--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/perfmon/engine/src/perfmon_engine.cpp Tue Aug 31 15:15:20 2010 +0300
@@ -0,0 +1,925 @@
+/*
+ * 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