/**
* Constructor.
*
* @param Master $master The master object
* @param integer $pid The child process id or null if this is the child
*
* @throws \Exception
* @throws \RuntimeException
*/
public function __construct(Master $master, $pid = null)
{
$this->master = $master;
$directions = array('up', 'down');
if (null === $pid) {
// child
$pid = posix_getpid();
$pPid = posix_getppid();
$modes = array('write', 'read');
} else {
// parent
$pPid = null;
$modes = array('read', 'write');
}
$this->pid = $pid;
$this->ppid = $pPid;
foreach (array_combine($directions, $modes) as $direction => $mode) {
$fifo = $this->getPath($direction);
if (!file_exists($fifo) && !posix_mkfifo($fifo, 0600) && 17 !== ($error = posix_get_last_error())) {
throw new \Exception(sprintf('Error while creating FIFO: %s (%d)', posix_strerror($error), $error));
}
$this->{$mode} = fopen($fifo, $mode[0]);
if (false === ($this->{$mode} = fopen($fifo, $mode[0]))) {
throw new \RuntimeException(sprintf('Unable to open %s FIFO.', $mode));
}
}
}
/**
* 进程启动
*/
public function start()
{
// 安装信号处理函数
$this->installSignal();
// 添加accept事件
$ret = $this->event->add($this->mainSocket, Man\Core\Events\BaseEvent::EV_READ, array($this, 'accept'));
// 创建内部通信套接字
$start_port = Man\Core\Lib\Config::get($this->workerName . '.lan_port_start');
$this->lanPort = $start_port - posix_getppid() + posix_getpid();
$this->lanIp = Man\Core\Lib\Config::get($this->workerName . '.lan_ip');
if (!$this->lanIp) {
$this->notice($this->workerName . '.lan_ip not set');
$this->lanIp = '127.0.0.1';
}
$error_no = 0;
$error_msg = '';
$this->innerMainSocket = stream_socket_server("udp://" . $this->lanIp . ':' . $this->lanPort, $error_no, $error_msg, STREAM_SERVER_BIND);
if (!$this->innerMainSocket) {
$this->notice('create innerMainSocket fail and exit ' . $error_no . ':' . $error_msg);
sleep(1);
exit(0);
} else {
stream_set_blocking($this->innerMainSocket, 0);
}
$this->registerAddress("udp://" . $this->lanIp . ':' . $this->lanPort);
// 添加读udp事件
$this->event->add($this->innerMainSocket, Man\Core\Events\BaseEvent::EV_READ, array($this, 'recvUdp'));
// 初始化到worker的通信地址
$this->initWorkerAddresses();
// 主体循环,整个子进程会阻塞在这个函数上
$ret = $this->event->loop();
$this->notice('worker loop exit');
exit(0);
}
public static function init()
{
self::$pid = \posix_getpid();
self::$ppid = \posix_getppid();
self::$child = array();
self::$alias = array();
self::$user_events = array();
self::$shm_to_pid = array();
self::$status['start_time'] = time();
// self::$shm_to_parent = -1;
if (!self::$do_once) {
// 初始化事件对象
if (extension_loaded('libevent')) {
self::$events = new Libevent();
} else {
self::$events = new Select();
}
self::$shm = new Shm(__FILE__, 'a');
// 注册用户信号SIGUSR1处理函数
self::onSysEvent(SIGUSR1, EventInterface::EV_SIGNAL, array("\\cli\\proc\\Process", 'defaultSigusr1Cbk'));
// 注册子进程退出处理函数
self::onSysEvent(SIGCHLD, EventInterface::EV_SIGNAL, array("\\cli\\proc\\Process", 'defaultSigchldCbk'));
// 注册用户信号SIGUSR2处理函数
self::onSysEvent(SIGUSR2, EventInterface::EV_SIGNAL, array("\\cli\\proc\\Process", 'defaultSigusr2Cbk'));
// 注册exit回调函数
register_shutdown_function(function () {
Process::closeShm();
});
self::$do_once = true;
}
}
/**
* Constructor.
*
* @param resource $fileStream File stream
* @param string $messageTemplate Message template.
