taskmgrappview.cpp

S60下的任务管理器!可以实现应用程序切换,结束进程,压缩内存,重启手机,手机系统信息,进程信息,视图切换等功能.

	
		CleanupStack::PopAndDestroy( aText1 ); 	
		CleanupStack::PopAndDestroy( aText ); 
		AppThread.Close();
	}
}

void CtaskmgrAppView::ShowSystemInfo()
{
	HBufC *aText = iEikonEnv->AllocReadResourceLC( R_SYSTEM_INFO); 
	HBufC *aText1 = HBufC::NewLC(650);
	
	TBuf<10> aCpu,aCpuAbi;
	TBuf<12> aStartUpReason;
	TBuf<10> aDeviceFamily;
	TBuf<10> aPowerExternal;
	TInt aTickPeriod,aCpuSpeed,aRam,aRamFree,aRom,aPageSize;
	TInt aResult;
	
	
	HAL::Get(HALData::ECPU,aResult);
	if(aResult == HALData::ECPU_ARM){
		aCpu.Copy(_L("ARM"));
	}else 
	if(aResult == HALData::ECPU_ARM){
		aCpu.Copy(_L("MCORE"));
	}else{
		aCpu.Copy(_L("X86"));	
	}
	
	HAL::Get(HALData::ECPUABI,aResult);	
	if(aResult == HALData::ECPUABI_ARM4){
		aCpuAbi.Copy(_L("ARM4"));
	}else 
	if(aResult == HALData::ECPUABI_THUMB){
		aCpuAbi.Copy(_L("THUMB"));
	}else 
	if(aResult == HALData::ECPUABI_MCORE){
		aCpuAbi.Copy(_L("MCORE"));
	}else 
	if(aResult == HALData::ECPUABI_MSVC){
		aCpuAbi.Copy(_L("MSVC"));
	}else 
	if(aResult == HALData::ECPUABI_ARM5T){
		aCpuAbi.Copy(_L("ARM5T"));
	}else 
	if(aResult == HALData::ECPUABI_ARMI){
		aCpuAbi.Copy(_L("ARMI"));
	}
	
	
	HAL::Get(HALData::ECPUSpeed,aCpuSpeed);
	HAL::Get(HALData::ESystemTickPeriod,aTickPeriod);
	HAL::Get(HALData::EMemoryRAM,aRam);		
	HAL::Get(HALData::EMemoryRAMFree,aRamFree);		
	HAL::Get(HALData::EMemoryROM,aRom);		
	HAL::Get(HALData::EMemoryPageSize,aPageSize);								
	HAL::Get(HALData::EPowerExternal,aResult);
	if(aResult)
		aPowerExternal.Copy(_L("YES"));
	else
		aPowerExternal.Copy(_L("NO"));
	
	
	HAL::Get(HALData::EDeviceFamily,aResult);	
	if(aResult == HALData::EDeviceFamily_Crystal){
		aDeviceFamily.Copy(_L("Crystal"));
	}else 
	if(aResult == HALData::EDeviceFamily_Pearl){
		aDeviceFamily.Copy(_L("Pearl"));
	}else{
		aDeviceFamily.Copy(_L("Quartz"));	
	}
	
	HAL::Get(HALData::ESystemStartupReason,aResult);	
	if(aResult == HALData::ESystemStartupReason_Cold){
		aStartUpReason.Copy(_L("Cold Reset"));
	}else 
	if(aResult == HALData::ESystemStartupReason_Warm){
		aStartUpReason.Copy(_L("Warm Reset"));
	}else{
		aStartUpReason.Copy(_L("Fault"));	
	}
	
	_LIT(aCpuSpecs,"%S %d Mhz");
	TBuf<50> aFinalSpecs;
	aFinalSpecs.Format(aCpuSpecs,&aCpu,(aCpuSpeed/1000));
	
	aText1->Des().Format(aText->Des(),
						&aDeviceFamily,//Device Family : %S\n
						&aFinalSpecs,//CPU Specs : %S \n
						&aCpuAbi,//CPU ABI : %S\n
						&aStartUpReason,//Startup Reason : %S \n
						aTickPeriod,//Tick Period : %d \n
						(aRam/1024),//Total RAM size : %d kb\n
						(aRamFree/1024),//Free RAM size : %d kb\n
						(aRom/1024),//Total ROM size : %d kb\n
						aPageSize//Page size : %d bytes\n
						);
						
