piprofiler/engine/src/SamplerController.cpp
changeset 51 98307c651589
parent 42 0ff24a8f6ca2
child 52 c2f44e33b468
--- a/piprofiler/engine/src/SamplerController.cpp	Fri Aug 27 11:37:29 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,500 +0,0 @@
-/*
-* 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 "SamplerController.h"
-//#include <piprofiler/EngineUIDs.h>
-
-// CONSTANTS
-const TInt KMaxSamplerPluginCount = 20;
-const TInt KMaxExtraSettingsItemCount = 6;
-
-// LITERALS
-_LIT8(KSamplingPeriod, "sampling_period_ms");
-_LIT8(KNewLine8, "\n");
-_LIT8(KEquals8, "=");
-_LIT8(KSettingsText, " settings");
-_LIT(KNewLine, "\n");
-_LIT(KEquals, "=");
-_LIT(KCommentSeparator, " ; ");
-
-CSamplerController* CSamplerController::NewL(CProfilerSampleStream& aStream)
-    {
-    CSamplerController* self = new( ELeave ) CSamplerController(aStream);
-    CleanupStack::PushL( self );
-    self->ConstructL( );
-    CleanupStack::Pop( self );
-    return self;
-    }
-
-void CSamplerController::ConstructL()
-	{
-	// initiate sampler plugin list
-	InitialiseSamplerListL();
-	}
-
-
-CSamplerController::CSamplerController(CProfilerSampleStream& aStream) : 
-    iStream(aStream)
-	{
-	}
-
-void CSamplerController::InitialiseSamplerListL()
-    {
-    // create new sampler plugin array
-    iPluginArray = new (ELeave) CArrayPtrFlat<CSamplerPluginInterface>( KMaxSamplerPluginCount );
-    
-    // create plugin loader instance
-    iPluginLoader = CSamplerPluginLoader::NewL();
-    
-    // register sampler controller to get notifications of succesfull plugin load
-    iPluginLoader->SetObserver( this );
-    
-    // load sampler plugins asynchronously
-    iPluginLoader->LoadAsyncL( iPluginArray );
-    
-    LOGTEXT(_L(" RSamplerController::InitialiseUserSideSamplerList - exit"));	
-    }
-
-CSamplerController::~CSamplerController()
-	{
-	LOGTEXT(_L("CSamplerController::~CSamplerController - entry" ));
-	
-    if ( iPluginArray )
-        {
-        // destroy the plugin instances
-        // empty loaded plugins from array
-        for(TInt i(0);i<iPluginArray->Count();i++)
-            {
-            if(iPluginArray->At(i))
-                {
-                delete iPluginArray->At(i);
-                iPluginArray->At(i) = NULL;
-                }
-            }
-        iPluginArray->Reset();
-        delete iPluginArray;
-        iPluginArray = NULL;
-        }
-	
-	if ( iPluginLoader )
-	    {
-	    iPluginLoader->AbortAsyncLoad();
-	    delete iPluginLoader;
-	    iPluginLoader = NULL;
-	    }
-    
-	LOGTEXT(_L("CSamplerController::~CSamplerController - exit" ));
-	}
-
-void CSamplerController::SetObserver(MSamplerControllerObserver* aObserver)
-    {
-    iObserver = aObserver;
-    }
-    
-TInt CSamplerController::UpdateSavedSamplerAttributesL(CDesC8ArrayFlat* aSavedLineArray, CArrayFixFlat<TSamplerAttributes>* aAttributes)
-    {
-    TInt err(KErrNone);
-    TInt count(iPluginArray->Count());
-    // all plugins get their own settings among whole lump of setting strings
-    CSamplerPluginInterface* plugin = NULL;
-    
-    // loop through the plugin array
-    for(TInt i(0);i<count;i++)
-        {
-        // get each plugin at a time
-        plugin = iPluginArray->At(i);
-        
-        // call each plugin to sort out its own settings 
-        err = plugin->ConvertRawSettingsToAttributes(aSavedLineArray);
-        
-        // get plugin specific attributes, array may contain attributes of several sub samplers
-        plugin->GetAttributesL(aAttributes); 
-        }
-    
-    return err;
-    }
-
-TInt CSamplerController::SetSamplerSettingsL(TInt aUid, TSamplerAttributes aAttributes)
-    {
-    // parse right plugin based on UID
-    CSamplerPluginInterface* plugin = GetPlugin(TUid::Uid(aUid));
-    
-    // set the sampler attributes of a sampler plugin
-    plugin->SetAttributesL(aAttributes);
-    
-    return KErrNone;
-    }
-
-void CSamplerController::GetSamplerAttributesL(CArrayFixFlat<TSamplerAttributes>* aAttributes)
-    {
-    CSamplerPluginInterface* plugin = NULL;
-    
-    TInt count(iPluginArray->Count());
