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libraries/iosrv/server/readwrite.h
changeset 0 7f656887cf89
child 100 706c7a69e448 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libraries/iosrv/server/readwrite.h	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,287 @@
+// readwrite.h
+// 
+// Copyright (c) 2006 - 2010 Accenture. All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the "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:
+// Accenture - Initial contribution
+//
+
+#ifndef __READWRITE_H__
+#define __READWRITE_H__
+
+#include <e32base.h>
+#include "server.h"
+#include "iocli.h"
+#include "object.h"
+
+
+class CIoConsole;
+class CThreadOwner;
+
+class MIoReadWriter
+	{
+public:
+	virtual RIoReadWriteHandle::TMode IorwMode() const = 0;
+	};
+
+
+class MIoReader : public MIoReadWriter
+	{
+public:
+	virtual TBool IorReadPending() const = 0;
+	virtual TBool IorReadKeyPending() const = 0;
+	virtual TDes& IorReadBuf() = 0;
+	virtual void IorDataBuffered(TInt aLength) = 0;
+	virtual TBool IorDataIsBuffered() const = 0;
+	virtual TBool IorIsKeyCaptured(TUint aKeyCode, TUint aModifiers) = 0;
+	virtual void IorReadComplete(TInt aError) = 0;
+	virtual void IorReadKeyComplete(TInt aError, TUint aKeyCode, TUint aModifiers) = 0;
+	virtual TName IorName() = 0;
+	virtual void IorReaderChange(TUint aChange) = 0;
+	virtual void IorSetConsoleModeComplete(TInt aError) = 0;
+	};
+
+
+class MIoWriter : public MIoReadWriter
+	{
+public:
+	virtual TInt IowWriteLength() const = 0;
+	virtual TInt IowWrite(TDes& aBuf) = 0;
+	virtual void IowComplete(TInt aError) = 0;
+	virtual TName IowName() = 0;
+	virtual void IowCursorPos(TInt aError, TPoint aPos) = 0;
+	virtual void IowSetCursorPosAbsComplete(TInt aError) = 0;
+	virtual void IowSetCursorPosRelComplete(TInt aError) = 0;
+	virtual void IowSetCursorHeightComplete(TInt aError) = 0;
+	virtual void IowSetTitleComplete(TInt aError) = 0;
+	virtual void IowClearScreenComplete(TInt aError) = 0;
+	virtual void IowClearToEndOfLineComplete(TInt aError) = 0;
+	virtual void IowScreenSize(TInt aError, TSize aSize) = 0;
+	virtual void IowSetAttributesComplete(TInt aError) = 0;
+	virtual HBufC* IowTitleLC() = 0;
+	virtual TBool IowIsStdErr() const { return EFalse; }
+	};
+
+
+class MIoEndPoint
+	{
+public:
+	TBool IoepIsConsole() const;
+	virtual TName IoepName() const = 0;
+	virtual TBool IoepIsType(RIoHandle::TType aType) const = 0;
+	};
+
+class MIoReadEndPoint : public MIoEndPoint
+	{
+public:
+	virtual void IorepAttachL(MIoReader& aReader, RIoEndPoint::TReadMode aMode) = 0;
+	virtual void IorepDetach(MIoReader& aReader) = 0;
+	virtual void IorepReadL(MIoReader& aReader) = 0;
+	virtual void IorepSetForegroundReaderL(MIoReader& aReader) = 0;
+	virtual TBool IorepIsForegroundL(const MIoReader& aReader) const = 0;
+	virtual void IorepReadKeyL(MIoReader& aReader);
+	virtual void IorepSetConsoleModeL(RIoReadWriteHandle::TMode aMode, MIoReader& aReader);
+	static TBool AttachedToConsole(const MIoReadEndPoint* aEndPoint);
+	};
+
+
+class MIoWriteEndPoint : public MIoEndPoint
+	{
+public:
+	virtual void IowepAttachL(MIoWriter& aReader) = 0;
+	virtual void IowepDetach(MIoWriter& aReader) = 0;
+	virtual void IowepWriteL(MIoWriter& aWriter) = 0;
+	virtual void IowepWriteCancel(MIoWriter& aWriter) = 0;
