--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpfws/mtpfw/datatypes/interface/cmtptypestring.h	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,119 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+/**
+ @file
+ @publishedPartner
+ @released
+*/
+
+#ifndef CMTPTYPESTRING_H
+#define CMTPTYPESTRING_H
+
+#include <e32base.h>
+#include <mtp/mmtptype.h>
+
+/**
+Defines the MTP string data type. MTP strings consist of standard 2-byte 
+Unicode characters and are null-terminated. Strings are prepended with a 
+single 8-bit unsigned integer that identifies the number of characters (NOT 
+bytes) to follow and includes the terminating null value. Strings are limited
+to 255 characters (including the null value). An empty string would consist
+of a single 8-bit integer containing the value 0x00. 
+
+MTP strings are stored in a flat buffer to optimise streaming performance 
+to/from the MTP transport connection.
+@publishedPartner
+@released 
+*/
+class CMTPTypeString : public CBase, public MMTPType
+    {
+public:
+    
+    IMPORT_C static CMTPTypeString* NewL();
+    IMPORT_C static CMTPTypeString* NewL(const TDesC& aString);
+    IMPORT_C static CMTPTypeString* NewLC();
+    IMPORT_C static CMTPTypeString* NewLC(const TDesC& aString);
+    IMPORT_C ~CMTPTypeString();
+    
+    IMPORT_C TUint8 NumChars() const;
+    IMPORT_C const TDesC& StringChars() const;  
+
+    IMPORT_C void SetL(const TDesC& aString);
+
+public: // From MMTPType
+
+    IMPORT_C TInt FirstReadChunk(TPtrC8& aChunk) const;
+    IMPORT_C TInt NextReadChunk(TPtrC8& aChunk) const;
+    IMPORT_C TInt FirstWriteChunk(TPtr8& aChunk);
+    IMPORT_C TInt NextWriteChunk(TPtr8& aChunk);
+    IMPORT_C TUint64 Size() const;
+    IMPORT_C TUint Type() const;
+    IMPORT_C TBool CommitRequired() const;
+    IMPORT_C MMTPType* CommitChunkL(TPtr8& aChunk);
+    IMPORT_C TInt Validate() const;
+    
+private:
+
+    CMTPTypeString();
+    void ConstructL(const TDesC& aString);
+    
+    void ReAllocBufferL(TUint aNumNullTerminatedChars);
+    
+private: // Owned
+
+    /**
+    The write data stream states.
+    */
+    enum TWriteSequenceState
+        {
+        /**
+        Write data stream inactive.
+        */
+        EIdle,
+        
+        /**
+        Streaming the NumChars data chunk.
+        */
+        ENumChars,
+        
+        /**
+        Streaming the String Characters data chunk.
+        */
+        EStringChars            
+        };
+
+    /**
+    The data buffer.
+    */
+    RBuf8   iBuffer;
+    
+    /**
+    The String Characters data pointer.
+    */
+    TPtr    iStringChars;
+    
+    /**
+    The write data stream state variable.
+    */
+    TUint   iWriteSequenceState;
+    
+    /**
+    The String type's validation state.
+    */
+    TInt    iValidationState;
+    };
+
+#endif // CMTPTYPESTRING_H