-    
-    // get first all the attributes from all the sampler plugins listed in iPluginArray
-    for(TInt i(0);i<count;i++)
-        {
-        // get the plugin first
-        plugin = iPluginArray->At(i);
-        
-        // get plugin specific attributes, array may contain attributes of several sub samplers
-        plugin->GetAttributesL(aAttributes); 
-        }
-    }
-
-void CSamplerController::ComposeAttributesToSettingsFileFormat(RFile& aFile, CArrayFixFlat<TSamplerAttributes>* aAttributes)
-    {
-    // write immediately to settings file
-    ComposeSettingsText(aFile, aAttributes);
-    }
-
-void CSamplerController::ComposeSettingsText(RFile& aFile, CArrayFixFlat<TSamplerAttributes>* aAttrArray)
-    {
-    // temporary buffer for a setting line
-    TBuf<384> settingLine;
-    TBuf8<384> settingLine8;
-    TInt itemCount(0);
-    TBuf<266> tBuf;
-    
-    TSamplerAttributes attr;
-    
-    for(TInt i(0);i<aAttrArray->Count();i++)
-        {
-        // get the attribute container 
-        attr = aAttrArray->At(i);
-        
-        // add the name and description of the sampler in brackets first
-        settingLine8.Copy(KBracketOpen);
-        settingLine8.Append(attr.iShortName);
-        settingLine8.Append(KBracketClose);
-        settingLine8.Append(KCommentSeparator());
-        settingLine8.Append(attr.iName);
-        settingLine8.Append(KSettingsText);
-        settingLine8.Append(KNewLine8);
-        aFile.Write(settingLine8);
-        
-        // enabled
-        settingLine8.Copy(KEnabled);
-        settingLine8.Append(KEquals8);
-        settingLine8.Append(Bool2Str(attr.iEnabled));
-        settingLine8.Append(KNewLine8);
-        aFile.Write(settingLine8);
-        
-        // sampling rate (if set)
-        if( attr.iSampleRate != -1 )
-            {
-            settingLine8.Copy(KSamplingPeriod);
-            settingLine8.Append(KEquals8);
-            settingLine8.Append(Int2Str(attr.iSampleRate));
-            settingLine8.Append(KNewLine8);
-            aFile.Write(settingLine8);
-            }
-        
-        itemCount = attr.iItemCount;
-        
-        // check if item count set is sane, max extra settings item count 6
-        if(itemCount > KMaxExtraSettingsItemCount)
-            {
-            // probably forgot to set the item count value in plugin => safe to set it 0
-            itemCount = 0;
-            }
-        
-        // setting items
-        for (TInt j(0);j<itemCount;j++)
-            {
-            switch(j)
-                {
-                case 0: // settingItem1
-                    {
-                    settingLine.Copy(attr.iSettingItem1.iSettingText);
-                    settingLine.Append(KEquals());
-                    settingLine.Append(attr.iSettingItem1.iValue);
-                    settingLine.Append(KCommentSeparator());
-                    settingLine.Append(attr.iSettingItem1.iUIText);
-                    settingLine.Append(KNewLine());
-                    CnvUtfConverter::ConvertFromUnicodeToUtf8(settingLine8, settingLine);
-                    aFile.Write(settingLine8);
-                    break;
-                    }
-                case 1: // settingItem2
-                    {
-                    settingLine.Copy(attr.iSettingItem2.iSettingText);
-                    settingLine.Append(KEquals());
-                    settingLine.Append(attr.iSettingItem2.iValue);
-                    settingLine.Append(KCommentSeparator());
-                    settingLine.Append(attr.iSettingItem2.iUIText);
-                    settingLine.Append(KNewLine());
-                    CnvUtfConverter::ConvertFromUnicodeToUtf8(settingLine8, settingLine);
-                    aFile.Write(settingLine8);
-                    break;
-                    }
-                case 2: // settingItem3
-                    {
-                    settingLine.Copy(attr.iSettingItem3.iSettingText);
-                    settingLine.Append(KEquals());
-                    settingLine.Append(attr.iSettingItem3.iValue);
-                    settingLine.Append(KCommentSeparator());