+	virtual void IowepCursorPosL(MIoWriter& aWriter) const;
+	virtual void IowepSetCursorPosAbsL(const TPoint& aPoint, MIoWriter& aWriter);
+	virtual void IowepSetCursorPosRelL(const TPoint& aPoint, MIoWriter& aWriter);
+	virtual void IowepSetCursorHeightL(TInt aPercentage, MIoWriter& aWriter);
+	virtual void IowepSetTitleL(MIoWriter& aWriter);
+	virtual void IowepClearScreenL(MIoWriter& aWriter);
+	virtual void IowepClearToEndOfLineL(MIoWriter& aWriter);
+	virtual void IowepScreenSizeL(MIoWriter& aWriter) const;
+	virtual void IowepSetAttributesL(TUint aAttributes, ConsoleAttributes::TColor aForegroundColor, ConsoleAttributes::TColor aBackgroundColor, MIoWriter& aWriter);
+	static TBool AttachedToConsole(const MIoWriteEndPoint* aEndPoint);
+protected:
+	virtual TPoint IowepCursorPos() const;
+	virtual void IowepSetCursorPosAbs(const TPoint& aPoint);
+	virtual void IowepSetCursorPosRel(const TPoint& aPoint);
+	virtual void IowepSetCursorHeight(TInt aHeight);
+	virtual void IowepSetTitle(const TDesC& aTitle);
+	virtual void IowepClearScreen();
+	virtual void IowepClearToEndOfLine();
+	virtual TSize IowepScreenSize() const;
+	virtual void IowepSetAttributes(TUint aAttributes, ConsoleAttributes::TColor aForegroundColor, ConsoleAttributes::TColor aBackgroundColor);
+	};
+
+
+class CIoReadWriteObject : public CIoObject
+	{
+public:
+	TUint Id() const;
+	void SetOwnerL(TThreadId aOwningThread);
+	TInt Open(TThreadId aOwningThread);
+	void DoDuplicateL(const CIoReadWriteObject& aDuplicate);
+	TBool IsOwner(TThreadId aOwningThread) const;
+	TBool OpenedByOwner() const;
+	void SetConsole(CIoConsole& aConsole);
+	CIoConsole* Console();
+	const CIoConsole* Console() const;
+	MIoEndPoint* EndPoint();
+	virtual void SetModeL(const RMsg& aMessage);
+protected:
+	CIoReadWriteObject(TUint aId);
+	void Dump(const TDesC& aData) const;
+protected:
+	MIoEndPoint* iEndPoint;
+	RIoReadWriteHandle::TMode iMode;
+private:
+	const TUint iId;
+	TThreadId iOwningThreadId;
+	TBool iOpenedByOwner;
+	CIoConsole* iConsole;
+	};
+
+
+class CIoReadObject : public CIoReadWriteObject, public MIoReader
+	{
+public:
+	static CIoReadObject* NewLC(TInt aId);
+	virtual ~CIoReadObject();
+	void DuplicateL(const CIoReadObject& aDuplicate);
+	void AttachL(MIoReadEndPoint& aEndPoint, RIoEndPoint::TReadMode aMode);
+	void SetReadMode(RIoReadHandle::TReadMode aMode);
+	void SetToForegroundL();
+	TBool IsForegroundL() const;
+	void ReadL(const RMsg& aMessage);
+	void ReadCancel(const CIoSession& aSession);
+	void SetLineSeparatorL(const RMsg& aMessage);
+	void ReadKeyL(const RMsg& aMessage);
+	void ReadKeyCancel(const CIoSession& aSession);
+	void CaptureKeyL(const RMsg& aMessage);
+	void CancelCaptureKey(const RMsg& aMessage);
+	void CaptureAllKeys(const RMsg& aMessage);
+	void CancelCaptureAllKeys(const RMsg& aMessage);
+	void NotifyChange(const RMsg& aMessage);
+	void CancelNotifyChange(const CIoSession& aSession);
+public: // From CIoObject.
+	virtual TBool IsType(RIoHandle::TType aType) const;
+	virtual void SessionClosed(const CIoSession& aSession);
+public: // From CIoReadWriteObject.
+	virtual void SetModeL(const RMsg& aMessage);
+public: // From MIoReadWriter.
+	virtual RIoReadWriteHandle::TMode IorwMode() const;
+private: // From MIoReader.
