CDiscoverer::CSwiChangeNotifier Class Reference
| class CDiscoverer::CSwiChangeNotifier : public CActive |
The notification object which uses P&S to monitor SWI KSAUidSoftwareInstallKey for changes. When SWI is present in the device/ROM this attribute publishes the current state of a software install or uninstall. When its RunL method is called and depending on the install/uninstall state it notifies its owning CDiscoverer class object to re-scan removable drives.
Inherits from
- CDiscoverer::CSwiChangeNotifier
Constructor & Destructor Documentation
CSwiChangeNotifier(CDiscoverer &)
Intended Usage : Standardised default c'tor Error Condition : None
- Since
- 9.2
- Pre-condition
- None
- Post-condition
- CSwiChangeNotifier is fully constructed
Parameters
| CDiscoverer & aDiscoverer | A reference to its owning class instance. |
~CSwiChangeNotifier()
| ~CSwiChangeNotifier | ( | ) | [virtual] |
Intended Usage : Standard default d'tor Error Condition : None
- Since
- 9.2
- Pre-condition
- CSwiChangeNotifier is fully constructed.
- Post-condition
- CSwiChangeNotifier is totally destroyed
Member Functions Documentation
ConstructL()
| void | ConstructL | ( | ) | [private] |
Intended Usage : Standardised 2nd, (Initialisation) phase of two phase construction. Error Condition : Leaves with error code : usually KErrNoMemory.
- leave
- KErrNoMemory.
- Since
- 9.2
- Pre-condition
- CSwiChangeNotifier is fully constructed.
- Post-condition
- CSwiChangeNotifier is fully initialised.
DoCancel()
| void | DoCancel | ( | ) | [private, virtual] |
Intended Usage : The cancel action called by
CActive::Cancel(). Error Condition : None
- Since
- 9.2
- Pre-condition
- CSwiChangeNotifier is fully constructed.
- Post-condition
- CSwiChangeNotifier notifications are cancelled and it is no longer active on the current scheduler.
NewL(CDiscoverer &)
Intended Usage : Standardised safe construction which leaves nothing on the cleanup stack. Error Condition : Not enough memory available.
- leave
- KErrNoMemory
- Since
- 9.2
- Pre-condition
- None
- Post-condition
- CSwiChangeNotifier is fully constructed, and initialised.
Parameters
| CDiscoverer & aDiscoverer | A reference to the owning CDiscoverer |
RunError(TInt)
|
TInt
| RunError | ( | TInt | aError | ) | [private, virtual] |
Intended Usage : Called by the notifier RunL leaving.
- Since
- 9.2
- Pre-condition
- CSwiChangeNotifier is fully constructed.
- Post-condition
- CSwiChangeNotifier is returned to a sensible active state.
Parameters
| TInt aError | The error code that the RunL left with. |
RunL()
| void | RunL | ( | ) | [private, virtual] |
Intended Usage : When the object activates, this is method is called and notifies the
CDiscoverer to re-scan the removable drives.. Error Condition : Not enough memory available to complete the scan.
- leave
- KErrNoMemory
- Since
- 9.2
- Pre-condition
- CSwiChangeNotifier is fully constructed.
- Post-condition
- CSwiChangeNotifier notifications are subscribed and plugins on removable drives have been rediscovered..
Subscribe()
Intended Usage : Subscribes with P&S for change notifications for the SWI KSAUidSoftwareInstallKey property Error Condition : None
- Since
- 9.2
- Pre-condition
- CSwiChangeNotifier is fully constructed.
- Post-condition
- CSwiChangeNotifier is active on the current scheduler.
Member Data Documentation
CDiscoverer & iDiscoverer
A reference to its owning class instance
RProperty
iProperty
Handle allowing access to P&S properties
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