[FS] Cleanup, stub SDMC, start implementing SaveData

include/fs/archive_base.hpp

@@ -56,6 +56,16 @@ struct FileSession {
     }
 };
 
+struct ArchiveSession {
+    ArchiveBase* archive = nullptr;
+    FSPath path;
+    bool isOpen;
+
+    ArchiveSession(ArchiveBase* archive, const FSPath& filePath, bool isOpen = true) : archive(archive), isOpen(isOpen) {
+        path = filePath;
+    }
+};
+
 class ArchiveBase {
 protected:
     using Result = u32;
@@ -67,7 +77,7 @@ public:
     virtual u64 getFreeBytes() = 0;
     virtual bool openFile(const FSPath& path) = 0;
 
-    virtual ArchiveBase* openArchive(FSPath& path) = 0;
+    virtual ArchiveBase* openArchive(const FSPath& path) = 0;
 
     // Read size bytes from a file starting at offset "offset" into a certain buffer in memory
     // Returns the number of bytes read, or nullopt if the read failed

include/fs/archive_ncch.hpp

@@ -1,3 +1,4 @@
+#pragma once
 #include "archive_base.hpp"
 
 class SelfNCCHArchive : public ArchiveBase {
@@ -9,6 +10,6 @@ public:
 	const char* name() override { return "SelfNCCH"; }
 
 	bool openFile(const FSPath& path) override;
-	ArchiveBase* openArchive(FSPath& path) override;
+	ArchiveBase* openArchive(const FSPath& path) override;
 	std::optional<u32> readFile(FileSession* file, u64 offset, u32 size, u32 dataPointer) override;
 };

include/fs/archive_save_data.hpp

@@ -0,0 +1,15 @@
+#pragma once
+#include "archive_base.hpp"
+
+class SaveDataArchive : public ArchiveBase {
+
+public:
+	SaveDataArchive(Memory& mem) : ArchiveBase(mem) {}
+
+	u64 getFreeBytes() override { return 0; }
+	const char* name() override { return "SaveData"; }
+
+	bool openFile(const FSPath& path) override;
+	ArchiveBase* openArchive(const FSPath& path) override;
+	std::optional<u32> readFile(FileSession* file, u64 offset, u32 size, u32 dataPointer) override;
+};

include/fs/archive_sdmc.hpp

@@ -0,0 +1,15 @@
+#pragma once
+#include "archive_base.hpp"
+
+class SDMCArchive : public ArchiveBase {
+
+public:
+	SDMCArchive(Memory& mem) : ArchiveBase(mem) {}
+
+	u64 getFreeBytes() override { return 0; }
+	const char* name() override { return "SDMC"; }
+
+	bool openFile(const FSPath& path) override;
+	ArchiveBase* openArchive(const FSPath& path) override;
+	std::optional<u32> readFile(FileSession* file, u64 offset, u32 size, u32 dataPointer) override;
+};