/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
// INCLUDE FILES
#include "perfmon_engine.h"
#include <coeutils.h>
#include <bautils.h>
#include <eikenv.h>
#include <e32hal.h>
#include <u32std.h>
#include <s32file.h>
#include <akntitle.h>
#include <eikspane.h>
#include <aknnotewrappers.h>
_LIT(KDefaultLogFilePath, "c:\\data\\PerfMon.log");
const TInt KCalibrationLength = 2;
const TInt KMinimumSamplesLength = 16;
const TInt KCPUTimeMultiplier = 1000000; // used to avoid TReal conversions
const TInt KSettingsDrive = EDriveC;
_LIT(KSettingsFileName, "perfmon_settings.ini");
// --------------------------------------------------------------------------------------------
TInt CPULoadCount(TAny* aInt)
{
// increase the counter
(*(TUint*) aInt)++;
return 1;
}
TInt CPULoadNOPThread(TAny* aParam)
{
CTrapCleanup* pC = CTrapCleanup::New();
CActiveScheduler* pS = new CActiveScheduler;
CActiveScheduler::Install(pS);
CIdle* idle = CIdle::NewL(CActive::EPriorityLow);
TCallBack cb(CPULoadCount, aParam);
idle->Start(cb);
pS->Start();
delete idle;
delete pS;
delete pC;
return 0;
}
// ===================================== MEMBER FUNCTIONS =====================================
CPerfMonEngine::CPerfMonEngine() :
CActive(EPriorityUserInput)
{
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::ConstructL()
{
iCurrentCPUMode = ECPUModeNotSet;
iLogFileInitialized = EFalse;
iEnv = CEikonEnv::Static();
User::LeaveIfError(iLs.Connect());
User::LeaveIfError(iTimer.CreateLocal());
CActiveScheduler::Add(this);
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::ActivateEngineL()
{
// load settings
TRAP_IGNORE(LoadSettingsL());
// create data storages for the samples
CreateSamplesDataArrayL();
// set default modes
HandleSettingsChangeL();
// start sampling data immediately (jump to RunL)
iTimer.After(iStatus, 100);
SetActive();
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::DeActivateEngineL()
{
Cancel();
DeActivateCPUMonitoring();
// close log file
OpenLogFile(EFalse);
}
// --------------------------------------------------------------------------------------------
CPerfMonEngine::~CPerfMonEngine()
{
iTimer.Close();
// clear data storages
if (iSampleEntryArray)
{
for (TInt i = 0; i < iSampleEntryArray->Count(); i++)
{
delete iSampleEntryArray->At(i).iSampleDataArray;
}
delete iSampleEntryArray;
}
iLs.Close();
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::DoCancel()
{
iTimer.Cancel();
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::RunL()
{
// calculate new values
UpdateSamplesDataL();
// log changes
AppendLatestSamplesToLogsL();
// redraw views
SendDrawEventToContainersL();
// continue
iTimer.After(iStatus, iSettings.iHeartBeat * 1000); // convert from milliseconds to microseconds
SetActive();
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::HandleSettingsChangeL()
{
// set priority of the thread
RThread().SetPriority(SettingItemToThreadPriority(iSettings.iPriority));
// init cpu monitor if setting has been changed
if (iCurrentCPUMode != iSettings.iCPUMode)
{
DeActivateCPUMonitoring();
ActivateCPUMonitoringL();
}
// close log file
OpenLogFile(EFalse);
// enable log file
if (iSettings.iLoggingEnabled && (iSettings.iLoggingMode
== ELoggingModeLogFile || iSettings.iLoggingMode
== ELoggingModeRDebugLogFile))
OpenLogFile(ETrue);
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::EnableLogging(TBool aEnable)
{
if (aEnable)
{
if (iSettings.iLoggingMode == ELoggingModeLogFile
|| iSettings.iLoggingMode == ELoggingModeRDebugLogFile)
OpenLogFile(ETrue);
iSettings.iLoggingEnabled = ETrue;
}
else // disable
