Add all the files

src/Cafe/Filesystem/fscDeviceRedirect.cpp

@@ -0,0 +1,57 @@
+#include "util/helpers/helpers.h"
+#include "Cafe/Filesystem/fscDeviceHostFS.h"
+#include "FST/fstUtil.h"
+
+struct RedirectEntry
+{
+	RedirectEntry(const fs::path& dstPath, sint32 priority) : dstPath(dstPath), priority(priority) {}
+	fs::path dstPath;
+	sint32 priority;
+};
+
+FileTree<RedirectEntry, false> redirectTree;
+
+void fscDeviceRedirect_add(std::string_view virtualSourcePath, const fs::path& targetFilePath, sint32 priority)
+{
+	std::wstring virtualSourcePathW = boost::nowide::widen(std::string(virtualSourcePath));
+	// check if source already has a redirection
+	RedirectEntry* existingEntry;
+	if (redirectTree.getFile(virtualSourcePathW, existingEntry))
+	{
+		if (existingEntry->priority >= priority)
+			return; // dont replace entries with equal or higher priority
+		// unregister existing entry
+		redirectTree.removeFile(virtualSourcePathW.c_str());
+		delete existingEntry;
+	}
+	RedirectEntry* entry = new RedirectEntry(targetFilePath, priority);
+	redirectTree.addFile(virtualSourcePathW.c_str(), entry);
+}
+
+class fscDeviceTypeRedirect : public fscDeviceC
+{
+	FSCVirtualFile* fscDeviceOpenByPath(std::wstring_view pathW, FSC_ACCESS_FLAG accessFlags, void* ctx, sint32* fscStatus) override
+	{
+		RedirectEntry* redirectionEntry;
+		if (redirectTree.getFile(pathW, redirectionEntry))
+			return FSCVirtualFile_Host::OpenFile(redirectionEntry->dstPath, accessFlags, *fscStatus);
+		return nullptr;
+	}
+
+public:
+	static fscDeviceTypeRedirect& instance()
+	{
+		static fscDeviceTypeRedirect _instance;
+		return _instance;
+	}
+};
+
+bool _redirectMapped = false;
+
+void fscDeviceRedirect_map()
+{
+	if (_redirectMapped)
+		return;
+	fsc_mount("/", L"/", &fscDeviceTypeRedirect::instance(), nullptr, FSC_PRIORITY_REDIRECT);
+	_redirectMapped = true;
+}