) {
207 Worker::spawnWorker($do_cron);
209 Logger::info('Cool down for 5 seconds', ['pid' => $pid]);
214 // We force a reconnect of the database connection.
215 // This is done to ensure that the connection don't get lost over time.
222 Logger::info('Sleeping', ['pid' => $pid, 'until' => gmdate(DateTimeFormat::MYSQL, $start + $wait_interval)]);
225 $seconds = (time() - $start);
227 // logarithmic wait time calculation.
228 // Background: After jobs had been started, they often fork many workers.
229 // To not waste too much time, the sleep period increases.
230 $arg = (($seconds + 1) / ($wait_interval / 9)) + 1;
231 $sleep = min(1000000, round(log10($arg) * 1000000, 0));
234 $pid = pcntl_waitpid(-1, $status, WNOHANG);
236 Logger::info('Children quit via pcntl_waitpid', ['pid' => $pid, 'status' => $status]);
239 $timeout = ($seconds >= $wait_interval);
240 } while (!$timeout && !Worker\IPC::JobsExists());
244 Logger::info('Woke up after $wait_interval seconds.', ['pid' => $pid, 'sleep' => $wait_interval]);
247 Logger::info('Worker jobs are calling to be forked.', ['pid' => $pid]);
251 function shutdown() {
252 posix_kill(posix_getpid(), SIGTERM);
253 posix_kill(posix_getpid(), SIGHUP);