libraries/iosrv/inc/memoryaccesscmd.h
author Tom Sutcliffe <thomas.sutcliffe@accenture.com>
Thu, 26 Aug 2010 00:49:35 +0100
changeset 37 534b01198c2d
parent 0 7f656887cf89
permissions -rw-r--r--
Added ENotifyKeypresses and ECaptureCtrlC flags to CCommandBase. Commands can now get keypresses and handle ctrl-C via callbacks instead of having to implement custom active objects. As part of this extended the CCommandBase extension interface to MCommandExtensionsV2 for the new virtual functions KeyPressed(TUint aKeyCode, TUint aModifiers) and CtrlCPressed(). sudo now cleans up correctly by using ECaptureCtrlC.
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// memoryaccesscmd.h
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// 
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// Copyright (c) 2010 Accenture. All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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// 
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// Initial Contributors:
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// Accenture - Initial contribution
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//
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#ifndef MEMORYACCESSCMD_H
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#define MEMORYACCESSCMD_H
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#include <fshell/ioutils.h>
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#include <fshell/common.mmh>
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#ifdef FSHELL_MEMORY_ACCESS_SUPPORT
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#include <fshell/memoryaccess.h>
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#endif
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namespace IoUtils
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	{
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/* CMemoryAccessCommandBase
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 * This class is intended to be used by commands that can make use of memory access but don't
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 * necessarily require it. By deriving from CMemoryAccessCommandBase instead of CCommandBase,
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 * you reduce the number of times "#ifdef FSHELL_MEMORY_ACCESS_SUPPORT" needs sprinkling through
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 * your code. The only bits you need to guard are the bits that use iMemAccess and that call 
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 * LoadMemoryAccessL (although you could trap that instead if you really wanted). No need to 
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 * include memoryaccess.h or close iMemAccess, and you can include this header and derive from
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 * this class unconditionally.
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 */
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class CMemoryAccessCommandBase : public CCommandBase
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	{
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public:
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	IMPORT_C CMemoryAccessCommandBase();
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	IMPORT_C CMemoryAccessCommandBase(TUint aFlags);
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	IMPORT_C void LoadMemoryAccessL();
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	IMPORT_C ~CMemoryAccessCommandBase();
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#ifdef FSHELL_MEMORY_ACCESS_SUPPORT
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protected:
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	RMemoryAccess iMemAccess;
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#else
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private:
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	// So that we're the same size regardless
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	TUint32 iPadding[3];
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#endif
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	};
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	}
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#endif // MEMORYACCESSCMD_H