www.pudn.com > Bluetooth_PMP_Example_v1_0.zip > ServiceAdvertiser.cpp

/* 
* ============================================================================ 
*  Name     : CServiceAdvertiser from ServiceAdvertiser.h 
*  Part of  : BluetoothPMPExample 
*  Created  : 14.01.2004 by Forum Nokia 
*  Implementation notes: 
*     Initial content was generated by Series 60 AppWizard. 
*  Version  : 
*  Copyright: Nokia Corporation 
* ============================================================================ 
*/ 
 
// INCLUDE FILES 
#include  
#include "ServiceAdvertiser.h" 
 
 
// see https://www.bluetooth.org/foundry/assignnumb/document/service_discovery 
static const TInt KBTSerialClassID = 0x1101; 
 
// service name and description for our service 
_LIT(KBTServiceName, "BTpmp"); 
_LIT(KBTServiceDesc, "BTpmp"); 
 
 
CServiceAdvertiser* CServiceAdvertiser::NewL() 
	{ 
	CServiceAdvertiser* self = CServiceAdvertiser::NewLC(); 
    CleanupStack::Pop(self); 
	return self; 
	} 
 
 
CServiceAdvertiser* CServiceAdvertiser::NewLC() 
	{ 
	CServiceAdvertiser* self = new (ELeave) CServiceAdvertiser(); 
	CleanupStack::PushL(self); 
	self->ConstructL(); 
	return self; 
	} 
 
 
void CServiceAdvertiser::ConstructL() 
	{ 
	} 
 
 
// ---------------------------------------------------------------------------- 
// CServiceAdvertiser::CServiceAdvertiser() 
// 
// constructor 
// ---------------------------------------------------------------------------- 
CServiceAdvertiser::CServiceAdvertiser(): 
	iRecord(0), 
	iRecordState(0) 
	{ 
	} 
 
 
// ---------------------------------------------------------------------------- 
// CServiceAdvertiser::~CServiceAdvertiser() 
// 
// destructor 
// ---------------------------------------------------------------------------- 
CServiceAdvertiser::~CServiceAdvertiser() 
	{  
	StopAdvertiserL(); 
	} 
 
 
 
// ---------------------------------------------------------------------------- 
// CServiceAdvertiser::StartAdvertiserL(TInt aChannel) 
// 
// start service advertiser on given channel.  an entry to service discovery 
// database will be entered describing our advertised service. 
// ---------------------------------------------------------------------------- 
void CServiceAdvertiser::StartAdvertiserL(TInt aChannel) 
	{ 
	// open sdp session 
	User::LeaveIfError(iSdp.Connect()); 
	// open sdp database session     
	User::LeaveIfError(iSdpDB.Open(iSdp));	 
	// create a record of the correct service class 
	TUUID serviceUUID(KBT_serviceID); 
	iSdpDB.CreateServiceRecordL(serviceUUID, iRecord); 
 
	// add a protocol to the record 
	CSdpAttrValueDES* protocolDescriptorList = CSdpAttrValueDES::NewDESL(NULL); 
	CleanupStack::PushL(protocolDescriptorList); 
 
    TBuf8<1> channel; 
    channel.Append((TChar)aChannel); 
	// create protocol list for our service 
	protocolDescriptorList 
	->StartListL()   //  list of protocols required for this method 
		->BuildDESL() 
	    ->StartListL() 
		    ->BuildUUIDL(KL2CAP) 
		->EndListL() 
 
	    ->BuildDESL() 
		->StartListL() 
			->BuildUUIDL(KRFCOMM) 
	        ->BuildUintL(channel) 
		->EndListL() 
	->EndListL(); 
 
	// set protocol list to the record 
	iSdpDB.UpdateAttributeL(iRecord, KSdpAttrIdProtocolDescriptorList,  
		*protocolDescriptorList); 
	CleanupStack::PopAndDestroy(protocolDescriptorList); 
 
	// add a name to the record 
	iSdpDB.UpdateAttributeL(iRecord,  
								KSdpAttrIdBasePrimaryLanguage +  
									KSdpAttrIdOffsetServiceName,  
					            KBTServiceName); 
 
	// add a description to the record 
	iSdpDB.UpdateAttributeL(iRecord,  
			                    KSdpAttrIdBasePrimaryLanguage +  
									KSdpAttrIdOffsetServiceDescription, 
					            KBTServiceDesc); 
 
	// set service available 
	UpdateAvailabilityL(ETrue); 
	} 
 
 
// ---------------------------------------------------------------------------- 
// CServiceAdvertiser::StopAdvertiserL() 
// 
// stop service advertiser.  delete service record from service discovery 
// database to stop advertising.   
// ---------------------------------------------------------------------------- 
void CServiceAdvertiser::StopAdvertiserL() 
	{ 
	if ( iRecord!=0 )  
		{ 
		// delete out record from service discovery database 
		iSdpDB.DeleteRecordL(iRecord); 
		// close sdp and sdp db sessions 
		iSdpDB.Close(); 
		iSdp.Close(); 
		iRecord=0; 
		} 
	} 
 
 
 
// ---------------------------------------------------------------------------- 
// CServiceAdvertiser::UpdateAvailability(TBool aAvailable) 
// 
// set availability of our advertised service.  the service record on the 
// service discovery database will be updated accordingly. 
// ---------------------------------------------------------------------------- 
void CServiceAdvertiser::UpdateAvailabilityL(TBool aAvailable) 
	{ 
	TInt state = aAvailable ? 0xFF : 0x00; 
	// set availability 
	iSdpDB.UpdateAttributeL(iRecord, KSdpAttrIdServiceAvailability, state); 
	// mark record changed 
	iSdpDB.UpdateAttributeL(iRecord, KSdpAttrIdServiceRecordState,  
		++iRecordState); 
	}