kern: Skeleton KSynchronizationObject

libraries/libmesosphere/include/mesosphere/kern_k_synchronization_object.hpp

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+/*
+ * 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_k_auto_object.hpp>
+#include <mesosphere/kern_slab_helpers.hpp>
+#include <mesosphere/kern_k_linked_list.hpp>
+
+namespace ams::kern {
+
+    class KThread;
+
+    class KSynchronizationObject : public KAutoObjectWithList {
+        MESOSPHERE_AUTOOBJECT_TRAITS(KSynchronizationObject, KAutoObject);
+        public:
+            using ThreadList = KLinkedList<KThread>;
+            using iterator = ThreadList::iterator;
+        private:
+            ThreadList thread_list;
+        protected:
+            constexpr ALWAYS_INLINE explicit KSynchronizationObject() : KAutoObjectWithList(), thread_list() { /* ... */ }
+            virtual ~KSynchronizationObject() { /* ... */ }
+
+            virtual void OnFinalizeSynchronizationObject() { /* ... */ }
+
+            void NotifyAvailable();
+            void NotifyAbort(Result abort_reason);
+        public:
+            virtual void Finalize() override;
+            virtual bool IsSignaled() const = 0;
+            virtual void DebugWaiters();
+
+            iterator AddWaiterThread(KThread *thread);
+            iterator RemoveWaiterThread(iterator it);
+
+            iterator begin();
+            iterator end();
+    };
+
+}