| class CSaveNotifier : public CActive |
This class describes an object, which can be used by the clients, which want to be notified about events like powerdown/low memory. The clients have to implement MSaveObserver interface. When a particular event happens, the client's implementation of MSaveObserver::SaveL() will be called. MSaveObserver
| Public Member Functions | |
|---|---|
| ~CSaveNotifier() | |
| IMPORT_C void | DelayRequeue() |
| IMPORT_C void | HandleError(TInt) |
| IMPORT_C CSaveNotifier * | NewL(MSaveObserver &) |
| IMPORT_C void | Queue() |
| Private Member Functions | |
|---|---|
| CSaveNotifier(MSaveObserver &) | |
| void | ConstructL() |
| void | DoCancel() |
| void | RunL() |
| IMPORT_C TInt | ServerPowerState(TBool &) |
| void | Start() |
| IMPORT_C TInt | SwitchOff(MSaveObserver::TSaveType, TBool) |
| Inherited Enumerations | |
|---|---|
| CActive:TPriority | |
| Private Attributes | |
|---|---|
| TUint | iFlags |
| MSaveObserver & | iSaveObserver |
| RSaveSession | iSaveSession |
| Inherited Attributes | |
|---|---|
| CActive::iStatus | |
| CSaveNotifier | ( | MSaveObserver & | aObserver | ) | [private, inline] |
| MSaveObserver & aObserver |
| void | DoCancel | ( | ) | [private, virtual] |
Implements cancellation of an outstanding request.
This function is called as part of the active object's Cancel().
It must call the appropriate cancel function offered by the active object's asynchronous service provider. The asynchronous service provider's cancel is expected to act immediately.
DoCancel() must not wait for event completion; this is handled by Cancel().
| IMPORT_C CSaveNotifier * | NewL | ( | MSaveObserver & | aObserver | ) | [static] |
| MSaveObserver & aObserver |
| void | RunL | ( | ) | [private, virtual] |
Handles an active object's request completion event.
A derived class must provide an implementation to handle the completed request. If appropriate, it may issue another request.
The function is called by the active scheduler when a request completion event occurs, i.e. after the active scheduler's WaitForAnyRequest() function completes.
Before calling this active object's RunL() function, the active scheduler has:
1. decided that this is the highest priority active object with a completed request
2. marked this active object's request as complete (i.e. the request is no longer outstanding)
RunL() runs under a trap harness in the active scheduler. If it leaves, then the active scheduler calls RunError() to handle the leave.
Note that once the active scheduler's Start() function has been called, all user code is run under one of the program's active object's RunL() or RunError() functions.
CActiveScheduler::WaitForAnyRequest
TRAPD
| IMPORT_C TInt | ServerPowerState | ( | TBool & | aPowerOff | ) | [private] |
| TBool & aPowerOff |
| IMPORT_C TInt | SwitchOff | ( | MSaveObserver::TSaveType | aAction, |
| TBool | aPowerOff | |||
| ) | [private] | |||
| MSaveObserver::TSaveType aAction | |
| TBool aPowerOff |