eee

Abstracts/ReloadWorkers.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace Kiri\Server\Abstracts;
+
+use Swoole\Process;
+
+trait ReloadWorkers
+{
+
+	/**
+	 * @return void
+	 */
+	private function reloadWorkers(): bool
+	{
+		$pid = $this->getMasterPid();
+		if ($pid === null) {
+			return false;
+		}
+
+		return Process::kill($pid, SIGUSR1);
+	}
+
+	private function getMasterPid(): ?int
+	{
+		$processes  = $this->listProcesses();
+		$candidates = [];
+
+		$pidFile = function_exists('storage') ? storage('.swoole.pid') : '';
+		if (is_file($pidFile)) {
+			$candidates[] = (int)trim((string)file_get_contents($pidFile));
+		}
+
+		foreach ($processes as $process) {
+			if ($this->isMasterProcessCommand($process['command'])) {
+				$candidates[] = (int)$process['pid'];
+			}
+		}
+
+		foreach ($candidates
+		         |> array_filter(...)
+		         |> array_unique(...)
+		         |> array_values(...) as $pid) {
+			if ($this->isProcessAlive($pid) && $this->isMasterPid($pid, $processes)) {
+				return $pid;
+			}
+		}
+
+		return null;
+	}
+
+	private function isMasterPid(int $pid, array $processes): bool
+	{
+		foreach ($processes as $process) {
+			if ((int)$process['pid'] === $pid) {
+				return $this->isMasterProcessCommand($process['command']) && $this->isSameAppProcess($pid);
+			}
+		}
+
+		return false;
+	}
+	private function listProcesses(): array
+	{
+		$lines = [];
+		exec('ps -eo pid=,ppid=,args=', $lines);
+
+		$processes = [];
+		foreach ($lines as $line) {
+			$line = trim($line);
+			if ($line === '') {
+				continue;
+			}
+
+			$parts = preg_split('/\s+/', $line, 3);
+			if (count($parts) < 3) {
+				continue;
+			}
+
+			$processes[] = [
+				'pid'     => (int)$parts[0],
+				'ppid'    => (int)$parts[1],
+				'command' => $parts[2],
+			];
+		}
+
+		return $processes;
+	}
+}