--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/testexecfw/tef/logger/src/server.cpp Mon Mar 08 15:03:44 2010 +0800
@@ -0,0 +1,373 @@
+/*
+* Copyright (c) 2005-2009 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:
+* Main log server engine.
+* Process log requests from multiple clients simultaneously.
+*
+*/
+
+
+
+/**
+ @file server.cpp
+*/
+#include "server.h"
+
+const TInt KLowMemBufLength = 128;
+
+CLogServer* CLogServer::NewL()
+/**
+ * @return - Instance of the log server
+ */
+ {
+ CLogServer * server = new (ELeave) CLogServer();
+ CleanupStack::PushL(server);
+ server->ConstructL();
+ // CServer base class call
+ server->StartL(KTestExecuteLogServerName);
+ CleanupStack::Pop(server);
+ return server;
+ }
+
+void CLogServer::ConstructL()
+/**
+ * Second phase construction
+ */
+ {
+ User::LeaveIfError(Fs().Connect());
+ }
+
+
+CLogServer::CLogServer() : CServer2(EPriorityStandard,ESharableSessions)
+/**
+ * Constructor
+ */
+ {
+ }
+
+CLogServer::~CLogServer()
+/**
+ * Destructor
+ */
+ {
+ // Close the array of control structures
+ LogControl().Close();
+ Fs().Close();
+ }
+
+
+CSession2* CLogServer::NewSessionL(const TVersion& /*aVersion*/,const RMessage2& /*aMessage*/) const
+/**
+ * @param RMessage - RMessage for the session open
+ */
+ {
+ // Just create the session
+ CLogSession* session = new (ELeave) CLogSession();
+ return session;
+ }
+
+void CLogServer::ControlComplete(CLogFileControl& aControl)
+/**
+ * @param aControl - Logfile control class reference
+ *
+ * Checks to see if this control session can be removed
+ */
+ {
+ // Check session count and the data buffers on the queue
+ if(aControl.SessionCount() || !aControl.QueueEmpty())
+ return;
+
+ // There are no subsessions mapped to the logfile control class and
+ // no data buffers on its write queue
+ // Loop through the server's control array and remove it then delete it
+ TInt i;
+ for(i=0;i<LogControl().Count();i++)
+ {
+ if(&aControl == LogControl()[i])
+ {
+ // Done
+ LogControl().Remove(i);
+ delete &aControl;
+ break;
+ }
+ }
+ // If it's the last one then exit the server
+ if(!LogControl().Count())
+ CActiveScheduler::Stop();
+ }
+
+
+///////
+
+CLogSession::CLogSession()
+/**
+ * Constructor
+ */
+ {
+ }
+
+CLogSession::~CLogSession()
+/**
+ * Destructor
+ */
+ {
+ // Check for null
+ // Session close without a createlog call leaves iControl null
+ if(!iControl)
+ return;
+ // A logfile control structure can have multiple server sessions
+ // decrement its server session count
+ iControl->RemoveSession();
+ CLogServer* p=(CLogServer*) Server();
+ // Shuts Down the server if this is the last open session
+ p->ControlComplete(*iControl);
+ }
+
+void CLogSession::ServiceL(const RMessage2& aMessage)
+/**
+ * @param aMessage - Function and data for the session
+ */
+ {
+ switch(aMessage.Function())
+ {
+ // API CreateLog() call
+ case RTestExecuteLogServ::ECreateLog :
+ {
+ // Sanity check to make sure it's not been called multiple times
+ if(iControl)
+ {
+ aMessage.Complete(KErrInUse);
+ break;
+ }
+ // Get the filepath
+ // size policed on the client side
+ TBuf<KMaxTestExecuteLogFilePath> logFilePath;
+ // Read it
+ aMessage.ReadL(0,logFilePath);
+ // Get the log mode in the second argument
+ RTestExecuteLogServ::TLogMode logMode;
+ logMode = (RTestExecuteLogServ::TLogMode)aMessage.Int1();
+ // Get a pointer to the parent server
+ CLogServer* server=(CLogServer*) Server();
+ // For compare's convert the whole path to lower case
+ logFilePath.LowerCase();
+ // Get rid of leading and trailing spaces.
+ logFilePath.Trim();
+ // Loop the through the server's logfile control class list
+ // to see if there's a match.
+ TInt i;
+ for(i=0;i<server->LogControl().Count();i++)
+ {
+ if(server->LogControl()[i]->LogFile() == logFilePath)
+ // This file's already in open so we don't have to open it
+ break;
+ }
+ TInt err = KErrNone;
+ // Check the count
+ if(i < server->LogControl().Count())
+ // Map this session to an existing logfile control class in the list
+ iControl = server->LogControl()[i];
+ else
+ {
+ // Create a new logfile control class
+ // creates/opens the logfile
+ TRAP(err,iControl = CLogFileControl::NewL(*server,logFilePath,logMode));
+ if(!err)
+ // Append it to the logfile control class list
+ server->LogControl().Append(iControl);
+ }
+ if(!err)
+ // Increment its session count
+ iControl->AddSession();
+ aMessage.Complete(err);
+ }
+ break;
+ // One of the API write calls
+ case RTestExecuteLogServ::EWriteLog :
+ {
+ // Sanity check
+ if(!iControl)
+ {
+ aMessage.Complete(KErrNotFound);
+ break;
+ }
+ // Data can be any size
+ // Get the length from second argument
+ TInt bufferLength = aMessage.Int1();
+ // Get a heap buffer of the right size
+ HBufC8* buffer = NULL;
+ TRAPD(err, buffer = HBufC8::NewL(bufferLength));
+ if (KErrNoMemory == err)
+ {
+ // If the buffer length is bigger than 128 and allocation failed, try to allocate
+ // 128 bytes and set it the low memory information.