{
iSettings.iLoggingEnabled = EFalse;
OpenLogFile(EFalse);
}
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::OpenLogFile(TBool aOpen)
{
// open log file for writing
if (aOpen)
{
if (!iLogFileInitialized)
{
TInt err(KErrNone);
// open the log file for writing
if (iLogFile.Open(iEnv->FsSession(), iSettings.iLoggingFilePath,
EFileWrite) != KErrNone)
{
iEnv->FsSession().MkDirAll(iSettings.iLoggingFilePath);
err = iLogFile.Replace(iEnv->FsSession(),
iSettings.iLoggingFilePath, EFileWrite);
}
else
{
// file opens correctly, seek to the end
TInt fileSize = 0;
iLogFile.Size(fileSize);
err = iLogFile.Seek(ESeekCurrent, fileSize);
}
if (err == KErrNone)
{
iLogFileInitialized = ETrue;
}
else
{
// show error
CAknErrorNote* note = new (ELeave) CAknErrorNote();
note->ExecuteLD(_L("Unable to create log file, check settings"));
}
}
}
// close handle to log file
else
{
if (iLogFileInitialized)
{
iLogFile.Flush();
iLogFile.Close();
iLogFileInitialized = EFalse;
}
}
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::ActivateCPUMonitoringL()
{
// reset counter variables
iCPULoadCalibrating = ETrue;
iCPULoadCalibrationCounter = 0;
iCPULoadMaxValue = 999999999;
iCPULoadPreviousValue = 1;
iCPULoadCounter = 0;
// use null thread is cpu time is supported and the setting is on
if (CPUTimeSupported() && iSettings.iCPUMode == ECPUModeCPUTime)
{
// try to open handle to null thread
if (OpenHandleToNullThread())
{
// handle is open, get initial value
TTimeIntervalMicroSeconds time;
iNullThread.GetCpuTime(time);
iCPULoadPreviousValue = time.Int64();
iPreviousTime.HomeTime();
iCurrentCPUMode = ECPUModeCPUTime;
return; // cpu time is succesfully in use
}
}
// otherwise use normal sampling with nops
iCurrentCPUMode = ECPUModeNotSet;
// show a warning if cpu time cannot be taken in use
if (iSettings.iCPUMode == ECPUModeCPUTime)
{
CAknInformationNote* note = new (ELeave) CAknInformationNote();
note->ExecuteLD(
_L("CPU Time not supported in this system, using NOPs sampling"));
}
// create a thread for CPU load monitoring
User::LeaveIfError(iCPULoadThread.Create(_L("PerfMonCPULoad"),
CPULoadNOPThread, 0x1000, 0x1000, 0x100000, &iCPULoadCounter));
iCPULoadThread.SetPriority(EPriorityAbsoluteVeryLow);
iCPULoadThread.Resume();
iCurrentCPUMode = ECPUModeNOPs; // NOPs taken succesfully in use
}
// --------------------------------------------------------------------------------------------
TBool CPerfMonEngine::OpenHandleToNullThread()
{
// find the kernel process and then the null thread
TFindProcess fp(_L("ekern.exe*"));
TFullName kernelName;
if (fp.Next(kernelName) == KErrNone)
{
// process found, append null thread identifier
kernelName.Append(_L("::Null"));
// find the thread
TFindThread ft(kernelName);
TFullName threadName;
if (ft.Next(threadName) == KErrNone)
{
// open instance to the thread
if (iNullThread.Open(threadName) != KErrNone)
return EFalse;
}
}
// process not found
else
return EFalse;
// success!
return ETrue;
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::DeActivateCPUMonitoring()
{
if (iCurrentCPUMode == ECPUModeCPUTime)
{
iNullThread.Close();
}
else if (iCurrentCPUMode == ECPUModeNOPs)
{
// kill the cpu load thread
iCPULoadThread.Kill(0);
iCPULoadThread.Close();
}
}
// --------------------------------------------------------------------------------------------
TBool CPerfMonEngine::CPUTimeSupported()
{
TTimeIntervalMicroSeconds time;
TInt err = RThread().GetCpuTime(time);
if (err == KErrNone && time.Int64() > 0)
return ETrue;
else
return EFalse;
}
// --------------------------------------------------------------------------------------------
