ANSC_STATUS
HttpSpoPrvwoNotify
    (
        ANSC_HANDLE                 hThisObject,
        ANSC_HANDLE                 hSocket,
        ULONG                       ulEvent,
        ANSC_HANDLE                 hReserved
    )
{
    ANSC_STATUS                     returnStatus  = ANSC_STATUS_SUCCESS;
    PHTTP_SIMPLE_PROXY_OBJECT       pMyObject     = (PHTTP_SIMPLE_PROXY_OBJECT     )hThisObject;
    PHTTP_SIMPLE_PROXY_PROPERTY     pProperty     = (PHTTP_SIMPLE_PROXY_PROPERTY   )&pMyObject->Property;
    PANSC_SIMPLE_PROXY_TCP_OBJECT   pSimpleProxy  = (PANSC_SIMPLE_PROXY_TCP_OBJECT )pMyObject->hSimpleProxy;
    PANSC_DAEMON_SOCKET_TCP_OBJECT  pClientSocket = (PANSC_DAEMON_SOCKET_TCP_OBJECT)hSocket;
    PANSC_BROKER_SOCKET_TCP_OBJECT  pServerSocket = (PANSC_BROKER_SOCKET_TCP_OBJECT)NULL;
    PANSC_BUFFER_DESCRIPTOR         pBufferDesp   = (PANSC_BUFFER_DESCRIPTOR       )pClientSocket->GetBufferContext((ANSC_HANDLE)pClientSocket);
    PHTTP_PROXY_SESSION_OBJECT      pSession      = NULL;

    AnscTrace
        (
            "Event = %d is indicated on client connection of %d.%d.%d.%d / TCP %d\n",
            ulEvent,
            pClientSocket->PeerAddress.Dot[0],
            pClientSocket->PeerAddress.Dot[1],
            pClientSocket->PeerAddress.Dot[2],
            pClientSocket->PeerAddress.Dot[3],
            pClientSocket->PeerPort
        );

    switch ( ulEvent )
    {
        case    ANSC_SPTOWO_EVENT_SOCKET_ERROR :

                pClientSocket->ToClean((ANSC_HANDLE)pClientSocket, TRUE, HTTP_SPO_SOCKET_TTC);

                break;

        case    ANSC_SPTOWO_EVENT_SOCKET_CLOSED :

                AnscAcquireLock(&pMyObject->SyncLock);

                pSession = (PHTTP_PROXY_SESSION_OBJECT)pClientSocket->GetClientContext((ANSC_HANDLE)pClientSocket);

                if ( !pSession )
                {
                    AnscReleaseLock(&pMyObject->SyncLock);

                    pClientSocket->Finish((ANSC_HANDLE)pClientSocket);

                    break;
                }
                else
                {
                    pSession->AcquireAccess((ANSC_HANDLE)pSession);
                }

                AnscReleaseLock(&pMyObject->SyncLock);

                pBufferDesp->BlockSize += pClientSocket->RecvPacketSize;
                returnStatus            =
                    pClientSocket->SetBufferContext
                        (
                            (ANSC_HANDLE)pClientSocket,
                            NULL,
                            0,
                            (ANSC_HANDLE)NULL
                        );

                returnStatus            =
                    pSession->FinishedByClient
                        (
                            (ANSC_HANDLE)pSession,
                            AnscBdoGetBlock    (pBufferDesp),
                            AnscBdoGetBlockSize(pBufferDesp),
                            (ANSC_HANDLE)pBufferDesp
                        );

                pSession->ReleaseAccess((ANSC_HANDLE)pSession);

                pClientSocket->Finish((ANSC_HANDLE)pClientSocket);

                break;

        case    ANSC_SPTOWO_EVENT_RESOURCES :

                break;

        case    ANSC_SPTOWO_EVENT_TIME_OUT :

                break;

        default :

                break;
    }

    return  ANSC_STATUS_SUCCESS;
}
ULONG
HttpSpoPrvwoQuery
    (
        ANSC_HANDLE                 hThisObject,
        ANSC_HANDLE                 hSocket,
        PVOID                       buffer,
        ULONG                       ulSize,
        PANSC_HANDLE                phQueryContext
    )
{
    ANSC_STATUS                     returnStatus   = ANSC_STATUS_SUCCESS;
    PHTTP_SIMPLE_PROXY_OBJECT       pMyObject      = (PHTTP_SIMPLE_PROXY_OBJECT     )hThisObject;
    PHTTP_SIMPLE_PROXY_PROPERTY     pProperty      = (PHTTP_SIMPLE_PROXY_PROPERTY   )&pMyObject->Property;
    PANSC_SIMPLE_PROXY_TCP_OBJECT   pSimpleProxy   = (PANSC_SIMPLE_PROXY_TCP_OBJECT )pMyObject->hSimpleProxy;
    PANSC_DAEMON_SOCKET_TCP_OBJECT  pClientSocket  = (PANSC_DAEMON_SOCKET_TCP_OBJECT)hSocket;
    PANSC_BROKER_SOCKET_TCP_OBJECT  pServerSocket  = (PANSC_BROKER_SOCKET_TCP_OBJECT)NULL;
    PANSC_BUFFER_DESCRIPTOR         pBufferDesp    = (PANSC_BUFFER_DESCRIPTOR       )pClientSocket->GetBufferContext((ANSC_HANDLE)pClientSocket);
    PHTTP_PROXY_SESSION_OBJECT      pSession       = NULL;
    ULONG                           ulSptoPmode    = ANSC_SPTOWO_PMODE_PROCESS_SYNC;
    ULONG                           ulPsoQmode     = HTTP_PSO_QMODE_PROCESS;