-                    settingLine.Append(attr.iSettingItem3.iUIText);
-                    settingLine.Append(KNewLine());
-                    CnvUtfConverter::ConvertFromUnicodeToUtf8(settingLine8, settingLine);
-                    aFile.Write(settingLine8);
-                    break;
-                    }
-                case 3: // settingItem4
-                    {
-                    settingLine.Copy(attr.iSettingItem4.iSettingText);
-                    settingLine.Append(KEquals());
-                    settingLine.Append(attr.iSettingItem4.iValue);
-                    settingLine.Append(KCommentSeparator());
-                    settingLine.Append(attr.iSettingItem4.iUIText);
-                    settingLine.Append(KNewLine());
-                    CnvUtfConverter::ConvertFromUnicodeToUtf8(settingLine8, settingLine);
-                    aFile.Write(settingLine8);
-                    break;
-                    }
-                case 4: // settingItem5
-                    {
-                    settingLine.Copy(attr.iSettingItem5.iSettingText);
-                    settingLine.Append(KEquals());
-                    settingLine.Append(attr.iSettingItem5.iValue);
-                    settingLine.Append(KCommentSeparator());
-                    settingLine.Append(attr.iSettingItem5.iUIText);
-                    settingLine.Append(KNewLine());
-                    CnvUtfConverter::ConvertFromUnicodeToUtf8(settingLine8, settingLine);
-                    aFile.Write(settingLine8);
-                    break;
-                    }
-                case 5: // settingItem6
-                    {
-                    settingLine.Copy(attr.iSettingItem6.iSettingText);
-                    settingLine.Append(KEquals());
-                    settingLine.Append(attr.iSettingItem6.iValue);
-                    settingLine.Append(KCommentSeparator());
-                    settingLine.Append(attr.iSettingItem6.iUIText);
-                    settingLine.Append(KNewLine());
-                    CnvUtfConverter::ConvertFromUnicodeToUtf8(settingLine8, settingLine);
-                    aFile.Write(settingLine8);
-                    break;
-                    }
-                }
-            }
-        }
-    }
-
-// ----------------------------------------------------------------------------
-// Converts given descriptor into TBool value.
-// ----------------------------------------------------------------------------
-//
-inline void CSamplerController::Str2Bool(const TDesC8& aBuf, TBool& aValue)
-    {
-    if (aBuf.CompareF(KFalse) == 0)
-        aValue = EFalse;
-    else
-        aValue = ETrue;
-    }
-
-// ----------------------------------------------------------------------------
-// Converts given descriptor into TInt value.
-// ----------------------------------------------------------------------------
-//
-inline void CSamplerController::Str2Int(const TDesC8& aBuf, TInt& aValue)
-    {
-    TLex8 conv;
-    conv.Assign(aBuf);
-    
-    if (conv.Val(aValue) != KErrNone)
-        aValue = 0;
-    }
-
-// ----------------------------------------------------------------------------
-// Converts given descriptor into TInt value.
-// ----------------------------------------------------------------------------
-//
-inline void CSamplerController::Str2Int(const TDesC8& aBuf, TUint32& aValue)
-    {
-    TInt temp(0);
-    
-    TLex8 conv;
-    conv.Assign(aBuf);
-    
-    if (conv.Val(temp) != KErrNone)
-        aValue = 0;
-    else
-        aValue = (TUint32)temp;
-    }
-
-// ----------------------------------------------------------------------------
-// Converts given boolean into a descriptor.
-// ----------------------------------------------------------------------------
-//
-inline TBuf8<16> CSamplerController::Bool2Str(const TBool& aValue)
-    {
-    TBuf8<16> buf;
-    
-    if (aValue)
-        buf.Copy(KTrue);
-    else
-        buf.Copy(KFalse);
-    
-    return buf;
-    }
-
-// ----------------------------------------------------------------------------
-// Converts given integer into a descriptor.