TThreadPriority CPerfMonEngine::SettingItemToThreadPriority(TInt aIndex)
{
TThreadPriority threadPriority = EPriorityNull;
switch (aIndex)
{
case EThreadPriorityTypeMuchLess:
{
threadPriority = EPriorityMuchLess;
break;
}
case EThreadPriorityTypeLess:
{
threadPriority = EPriorityLess;
break;
}
case EThreadPriorityTypeNormal:
{
threadPriority = EPriorityNormal;
break;
}
case EThreadPriorityTypeMore:
{
threadPriority = EPriorityMore;
break;
}
case EThreadPriorityTypeMuchMore:
{
threadPriority = EPriorityMuchMore;
break;
}
case EThreadPriorityTypeRealTime:
{
threadPriority = EPriorityRealTime;
break;
}
case EThreadPriorityTypeAbsoluteVeryLow:
{
threadPriority = EPriorityAbsoluteVeryLow;
break;
}
case EThreadPriorityTypeAbsoluteLow:
{
threadPriority = EPriorityAbsoluteLow;
break;
}
case EThreadPriorityTypeAbsoluteBackground:
{
threadPriority = EPriorityAbsoluteBackground;
break;
}
case EThreadPriorityTypeAbsoluteForeground:
{
threadPriority = EPriorityAbsoluteForeground;
break;
}
case EThreadPriorityTypeAbsoluteHigh:
{
threadPriority = EPriorityAbsoluteHigh;
break;
}
default:
{
User::Panic(_L("Wrong tp index"), 276);
break;
}
}
return threadPriority;
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::CreateSamplesDataArrayL()
{
TInt
maxSamples =
iSettings.iMaxSamples >= KMinimumSamplesLength ? iSettings.iMaxSamples
: KMinimumSamplesLength;
// create the data structure to store all samples
iSampleEntryArray = new (ELeave) CSampleEntryArray(16);
// add all source entries
for (TInt i = 0; i < ESourcesLength; i++)
{
TSampleEntry newSampleEntry;
if (i == ESourceCPU)
{
newSampleEntry.iDescription.Copy(_L("CPU"));
newSampleEntry.iUnitTypeShort.Copy(KNullDesC);
newSampleEntry.iUnitTypeLong.Copy(KNullDesC);
newSampleEntry.iDriveNumber = -1;
newSampleEntry.iGraphColor = KRgbYellow;
}
else if (i == ESourceRAM)
{
newSampleEntry.iDescription.Copy(_L("RAM"));
newSampleEntry.iUnitTypeShort.Copy(_L("b"));
newSampleEntry.iUnitTypeLong.Copy(_L("bytes"));
newSampleEntry.iDriveNumber = -1;
newSampleEntry.iGraphColor = KRgbGreen;
}
else //drives
{
TChar driveLetter = 'C' + i - ESourceC; // C is the first drive
newSampleEntry.iDescription.Append(driveLetter);
newSampleEntry.iDescription.Append(_L(":"));
newSampleEntry.iUnitTypeShort.Copy(_L("b"));
newSampleEntry.iUnitTypeLong.Copy(_L("bytes"));
iEnv->FsSession().CharToDrive(driveLetter,
newSampleEntry.iDriveNumber);
newSampleEntry.iGraphColor = KRgbCyan;
newSampleEntry.iGraphColor.SetGreen(255 - (i - ESourceC) * 30);
newSampleEntry.iGraphColor.SetRed(i * 30);
}
newSampleEntry.iSampleDataArray = new (ELeave) CSampleDataArray(
maxSamples);
iSampleEntryArray->AppendL(newSampleEntry);
}
// save current time as start time
iStartTime.HomeTime();
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::UpdateSamplesDataL()
{
// reset inactivity timers
if (iSettings.iKeepBacklightOn)
User::ResetInactivityTime();
// get current time
TTime currentTime;
currentTime.HomeTime();
// calculate time difference
TTimeIntervalMicroSeconds timeDeltaFromPreviousSample =
currentTime.MicroSecondsFrom(iPreviousTime);
// remember current time as previous
iPreviousTime = currentTime;
// get CPU
TInt64 cpuLoadDelta(0);
TInt64 cpuLoadFree(0);
TInt64 cpuLoadSize(0);
TInt64 currentCPUValue(0);
if (iCurrentCPUMode == ECPUModeCPUTime || iCurrentCPUMode == ECPUModeNOPs)
{
if (iCurrentCPUMode == ECPUModeCPUTime)
{
TTimeIntervalMicroSeconds time;
iNullThread.GetCpuTime(time);
currentCPUValue = time.Int64();
}
else if (iCurrentCPUMode == ECPUModeNOPs)
{
currentCPUValue = iCPULoadCounter;
