libraries/memoryaccess/DynamicDfcSupport.cpp
author Tom Sutcliffe <thomas.sutcliffe@accenture.com>
Thu, 26 Aug 2010 00:49:35 +0100
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child 103 56b6ee983610
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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// DynamicDfcSupport.cpp
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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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#include "DynamicDfcSupport.h"
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#ifdef FSHELL_DYNAMICDFC_SUPPORT
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TInt TDynDfcQueWrapper::Create(TDynDfcQueWrapper*& aDfcQ, TInt aPriority, const TDesC& aBaseName)
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	{
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	TDynDfcQueWrapper* wrapper = new TDynDfcQueWrapper;
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	if (!wrapper) return KErrNoMemory;
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	TInt err = Kern::DynamicDfcQCreate(wrapper->iQueue, aPriority, aBaseName);
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	if (err)
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		{
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		delete wrapper;
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		}
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	else
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		{
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		aDfcQ = wrapper;
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		}
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	return err;
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	}
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void TDynDfcQueWrapper::Destroy()
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	{
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	delete this;
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	}
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TDynDfcQueWrapper::TDynDfcQueWrapper()
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	: iQueue(NULL)
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	{}
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TDynDfcQueWrapper::~TDynDfcQueWrapper()
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	{
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	iQueue->Destroy();
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	}
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#else
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TDynDfcQueWrapper::TDynDfcQueWrapper()
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	: iQueue(NULL), iKillDfc(ExitDfcThread, this, 7)
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	{}
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TInt TDynDfcQueWrapper::Create(TDynDfcQueWrapper*& aDfcQ, TInt aPriority, const TDesC& aBaseName)
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	{
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	TDynDfcQueWrapper* wrapper = new TDynDfcQueWrapper;
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	TInt nonce = 0;
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	TInt ret;
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	do
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		{
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		TBuf<64> buf;
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		buf.Copy(aBaseName);
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		buf.Append('-');
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		buf.AppendNum(nonce);
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		nonce++;
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		ret = Kern::DfcQCreate(wrapper->iQueue, aPriority, &buf);
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		} while (ret == KErrAlreadyExists);
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	if (ret == KErrNone)
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		{
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		wrapper->iKillDfc.SetDfcQ(wrapper->iQueue);
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		aDfcQ = wrapper;
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		}
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	return ret;
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	}
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void TDynDfcQueWrapper::Destroy()
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	{
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	iKillDfc.Enque(); 
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	}
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TDynDfcQueWrapper::~TDynDfcQueWrapper()
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	{
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	delete iQueue;
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	}
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void TDynDfcQueWrapper::ExitDfcThread(TAny* aSelf)
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	{
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	delete (TDynDfcQueWrapper*)aSelf;
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	Kern::Exit(KErrNone);
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	}
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#endif