1 files changed, 110 insertions, 0 deletions
diff --git a/src/Platform/File.h b/src/Platform/File.h
new file mode 100644
index 00000000..ef9a5c87
--- /dev/null
+++ b/src/Platform/File.h
@@ -0,0 +1,110 @@
+/*
+ Copyright (c) 2008-2009 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#ifndef TC_HEADER_Platform_File
+#define TC_HEADER_Platform_File
+
+#include "PlatformBase.h"
+#include "Buffer.h"
+#include "FilesystemPath.h"
+#include "SystemException.h"
+
+namespace TrueCrypt
+{
+	class File
+	{
+	public:
+		enum FileOpenMode
+		{
+			CreateReadWrite,
+			CreateWrite,
+			OpenRead,
+			OpenWrite,
+			OpenReadWrite
+		};
+
+		enum FileShareMode
+		{
+			ShareNone,
+			ShareRead,
+			ShareReadWrite,
+			ShareReadWriteIgnoreLock
+		};
+
+		enum FileOpenFlags
+		{
+			// Bitmap
+			FlagsNone = 0,
+			PreserveTimestamps = 1 << 0,
+			DisableWriteCaching = 1 << 1
+		};
+
+#ifdef TC_WINDOWS
+		typedef FILE* SystemFileHandleType;
+#else
+		typedef int SystemFileHandleType;
+#endif
+
+		File () : FileIsOpen (false), SharedHandle (false) { }
+		virtual ~File ();
+			
+		void AssignSystemHandle (SystemFileHandleType openFileHandle, bool sharedHandle = true)
+		{
+			if (FileIsOpen)
+				Close();
+			FileHandle = openFileHandle;
+			FileIsOpen = true;
+			SharedHandle = sharedHandle;
+		}
+
+		void Close ();
+		static void Copy (const FilePath &sourcePath, const FilePath &destinationPath, bool preserveTimestamps = true);
+		void Delete ();
+		void Flush () const;
+		uint32 GetDeviceSectorSize () const;
+		static size_t GetOptimalReadSize () { return OptimalReadSize; }
+		static size_t GetOptimalWriteSize ()  { return OptimalWriteSize; }
+		uint64 GetPartitionDeviceStartOffset () const;
+		bool IsOpen () const { return FileIsOpen; }
+		FilePath GetPath () const;
+		uint64 Length () const;
+		void Open (const FilePath &path, FileOpenMode mode = OpenRead, FileShareMode shareMode = ShareReadWrite, FileOpenFlags flags = FlagsNone);
+		uint64 Read (const BufferPtr &buffer) const;
+		void ReadCompleteBuffer (const BufferPtr &buffer) const;
+		uint64 ReadAt (const BufferPtr &buffer, uint64 position) const;
+		void SeekAt (uint64 position) const;
+		void SeekEnd (int ofset) const;
+		void Write (const ConstBufferPtr &buffer) const;
+		void Write (const ConstBufferPtr &buffer, size_t length) const { Write (buffer.GetRange (0, length)); }
+		void WriteAt (const ConstBufferPtr &buffer, uint64 position) const;
+		
+	protected:
+		void ValidateState () const;
+
+		static const size_t OptimalReadSize = 256 * 1024;
+		static const size_t OptimalWriteSize = 256 * 1024;
+
+		bool FileIsOpen;
+		FileOpenFlags mFileOpenFlags;
+		bool SharedHandle;
+		FilePath Path;
+		SystemFileHandleType FileHandle;
+
+#ifdef TC_WINDOWS
+#else
+		time_t AccTime;
+		time_t ModTime;
+#endif
+
+	private:
+		File (const File &);
+		File &operator= (const File &);
+	};
+}
+
+#endif // TC_HEADER_Platform_File