}
// get delta and store the previous value
cpuLoadDelta = currentCPUValue - iCPULoadPreviousValue;
iCPULoadPreviousValue = currentCPUValue;
// velocity = distance / time
cpuLoadFree = cpuLoadDelta * KCPUTimeMultiplier
/ timeDeltaFromPreviousSample.Int64();
// detect maximum value
if (cpuLoadFree > iCPULoadMaxValue)
iCPULoadMaxValue = cpuLoadFree;
// check calibration status
if (iCPULoadCalibrating)
{
iCPULoadCalibrationCounter++;
cpuLoadSize = cpuLoadFree;
// check if need to calibrate anymore
if (iCPULoadCalibrationCounter > KCalibrationLength)
{
iCPULoadCalibrating = EFalse;
// from the samples, get the minimum value, and let it be the max value
for (TInt i = 0; i
< iSampleEntryArray->At(0).iSampleDataArray->Count(); i++)
{
TInt64 newCPULoadMaxValue = iCPULoadMaxValue;
if (iSampleEntryArray->At(0).iSampleDataArray->At(i).iFree
< newCPULoadMaxValue)
{
newCPULoadMaxValue
= iSampleEntryArray->At(0).iSampleDataArray->At(
i).iFree;
}
iCPULoadMaxValue = newCPULoadMaxValue;
}
// adjust priority of the poller thread
if (iCurrentCPUMode == ECPUModeNOPs)
{
iCPULoadThread.SetPriority(EPriorityAbsoluteVeryLow);
}
}
}
else
{
cpuLoadSize = iCPULoadMaxValue;
}
}
// save cpu sample data
TSampleData cpuSample;
cpuSample.iFree = cpuLoadFree;
cpuSample.iSize = cpuLoadSize;
cpuSample.iTimeFromStart = currentTime.MicroSecondsFrom(iStartTime);
iSampleEntryArray->At(0).iSampleDataArray->InsertL(0, cpuSample);
// get ram memory
TMemoryInfoV1Buf ramMemory;
UserHal::MemoryInfo(ramMemory);
TSampleData memorySample;
memorySample.iFree = ramMemory().iFreeRamInBytes;
memorySample.iSize = ramMemory().iMaxFreeRamInBytes;
memorySample.iTimeFromStart = currentTime.MicroSecondsFrom(iStartTime);
iSampleEntryArray->At(1).iSampleDataArray->InsertL(0, memorySample);
// all drives
for (TInt i = 2; i < iSampleEntryArray->Count(); i++)
{
TSampleData driveSample;
// get volume info from RFs
TVolumeInfo volumeInfo;
if (iEnv->FsSession().Volume(volumeInfo,
iSampleEntryArray->At(i).iDriveNumber) == KErrNone)
{
driveSample.iFree = volumeInfo.iFree;
driveSample.iSize = volumeInfo.iSize;
}
else
{
driveSample.iFree = 0;
driveSample.iSize = 0;
}
driveSample.iTimeFromStart = currentTime.MicroSecondsFrom(iStartTime);
iSampleEntryArray->At(i).iSampleDataArray->InsertL(0, driveSample);
}
// compress sample data arrays to save memory
TInt curLength(iSampleEntryArray->At(0).iSampleDataArray->Count());
TInt
maxSamples =
iSettings.iMaxSamples >= KMinimumSamplesLength ? iSettings.iMaxSamples
: KMinimumSamplesLength;
if (curLength > maxSamples && curLength % 5 == 0)
{
for (TInt i = 0; i < iSampleEntryArray->Count(); i++)
{
iSampleEntryArray->At(i).iSampleDataArray->ResizeL(maxSamples); // looses old samples
iSampleEntryArray->At(i).iSampleDataArray->Compress();
}
}
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::AppendLatestSamplesToLogsL()
{
if (iSettings.iLoggingEnabled && SampleEntryArray())
{
// loop all sources
for (TInt i = 0; i < SampleEntryArray()->Count(); i++)
{
// check if this setting has been enabled and it has some data
if (iSettings.iLoggingSources.iSrcEnabled[i]
&& SampleEntryArray()->At(i).iSampleDataArray->Count() > 0)
{
// get current sample
TSampleData& currentSample =
SampleEntryArray()->At(i).iSampleDataArray->At(0);
TBuf<128> buf;
buf.Append(_L("PERFMON;"));
buf.Append(SampleEntryArray()->At(i).iDescription);
buf.Append(_L(";"));
buf.AppendNum(currentSample.iTimeFromStart.Int64());
buf.Append(_L(";"));
buf.AppendNum(currentSample.iFree);
buf.Append(_L(";"));
buf.AppendNum(currentSample.iSize);
// print to RDebug