+ if (bufferLength > KLowMemBufLength)
+ {
+ HBufC8* buf = HBufC8::NewL(KLowMemBufLength);
+ CleanupStack::PushL(buf);
+ TPtr8 ptr = buf->Des();
+ ptr.Copy(KLoggerNotEnoughMemory8);
+ CLogBuffer* logBuffer = new (ELeave) CLogBuffer(*buf);
+ CleanupStack::Pop(buf);
+ iControl->AddLogBuffer(*logBuffer);
+ }
+ }
+ else
+ {
+ CleanupStack::PushL(buffer);
+ TPtr8 ptr(buffer->Des());
+ // read the data
+ aMessage.ReadL(0,ptr);
+ // Get a buffer control class contructed with the heap data
+ // takes ownership
+ CLogBuffer* logBuffer = new (ELeave) CLogBuffer(*buffer);
+ CleanupStack::Pop(buffer);
+ // Add it to the logfile control class buffer queue
+ iControl->AddLogBuffer(*logBuffer);
+ }
+ if(!iControl->IsActive())
+ // AO is idle, kick into life
+ iControl->Kick();
+ aMessage.Complete(KErrNone);
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+///////
+
+CLogFileControl* CLogFileControl::NewL(CLogServer& aParent, const TDesC& aLogFilePath,RTestExecuteLogServ::TLogMode aMode)
+/**
+ * @param aParent - Server reference for callback
+ * @param aLogFilePath - Full path and filename of the logfile
+ * @param aMode - Overwrite or Append
+ *
+ * First phase construction for logfile control class
+ */
+ {
+ CLogFileControl* self = new (ELeave) CLogFileControl(aParent,aLogFilePath);
+ self->ConstructL(aMode);
+ return self;
+ }
+
+CLogFileControl::CLogFileControl(CLogServer& aParent,const TDesC& aLogFilePath) :
+ iParent(aParent),
+ iLogFileName(aLogFilePath),
+ iTransmitted(EFalse)
+/**
+ * @param aParent - Server reference for callback
+ * @param aLogFilePath - Full path and filename of the logfile
+ *
+ * Constructor - Safe initialisation
+ */
+ {
+ iQueue.SetOffset(CLogBuffer::LinkOffset());
+ }
+
+void CLogFileControl::ConstructL(RTestExecuteLogServ::TLogMode aMode)
+/**
+ * @param aMode - Overwrite or Append
+ *
+ * Second phase construction - Create or open the logfile
+ */
+ {
+ if(aMode == RTestExecuteLogServ::ELogModeOverWrite)
+ // In overwrite mode replace
+ User::LeaveIfError(iLogFile.Replace(iParent.Fs(),iLogFileName,EFileWrite|EFileShareAny));
+ else
+ {
+ // For append try open then replace
+ TInt err = iLogFile.Open(iParent.Fs(),iLogFileName,EFileWrite|EFileShareAny);
+ if(err != KErrNone)
+ // Bomb out if replace fails
+ User::LeaveIfError(iLogFile.Replace(iParent.Fs(),iLogFileName,EFileWrite|EFileShareAny));
+ else
+ {
+ // Open worked. Position at EOF
+ TInt pos;
+ User::LeaveIfError(iLogFile.Seek(ESeekEnd,pos));
+ }
+ }
+ }
+
+CLogFileControl::~CLogFileControl()
+/**
+ * Destructor
+ * The server maintains a list of these classes and will not destruct one if there
+ * is data on its queue
+ * Destructor just closes the file handle.
+ */
+ {
+ iLogFile.Close();
+ }
+
+void CLogFileControl::RunL()
+/**
+ * Main File writing pump
+ * Called on write completion or Kick() by the session that accepts the data
+ */
+ {
+#if (defined _DEBUG)
+ _LIT(KPanic,"LogEng RunL()");
+#endif
+ __ASSERT_DEBUG(iStatus.Int() == KErrNone,User::Panic(KPanic,iStatus.Int()));
+ // Check to see if this is the result of write completion
+ if(iTransmitted)
+ {
+ // Write completed
+ // Remove the buffer at the head of the queue and free it
+ CLogBuffer* buffer = iQueue.First();
+ iQueue.Remove(*buffer);
+ delete buffer;
+ }
+ // Check to see if there's more on the queue
+ if(!iQueue.IsEmpty())
+ {
+ // There is so write the head of the queue
+ CLogBuffer* buffer = iQueue.First();
+ SetActive();
+ // Set the flag to say we've transmitted
+ iTransmitted = ETrue;
+ iLogFile.Write(buffer->Buf(),iStatus);
+ iLogFile.Flush();
+ }
+ else
+ {
+ // Nothing on the queue
+ iTransmitted = EFalse;
+ // Call into the server to check if this resource can be freed
+ iParent.ControlComplete(*this);
+ }
+ }
+
+///////
+CLogBuffer::CLogBuffer(HBufC8& aLogBuffer) : iLogBuffer(aLogBuffer)
+/**
+ * @param aLogBuffer - Heap descriptor. This class takes ownership
+ * Constructor
+ */
+ {
+ }
+
+CLogBuffer::~CLogBuffer()
+/**
+ * Destructor
+ * This class owns a heap buffer so just free it
+ */
+ {
+ delete &iLogBuffer;
+ }