-// ----------------------------------------------------------------------------
-//
-inline TBuf8<16> CSamplerController::Int2Str(const TInt& aValue)
-    {
-    TBuf8<16> buf;
-    buf.AppendNum(aValue);
-   
-    return buf;
-    }
-
-
-void CSamplerController::HandlePluginLoaded( KSamplerPluginLoaderStatus aStatus )
-    {
-    
-    // process status value
-    switch(aStatus)
-        {
-        case 0:
-            LOGSTRING2("RSamplerController - one plugin loaded, status: %d", aStatus);
-            break;
-        case 1:
-            LOGSTRING2("RSamplerController - a plugin load failed: %d", aStatus);
-            break;
-        case 2:
-            LOGSTRING2("RSamplerController - plugin loading aborted: %d", aStatus);
-            break;
-        case 3:
-            LOGSTRING2("RSamplerController - all plugins loaded: %d", aStatus);
-            TRAPD(err, iPluginLoader->SortPluginsL(iPluginArray));
-            if(err != KErrNone)
-                {
-                LOGTEXT(_L("Sampler controller unable to sort plugins"));
-                }
-            
-            // call engine to finalize the startup
-            TRAPD(result, iObserver->HandleSamplerControllerReadyL(););
-            if(result != KErrNone)
-                {
-                LOGTEXT(_L("Failed to notify engine"));
-                }
-            break;
-        case 4:
-            LOGSTRING2("RSamplerController - error in loading plugins: %d", aStatus);
-            break;
-        default:
-            break;
-        }
-    }
-
-
-CSamplerPluginInterface* CSamplerController::GetPlugin(TUid aUid)
-	{
-	LOGTEXT(_L("RSamplerController::GetPlugin - entry"));
-	// check that plugin array contains samplers
-	if( iPluginArray && iPluginArray->Count() > 0 )
-	  {
-    	for(TInt i=0;i<iPluginArray->Count();i++)
-    		{
-	    	CSamplerPluginInterface* plugin = iPluginArray->At(i);
-	    	TUid uid = plugin->Id(-1);	// get parent uid first
-	    	if(uid == aUid)
-	    		{
-	    		LOGTEXT(_L("CSamplerController::GetPlugin() - main plug-in found!"));
-    			return plugin;
-				} 
-
-            if(plugin->SubId(aUid) != KErrNotFound)
-                {
-                LOGTEXT(_L("CSamplerController::GetPlugin() - subsampler found!"));
-                return plugin;
-                }
-    		}
-		}	
-	LOGTEXT(_L("CSamplerController::GetPlugin() - No plug-in found for UID"));
-
-	return (CSamplerPluginInterface*)0;
-	}
-
-// start user mode samplers
-void CSamplerController::StartSamplerPluginsL()
-    {
-    CSamplerPluginInterface* plugin = NULL;
-
-	if( iPluginArray )
-		{
-		TInt count(iPluginArray->Count());
-	
-		for(TInt i(0);i<count;i++)
-			{
-			plugin = iPluginArray->At(i);
-			// check if some error received when starting profiling
-			TRAPD(err, plugin->ResetAndActivateL(iStream));
-			LOGSTRING2(" RSamplerController::StartSamplerPlugin - plugin activated (0x%X)", plugin->Id(-1));  
-			if( err != KErrNone)
-				{
-				LOGSTRING2(" RSamplerController::StartSamplerPlugin - error %d", i);  
-				// handle received error, need to update UI!
-				iObserver->HandleError(err);
-				}
-            }
-	    }
-    }
-
-// stop user mode samplers
-TInt CSamplerController::StopSamplerPlugins()
-	{
-	TInt count(0);
-
-	if( iPluginArray && iPluginArray->Count() > 0 )
-		{
-		TInt i(0);
-		CSamplerPluginInterface* plugin = NULL;
-		// stop kernel mode samplers
-    	for(;i<iPluginArray->Count();i++)
-    		{
-			plugin = iPluginArray->At(i); 
-			TUint32 id = plugin->Id(-1).iUid;
-            LOGSTRING2(" CSamplerController::StopSamplerPlugins - traceId = %d",
-                        id);
-            // stop only started samplers
-            if(plugin->Enabled())
-                {
-                // stop selected plugin
-                plugin->StopSampling();
-                // check if user mode sampler, special flush needed to direct data to stream
-                if(plugin->GetSamplerType() == PROFILER_USER_MODE_SAMPLER)
-                    {
-                    LOGTEXT(_L(" CSamplerController::StopSamplerPlugins - flushing user mode sampler stream"));
-                    plugin->Flush();
-                    }
-                }
-            count++;
-    		}
-		}
-	return count; 	
-	}
-
-// end of file
-
-
-
-