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Abstracts/FileWatcher.php

@@ -307,7 +307,7 @@ class FileWatcher extends AbstractProcess implements OnProcessInterface
 			}
 
 			if (!$this->reloadWorkers()) {
-				di(StdoutLogger::class)->println('reload server failed: master pid not found or signal failed');
+				di(StdoutLogger::class)->println('reload server failed: Server->reload() failed, and master pid fallback not found or signal failed');
 			}
 		} finally {
 			$this->reloading = false;

Abstracts/HotReload.php

@@ -128,7 +128,7 @@ class HotReload extends AbstractProcess
 
 		$this->clear();
 		if (!$this->reloadWorkers()) {
-			di(StdoutLogger::class)->println('reload server failed: master pid not found or signal failed');
+			di(StdoutLogger::class)->println('reload server failed: Server->reload() failed, and master pid fallback not found or signal failed');
 		}
 		$this->addListen();
 

Abstracts/ReloadWorkers.php

@@ -14,6 +14,10 @@ trait ReloadWorkers
 	 */
 	private function reloadWorkers(): bool
 	{
+		if ($this->reloadByServerInstance()) {
+			return true;
+		}
+
 		$pid = $this->getMasterPid();
 		if ($pid === null) {
 			return false;
@@ -22,6 +26,25 @@ trait ReloadWorkers
 		return Process::kill($pid, SIGUSR1);
 	}
 
+	private function reloadByServerInstance(): bool
+	{
+		try {
+			$server = function_exists('di') ? di(\Kiri\Server\ServerInterface::class) : null;
+		} catch (\Throwable) {
+			return false;
+		}
+
+		if (!is_object($server) || !method_exists($server, 'reload')) {
+			return false;
+		}
+
+		try {
+			return $server->reload() !== false;
+		} catch (\Throwable) {
+			return false;
+		}
+	}
+
 	private function getMasterPid(): ?int
 	{
 		if (self::$cachedMasterPid !== null && $this->isCachedMasterPid(self::$cachedMasterPid)) {