171 lines
3.8 KiB
PHP
Executable file
171 lines
3.8 KiB
PHP
Executable file
#!/usr/bin/env php
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<?php
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/**
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* @file bin/daemon.php
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* @brief Run the worker from a daemon.
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*
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* This script was taken from http://php.net/manual/en/function.pcntl-fork.php
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*/
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use Friendica\App;
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use Friendica\BaseObject;
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use Friendica\Core\Config;
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use Friendica\Core\Worker;
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// Ensure that daemon.php is executed from the base path of the installation
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if (!file_exists("boot.php") && (sizeof($_SERVER["argv"]) != 0)) {
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$directory = dirname($_SERVER["argv"][0]);
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if (substr($directory, 0, 1) != "/") {
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$directory = $_SERVER["PWD"]."/".$directory;
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}
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$directory = realpath($directory."/..");
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chdir($directory);
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}
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require_once "boot.php";
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require_once "include/dba.php";
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$a = new App(dirname(__DIR__));
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BaseObject::setApp($a);
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require_once ".htconfig.php";
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dba::connect($db_host, $db_user, $db_pass, $db_data);
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Config::load();
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if (!isset($pidfile)) {
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die('Please specify a pid file in the variable $pidfile in the .htconfig.php. For example:'."\n".
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'$pidfile = "/path/to/daemon.pid";'."\n");
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}
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if (in_array("start", $_SERVER["argv"])) {
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$mode = "start";
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}
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if (in_array("stop", $_SERVER["argv"])) {
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$mode = "stop";
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}
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if (in_array("status", $_SERVER["argv"])) {
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$mode = "status";
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}
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if (!isset($mode)) {
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die("Please use either 'start', 'stop' or 'status'.\n");
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}
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if (empty($_SERVER["argv"][0])) {
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die("Unexpected script behaviour. This message should never occur.\n");
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}
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$pid = @file_get_contents($pidfile);
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if (empty($pid) && in_array($mode, ["stop", "status"])) {
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Config::set('system', 'worker_daemon_mode', false);
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die("Pidfile wasn't found. Is the daemon running?\n");
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}
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if ($mode == "status") {
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if (posix_kill($pid, 0)) {
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die("Daemon process $pid is running.\n");
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}
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unlink($pidfile);
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Config::set('system', 'worker_daemon_mode', false);
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die("Daemon process $pid isn't running.\n");
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}
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if ($mode == "stop") {
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posix_kill($pid, SIGTERM);
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unlink($pidfile);
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logger("Worker daemon process $pid was killed.", LOGGER_DEBUG);
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Config::set('system', 'worker_daemon_mode', false);
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die("Worker daemon process $pid was killed.\n");
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}
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if (!empty($pid) && posix_kill($pid, 0)) {
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die("Daemon process $pid is already running.\n");
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}
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logger('Starting worker daemon.', LOGGER_DEBUG);
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echo "Starting worker daemon.\n";
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// Switch over to daemon mode.
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if ($pid = pcntl_fork()) {
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return; // Parent
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}
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fclose(STDIN); // Close all of the standard
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fclose(STDOUT); // file descriptors as we
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fclose(STDERR); // are running as a daemon.
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dba::disconnect();
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register_shutdown_function('shutdown');
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if (posix_setsid() < 0) {
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return;
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}
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if ($pid = pcntl_fork()) {
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return; // Parent
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}
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// We lose the database connection upon forking
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dba::connect($db_host, $db_user, $db_pass, $db_data);
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unset($db_host, $db_user, $db_pass, $db_data);
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Config::set('system', 'worker_daemon_mode', true);
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// Just to be sure that this script really runs endlessly
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set_time_limit(0);
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$pid = getmypid();
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file_put_contents($pidfile, $pid);
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$wait_interval = intval(Config::get('system', 'cron_interval', 5)) * 60;
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$do_cron = true;
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$last_cron = 0;
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// Now running as a daemon.
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while (true) {
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if (!$do_cron && ($last_cron + $wait_interval) < time()) {
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logger('Forcing cron worker call.', LOGGER_DEBUG);
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$do_cron = true;
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}
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Worker::spawnWorker($do_cron);
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if ($do_cron) {
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// We force a reconnect of the database connection.
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// This is done to ensure that the connection don't get lost over time.
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dba::reconnect();
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$last_cron = time();
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}
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logger("Sleeping", LOGGER_DEBUG);
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$i = 0;
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do {
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sleep(1);
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} while (($i++ < $wait_interval) && !Worker::IPCJobsExists());
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if ($i >= $wait_interval) {
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$do_cron = true;
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logger("Woke up after $wait_interval seconds.", LOGGER_DEBUG);
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} else {
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$do_cron = false;
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logger("Worker jobs are calling to be forked.", LOGGER_DEBUG);
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}
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}
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function shutdown() {
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posix_kill(posix_getpid(), SIGHUP);
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}
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