--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/javacommons/comms/ipclib/clientserver/src.s60/commssession.cpp Mon May 03 12:27:20 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