--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javacommons/comms/ipclib/clientserver/src.s60/commssession.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,205 @@
+/*
+* Copyright (c) 2008 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: CCommsSession handles communication with client side
+*
+*/
+
+#include <memory>
+
+#include "logger.h"
+
+#include "common.h"
+#include "commssession.h"
+#include "ipcserver.h"
+
+namespace java
+{
+namespace comms
+{
+using java::util::ScopedLock;
+
+CCommsSession::CCommsSession(IpcListener& aListener, int aPermissions)
+        : mListener(aListener), mClientPermissions(aPermissions)
+{
+}
+
+CCommsSession::~CCommsSession()
+{
+    while (!mMessageQueue.empty())
+    {
+        std::auto_ptr<HBufC8> tmp(mMessageQueue.front());
+        mMessageQueue.pop();
+    }
+}
+
+void CCommsSession::ServiceL(const RMessage2& aMessage)
+{
+    TInt function = aMessage.Function();
+    switch (function)
+    {
+    case ESend:
+        handleSendL(aMessage);
+        break;
+
+    case EReceive:
+        handleReceiveL(aMessage);
+        break;
+
+    case ECancelReceive:
+        handleCancelReceive(aMessage);
+        break;
+
+    default:
+        aMessage.Complete(KErrNotSupported);
+        break;
+    }
+}
+
+int CCommsSession::send(ipcMessage_t* aMsg)
+{
+    ScopedLock lock(mMutex);
+
+    // messages from server are considered to be always trusted
+    aMsg->ipcHeader.permissions = -1;
+    HBufC8* msg = messageToDes(*aMsg);
+    mMessageQueue.push(msg);
+
+    if (isReceivePending())
+    {
+        HBufC8* msg = mMessageQueue.front();
+
+        TInt rc = doSend(mReceiveMessage, *msg);
+        if (rc == KErrNone)
+        {
+            mMessageQueue.pop();
+            delete msg;
+        }
+        else
+        {
+            WLOG2(EJavaComms, "%s failed, err = %d", __PRETTY_FUNCTION__, rc);
+        }
+    }
+    return 0;
+}
+
+void CCommsSession::handleSendL(const RMessage2& aMessage)
+{
+    TInt len = aMessage.GetDesLengthL(0);
+    int rc = KErrNone;
+    if (len < sizeof(ipcHeader_t))
+    {
+        WLOG2(EJavaComms, "%s invalid message size, len = %d", __PRETTY_FUNCTION__, len);
+        rc = KErrArgument;
+    }
+    else
+    {
+        RBuf8 buffer;
+
+        buffer.CleanupClosePushL();
+        buffer.CreateL(len);
+
+        aMessage.ReadL(0,buffer);
+
+        char* buf = desToMessage(buffer);
+        ipcMessage_t* msg = reinterpret_cast<ipcMessage_t*>(buf);
+        if (msg->ipcHeader.length == len)
+        {
+            msg->ipcHeader.sender = getId();
+            msg->ipcHeader.permissions = mClientPermissions;
+            mListener.processMessage(msg);
+        }
+        else
+        {
+            WLOG3(EJavaComms, "%s message size does not match to header, len = %d header = %d",
+                  __PRETTY_FUNCTION__, len, msg->ipcHeader.length);
+            rc = KErrArgument;
+        }
+
+        delete[] buf;
+        CleanupStack::PopAndDestroy();
+    }
+    aMessage.Complete(rc);
+}
+
+void CCommsSession::handleReceiveL(const RMessage2& aMessage)
+{
+    ScopedLock lock(mMutex);
+
+    if (mMessageQueue.empty())
+    {
+        mReceiveMessage = aMessage;
+    }
+    else
+    {
+        HBufC8* msg = mMessageQueue.front();
+        TInt rc = doSend(aMessage, *msg);
+        if (rc == KErrNone)
+        {
+            mMessageQueue.pop();
+            delete msg;
+        }
+        else
+        {
+            WLOG2(EJavaComms, "%s failed, err = %d", __PRETTY_FUNCTION__, rc);
+        }
+    }
+}
+
+void CCommsSession::handleCancelReceive(const RMessage2& aMessage)
+{
+    ScopedLock lock(mMutex);
+
+    if (isReceivePending())
+    {
+        mReceiveMessage.Complete(KErrCancel);
+    }
+    aMessage.Complete(KErrNone);
+}
+
+bool CCommsSession::isReceivePending() const
+{
+    return !mReceiveMessage.IsNull();
+}
+
+int CCommsSession::getId() const
+{
+    // to be used as unique id to identify session - not as pointer
+    return (int)this;
+}
+
+TInt CCommsSession::doSend(const RMessagePtr2& aMessage, HBufC8& aData)
+{
+    TInt allocatedLength = aMessage.GetDesMaxLength(0);
+    TInt neededLength = aData.Length();
+
+    TPckgBuf<TInt> lengthPckg(neededLength);
+    TInt rc = aMessage.Write(1, lengthPckg);
+
+    if (rc == KErrNone && allocatedLength >= neededLength)
+    {
+        rc = aMessage.Write(0, aData.Des());
+    }
+    else
+    {
+        rc = KErrOverflow;
+        WLOG3(EJavaComms, "%s: allocated length for message is too small (required size=%d, allocated size=%d)",
+              __PRETTY_FUNCTION__, neededLength, allocatedLength);
+    }
+
+    aMessage.Complete(rc);
+    return rc;
+}
+
+} // namespace comms
+} // namespace java