CBTRegistryResponse Class Reference

class CBTRegistryResponse : public CActive

Retrieves a set of results from the Registry.

This is a helper class that retrieves the set of results from a view set-up in the registry. A view is set-up in the registry using RBTRegistry::CreateView .

RBTRegistry

Inherits from

Constructor & Destructor Documentation

CBTRegistryResponse(RBTRegistry &)

CBTRegistryResponse ( RBTRegistry & aView ) [private]

Parameters

RBTRegistry & aView

~CBTRegistryResponse()

IMPORT_C ~CBTRegistryResponse ( )

Destructor

Member Functions Documentation

ConstructL()

void ConstructL ( ) [private]

DoCancel()

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() .

CActive::Cancel

DoGet()

void DoGet ( ) [private]

NewL(RBTRegistry &)

IMPORT_C CBTRegistryResponse * NewL ( RBTRegistry & aView ) [static]
Two-phase constructor to create a helper class to retrieve a set of results (a view) from the Registry
leave
OOM
Pre-condition
A non-empty view on the Registry task has been created
CreateView()

Parameters

RBTRegistry & aView the Registry subsession that has had a View created on it

Results()

IMPORT_C RBTDeviceArray & Results ( )

Get Results previously fetched from the Registry Server.

Pre-condition
The method Start needs to have been called, and notification of its completion received.

RunError(TInt)

TInt RunError ( TInt aError ) [private, virtual]

Parameters

TInt aError

RunL()

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::Start CActiveScheduler::Error CActiveScheduler::WaitForAnyRequest TRAPD

Start(TRequestStatus &)

IMPORT_C void Start ( TRequestStatus & aClientStatus )

Start fetching results from the Registry Server. When the request is complete, the results can be obtained via the Results() method.

Parameters

TRequestStatus & aClientStatus a TRequestStatus passed in by the caller

Member Enumerations Documentation

Enum TState

Enumerators

EGettingSize
EGettingResults

Member Data Documentation

RBTDeviceArray iArray

RBTDeviceArray iArray [private]

TRequestStatus * iClientStatus

TRequestStatus * iClientStatus [private]

HBufC8 * iResponseBuf

HBufC8 * iResponseBuf [private]

TPtr8 iResponsePtr

TPtr8 iResponsePtr [private]

TState iState

TState iState [private]

RBTRegistry & iView

RBTRegistry & iView [private]