ncm: update client code to better reflect latest sysupdate

libraries/libstratosphere/include/stratosphere/ncm/ncm_mapped_memory.hpp

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 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 <stratosphere.hpp>
+
+namespace ams::ncm {
+
+    struct MappedMemory {
+        u64 id;
+        size_t offset;
+        u8 *buffer;
+        size_t buffer_size;
+
+        bool IsIncluded(size_t o, size_t sz) const {
+            return this->offset <= o && sz <= this->buffer_size && (o + sz) <= (this->offset + this->buffer_size);
+        }
+
+        u8 *GetBuffer(size_t o, size_t sz) const {
+            AMS_ASSERT(this->buffer != nullptr);
+            AMS_ASSERT(this->IsIncluded(o, sz));
+
+            return this->buffer + (o - this->offset);
+        }
+    };
+    static_assert(util::is_pod<MappedMemory>::value);
+
+    class IMapper {
+        public:
+            virtual ~IMapper() { /* ... */ }
+        public:
+            virtual Result GetMappedMemory(MappedMemory *out, size_t offset, size_t size) = 0;
+            virtual Result MarkUsing(u64 id) = 0;
+            virtual Result UnmarkUsing(u64 id) = 0;
+            virtual Result MarkDirty(u64 id) = 0;
+        protected:
+            virtual Result MapImpl(MappedMemory *out, Span<u8> data, size_t offset, size_t size) = 0;
+            virtual Result UnmapImpl(MappedMemory *mem) = 0;
+            virtual bool IsAccessibleSizeUpdatable() = 0;
+    };
+
+}