Cleanup support example code

Found in: epoc32ex\Base\MemMan\Cleanup\ErrorOnFail

The example attempts to construct an object, and on failure it returns an appropriate error code.

This example shows use of the TRAPD macro, the cleanup stack and its functions PushL(), PopAndDestroy() and the process of leaving. It also uses the heap debugging macro __UHEAP_SETFAIL.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\LeaveOnFail

As with the ErrorOnFail example, this example also attempts to construct an object, however on failure it simply leaves.

This example shows use of the TRAPD macro, the cleanup stack and its functions PushL(), PopAndDestroy() and the process of leaving. It also uses the heap debugging macro __UHEAP_SETFAIL.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\ELeaveOnFail

This example attempts to construct an object using the overloaded new operator new (ELeave). Specifying (ELeave) will cause a leave to occur if it was unable to allocate memory for the new object.

This example shows use of the TRAPD macro, the cleanup stack and its functions PushL(), PopAndDestroy() and the process of leaving. It also uses the heap debugging macro __UHEAP_SETFAIL.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\TrapD

The example shows the use of the TRAPD macro. It shows how a newly created object can be protected by the TRAPD macro.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\PushLAndPop

The example shows the use of the cleanup stack and its functions PushL() and Pop().

The example also uses the heap debugging macro __UHEAP_SETFAIL.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\PushLPopDest

The example shows the use of the cleanup stack and its functions PushL() and PopAndDestroy().

The example also uses the heap debugging macro __UHEAP_SETFAIL.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\NewL

The example shows use of the NewL() static function.

The example also uses the heap debugging macro __UHEAP_SETFAIL.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\NewLC

The example shows use of the NewLC() static function.

The example also uses the heap debugging macro __UHEAP_SETFAIL.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\SimpleOOM

This example shows cleanup handling for compound classes. The robustness of a simple class on Out Of Memory (OOM) is tested.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\MemLeakOOM

This example shows cleanup handling for compound classes. The robustness of a compound class on Out Of Memory (OOM) is tested. It also shows how memory leaks can occur.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\TwoPhaseOOM

These examples show cleanup handling for compound classes. The robustness of a compound class on Out Of Memory (OOM) is tested. It also shows the use of the two phase construction technique.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

Found in: epoc32ex\Base\MemMan\Cleanup\TAnyRObjects1

The example shows how cleanup can be implemented for TAny* type objects and 'R' type (resource type) objects.

This example shows the use of TAny* cleanup type, for pushing a buffer to the cleanup stack. The buffer data is read from a file.

Class RFileWithCleanup is derived from class RFile, to show how to add cleanup support to a general R class.

This example adds cleanup support to the RFile.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

• RFile: a file

Found in: epoc32ex\Base\MemMan\Cleanup\TAnyRObjects2

The example shows how cleanup can be implemented for TAny* type objects and 'R' type (resource type) objects.

This example is similar to the TAnyRObjects1 example. However, it enhances the interface to include an OpenLC() which opens the file, and pushes it on to the cleanup stack in one function call.

Run the example either under WINS or on the ARMI platform.

• CleanupStack: a cleanup stack

• RFile: a file

Found in: epoc32ex\Base\MemMan\Cleanup\Utilities

This example shows how the cleanup utilities (the templated functions CleanupDeletePushL(), CleanupClosePushL() and CleanupReleasePushL()) can be used.

Run the example either under WINS or on the ARMI platform.

In addition to the templated functions:

• CleanupDeletePushL()

• CleanupClosePushL()

• CleanupReleasePushL()

the examples implicitly use the templated classes:

• CleanupDelete<class T>

• CleanupClose<class T>

• CleanupRelease<class T>