/*

* 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:

*

*/

#include <string.h>

#include <unistd.h>

#include <bttypes.h>

#include "logger.h"

#include "fs_methodcall.h"

#include "functionserver.h"

#include "javasymbianoslayer.h"

#include "bluetoothfunctionserver.h"

#include "bluetoothclientconnection.h"

#include <string.h>

using namespace std;

using namespace java::util;

using namespace java::bluetooth;

OS_EXPORT BluetoothClientConnection::BluetoothClientConnection

(BluetoothFunctionServer* server):

        mShutdownNotifyMonitor(NULL),

        mReadNotifyMonitor(NULL),

        mBuffer(NULL, 0),

        mSendNotifyMonitor(NULL),

        mNegotiatedReceiveMtu(0),

        mNegotiatedTransmitMtu(0),

        mRemoteBTAddr(0),

        mConnectNotifyMonitor(NULL),

        mMakeJavaCallbackOnRead(EFalse),

        mReadPending(EFalse),

        mBufferInitialized(EFalse)

{

    JELOG2(EJavaBluetooth);

}

OS_EXPORT BluetoothClientConnection::BluetoothClientConnection

(CBluetoothSocket* aSocket, BluetoothFunctionServer* aServer):

        mServer(aServer),

        mSocket(aSocket),

        mShutdownNotifyMonitor(NULL),

        mReadNotifyMonitor(NULL),

        mBuffer(NULL, 0),

        mSendNotifyMonitor(NULL),

        mNegotiatedReceiveMtu(0),

        mNegotiatedTransmitMtu(0),

        mRemoteBTAddr(0),

        mMakeJavaCallbackOnRead(EFalse),

        mReadPending(EFalse),

        mBufferInitialized(EFalse)

{

    JELOG2(EJavaBluetooth);

}

OS_EXPORT BluetoothClientConnection::~BluetoothClientConnection()

{

    JELOG2(EJavaBluetooth);

    CloseFs();

    delete mReadNotifyMonitor;

    delete mSendNotifyMonitor;

    delete mShutdownNotifyMonitor;

    if (mBufferInitialized)

    {

        delete mBuffer.Ptr();

    }

}

// NOTE:

// TO be called by server objects doing accept and open.

// To be called always in Function server context

// Must be called only after connection has been successfully established

OS_EXPORT void BluetoothClientConnection::initialize(int protocol,

        TInt64 aRemoteAddr, int aReceiveMtu, int aTransmitMtu)

{

    JELOG2(EJavaBluetooth);

    // Set CBluetoothSocket to notify this object on events.

    mSocket->SetNotifier(*this);

    mProtocol = protocol;

    mRemoteBTAddr = aRemoteAddr;

    mNegotiatedReceiveMtu = aReceiveMtu;

    mNegotiatedTransmitMtu = aTransmitMtu;

    // Because of this call, we must call initialize in FS context

    ReceiveData();

}

OS_EXPORT int BluetoothClientConnection::init(int protocol)

{

    JELOG2(EJavaBluetooth);

    TRAPD(result, CallMethodL(this, &BluetoothClientConnection::InitL,

                              protocol, mServer));

    return result;

}

/**

 * Should be called in FunctionServer Context before any method of this class is called

 * Look at bluetoothconsts.h for constants:

 * PROTOCOL_L2CAP for L2CAP & PROTOCOL_RFCOMM for RFCOMM

 */

void BluetoothClientConnection::InitL(TInt protocol)

{

    JELOG2(EJavaBluetooth);

    //Connect to SocketServer

    User::LeaveIfError(mSocketServ.Connect());

    User::LeaveIfError(mSocketServ.ShareAuto());

    TProtocolDesc pdesc;

    if (PROTOCOL_L2CAP == protocol)

    {

        User::LeaveIfError(mSocketServ.FindProtocol(KL2CAPDesC(), pdesc));

        mSocket = CBluetoothSocket::NewL(*this, mSocketServ, pdesc.iSockType,

                                         KL2CAP);