if (iSettings.iLoggingMode == ELoggingModeRDebug
|| iSettings.iLoggingMode == ELoggingModeRDebugLogFile)
{
RDebug::Print(buf);
}
// print to log file
if (iSettings.iLoggingMode == ELoggingModeLogFile
|| iSettings.iLoggingMode == ELoggingModeRDebugLogFile)
{
buf.Append(_L("\r\n"));
TBuf8<128> buf8;
buf8.Copy(buf);
iLogFile.Write(buf8);
}
}
}
}
}
void CPerfMonEngine::LoadSettingsL()
{
// set defaults
iSettings.iHeartBeat = 600;
iSettings.iMaxSamples = 64;
iSettings.iPriority = EThreadPriorityTypeNormal;
iSettings.iCPUMode = ECPUModeCPUTime;
iSettings.iKeepBacklightOn = ETrue;
iSettings.iDataPopupVisibility = EDataPopupVisbilityAlwaysOn;
// TODO: remove the next line once data popup is working
iSettings.iDataPopupVisibility = EDataPopupVisbilityAlwaysAlwaysOff;
iSettings.iDataPopupLocation = EDataPopupLocationTopRight;
iSettings.iDataPopupSources.SetDefaults1();
iSettings.iGraphsVerticalBarPeriod = 5;
iSettings.iGraphsSources.SetDefaults2();
iSettings.iLoggingMode = ELoggingModeRDebug;
iSettings.iLoggingFilePath.Copy(KDefaultLogFilePath);
iSettings.iLoggingSources.SetDefaults2();
iSettings.iLoggingEnabled = EFalse;
// make sure that the private path of this app in c-drive exists
iEnv->FsSession().CreatePrivatePath(KSettingsDrive); // c:\\private\\20011385\\
// handle settings always in the private directory
if (iEnv->FsSession().SetSessionToPrivate(KSettingsDrive) == KErrNone)
{
const TUid KUidPerfMon =
{
0x20011385
};
// open or create a dictionary file store
CDictionaryFileStore* settingsStore = CDictionaryFileStore::OpenLC(
iEnv->FsSession(), KSettingsFileName, KUidPerfMon);
LoadDFSValueL(settingsStore, KPMSettingHeartBeat, iSettings.iHeartBeat);
LoadDFSValueL(settingsStore, KPMSettingMaxSamples,
iSettings.iMaxSamples);
LoadDFSValueL(settingsStore, KPMSettingPriority, iSettings.iPriority);
LoadDFSValueL(settingsStore, KPMSettingCPUMode, iSettings.iCPUMode);
LoadDFSValueL(settingsStore, KPMSettingKeepBackLightOn,
iSettings.iKeepBacklightOn);
LoadDFSValueL(settingsStore, KPMSettingDataPopupVisbility,
iSettings.iDataPopupVisibility);
LoadDFSValueL(settingsStore, KPMSettingDataPopupLocation,
iSettings.iDataPopupLocation);
LoadDFSValueL(settingsStore, KPMSettingDataPopupSources,
iSettings.iDataPopupSources);
LoadDFSValueL(settingsStore, KPMSettingGraphsVerticalBarPeriod,
iSettings.iGraphsVerticalBarPeriod);
LoadDFSValueL(settingsStore, KPMSettingGraphsSources,
iSettings.iGraphsSources);
LoadDFSValueL(settingsStore, KPMSettingLoggingMode,
iSettings.iLoggingMode);
LoadDFSValueL(settingsStore, KPMSettingLoggingFilePath,
iSettings.iLoggingFilePath);
LoadDFSValueL(settingsStore, KPMSettingLoggingSources,
iSettings.iLoggingSources);
CleanupStack::PopAndDestroy(); // settingsStore
}
}
// --------------------------------------------------------------------------------------------
void CPerfMonEngine::SaveSettingsL()
{
// handle settings always in c:\\private\\20011385\\
if (iEnv->FsSession().SetSessionToPrivate( KSettingsDrive ) == KErrNone)
{
// delete existing store to make sure that it is clean and not eg corrupted
if (BaflUtils::FileExists(iEnv->FsSession(), KSettingsFileName))
{
iEnv->FsSession().Delete(KSettingsFileName);
}
const TUid KUidPerfMon =
{
0x20011385
};
// create a dictionary file store
CDictionaryFileStore* settingsStore = CDictionaryFileStore::OpenLC(
iEnv->FsSession(), KSettingsFileName, KUidPerfMon);
SaveDFSValueL(settingsStore, KPMSettingHeartBeat, iSettings.iHeartBeat);
SaveDFSValueL(settingsStore, KPMSettingMaxSamples,
iSettings.iMaxSamples);
SaveDFSValueL(settingsStore, KPMSettingPriority, iSettings.iPriority);
