First

2024-07-02 18:12:23 +02:00
commit b344afa9fe
89 changed files with 10568 additions and 0 deletions
@@ -0,0 +1,49 @@
+#pragma once
+
+#include "tl/ptr.h"
+
+#include "fs/IMapSource.h"
+#include "fs/AbsPath.h"
+#include "fs/Api.h"
+
+namespace fs
+{
+
+class NativeFilesystem;
+
+class FS_API FileMapSource final : public IMapSource
+{
+	friend class NativeFilesystem;
+public:
+	explicit FileMapSource(const AbsPath& filepath);
+	FileMapSource(const AbsPath& filepath, uint64_t start, size_t size);
+
+	~FileMapSource() override;
+
+	bool isValid() const;
+	tl::optional<Error> getLastError() const override;
+
+	size_t read(tl::span<uint8_t> data) override;
+
+	void seekBeg(uint64_t offset) override;
+	void seekRel(int64_t offset) override;
+
+	uint64_t tell() const override;
+	uint64_t getSize() const override;
+
+	tl::span<const uint8_t> map(size_t size) override;
+
+	bool isEOS() const override;
+
+	size_t getPreferredBufferSize() const override;
+
+private:
+	uint64_t m_offset = 0;
+	mutable tl::optional<Error> m_optLastError;
+
+	struct Impl;
+	tl::unique_ptr<Impl> m_impl;
+};
+
+}
+