luci-app-nes-emulator: add NES emulator interface

applications/luci-app-nes-emulator/Makefile

@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: MIT
+
+include $(TOPDIR)/rules.mk
+
+PKG_LICENSE:=MIT
+PKG_MAINTAINER:=Yaroslav Vereshchagin <yarik.vereshchagin1996@gmail.com>
+
+LUCI_TITLE:=LuCI support for NES Emulator
+LUCI_DESCRIPTION:=Web interface for the NES emulator service
+LUCI_DEPENDS:=+luci-base +rpcd +jshn +jsonfilter +cgi-io +nes-emulator
+LUCI_PKGARCH:=all
+LUCI_MAINTAINER:=$(PKG_MAINTAINER)
+
+include ../../luci.mk
+
+# call BuildPackage - OpenWrt buildroot signature

applications/luci-app-nes-emulator/htdocs/luci-static/resources/nes-emulator.js

@@ -0,0 +1,39 @@
+'use strict';
+'require baseclass';
+'require rpc';
+
+const LONG_RUNNING_RPC_TIMEOUT = 120;
+const LONG_RUNNING_ACTION_GRACE = 5;
+
+function getRpcTimeout() {
+	return Math.max(
+		Number(L.env.rpctimeout) || 20,
+		LONG_RUNNING_RPC_TIMEOUT
+	);
+}
+
+function getActionTimeout() {
+	return (getRpcTimeout() + LONG_RUNNING_ACTION_GRACE) * 1000;
+}
+
+function declareLongRunningRpc(specification) {
+	const call = rpc.declare(Object.assign({}, specification, {
+		nobatch: true
+	}));
+
+	return (...args) => {
+		const savedTimeout = L.env.rpctimeout;
+		L.env.rpctimeout = getRpcTimeout();
+		try {
+			return call(...args);
+		}
+		finally {
+			L.env.rpctimeout = savedTimeout;
+		}
+	};
+}
+
+return baseclass.extend({
+	getActionTimeout,
+	declareLongRunningRpc
+});