SaveDFSValueL(settingsStore, KPMSettingCPUMode, iSettings.iCPUMode);
SaveDFSValueL(settingsStore, KPMSettingKeepBackLightOn,
iSettings.iKeepBacklightOn);
SaveDFSValueL(settingsStore, KPMSettingDataPopupVisbility,
iSettings.iDataPopupVisibility);
SaveDFSValueL(settingsStore, KPMSettingDataPopupLocation,
iSettings.iDataPopupLocation);
SaveDFSValueL(settingsStore, KPMSettingDataPopupSources,
iSettings.iDataPopupSources);
SaveDFSValueL(settingsStore, KPMSettingGraphsVerticalBarPeriod,
iSettings.iGraphsVerticalBarPeriod);
SaveDFSValueL(settingsStore, KPMSettingGraphsSources,
iSettings.iGraphsSources);
SaveDFSValueL(settingsStore, KPMSettingLoggingMode,
iSettings.iLoggingMode);
SaveDFSValueL(settingsStore, KPMSettingLoggingFilePath,
iSettings.iLoggingFilePath);
SaveDFSValueL(settingsStore, KPMSettingLoggingSources,
iSettings.iLoggingSources);
settingsStore->CommitL();
CleanupStack::PopAndDestroy(); // settingsStore
}
}
// ---------------------------------------------------------------------------
void CPerfMonEngine::LoadDFSValueL(CDictionaryFileStore* aDicFS,
const TUid& aUid, TInt& aValue)
{
if (aDicFS->IsPresentL(aUid))
{
RDictionaryReadStream in;
in.OpenLC(*aDicFS, aUid);
aValue = in.ReadInt16L();
CleanupStack::PopAndDestroy(); // in
}
}
// ---------------------------------------------------------------------------
void CPerfMonEngine::LoadDFSValueL(CDictionaryFileStore* aDicFS,
const TUid& aUid, TDes& aValue)
{
if (aDicFS->IsPresentL(aUid))
{
RDictionaryReadStream in;
in.OpenLC(*aDicFS, aUid);
TInt bufLength = in.ReadInt16L(); // get length of descriptor
in.ReadL(aValue, bufLength); // get the descriptor itself
CleanupStack::PopAndDestroy(); // in
}
}
// ---------------------------------------------------------------------------
void CPerfMonEngine::LoadDFSValueL(CDictionaryFileStore* aDicFS,
const TUid& aUid, TPerfMonSources& aValue)
{
if (aDicFS->IsPresentL(aUid))
{
RDictionaryReadStream in;
in.OpenLC(*aDicFS, aUid);
TInt bufLength = in.ReadInt16L(); // get length of the array
if (bufLength < 0 || bufLength > ESourcesLength) // check for validaty
User::Leave(KErrNotSupported);
for (TInt i = 0; i < bufLength; i++) // get all items
aValue.iSrcEnabled[i] = in.ReadInt16L();
CleanupStack::PopAndDestroy(); // in
}
}
// ---------------------------------------------------------------------------
void CPerfMonEngine::SaveDFSValueL(CDictionaryFileStore* aDicFS,
const TUid& aUid, const TInt& aValue)
{
RDictionaryWriteStream out;
out.AssignLC(*aDicFS, aUid);
out.WriteInt16L(aValue);
out.CommitL();
CleanupStack::PopAndDestroy(); // out
}
// ---------------------------------------------------------------------------
void CPerfMonEngine::SaveDFSValueL(CDictionaryFileStore* aDicFS,
const TUid& aUid, const TDes& aValue)
{
RDictionaryWriteStream out;
out.AssignLC(*aDicFS, aUid);
out.WriteInt16L(aValue.Length()); // write length of the descriptor
out.WriteL(aValue, aValue.Length()); // write the descriptor itself
out.CommitL();
CleanupStack::PopAndDestroy(); // out
}
// ---------------------------------------------------------------------------
void CPerfMonEngine::SaveDFSValueL(CDictionaryFileStore* aDicFS,
const TUid& aUid, const TPerfMonSources& aValue)
{
RDictionaryWriteStream out;
out.AssignLC(*aDicFS, aUid);
out.WriteInt16L(ESourcesLength); // write length of the array
for (TInt i = 0; i < ESourcesLength; i++) // write all items
out.WriteInt16L(aValue.iSrcEnabled[i]);
out.CommitL();
CleanupStack::PopAndDestroy(); // out
}
// ---------------------------------------------------------------------------
// End of File