feat: 完善client相关功能 重构server部分

Signed-off-by: MiaoWoo <admin@yumc.pw>

packages/websocket/src/engine.io-client/util.ts

@@ -0,0 +1,23 @@
+const pick = (obj, ...attr) => {
+    return attr.reduce((acc, k) => {
+        if (obj.hasOwnProperty(k)) {
+            acc[k] = obj[k]
+        }
+        return acc
+    }, {})
+}
+
+// Keep a reference to the real timeout functions so they can be used when overridden
+const NATIVE_SET_TIMEOUT = setTimeout
+const NATIVE_CLEAR_TIMEOUT = clearTimeout
+
+const installTimerFunctions = (obj, opts) => {
+    if (opts.useNativeTimers) {
+        obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThis)
+        obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThis)
+    } else {
+        obj.setTimeoutFn = setTimeout.bind(globalThis)
+        obj.clearTimeoutFn = clearTimeout.bind(globalThis)
+    }
+}
+export { pick, installTimerFunctions }