* @param array $replacements Replacements for template
*/
public function __construct($fileStream, $messageTemplate = null, array $replacements = [])
{
if (empty($replacements)) {
$replacements = array('{date}' => date('Y-m-d H:i:s'), '{message}' => null, '{pid}' => posix_getpid(), '{ppid}' => posix_getppid());
}
$this->messageTemplate = $messageTemplate;
$this->fileStream = $fileStream;
$this->replacements = $replacements;
}
private function checkExit()
{
$ppid = posix_getppid();
if ($this->ppid == 0) {
$this->ppid = $ppid;
}
if ($this->ppid != $ppid) {
$this->_exit();
}
}
/**
* завершение работы
*/
public function shutdown()
{
try {
$this->onShutdown();
static::log(getmypid() . ' is getting shutdown', Logger::L_DEBUG);
static::log('Parent PID - ' . posix_getppid(), Logger::L_TRACE);
parent::shutdown();
} catch (\Exception $e) {
exit(1);
}
}
public final function stillWorking()
{
if (!posix_isatty(STDOUT)) {
posix_kill(posix_getppid(), SIGUSR1);
}
if ($this->traceMemory) {
$memuse = number_format(memory_get_usage() / 1024, 1);
$daemon = get_class($this);
fprintf(STDERR, '%s', "<RAMS> {$daemon} Memory Usage: {$memuse} KB\n");
}
}
function testSiteSet()
{
if ($this->is_windows()) {
$this->markTestSkipped('Site-set not currently available on Windows.');
}
$tmp_path = UNISH_TMP;
putenv("TMPDIR={$tmp_path}");
$posix_pid = posix_getppid();
$expected_file = UNISH_TMP . '/drush-env/drush-drupal-site-' . $posix_pid;
$filename = drush_sitealias_get_envar_filename();
$this->assertEquals($expected_file, $filename);
}
protected function waitChild()
{
if (!$this->pid) {
$file = sys_get_temp_dir() . '/parallel' . posix_getppid() . '.sock';
$address = 'unix://' . $file;
$result = $this->run();
if ($client = stream_socket_client($address)) {
stream_socket_sendto($client, serialize([posix_getpid(), $result]));
fclose($client);
}
posix_kill(posix_getpid(), SIGHUP);
return;
}
}
/**
*
* @return Comos\Qpm\Process\Process returns null on failure
* It cannot be realtime in some cases.
* e.g.
* $child = Process::current()->folkByCallable($fun);
* echo $child->getParent()->getPid();
* If child process changed the parent, you would get the old parent ID.
*/
public function getParent()
{
if ($this->_parentProcessId) {
return self::process($this->_parentProcessId);
}
if ($this->isCurrent()) {
$ppid = \posix_getppid();
if (!$ppid) {
return null;
}
return self::process($ppid);
}
return null;
}
/**
* Constructor.
*
* @param integer $pid The child process id or null if this is the child
* @param integer $signal The signal to send after writing to shared memory
*/
public function __construct($pid = null, $signal = null)
{
if (null === $pid) {
// child
$pid = posix_getpid();
$ppid = posix_getppid();
} else {
// parent
$ppid = null;
}
$this->pid = $pid;
$this->ppid = $ppid;
$this->signal = $signal;
}
public static function buildProd($dump = null)
{
$dump = $dump ?: rtrim(sys_get_temp_dir(), "/") . "/" . posix_getppid();
$storage = CodeStorage::create($dump);
if (extension_loaded("apc")) {
$cache = new ApcCache("Spot");
} else {
if (extension_loaded("xcache")) {
$cache = new XcacheCache();
} else {
$cache = new PhpFileCache($dump);
}
}
return new Spot(Spot::PROD_MODE, $dump, $cache, $storage);
}
function fork()
{
$pid = pcntl_fork();
if ($pid == -1) {
throw new Exception('fork error on Task object');
} elseif ($pid) {
// we are in the parent class
$this->pid = $pid;
// echo "< in parent with pid {$this->pid}\n";
