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// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "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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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// Abstraction for "an environment" holding pairs of C strings (name, value)
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//
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//
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#include <e32std.h>
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#include <e32base.h>
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#include <stddef.h> //for wchar_t
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class CEnvironment;
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class TEnvVar
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/**
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@internalComponent
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*/
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{
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friend class CEnvironment; // who manages my storage
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public:
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void Release();
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void ConstructL(const TDesC16& aName, const wchar_t* aValue);
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TInt SetValue(const wchar_t* aValue);
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HBufC16* Match(const TDesC16& aName);
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TUint Length() const;
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const TInt NotEmpty() const { return (TInt)iValue; };
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static TInt Externalize(const wchar_t* aPair, TDes16& aBuffer);
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TInt Externalize(TDes16& aBuffer);
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void ConstructL(const TText16*& aPtr);
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private:
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static TPtrC16 ValuePtr(const wchar_t* aValue);
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HBufC16* iName;
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HBufC16* iValue; // data is zero terminated
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};
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NONSHARABLE_CLASS(CEnvironment) : public CBase
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/**
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@internalComponent
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*/
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{
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public:
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CEnvironment() {};
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~CEnvironment();
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wchar_t* getenv(const wchar_t* aName) const;
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int setenv(const wchar_t* aName, const wchar_t* aValue, int aReplace, int& anErrno);
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void unsetenv(const wchar_t* aName);
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void ConstructL(TUint aCount, TDes16& aBuffer);
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HBufC16* ExternalizeLC(TUint& aCount);
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HBufC16* ExternalizeLC(TUint& aCount, wchar_t** envp);
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private:
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TUint iCount;
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TEnvVar* iVars;
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};
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