kern: implement KEvent, KWritableEvent, KServerSession::OnClientClosed

libraries/libmesosphere/include/mesosphere/kern_k_writable_event.hpp

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+#include <mesosphere/kern_common.hpp>
+#include <mesosphere/kern_k_auto_object.hpp>
+#include <mesosphere/kern_slab_helpers.hpp>
+
+namespace ams::kern {
+
+    class KEvent;
+
+    class KWritableEvent final : public KAutoObjectWithSlabHeapAndContainer<KWritableEvent, KAutoObjectWithList> {
+        MESOSPHERE_AUTOOBJECT_TRAITS(KWritableEvent, KAutoObject);
+        private:
+            KEvent *parent;
+        public:
+            constexpr explicit KWritableEvent() : parent(nullptr) { /* ... */ }
+            virtual ~KWritableEvent() { /* ... */ }
+
+            virtual void Destroy() override;
+
+            static void PostDestroy(uintptr_t arg) { /* ... */ }
+
+            void Initialize(KEvent *p);
+            Result Signal();
+            Result Clear();
+
+            constexpr KEvent *GetParent() const { return this->parent; }
+    };
+
+}