} else {
// we are in the child ᶘ ᵒᴥᵒᶅ
$this->ppid = posix_getppid();
$this->pid = posix_getpid();
$this->run();
exit(0);
}
}
public function init()
{
$pid = pcntl_fork();
if ($pid == -1) {
//Return message for the
//echo json_encode(array('ERROR' => 1, 'MESSAGE' => 'CANNOT FORK, check php configuration', 'CODE_ERROR' => ERROR_FORK));
exit(1);
} elseif ($pid) {
//echo json_encode(array('PID' => $pid, 'ERROR' => 0, 'MESSAGE' => 'Running tasks...', 'PROGRESS' => 0));
exit(0);
} else {
//Daemonize the element
$this->father_pid = posix_getppid();
$sid = posix_setsid();
$this->pid = getmypid();
echo $this->father_pid;
$this->log(array('ERROR' => 0, 'MESSAGE' => 'Running daemon...', 'PROGRESS' => 0));
}
}
public function forkChild($callback, $data)
{
$pid = pcntl_fork();
switch ($pid) {
case 0:
// Child process
$this->isChild = true;
call_user_func_array($callback, $data);
posix_kill(posix_getppid(), SIGCHLD);
exit;
case -1:
// Parent process, fork failed
throw new \Exception("Out of memory!");
default:
// Parent process, fork succeeded
$this->processes[$pid] = true;
return $pid;
}
}
function check_files_change($monitor_dir)
{
// 递归遍历目录
$dir_iterator = new RecursiveDirectoryIterator($monitor_dir);
$iterator = new RecursiveIteratorIterator($dir_iterator);
$time_now = time();
foreach ($iterator as $file) {
// 只监控php文件
if (pathinfo($file, PATHINFO_EXTENSION) != 'php') {
continue;
}
// 在最近1秒内有修改
if ($time_now - $file->getMTime() == 1) {
echo $file . " update and reload\n";
// 给父进程发送reload信号
posix_kill(posix_getppid(), SIGUSR1);
}
}
}
function check_files_change($inotify_fd)
{
global $monitor_files;
// 读取有哪些文件事件
$events = inotify_read($inotify_fd);
if ($events) {
// 检查哪些文件被更新了
foreach ($events as $ev) {
// 更新的文件
$file = $monitor_files[$ev['wd']];
echo $file . " update and reload\n";
unset($monitor_files[$ev['wd']]);
// 需要把文件重新加入监控
$wd = inotify_add_watch($inotify_fd, $file, IN_MODIFY);
$monitor_files[$wd] = $file;
}
// 给父进程也就是主进程发送reload信号
posix_kill(posix_getppid(), SIGUSR1);
}
}
function run($work)
{
if (1 === posix_getppid()) {
return;
}
if ($this->user) {
if (!posix_setgid($this->user['gid']) || !posix_setuid($this->user['uid'])) {
throw new \RuntimeException("Unable to switch to user '{$this->user['name']}'");
}
}
Utility::fork(function () use($work) {
if (-1 === posix_setsid()) {
throw new \RuntimeException('Unable to set setsid()');
}
if (false === chdir('/')) {
throw new \RuntimeException('Unable to chdir(\'/\')');
}
umask(0);
Utility::fork($work);
});
}
public static function kill()
{
$rets = $match = array();
$process_lists = [isset(self::$serverConfig['server']['master_process_name']) ? self::$serverConfig['server']['master_process_name'] : 'ypf:swoole-master', isset(self::$serverConfig['server']['worker_process_name']) ? self::$serverConfig['server']['worker_process_name'] : 'ypf:swoole-worker-%d', isset(self::$serverConfig['server']['task_worker_process_name']) ? self::$serverConfig['server']['task_worker_process_name'] : 'ypf:swoole-task-worker-%d', isset(self::$serverConfig['server']['cron_worker_process_name']) ? self::$serverConfig['server']['cron_worker_process_name'] : 'ypf:swoole-cron-worker'];
foreach ($process_lists as $i => $process_name) {
$process_name = str_replace("%d", "", $process_name);
exec("ps aux | grep -E '" . $process_name . "' | grep -v grep", $rets[$i]);
}
$this_pid = posix_getpid();
$this_ppid = posix_getppid();
foreach ($rets as $ret) {