    }

    else

    {

        User::LeaveIfError(mSocketServ.FindProtocol(KRFCOMMDesC(), pdesc));

        mSocket = CBluetoothSocket::NewL(*this, mSocketServ, pdesc.iSockType,

                                         KRFCOMM);

    }

    mProtocol = protocol;

}

OS_EXPORT void BluetoothClientConnection::close()

{

    if (NULL == mShutdownNotifyMonitor)

    {

        mShutdownNotifyMonitor = Monitor::createMonitor();

    }

    CallMethod(this, &BluetoothClientConnection::CloseFs, mServer);

    mShutdownNotifyMonitor->wait();

    delete mSocket;

    mSocket = 0;

}

void BluetoothClientConnection::CloseFs()

{

    JELOG2(EJavaBluetooth);

    if (mSocket)

    {

        mMakeJavaCallbackOnRead = EFalse;

        mSocket->CancelAll();

        mSocket->Shutdown(RSocket::EImmediate);

    }

}

/**

 * Calls ReceiveData in FunctionServer Context and allocates

 * memory needed and assigns to inBuf

 */

OS_EXPORT int BluetoothClientConnection::receive(char* &inBuf)

{

    JELOG2(EJavaBluetooth);

    // This receive must read the data already buffered and return the data.

    // For L2CAP the size of internal buffer should be the same as the

    // negotiated receive mtu.

    // For RFCOMM, it must be the same as java side buffer.

    // receive never blocks.

    int returnValue = mReadStatus;

    if (KErrNone == mReadStatus)

    {

        //Assign output parameter.

        int dataRead = mBuffer.Length();

        inBuf = new char[dataRead + 1];

        memcpy(inBuf, mBuffer.Ptr(), dataRead);

        inBuf[dataRead] = 0;

        LOG1(EJavaBluetooth, EInfo,

             "  BluetoothClientConnection::receive: Length of inBuf: %d",

             strlen((inBuf)));

        LOG1(EJavaBluetooth, EInfo,

             "- BluetoothClientConnection::receive: Length: %d", dataRead);

        returnValue = dataRead;

    }

    else

    {

        if (KErrEof == mReadStatus)

        {

            LOG(EJavaBluetooth, EInfo,

                "- BluetoothClientConnection::receive: EOF");

            returnValue = 0;

        }

        else if (KErrDisconnected == mReadStatus)

        {

            ELOG(EJavaBluetooth,

                 "- BluetoothClientConnection::receive Disconnected");

            return returnValue;

        }

    }

    // Trigger next read before returning.

    CallMethod(mReadStatus, this, &BluetoothClientConnection::ReceiveData,

               mServer);

    // IF we reach here, it means that something got messed up :)

    return returnValue;

}

OS_EXPORT void BluetoothClientConnection::registerCallback(JNIEnv* aJni,

        jobject peer)

{

    JELOG2(EJavaBluetooth);

    if (!(mServer->attachedToVm()))

    {

        LOG(EJavaBluetooth, EInfo,

            "+ BluetoothClientConnection::registerCallback Attaching to VM."

            " Should be called only in case of Push");

        mServer->attach(aJni, peer);

    }

    mMakeJavaCallbackOnRead = ETrue;

    jclass peerClass = aJni->GetObjectClass(peer);

    mReadCompleteCallback = aJni->GetMethodID(peerClass,

                            "receiveCompleteCallback", "(J)V");

}

void BluetoothClientConnection::makeReadCompleteCallback()

{

    JELOG2(EJavaBluetooth);

    JNIEnv* jni = mServer->getValidJniEnv();

    jobject peer = mServer->getPeer();

    (*jni).CallVoidMethod(peer, mReadCompleteCallback,

                          reinterpret_cast<jlong>(this));

    mMakeJavaCallbackOnRead = EFalse;

}

//Should be called in FunctionServer context.

TInt BluetoothClientConnection::ReceiveData()

{

    JELOG2(EJavaBluetooth);

    if (!mBufferInitialized)

    {

        TUint8 *tempBuf = NULL;

        int length = 512;

        if (PROTOCOL_L2CAP == mProtocol)

        {

            length = mNegotiatedReceiveMtu;

            tempBuf = new TUint8[length];

        }

        else

        {

            tempBuf = new TUint8[length];

            // NOTE: Size of this buffer should be the same as that specifie in BluetoothStreamer.

