diff options
| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2013-06-22 16:16:13 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2014-11-08 23:18:07 +0100 |
| commit | c606f0866c3a2a5db3ef9bc41738ef33eb9612a9 (patch) | |
| tree | 5847c644cdfff3c1dd55b88b565448087ae89f11 /src/Platform/File.h | |
| download | VeraCrypt-c606f0866c3a2a5db3ef9bc41738ef33eb9612a9.tar.gz VeraCrypt-c606f0866c3a2a5db3ef9bc41738ef33eb9612a9.zip | |
Add original TrueCrypt 7.1a sources
Diffstat (limited to 'src/Platform/File.h')
| -rw-r--r-- | src/Platform/File.h | 110 |
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
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