service: add os types and multi wait API

src/core/hle/service/os/event.cpp

@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/os/event.h"
+
+namespace Service {
+
+Event::Event(KernelHelpers::ServiceContext& ctx) {
+    m_event = ctx.CreateEvent("Event");
+}
+
+Event::~Event() {
+    m_event->GetReadableEvent().Close();
+    m_event->Close();
+}
+
+void Event::Signal() {
+    m_event->Signal();
+}
+
+void Event::Clear() {
+    m_event->Clear();
+}
+
+Kernel::KReadableEvent* Event::GetHandle() {
+    return &m_event->GetReadableEvent();
+}
+
+} // namespace Service