						
	ShowInfoDialog(R_SYSTEM_TITLE,*aText1);
	
	CleanupStack::PopAndDestroy( aText1 ); 	
	CleanupStack::PopAndDestroy( aText ); 
}

void CtaskmgrAppView::ShowProcessInfo()
{
	if(iAppState == EProcessListState){
		HBufC *aText = iEikonEnv->AllocReadResourceLC( R_PROCESS_INFO); 
		HBufC *aText1 = HBufC::NewLC(600);
		
		TPtrC aPtr = iListBox->Model()->ItemText(iListBox->CurrentItemIndex());
		TFindProcess aProcess2(_L("*"));
		TFullName aResult;
		while(aProcess2.Next(aResult)==KErrNone){
			TInt idx = aPtr.Find(aResult);
			if(idx!=KErrNotFound){
				/*"Process id : %d\nCmd line : %S\n	File name : %S\n
				Process RAM size : %d kb\nLoaded from : %S\n
				Priority : %S\nProtected : %S";*/
				RProcess aProcess;
				aProcess.Open(aProcess2);
				TProcessMemoryInfo aInfo ;
				aProcess.GetMemoryInfo(aInfo);
				TUint32 aSize = (aInfo.iCodeSize + 
								aInfo.iConstDataSize + 
								aInfo.iInitialisedDataSize + 
								aInfo.iUninitialisedDataSize);
		
		
				TProcessPriority aPriority = aProcess.Priority();
				TBuf<25> aBufPrio;
				switch(aPriority){
					case  EPriorityLow:aBufPrio.Copy(_L("LOW"));break;
					case  EPriorityBackground:aBufPrio.Copy(_L("BACKGROUND"));break;
					case  EPriorityForeground:aBufPrio.Copy(_L("FOREGROUND"));break;
					case  EPriorityHigh:aBufPrio.Copy(_L("HIGH"));break;
					case  EPriorityWindowServer:aBufPrio.Copy(_L("*WINDOW SEVER"));break;
					case  EPriorityFileServer:aBufPrio.Copy(_L("*FILE SERVER"));break;
					case  EPriorityRealTimeServer:aBufPrio.Copy(_L("*REAL TIME SERVER"));break;
					case  EPrioritySupervisor:aBufPrio.Copy(_L("*SUPERVISOR"));break;
				}
		
				TBuf<5> BufProc;
				BufProc.Copy(aProcess.Protected()?_L("YES"):_L("NO"));
				
				TBuf<5> BufLoaded;
				BufLoaded.Copy(aProcess.LoadedFromRam()?_L("RAM"):_L("ROM"));
				
				TInt aLen = aProcess.CommandLineLength();
				
				TBuf<200> CmdLine;
				if(aLen)
					aProcess.CommandLine(CmdLine);
				else
					CmdLine.Copy(_L("N/A"));
				
				TBuf<200> aFileName;
				aFileName.Copy(aProcess.FileName());
				
				TUint32 IntUid = aProcess.Id();

				aText1->Des().Format(aText->Des(),IntUid,&aFileName,
				&CmdLine,aSize,&BufLoaded,&aBufPrio,&BufProc);
				
				aProcess.Close();
				ShowInfoDialog(R_PROCESS_TITLE,*aText1);
		
				CleanupStack::PopAndDestroy( aText1 ); 	
				CleanupStack::PopAndDestroy( aText ); 
				break;
			}
		}//end of while
	}//end of if
}



void  CtaskmgrAppView::ShowInfoDialog(TInt aTitleResId,TDesC& aInfoTxt)
{
	HBufC *aTitle = iEikonEnv->AllocReadResourceLC( aTitleResId); 
	CAknMessageQueryDialog* dlg = new (ELeave)CAknMessageQueryDialog(); 
	
	dlg->PrepareLC( R_MESSAGE_QUERY ); 
	
	dlg->SetMessageTextL(aInfoTxt);
	dlg->QueryHeading()->SetTextL( aTitle->Des() ); 
	dlg->RunLD(); 