foreach ($ret as $line) {
if (preg_match("/^[\\S]+\\s+(\\d+)\\s+/", $line, $match)) {
$tmp_pid = $match[1];
if ($this_pid != $tmp_pid && $this_ppid != $tmp_pid) {
posix_kill($tmp_pid, 9);
}
}
}
}
exit("server killed ..." . PHP_EOL);
}
/**
* @param string $instance
* @return void
*/
public function forked(string $instance = 'child')
{
$this->pid = posix_getpid();
$this->parentPid = posix_getppid();
$this->setInstanceName($instance);
}
<?php
declare (ticks=1);
define('SCALR_MULTITHREADING', true);
define("NO_TEMPLATES", true);
define("NO_SESSIONS", true);
require_once __DIR__ . "/../src/prepend.inc.php";
$Logger = \Scalr::getContainer()->logger('Application');
$fname = basename($argv[0]);
$JobLauncher = new \Scalr\System\Pcntl\JobLauncher(dirname(__FILE__));
// DBQueueEvent - it is a daemon process so we must skeep this check
if ($JobLauncher->GetProcessName() != 'DBQueueEvent') {
$Shell = new Scalr_System_Shell();
// Set terminal width
putenv("COLUMNS=200");
// Execute command
$parent_pid = posix_getppid();
$ps = $Shell->queryRaw("ps x -o pid,command | grep -v -E '^ *(" . $parent_pid . "|" . posix_getpid() . ") | ps x' | grep '" . dirname(__FILE__) . "' | egrep '\\-\\-{$JobLauncher->GetProcessName()}\$'");
if ($ps) {
$Logger->info("'{$fname} --{$JobLauncher->GetProcessName()}' already running. Exiting.");
exit;
}
}
$Logger->info(sprintf("Starting %s cronjob...", $JobLauncher->GetProcessName()));
$JobLauncher->Launch(7, 180);
/**
* 当Gateway启动的时候触发的回调函数
* @return void
*/
public function onWorkerStart()
{
// 分配一个内部通讯端口
$this->lanPort = function_exists('posix_getppid') ? $this->startPort - posix_getppid() + posix_getpid() : $this->startPort;
if ($this->lanPort < 0 || $this->lanPort >= 65535) {
$this->lanPort = rand($this->startPort, 65535);
}
// 如果有设置心跳，则定时执行
if ($this->pingInterval > 0) {
$timer_interval = $this->pingNotResponseLimit > 0 ? $this->pingInterval / 2 : $this->pingInterval;
Timer::add($timer_interval, array($this, 'ping'));
}
if (!class_exists('\\Protocols\\GatewayProtocol')) {
class_alias('\\GatewayWorker\\Protocols\\GatewayProtocol', 'Protocols\\GatewayProtocol');
}
// 初始化gateway内部的监听，用于监听worker的连接已经连接上发来的数据
$this->_innerTcpWorker = new Worker("GatewayProtocol://{$this->lanIp}:{$this->lanPort}");
$this->_innerTcpWorker->listen();
$this->_innerUdpWorker = new Worker("GatewayProtocol://{$this->lanIp}:{$this->lanPort}");
$this->_innerUdpWorker->transport = 'udp';
$this->_innerUdpWorker->listen();
// 重新设置自动加载根目录
Autoloader::setRootPath($this->_appInitPath);
// 设置内部监听的相关回调
$this->_innerTcpWorker->onMessage = array($this, 'onWorkerMessage');
$this->_innerUdpWorker->onMessage = array($this, 'onWorkerMessage');
$this->_innerTcpWorker->onConnect = array($this, 'onWorkerConnect');
$this->_innerTcpWorker->onClose = array($this, 'onWorkerClose');
// 注册gateway的内部通讯地址，worker去连这个地址，以便gateway与worker之间建立起TCP长连接
if (!$this->registerAddress()) {
$this->log('registerAddress fail and exit');
Worker::stopAll();
}
if ($this->_onWorkerStart) {
call_user_func($this->_onWorkerStart, $this);
}
}
/**
* 向shell输出一条消息
*
* @param string $message
*/
private static function message($message = '')
{
printf(PHP_EOL . "%s %d %d %s" . PHP_EOL, date('Y-m-d H:i:s'), posix_getpid(), posix_getppid(), $message);
}
VERIFY($ret != false);
VERIFY(count((array) $ret) != 0);
$bynam = posix_getgrnam($ret['name']);
VS($ret, $bynam);
$ret = posix_getgrnam("root");
VERIFY($ret != false);
VERIFY(count((array) $ret) != 0);