        }

        mBuffer.Set(tempBuf, 0, length);

        mBufferInitialized = ETrue;

    }

    TInt error = 0;

    //RecvOneOrMore does not block until the whole buffer is filled.

    //Returns as soon as some data is available.

    if (PROTOCOL_L2CAP == mProtocol)

    {

        // mBuffer should be the same as the negotiated MTU value.

        error = mSocket->Read(mBuffer);

    }

    else

    {

        LOG1(

            EJavaBluetooth,

            EInfo,

            "  BluetoothClientConnection::ReceiveData on RFCOMM Length: %d",

            mBuffer.MaxSize());

        error = mSocket->RecvOneOrMore(mBuffer, 0, mSockXfrLength);

    }

    if (KErrNone == error)

    {

        mReadPending = true;

    }

    LOG1(EJavaBluetooth, EInfo,

         "- BluetoothClientConnection::ReceiveData Err:%d", error);

    return error;

}

/**

 * Sends data by calling SendData in Function Server context.

 * Blocks until send is complete.

 */

OS_EXPORT int BluetoothClientConnection::send(const char* data, int length)

{

    JELOG2(EJavaBluetooth);

    LOG1(EJavaBluetooth, EInfo, "  BluetoothClientConnection::send: Data Length: %d ",

         length);

    if (KErrDisconnected == mReadStatus)

    {

        ELOG(EJavaBluetooth, "  BluetoothClientConnection::send Disconnected");

        return mReadStatus;

    }

    if (NULL == data || 0 == length)

    {

        return 0;

    }

    if (!mSendNotifyMonitor)

    {

        mSendNotifyMonitor = Monitor::createMonitor();

    }

    TPtr8 dataPtr((TUint8 *) data, length, length);

    LOG1(EJavaBluetooth, EInfo,

         "  BluetoothClientConnection::send: Sending data length:%d", length);

    TInt error = 0;

    CallMethod(error, this, &BluetoothClientConnection::SendData, dataPtr,

               mServer);

    LOG(EJavaBluetooth, EInfo,

        "  BluetoothClientConnection::send: Waiting for data to come back");

    if (KErrNone == error)

    {

        mSendNotifyMonitor->wait();

    }

    else

    {

        return error;

    }

    ELOG1(EJavaBluetooth,

          "- BluetoothClientConnection::send: Sent status:%d", mWriteStatus);

    return mWriteStatus;

}

TInt BluetoothClientConnection::SendData(const TDesC8& aData)

{

    JELOG2(EJavaBluetooth);

    return mSocket->Send(aData, 0);

}

OS_EXPORT int BluetoothClientConnection::connect(long long aBtAddress,

        int aChannel, bool aAuthenticate, bool aEncrypt, int aReceiveMTU,

        int aTransmitMTU)

{

    JELOG2(EJavaBluetooth);

    if (NULL == mConnectNotifyMonitor)

    {

        mConnectNotifyMonitor = Monitor::createMonitor();

    }

    TInt auth = (aAuthenticate) ? 1 : 0;

    TInt enc = (aEncrypt) ? 1 : 0;

    TInt64 btAddress = aBtAddress;

    TInt channel = aChannel;

    mRequestedRMtu = aReceiveMTU;

    mRequestedTMtu = aTransmitMTU;

    TInt retVal = 0;

    CallMethod(retVal, this, &BluetoothClientConnection::Connect, btAddress,

               channel, auth, enc, mRequestedRMtu, mRequestedTMtu, mServer);

    if (0 == retVal)

    {

        mRemoteBTAddr = aBtAddress;

        // Will be notified by HandleConnectCompleteL()

        mConnectNotifyMonitor->wait();

        return mConnectError;

    }

    return retVal;

}

TInt BluetoothClientConnection::Connect(TInt64 btAddress, TInt channel,

                                        TInt authenticate, TInt encrypt, TInt receiveMTU, TInt transmitMTU)

