Class CWapBoundCLPushService

class CWapBoundCLPushService : public CBase;

Description

Listens for WAP Push messages from any sender.

The class is an ECom plug-in interface. Clients use NewL() to request an implementation of the interface, and then call the interface's virtual functions to access the implementation's services.

The use of the plug-in architecture allows different implementations to use different underlying WAP stacks.

Functions can return system wide error codes, and also API-specific errors as defined in wapmsgerr.h.

Derivation

• CBase - Base class for all classes to be instantiated on the heap

• CWapBoundCLPushService - Listens for WAP Push messages from any sender

Members

Defined in CWapBoundCLPushService:
AwaitPush(), CWapBoundCLPushService(), CancelAwaitPush(), Connect(), Connect(), ConstructL(), GetBearer(), GetLocalAddress(), GetLocalPort(), GetServerAddress(), NewL(), NewL(), ~CWapBoundCLPushService()

Inherited from CBase:
Delete(), Extension_(), operator new()

static IMPORT_C CWapBoundCLPushService *NewL();

Description

Allocates and creates a new CWapBoundCLPushService object.

Return value

CWapBoundCLPushService * A new CWapBoundCLPushService object.

Leave codes

System wide error codes.

static IMPORT_C CWapBoundCLPushService *NewL(const TUid &aImplementation);

Description

Allocates and creates a new CWapBoundCLPushService object.

Parameters

const TUid &aImplementation

Return value

CWapBoundCLPushService * A new CWapBoundCLPushService object.

Leave codes

System wide error codes.

virtual IMPORT_C ~CWapBoundCLPushService();

Description

Destructor

protected: IMPORT_C CWapBoundCLPushService();

Description

protected: IMPORT_C void ConstructL();

Description

virtual TInt Connect(Wap::TBearer aBearer, Wap::TPort aPort, TBool aSecure, TInetAddr aInetAddr)=0;

Description

Connects to the WAP stack, opening an endpoint that can be used to listen for Push messages from any sender.

This overload of Connect() allows an IP address associated with a network interface to be specified. In multihomed systems, this can be used to specify the network interface to which the endpoint should be bound.

All CWapBoundCLPushService implementations must automatically close this endpoint upon destruction.

Parameters

Wap::TBearer aBearer The bearer to listen on. Use EAll to specify all bearers. Wap::TPort aPort The port to listen on. If set to 0, a local port will be chosen for the client's first SendTo() TBool aSecure Security flag to indicate whether WTLS should be used or not TInetAddr aInetAddr The address of the adapter to use

Return value

TInt KErrNone on successful completion, or one of the system error codes on failure.

virtual TInt Connect(Wap::TBearer aBearer, Wap::TPort aPort, TBool aSecure)=0;

Description

Connects to the WAP stack, opening an endpoint that can be used to listen for Push messages from any sender.

All CWapBoundCLPushService implementations must automatically close this endpoint upon destruction.

Parameters

Wap::TBearer aBearer The bearer to listen on. Use EAll to specify all bearers. Wap::TPort aPort The port to listen on. If set to 0, a local port will be chosen for the client's first SendTo() TBool aSecure Security flag to indicate whether WTLS should be used or not

Return value

TInt KErrNone on successful completion, or one of the system error codes on failure.

virtual TInt AwaitPush(TDes8 &aPushHeaders, TDes8 &aPushBody, TPckgBuf< TUint8 > &aPushIdPckg, TRequestStatus &aReqStatus)=0;

Description

Requests an asynchronous notification upon arrival of the next push message on the listening connection.

The request completes upon receipt of the message, filling the buffers with as much received data as possible. A return code indicates whether further data remains. The call must be re-issued for subsequent messages or to receive remaining data from a previous push message.

Parameters

TDes8 &aPushHeaders A client-allocated buffer that, on completion, is filled with the push message's header data TDes8 &aPushBody A client-allocated buffer that, on completion, is filled with the push message's body data TPckgBuf< TUint8 > &aPushIdPckg On completion, an integer ID that uniquely specifies the push message TRequestStatus &aReqStatus Asynchonrous status word, used by the service provider to notify the client when a push message has arrived. EMoreData is returned if more pushed data is available.

Return value

TInt KErrNone on successful completion, or one of the system error codes on failure.

virtual void CancelAwaitPush()=0;

Description

Cancels a previous push message request.

If a push message arrives, the client will not be notified.

virtual TInt GetLocalPort(Wap::TPort &aPort)=0;

Description

Gets the local port of this endpoint.

This is useful if the port was chosen automatically.

Parameters

Wap::TPort &aPort On return, the port number

Return value

TInt KErrNone on successful completion, or one of the system error codes on failure.

virtual TInt GetLocalAddress(HBufC8 *&aLocalHost)=0;

Description

Gets the local address of this endpoint.

Parameters

HBufC8 *&aLocalHost On return, the address of the local host. Clients must pass in a reference to a NULL HBufC8 pointer. The function allocates a new HBufC8 buffer to hold the address, and passes ownership of the buffer to the client.

Return value

TInt KErrNone on successful completion, or one of the system error codes on failure.

virtual TInt GetBearer(Wap::TBearer &aBearer)=0;

Description

Gets the bearer on which a received datagram arrived.

This is useful when EAll was specified as the bearer in Connect().

Parameters

Wap::TBearer &aBearer On return, the bearer

Return value

TInt KErrNone on successful completion, or one of the system error codes on failure.

virtual TInt GetServerAddress(HBufC8 *&aRemoteHost)=0;

Description

Gets the address of the remote server.

This function cannot be called when there is an outstanding AwaitPush().

Parameters

HBufC8 *&aRemoteHost On return, the address of the remote host. Clients must pass in a reference to a NULL HBufC8 pointer. The function allocates a new HBufC8 buffer to hold the address, and passes ownership of the buffer to the client.

Return value

TInt KErrNone on successful completion, KErrNotSupported if not implemented, or one of the system error codes on failure.