$bygid = posix_getgrgid($ret['gid']);
VS($ret, $bygid);
// $ret = posix_getgroups();
// VERIFY($ret != false);
// VERIFY(count((array)$ret) != 0);
VERIFY(posix_getpgid(0));
VERIFY(posix_getpgrp());
VERIFY(posix_getpid());
VERIFY(posix_getppid());
$ret = posix_getpwnam("root");
VERIFY($ret != false);
VERIFY(count((array) $ret) != 0);
VS(posix_getpwnam(""), false);
VS(posix_getpwnam(-1), false);
$ret = posix_getpwuid(0);
VERIFY($ret != false);
VERIFY(count((array) $ret) != 0);
VS(posix_getpwuid(-1), false);
$ret = posix_getrlimit();
VERIFY($ret != false);
VERIFY(count((array) $ret) != 0);
VERIFY(posix_getsid(posix_getpid()));
$tmpfifo = tempnam('/tmp', 'vmmkfifotest');
unlink($tmpfifo);
$pid = pcntl_fork();
if ($pid < 0) {
error_log("unable to fork daemon");
$script->shutdown(1, "unable to fork daemon");
}
// If we got a good PID, then we can wait until the daemon tells us to terminate
if ($pid > 0) {
// Wait for confirmation from the child via SIGTERM or SIGCHLD, or
// for two seconds to elapse (SIGALRM). pause() should not return. */
sleep(10);
$script->shutdown(1, "Failed spawning the daemon process");
}
$pidFp = fopen($pidFile, 'w');
flock($pidFp, LOCK_EX | LOCK_NB);
// At this point we are executing as the child process
$parentProcessID = posix_getppid();
/* Cancel certain signals */
pcntl_signal(SIGCHLD, SIG_DFL);
// A child process dies
pcntl_signal(SIGTSTP, SIG_IGN);
// Various TTY signals
pcntl_signal(SIGTTOU, SIG_IGN);
pcntl_signal(SIGTTIN, SIG_IGN);
pcntl_signal(SIGHUP, SIG_IGN);
// Ignore hangup signal
$sid = posix_setsid();
if ($sid < 0) {
error_log("unable to create a new session");
$script->shutdown(1, 'unable to create a new session');
}
pcntl_signal(SIGTERM, $daemonSignalHandler);
/**
* Sends the signal to parent process
* @param integer Signal's number
* @return void
*/
private function backsig($sig)
{
return posix_kill(posix_getppid(), $sig);
}
/**
* @param bool $fork
* @param bool $restart
* @throws Exception
*/
public function runProcess($fork = true, $restart = false)
{
$pidFile = $this->getProcess()->getPidFile();
$lockFile = $this->getProcess()->getLockFile();
if (is_file($pidFile) && is_writable($pidFile)) {
unlink($pidFile);
}
if (is_file($lockFile) && is_writable($lockFile)) {
unlink($lockFile);
}
$this->changeUser();
if ($fork) {
$pid = pcntl_fork();
}
if (!$fork || isset($pid) && $pid !== -1 && !$pid) {
$this->getProcess()->setPid(posix_getpid());
if (isset($pid) && $pid !== -1 && !$pid) {
$parentPid = posix_getppid();
if ($parentPid) {
posix_kill(posix_getppid(), SIGUSR2);
}
}
$this->lock = $this->getProcess()->lock();
if (null !== $this->logger) {
$this->logger->info("Started GearmanWorker Server");
}
$this->signalHandlers();
$this->createLoop($restart);
} elseif ($fork && isset($pid) && $pid) {
$wait = true;
pcntl_signal(SIGUSR2, function () use(&$wait) {
$wait = false;
});
while ($wait) {
pcntl_waitpid($pid, $status, WNOHANG);
pcntl_signal_dispatch();
}
}
}
/**
* display info
*
* @return
*/
public function _log($line, $flag = true)
{
if ($flag) {
printf("%s\t%d\t%d\t%s\n", date('Y-m-d H:i:s'), posix_getpid(), posix_getppid(), $line);
} else {
printf("\n%s\n", $line);
}
}
public function shutdown($hard = FALSE)
{
if (Daemon::$settings['logevents']) {
Daemon::log('[WORKER ' . $this->pid . '] event shutdown(' . ($hard ? 'HARD' : '') . ') invoked.');
}
if (Daemon::$settings['throwexceptiononshutdown']) {
throw new Exception('event shutdown');
}
@ob_flush();