{

    JELOG2(EJavaBluetooth);

    LOG3(

        EJavaBluetooth,

        EInfo,

        "  BluetoothClientConnection::Connect: Channel %d, RMTU: %d TMTU %d",

        channel, receiveMTU, transmitMTU);

    LOG1(EJavaBluetooth, EInfo, "  BluetoothClientConnection::Connect %lX",

         btAddress);

    LOG(EJavaBluetooth, EInfo,

        "  BluetoothClientConnection::Connect: Applying Settings");

    TBTDevAddr btDeviceAddress(btAddress);

    TBTSockAddr btsockaddr;

    btsockaddr.SetBTAddr(btDeviceAddress);

    btsockaddr.SetPort(channel);

    // Set security

    TBTServiceSecurity secSettings;

    if (authenticate == EFalse)

        secSettings.SetAuthentication(EFalse);

    else

        secSettings.SetAuthentication(ETrue);

    if (encrypt == EFalse)

        secSettings.SetEncryption(EFalse);

    else

        secSettings.SetEncryption(ETrue);

    // Attach the security settings.

    btsockaddr.SetSecurity(secSettings);

    if (PROTOCOL_L2CAP == mProtocol)

    {

        TL2CapConfigPkg options;

        if (receiveMTU >= KL2MinMTU)

            options().SetMaxReceiveUnitSize(receiveMTU);

        else

            options().SetMaxReceiveUnitSize(DEFAULT_MTU);

        if (transmitMTU >= KL2MinMTU)

            options().SetMaxTransmitUnitSize(transmitMTU);

        mSocket->SetOpt(KL2CAPUpdateChannelConfig, KSolBtL2CAP, options);

    }

    // Will be set once handle connect complete is called.

    mConnectError = 0;

    LOG(EJavaBluetooth, EInfo,

        "  BluetoothClientConnection::StartListenerL: Connecting to Server");

    int error = mSocket->Connect(btsockaddr);

    return error;

}

OS_EXPORT int BluetoothClientConnection::getTransmitMTU()

{

    return mNegotiatedTransmitMtu;

}

OS_EXPORT int BluetoothClientConnection::getReceiveMTU()

{

    return mNegotiatedReceiveMtu;

}

OS_EXPORT long long BluetoothClientConnection::getRemoteAddress()

{

    JELOG2(EJavaBluetooth);

    if (mRemoteBTAddr)

    {

        return mRemoteBTAddr;

    }

    return -1;

}

OS_EXPORT long BluetoothClientConnection::available()

{

    JELOG2(EJavaBluetooth);

    if (KErrDisconnected == mReadStatus)

    {

        ELOG(EJavaBluetooth,

             "  BluetoothClientConnection::available Disconnected");

        return mReadStatus;

    }

    if (mReadPending)

    {

        return 0;

    }

    else

    {

        return mBuffer.Length();

    }

}

//------------------------------------------------------------------------------

//  Methods from MBluetoothSocketNotifier to handle Bluetooth Events

//------------------------------------------------------------------------------

//Notification of an accept complete event

void BluetoothClientConnection::HandleAcceptCompleteL(TInt /*err*/)

{

    LOG1(EJavaBluetooth, EInfo,

         "+  BluetoothClientConnection::HandleAcceptCompleteL %s",

         "WARNING: Nothing to handle in this event !!");

}

// Notification of a baseband event

void BluetoothClientConnection::HandleActivateBasebandEventNotifierCompleteL(

    TInt /*aErr*/, TBTBasebandEventNotification& /*aEventNotification*/)

{

    LOG1(

        EJavaBluetooth,

        EInfo,

        "+  BluetoothClientConnection::HandleActivateBasebandEventNotifierCompleteL %s",

        "WARNING: Nothing to handle in this event !!");

}

//Notification of a connection complete event

void BluetoothClientConnection::HandleConnectCompleteL(TInt err)

{

    JELOG2(EJavaBluetooth);

    mConnectError = err;

    LOG1(EJavaBluetooth, EInfo,

         "  BluetoothClientConnection::HandleConnectCompleteL: %d", err);