sysupdater: implement (untested) rest of the api

libraries/libstratosphere/include/stratosphere/os/os_transfer_memory.hpp

@@ -0,0 +1,78 @@
+/*
+ * 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/os/os_transfer_memory_types.hpp>
+#include <stratosphere/os/os_transfer_memory_api.hpp>
+
+namespace ams::os {
+
+    class TransferMemory {
+        NON_COPYABLE(TransferMemory);
+        NON_MOVEABLE(TransferMemory);
+        private:
+            TransferMemoryType tmem;
+        public:
+            constexpr TransferMemory() : tmem{ .state = TransferMemoryType::State_NotInitialized } {
+                /* ... */
+            }
+
+            TransferMemory(void *address, size_t size, MemoryPermission perm) {
+                R_ABORT_UNLESS(CreateTransferMemory(std::addressof(this->tmem), address, size, perm));
+            }
+
+            TransferMemory(size_t size, Handle handle, bool managed) {
+                this->Attach(size, handle, managed);
+            }
+
+            ~TransferMemory() {
+                if (this->tmem.state == TransferMemoryType::State_NotInitialized) {
+                    return;
+                }
+                DestroyTransferMemory(std::addressof(this->tmem));
+            }
+
+            void Attach(size_t size, Handle handle, bool managed) {
+                AttachTransferMemory(std::addressof(this->tmem), size, handle, managed);
+            }
+
+            Handle Detach() {
+                return DetachTransferMemory(std::addressof(this->tmem));
+            }
+
+            Result Map(void **out, MemoryPermission owner_perm) {
+                return MapTransferMemory(out, std::addressof(this->tmem), owner_perm);
+            }
+
+            void Unmap() {
+                UnmapTransferMemory(std::addressof(this->tmem));
+            }
+
+            operator TransferMemoryType &() {
+                return this->tmem;
+            }
+
+            operator const TransferMemoryType &() const {
+                return this->tmem;
+            }
+
+            TransferMemoryType *GetBase() {
+                return std::addressof(this->tmem);
+            }
+    };
+
+}