1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // e32test\cppexceptions\d_unmap.cpp

    15 // 

    16 //

    17 

    18 #include <e32std.h>

    19 #include <e32std_private.h>

    20 #include <e32base.h>

    21 #include <e32base_private.h>

    22 #include "d_unmap.h"

    23 

    24 class TAlwaysTrue

    25 	{

    26 public:

    27 	TBool val;

    28 	TAlwaysTrue() { val = ETrue; }

    29 	~TAlwaysTrue() { val = EFalse; }

    30 	};

    31 

    32 #ifndef NO_STATIC_DATA

    33 static TAlwaysTrue alwaysTrue;

    34 #endif

    35 

    36 // Test C++ stack unwinding

    37 class TNeedsCxxCleanup

    38 	{

    39 public:

    40 	TNeedsCxxCleanup() : iPtr(NULL) {}

    41 	~TNeedsCxxCleanup() { delete iPtr; }

    42 private:

    43 	TInt* iPtr;

    44 	};

    45 

    46 void AnotherStackLevelL()

    47 	{

    48 	TNeedsCxxCleanup foo;

    49 	User::Leave(KErrGeneral);

    50 	}

    51 

    52 EXPORT_C void Ordinal1L()

    53 	{

    54 	TNeedsCxxCleanup bar;

    55 	AnotherStackLevelL();

    56 	}

    57 

    58 // Test DLL unloading

    59 NONSHARABLE_CLASS( CDllUnloader ) : public CTimer

    60 	{

    61 public:

    62 	static CDllUnloader* NewL();

    63 

    64 private:

    65 	CDllUnloader();

    66 	void ConstructL();

    67 

    68 private:

    69 	void RunL();

    70 

    71 private:

    72 	RLibrary iLibrary;

    73 	};

    74 

    75 

    76 CDllUnloader::CDllUnloader()

    77 	: CTimer(EPriorityNormal)

    78 	{

    79 	CActiveScheduler::Add(this);

    80 	}

    81 

    82 void CDllUnloader::ConstructL()

    83 	{

    84 	CTimer::ConstructL();

    85 	User::LeaveIfError(iLibrary.Load(KLeavingDll));

    86 	}

    87 

    88 CDllUnloader* CDllUnloader::NewL()

    89 	{

    90 	CDllUnloader* self = new(ELeave) CDllUnloader();

    91 	CleanupStack::PushL(self);

    92 	self->ConstructL();

    93 	CleanupStack::Pop(self);

    94 	return self;

    95 	}

    96 

    97 void CDllUnloader::RunL()

    98 	{

    99 	// Temporary copy of handle

   100 	RLibrary library(iLibrary);

   101 

   102 	// Prevent the AS calling back into us later

   103 	// - everything is poison now

   104 	delete this;

   105 

   106 	// Push the library handle onto the cleanupstack for euser to clean up

   107 	CleanupClosePushL(library);

   108 

   109 	// Prevent [Run]Error() from being called...

   110 	// - effect thread diversion out of the DLL

   111 	// - and breath a sigh of relief that you've been so cunning

   112 	User::Leave(KErrNone);

   113 	}

   114 

   115 EXPORT_C TBool Ordinal2()

   116 	{

   117 	/*

   118 	CDllUnloader* unloader = CDllUnloader::NewL();

   119 	unloader->After(1000000);

   120 	*/

   121 #ifdef NO_STATIC_DATA

   122 	return EFalse;

   123 #else

   124 	return alwaysTrue.val;

   125 #endif

   126 	}

   127