catchAdmin/catch/monitor/command/process/RegisterSignal.php
2021-01-17 11:21:52 +08:00

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<?php
// +----------------------------------------------------------------------
// | CatchAdmin [Just Like ]
// +----------------------------------------------------------------------
// | Copyright (c) 2017~{$year} http://catchadmin.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( https://github.com/yanwenwu/catch-admin/blob/master/LICENSE.txt )
// +----------------------------------------------------------------------
// | Author: JaguarJack [ njphper@gmail.com ]
// +----------------------------------------------------------------------
namespace catchAdmin\monitor\command\process;
use catchAdmin\monitor\model\Crontab;
use catcher\facade\FileSystem;
use Cron\CronExpression;
use EasyWeChat\Kernel\Messages\News;
use think\cache\driver\Redis;
trait RegisterSignal
{
public function registerSignal()
{
// 退出信号
$this->exit();
// 等待子进程退出
$this->waitWorkersExit();
// 动态扩容
$this->workerChecked();
// 重启进程
$this->reload();
// 统计信息
$this->showStatus();
}
/**
* 进程退出
*
* @time 2020年07月21日
* @return void
*/
protected function exit()
{
Process::signal(SIGTERM, function ($signal) {
foreach ($this->workerIds as $pid => $v) {
if (isset($this->workerIds[$pid])) {
unset($this->workerIds[$pid]);
}
Process::kill($pid, SIGTERM);
}
Process::kill(self::getMasterPid(), SIGKILL);
});
Process::signal(SIGINT, function ($signal) {
foreach ($this->workerIds as $pid => $v) {
if (isset($this->workerIds[$pid])) {
unset($this->workerIds[$pid]);
}
Process::kill($pid, SIGKILL);
}
Process::kill(self::getMasterPid(), SIGKILL);
});
}
/**
* 子进程退出
*
* @time 2020年07月21日
* @return void
*/
protected function waitWorkersExit()
{
Process::signal(SIGCHLD, function ($signal) {
});
}
/**
* 进程检测
*
* @time 2020年07月21日
* @return void
*/
protected function workerChecked()
{
Process::signal(SIGALRM, function ($signal) {
$process = new Process(function (Process $process) {
$crontabs = Crontab::where('status', Crontab::ENABLE)
->where('tactics', '<>', Crontab::EXECUTE_FORBIDDEN)
->select()->toArray();
// 任务
foreach ($crontabs as $crontab) {
$can = date('Y-m-d H:i', CronExpression::factory(trim($crontab['cron']))
->getNextRunDate(date('Y-m-d H:i:s'), 0 , true)
->getTimestamp()) == date('Y-m-d H:i', time());
if ($can) {
// 如果任务只执行一次 之后禁用该任务
if ($crontab['tactics'] === Crontab::EXECUTE_ONCE) {
Crontab::where('id', $crontab['id'])->update([
'status' => Crontab::DISABLE,
]);
}
$redis = $this->getRedisHandle();
$redis->lpush($this->crontabQueueName, json_encode([
'id' => $crontab['id'],
'task' => $crontab['task'],
]));
}
}
$process->exit();
});
$process->start();
Process::alarm($this->interval);
});
}
/**
* 重启
*
* @time 2020年07月21日
* @return void
*/
protected function reload()
{
Process::signal(SIGUSR1, function ($signal) {
$this->worker_start_at = 0;
foreach ($this->workerIds as $pid => $v) {
Process::kill($pid, SIGTERM);
}
}, false);
}
/**
* 预留信号
*
* @time 2020年07月21日
* @return void
*/
protected function showStatus()
{
Process::signal(SIGUSR2, function ($signal) {
$this->setWorkerStatus($this->name . ' master');
foreach ($this->workerIds as $pid => $v) {
Process::kill($pid, SIGUSR2);
}
});
}
}