powctl: implement client api (needs board-specific impl)

libraries/libstratosphere/include/stratosphere/powctl/powctl_session_api.hpp

@@ -0,0 +1,46 @@
+/*
+ * 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 <vapours.hpp>
+#include <stratosphere/powctl/powctl_types.hpp>
+
+namespace ams::powctl {
+
+    namespace impl {
+
+        class SessionImpl : public ::ams::ddsf::ISession {
+            NON_COPYABLE(SessionImpl);
+            NON_MOVEABLE(SessionImpl);
+            AMS_DDSF_CASTABLE_TRAITS(ams::powctl::impl::SessionImpl, ::ams::ddsf::ISession);
+            public:
+                SessionImpl() : ISession() { /* ... */ }
+
+                ~SessionImpl() { ddsf::CloseSession(this); }
+        };
+
+    }
+
+    struct Session {
+        bool has_session;
+        TYPED_STORAGE(impl::SessionImpl) impl_storage;
+
+        Session() : has_session(false) { /* ... */ }
+    };
+
+    Result OpenSession(Session *out, DeviceCode device_code, ddsf::AccessMode access_mode);
+    void CloseSession(Session &session);
+
+}