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Workers can now be started exclusively from the daemon and other workers

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This commit is contained in:
Michael 2018-06-01 22:09:27 +00:00
parent 69300291f0
commit 28f8beebfc
3 changed files with 125 additions and 63 deletions
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117
bin/daemon.php
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@ -6,8 +6,38 @@
*
* This script was taken from http://php.net/manual/en/function.pcntl-fork.php
*/
function shutdown() {
posix_kill(posix_getpid(), SIGHUP);
use Friendica\App;
use Friendica\BaseObject;
use Friendica\Core\Config;
use Friendica\Core\Worker;
// Ensure that daemon.php is executed from the base path of the installation
if (!file_exists("boot.php") && (sizeof($_SERVER["argv"]) != 0)) {
$directory = dirname($_SERVER["argv"][0]);
if (substr($directory, 0, 1) != "/") {
$directory = $_SERVER["PWD"]."/".$directory;
}
$directory = realpath($directory."/..");
chdir($directory);
}
require_once "boot.php";
require_once "include/dba.php";
$a = new App(dirname(__DIR__));
BaseObject::setApp($a);
require_once ".htconfig.php";
dba::connect($db_host, $db_user, $db_pass, $db_data);
Config::load();
if (!isset($pidfile)) {
die('Please specify a pid file in the variable $pidfile in the .htconfig.php. For example:'."\n".
'$pidfile = "/path/to/daemon.pid";'."\n");
}
if (in_array("start", $_SERVER["argv"])) {
@ -30,27 +60,11 @@ if (empty($_SERVER["argv"][0])) {
die("Unexpected script behaviour. This message should never occur.\n");
}
// Fetch the base directory
$directory = dirname($_SERVER["argv"][0]);
$pid = @file_get_contents($pidfile);
if (substr($directory, 0, 1) != "/") {
$directory = $_SERVER["PWD"]."/".$directory;
}
$directory = realpath($directory."/..");
include $directory."/.htconfig.php";
if (!isset($pidfile)) {
die('Please specify a pid file in the variable $pidfile in the .htconfig.php. For example:'."\n".
'$pidfile = "/path/to/daemon.pid";'."\n");
}
if (in_array($mode, array("stop", "status"))) {
$pid = @file_get_contents($pidfile);
if (!$pid) {
die("Pidfile wasn't found. Is the daemon running?\n");
}
if (empty($pid) && in_array($mode, ["stop", "status"])) {
Config::set('system', 'worker_daemon_mode', false);
die("Pidfile wasn't found. Is the daemon running?\n");
}
if ($mode == "status") {
@ -60,6 +74,7 @@ if ($mode == "status") {
unlink($pidfile);
Config::set('system', 'worker_daemon_mode', false);
die("Daemon process $pid isn't running.\n");
}
@ -68,17 +83,19 @@ if ($mode == "stop") {
unlink($pidfile);
logger("Worker daemon process $pid was killed.", LOGGER_DEBUG);
Config::set('system', 'worker_daemon_mode', false);
die("Worker daemon process $pid was killed.\n");
}
echo "Starting worker daemon.\n";
if (isset($a->config['php_path'])) {
$php = $a->config['php_path'];
} else {
$php = "php";
if (!empty($pid) && posix_kill($pid, 0)) {
die("Daemon process $pid is already running.\n");
}
logger('Starting worker daemon.', LOGGER_DEBUG);
echo "Starting worker daemon.\n";
// Switch over to daemon mode.
if ($pid = pcntl_fork())
return; // Parent
@ -95,32 +112,32 @@ if (posix_setsid() < 0)
if ($pid = pcntl_fork())
return; // Parent
// We lose the database connection upon forking
dba::connect($db_host, $db_user, $db_pass, $db_data);
unset($db_host, $db_user, $db_pass, $db_data);
Config::set('system', 'worker_daemon_mode', true);
// Just to be sure that this script really runs endlessly
set_time_limit(0);
$pid = getmypid();
file_put_contents($pidfile, $pid);
$wait_interval = intval(Config::get('system', 'cron_interval', 5)) * 60;
// Now running as a daemon.
while (true) {
// Just to be sure that this script really runs endlessly
set_time_limit(0);
logger('Call the worker', LOGGER_DEBUG);
Worker::spawnWorker();
// Call the worker
$cmdline = $php.' bin/worker.php';
$executed = false;
if (function_exists('proc_open')) {
$resource = proc_open($cmdline . ' &', array(), $foo, $directory);
if (is_resource($resource)) {
$executed = true;
proc_close($resource);
}
}
if (!$executed) {
exec($cmdline.' spawn');
}
// Now sleep for 5 minutes
sleep(300);
logger("Sleep for $wait_interval seconds - or when a worker needs to be called", LOGGER_DEBUG);
$i = 0;
do {
sleep(1);
} while (($i++ < $wait_interval) && !Worker::IPCJobsExists());
}
function shutdown() {
posix_kill(posix_getpid(), SIGHUP);
}