	CleanupStack::PopAndDestroy( aTitle ); 
}


void  CtaskmgrAppView::SwitchView()
{
	if(iAppState == ETaskListState){
		FillProcessList();
	}else if(iAppState == EProcessListState){
		FillTaskList();
	}
}


void CtaskmgrAppView::CompressHeaps()
{
	TBuf<200> aBuf;
	TInt BeforeFree=0,AfterFree=0;	
	TInt FreeHeapSize = 0;	
	_LIT(KHeap,"Total heap freed \n [ %d kb ]");	
	CAknInformationNote* informationNote;
	HAL::Get(HALData::EMemoryRAMFree,BeforeFree);
	User::CompressAllHeaps();
	HAL::Get(HALData::EMemoryRAMFree,AfterFree);
	FreeHeapSize = (AfterFree - BeforeFree) / 1024;
	aBuf.Format(KHeap,FreeHeapSize);
    informationNote = new (ELeave) CAknInformationNote;
	informationNote->ExecuteLD(aBuf);
}

void  CtaskmgrAppView::FillProcessList()
{
	InitProcessList();
	iAppState = EProcessListState;
}
	
void  CtaskmgrAppView::FillTaskList()
{
	InitTaskList();
	iAppState = ETaskListState;
}
	
void  CtaskmgrAppView::SwitchToApp()
{
	if(iAppState == ETaskListState){
		TInt ItemSelected;	
		ItemSelected = iListBox->CurrentItemIndex();
		TUid KillThisUid = UidArray[ItemSelected];
		TApaTaskList aList(CEikonEnv::Static()->WsSession());
		TApaTask ATask3 = aList.FindApp(KillThisUid);
		ATask3.BringToForeground();
	}
}

void  CtaskmgrAppView::RestartDevice()
{
	//UserSvr::ResetMachine(EStartupWarmReset);
	//another method to restart the machine lets test this.
	RDebug::Fault(0);
}

void  CtaskmgrAppView::InitProcessList()
{
	CEikStatusPane* sp=iEikonEnv->AppUiFactory()->StatusPane();
	CAknTitlePane* tp=(CAknTitlePane*)sp->ControlL(TUid::Uid(EEikStatusPaneUidTitle));
	tp->SetTextL(_L("Process List")); // Set the text string.

	if(iAppList){
		iAppList->Reset();
		delete iAppList;
		iAppList = NULL;
	}

	_LIT(KItemFormatString,"\t%S\t%S\t");
	_LIT(KSecondItem,"Process No : %d");
	iProcCount = 0;
	iListBox->Reset();
	TFindProcess aProcess(_L("*"));
	TFullName aResult;
	while(aProcess.Next(aResult)==KErrNone){
		iProcCount++;
	}

	iProcList = new (ELeave) CDesCArrayFlat(iProcCount);
	TFindProcess aProcess1(_L("*"));
	TInt dummyCount = 0;
	CDesCArray *itemList  = new (ELeave) CDesCArrayFlat(iProcCount);	
	while(aProcess1.Next(aResult)==KErrNone){
		TBuf<200> Item;
		TBuf<200> Item1;
		Item1.Format(KSecondItem,dummyCount++);
		Item.Format(KItemFormatString,&aResult,&Item1);
		itemList->AppendL(Item);
	}
		
	//set items and ownership
	iListBox->Model()->SetItemTextArray(itemList);
	iListBox->Model()->SetOwnershipType(ELbmOwnsItemArray);	

	iListBox->SetCurrentItemIndex(0);
	iListBox->SetFocus(ETrue); 
}

void CtaskmgrAppView::KillProcess()
{
	if(iAppState == EProcessListState){
		TPtrC aPtr = iListBox->Model()->ItemText(iListBox->CurrentItemIndex());
		TFindProcess aProcess2(_L("*"));
		TFullName aResult;
		while(aProcess2.Next(aResult)==KErrNone){
			TInt idx = aPtr.Find(aResult);
			if(idx!=KErrNotFound){//found process
				RProcess aProcess;
				aProcess.Open(aProcess2);
				aProcess.Kill(0);
				aProcess.Close();
				InitProcessList();
				break;
			}
		}
	}
}



void CtaskmgrAppView::ShowAbout()
{
	HBufC *aText = iEikonEnv->AllocReadResourceLC( R_ABOUT);
	ShowInfoDialog(R_ABOUT_TITLE,*aText);
	CleanupStack::PopAndDestroy( aText ); 	
}