+	virtual TBool IorReadPending() const;
+	virtual TBool IorReadKeyPending() const;
+	virtual TDes& IorReadBuf();
+	virtual void IorDataBuffered(TInt aLength);
+	virtual TBool IorDataIsBuffered() const;
+	virtual TBool IorIsKeyCaptured(TUint aKeyCode, TUint aModifier);
+	virtual void IorReadComplete(TInt aError);
+	virtual void IorReadKeyComplete(TInt aError, TUint aKeyCode, TUint aModifiers);
+	virtual TName IorName();
+	virtual void IorReaderChange(TUint aChange);
+	virtual void IorSetConsoleModeComplete(TInt aError);
+private:
+	CIoReadObject(TInt aId);
+	void ProcessRead();
+	void AllocateBufferL(TInt aLength);
+	void TryToCompleteRead();
+	void CompleteRead(TInt aError, TInt aLength);
+	void CompleteReadKey(TInt aError, RIoConsoleReadHandle::TConsoleKey& aConsoleKey);
+	MIoReadEndPoint* ReadEndPoint() const;
+	void CancelSetMode(const CIoSession& aSession);
+private:
+	class TCapturedKey
+		{
+	public:
+		TCapturedKey(TUint aKeyCode, TUint aModifierMask, TUint aModifiers);
+	public:
+		TUint iKeyCode;
+		TUint iModifierMask;
+		TUint iModifiers;
+		};
+private:
+	RIoReadHandle::TReadMode iReadMode;
+	TInt iMaxReadLength;
+	RMsg iReadMessage;
+	RMsg iReadKeyMessage;
+	HBufC* iBuf;
+	TPtr iPtr;
+	HBufC* iLineSeparator; // NULL means use default "\n"
+	RArray<TCapturedKey> iCapturedKeys;
+	RArray<RIoConsoleReadHandle::TConsoleKey> iKeyBuffer;
+	TBool iCaptureAllKeys;
+	TInt iCompleteErr; // non-zero if we have completed reading
+	RMsg iChangeNotifyMessage;
+	RMsg iSetModeMessage;
+	};
+
+
+class CIoWriteObject : public CIoReadWriteObject, public MIoWriter
+	{
+public:
+	static CIoWriteObject* NewLC(TInt aId);
+	~CIoWriteObject();
+	void DuplicateL(const CIoWriteObject& aDuplicate);
+	void AttachL(MIoWriteEndPoint& aEndPoint);
+	void WriteL(const RMsg& aMessage);
+	void WriteCancel(const CIoSession& aSession);
+	void CursorPosL(const RMsg& aMessage);
+	void SetCursorPosAbsL(const RMsg& aMessage);
+	void SetCursorPosRelL(const RMsg& aMessage);
+	void SetCursorHeightL(const RMsg& aMessage);
+	void SetTitleL(const RMsg& aMessage);
+	void ClearScreen(const RMsg& aMessage);
+	void ClearToEndOfLine(const RMsg& aMessage);
+	void ScreenSizeL(const RMsg& aMessage);
+	void SetAttributesL(const RMsg& aMessage);
+	void SetIsStdErr(TBool aFlag);
+public: // From CIoObject.
+	virtual TBool IsType(RIoHandle::TType aType) const;
+	virtual void SessionClosed(const CIoSession& aSession);
+public: // From MIoReadWriter.
+	virtual RIoReadWriteHandle::TMode IorwMode() const;
+private: // From MIoWriter.
+	virtual TInt IowWriteLength() const;
+	virtual TInt IowWrite(TDes& aBuf);
+	virtual void IowComplete(TInt aError);
+	virtual TName IowName();
+	virtual RIoWriteHandle::TMode IowWriteMode() const;
+	virtual void IowCursorPos(TInt aError, TPoint aPos);
+	virtual void IowSetCursorPosAbsComplete(TInt aError);
+	virtual void IowSetCursorPosRelComplete(TInt aError);
+	virtual void IowSetCursorHeightComplete(TInt aError);
+	virtual void IowSetTitleComplete(TInt aError);
+	virtual void IowClearScreenComplete(TInt aError);
+	virtual void IowClearToEndOfLineComplete(TInt aError);
+	virtual void IowScreenSize(TInt aError, TSize aSize);
+	virtual void IowSetAttributesComplete(TInt aError);
+	virtual HBufC* IowTitleLC();
+	virtual TBool IowIsStdErr() const;
+private:
+	CIoWriteObject(TInt aId);
+	MIoWriteEndPoint* WriteEndPoint() const;
+protected:
+	TInt iOffset;
+	TInt iWriteLength;
+	RMsg iWriteMessage;
+	RMsg iGetCursorPosMsg;
+	RMsg iSetCursorPosAbsMsg;
+	RMsg iSetCursorPosRelMsg;
+	RMsg iSetCursorHeightMsg;
+	RMsg iSetTitleMsg;
+	RMsg iClearScreenMsg;
+	RMsg iClearToEndOfLineMsg;
+	RMsg iGetScreenSizeMsg;
+	RMsg iSetAttributesMsg;
+	TBool iTriedConsoleScreenSize;
+	TBool iIsStdErr;
+	};
+
+#endif // __READWRITE_H__
FCL/sf/os/fshell