CMsmmPolicyPluginBase Class Reference

class CMsmmPolicyPluginBase : public CActive

Inherits from

Constructor & Destructor Documentation

CMsmmPolicyPluginBase()

CMsmmPolicyPluginBase ( ) [protected, inline]

~CMsmmPolicyPluginBase()

~CMsmmPolicyPluginBase ( ) [inline, virtual]

Member Functions Documentation

CancelRetrieveDriveLetter()

void CancelRetrieveDriveLetter ( ) [pure virtual]

Called to cancel a outstanding drive letter retrieving request.

CancelSaveLatestMountInfo()

void CancelSaveLatestMountInfo ( ) [pure virtual]

Called to cancel a outstanding saving mount information request.

DoCancel()

void DoCancel ( ) [protected, pure 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() .

CActive::Cancel

GetSuspensionPolicy(TSuspensionPolicy &)

void GetSuspensionPolicy ( TSuspensionPolicy & aPolicy ) [pure virtual]

Called when the MSMM need suspension policy passing to MSC interface.

Parameters

TSuspensionPolicy & aPolicy This is the buffer for suspension policy data.

NewL()

CMsmmPolicyPluginBase * NewL ( ) [static, inline]

RetrieveDriveLetterL(TText &, const TPolicyRequestData &, TRequestStatus &)

void RetrieveDriveLetterL ( TText & aDriveName,
const TPolicyRequestData & aData,
TRequestStatus & aStatus
) [pure virtual]

Called when the MSMM retrieves a drive letter to mount a logical unit on it.

Parameters

TText & aDriveName This is the drive name buffer for the new logical unit. The policy plugin uses it bring the drive name back.
const TPolicyRequestData & aData The data used for retrieve a drive name. It includes number of the new logical unit and the information of the USB mass storage function and the device that current logical unit belongs to.
TRequestStatus & aStatus The reference of client request status object.

RunL()

void RunL ( ) [protected, pure 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::Start CActiveScheduler::Error CActiveScheduler::WaitForAnyRequest TRAPD

SaveLatestMountInfoL(const TPolicyMountRecord &, TRequestStatus &)

void SaveLatestMountInfoL ( const TPolicyMountRecord & aData,
TRequestStatus & aStatus
) [pure virtual]

Called when the MSMM saves mount operation informaion to policy plugin.

Parameters

const TPolicyMountRecord & aData This is the data that will be used to retrieve a drive letter and perform a mounting operation before. It will be saved
TRequestStatus & aStatus The reference of client request status object.

SendErrorNotificationL(const THostMsErrData &)

void SendErrorNotificationL ( const THostMsErrData & aErrData ) [pure virtual]

Called when the MSMM send a error notification to policy plugin.

Parameters

const THostMsErrData & aErrData

Member Data Documentation

TUid iDtor_ID_Key

TUid iDtor_ID_Key [private]