if ($this->terminated === TRUE) {
if ($hard) {
exit(0);
}
return;
}
$this->terminated = TRUE;
$this->closeSockets();
$this->setStatus(3);
if ($hard) {
exit(0);
}
$reloadReady = $this->appInstancesReloadReady();
foreach ($this->queue as $r) {
if ($r instanceof stdClass) {
continue;
}
if ($r->running) {
$r->finish(-2);
}
}
$n = 0;
while ($this->queueWait && sizeof($this->queue) > 0 || !$reloadReady) {
if ($n++ === 100) {
$reloadReady = $this->appInstancesReloadReady();
$n = 0;
}
pcntl_signal_dispatch();
event_add($this->timeoutEvent, $this->microsleep);
event_base_loop($this->eventBase, EVLOOP_ONCE);
$this->readPool();
$this->runQueue();
}
posix_kill(posix_getppid(), SIGCHLD);
exit(0);
}
/**
* 进程启动
*/
public function start()
{
// 安装信号处理函数
$this->installSignal();
// 添加accept事件
$ret = $this->event->add($this->mainSocket, Man\Core\Events\BaseEvent::EV_READ, array($this, 'accept'));
// 创建内部通信套接字，用于与BusinessWorker通讯
$start_port = Man\Core\Lib\Config::get($this->workerName . '.lan_port_start');
// 计算本进程监听的ip端口
if (strpos(\Man\Core\Master::VERSION, 'mt')) {
$this->lanPort = $start_port + \Thread::getCurrentThreadId() % 100;
} else {
$this->lanPort = $start_port - posix_getppid() + posix_getpid();
}
// 如果端口不在合法范围
if ($this->lanPort < 0 || $this->lanPort >= 65535) {
$this->lanPort = rand($start_port, 65535);
}
// 如果
$this->lanIp = Man\Core\Lib\Config::get($this->workerName . '.lan_ip');
if (!$this->lanIp) {
$this->notice($this->workerName . '.lan_ip not set');
$this->lanIp = '127.0.0.1';
}
$error_no_udp = $error_no_tcp = 0;
$error_msg_udp = $error_msg_tcp = '';
// 执行监听
$this->innerMainSocketUdp = stream_socket_server("udp://" . $this->lanIp . ':' . $this->lanPort, $error_no_udp, $error_msg_udp, STREAM_SERVER_BIND);
$this->innerMainSocketTcp = stream_socket_server("tcp://" . $this->lanIp . ':' . $this->lanPort, $error_no_tcp, $error_msg_tcp, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN);
// 出错，退出，下次会换个端口
if (!$this->innerMainSocketUdp || !$this->innerMainSocketTcp) {
$this->notice('create innerMainSocket udp or tcp fail and exit ' . $error_msg_udp . $error_msg_tcp);
$this->stop();
} else {
stream_set_blocking($this->innerMainSocketUdp, 0);
stream_set_blocking($this->innerMainSocketTcp, 0);
}
// 注册套接字
if (!$this->registerAddress($this->lanIp . ':' . $this->lanPort)) {
$this->notice('registerAddress fail and exit');
$this->stop();
}
// 添加读udp/tcp事件
$this->event->add($this->innerMainSocketUdp, Man\Core\Events\BaseEvent::EV_READ, array($this, 'recvInnerUdp'));
$this->event->add($this->innerMainSocketTcp, Man\Core\Events\BaseEvent::EV_READ, array($this, 'acceptInnerTcp'));
// 初始化心跳包时间间隔
$ping_interval = \Man\Core\Lib\Config::get($this->workerName . '.ping_interval');
if ((int) $ping_interval > 0) {
$this->pingInterval = (int) $ping_interval;
}
// 获取心跳包数据
$ping_data_or_path = \Man\Core\Lib\Config::get($this->workerName . '.ping_data');
if (is_file($ping_data_or_path)) {
$this->pingData = file_get_contents($ping_data_or_path);
} else {
$this->pingData = $ping_data_or_path;
}
// 不返回心跳回应（客户端发来的任何数据都算是回应）的限定值
$this->pingNotResponseLimit = (int) \Man\Core\Lib\Config::get($this->workerName . '.ping_not_response_limit');
// 设置定时任务，发送心跳
if ($this->pingInterval > 0) {
\Man\Core\Lib\Task::init($this->event);
\Man\Core\Lib\Task::add($this->pingInterval, array($this, 'ping'));
}
// 主体循环,整个子进程会阻塞在这个函数上
$ret = $this->event->loop();
// 下面正常不会执行到
$this->notice('worker loop exit');
// 执行到就退出
exit(0);
}