    AnscAcquireLock(&pMyObject->SyncLock);

    pSession = (PHTTP_PROXY_SESSION_OBJECT)pClientSocket->GetClientContext((ANSC_HANDLE)pClientSocket);

    if ( !pSession )
    {
        AnscReleaseLock(&pMyObject->SyncLock);

        return  ANSC_SPTOWO_PMODE_FINISH;
    }
    else
    {
        pSession->AcquireAccess((ANSC_HANDLE)pSession);
    }

    AnscReleaseLock(&pMyObject->SyncLock);

    pBufferDesp->BlockSize += ulSize;
    ulPsoQmode              =
        pSession->QueryForClient
            (
                (ANSC_HANDLE)pSession,
                buffer,
                ulSize,
                (ANSC_HANDLE)pBufferDesp
            );

    switch ( ulPsoQmode )
    {
        case    HTTP_PSO_QMODE_COLLECT :

                pBufferDesp->BlockSize -= ulSize;
                ulSptoPmode             = ANSC_SPTOWO_PMODE_COLLECT;

                break;

        case    HTTP_PSO_QMODE_FORWARD :
        case    HTTP_PSO_QMODE_PROCESS :

                ulSptoPmode = ANSC_SPTOWO_PMODE_PROCESS_SYNC;

                break;

        default :

                ulSptoPmode = ANSC_SPTOWO_PMODE_FINISH;

                break;
    }

    *phQueryContext = (ANSC_HANDLE)ulPsoQmode;

    pSession->ReleaseAccess((ANSC_HANDLE)pSession);

    return  ulSptoPmode;
}
ANSC_STATUS
HttpSpoPrvwoProcessSync
    (
        ANSC_HANDLE                 hThisObject,
        ANSC_HANDLE                 hSocket,
        PVOID                       buffer,
        ULONG                       ulSize,
        ANSC_HANDLE                 hQueryContext
    )
{
    ANSC_STATUS                     returnStatus   = ANSC_STATUS_SUCCESS;
    PHTTP_SIMPLE_PROXY_OBJECT       pMyObject      = (PHTTP_SIMPLE_PROXY_OBJECT     )hThisObject;
    PHTTP_SIMPLE_PROXY_PROPERTY     pProperty      = (PHTTP_SIMPLE_PROXY_PROPERTY   )&pMyObject->Property;
    PANSC_SIMPLE_PROXY_TCP_OBJECT   pSimpleProxy   = (PANSC_SIMPLE_PROXY_TCP_OBJECT )pMyObject->hSimpleProxy;
    PHTTP_SBC_INTERFACE             pSbcIf         = (PHTTP_SBC_INTERFACE           )pMyObject->hSbcIf;
    PANSC_DAEMON_SOCKET_TCP_OBJECT  pClientSocket  = (PANSC_DAEMON_SOCKET_TCP_OBJECT)hSocket;
    PANSC_BROKER_SOCKET_TCP_OBJECT  pServerSocket  = (PANSC_BROKER_SOCKET_TCP_OBJECT)NULL;
    PANSC_BUFFER_DESCRIPTOR         pBufferDesp    = (PANSC_BUFFER_DESCRIPTOR       )pClientSocket->GetBufferContext((ANSC_HANDLE)pClientSocket);
    PHTTP_PROXY_SESSION_OBJECT      pSession       = NULL;
    ULONG                           ulPsoQmode     = (ULONG)hQueryContext;
    BOOL                            bFinishSocket  = FALSE;

    AnscAcquireLock(&pMyObject->SyncLock);

    pSession = (PHTTP_PROXY_SESSION_OBJECT)pClientSocket->GetClientContext((ANSC_HANDLE)pClientSocket);

    if ( !pSession )
    {
        AnscReleaseLock(&pMyObject->SyncLock);

        pClientSocket->Finish((ANSC_HANDLE)pClientSocket);

        return  ANSC_STATUS_SUCCESS;
    }
    else
    {
        pSession->AcquireAccess((ANSC_HANDLE)pSession);
    }

    AnscReleaseLock(&pMyObject->SyncLock);

    switch ( ulPsoQmode )
    {
        case    HTTP_PSO_QMODE_FORWARD :

                pServerSocket = (PANSC_BROKER_SOCKET_TCP_OBJECT)pSession->GetServerSocket((ANSC_HANDLE)pSession);

                if ( !pServerSocket)
                {
                    bFinishSocket = TRUE;
                    returnStatus  = ANSC_STATUS_INTERNAL_ERROR;

                    break;
                }
                else
                {
                    returnStatus =
                        pServerSocket->Send
                            (
                                (ANSC_HANDLE)pServerSocket,
                                buffer,
                                ulSize,
                                (ANSC_HANDLE)NULL
                            );
                }

                pBufferDesp->BlockSize = 0;

                break;

        case    HTTP_PSO_QMODE_PROCESS :

                pClientSocket->SetBufferContext
                    (
                        (ANSC_HANDLE)pClientSocket,
                        NULL,
                        0,
                        (ANSC_HANDLE)NULL
                    );

                returnStatus =
                    pSession->RecvFromClient
                        (
                            (ANSC_HANDLE)pSession,
                            buffer,
                            ulSize,
                            (ANSC_HANDLE)pBufferDesp
                        );

                if ( pSession->GetSessionState((ANSC_HANDLE)pSession) == HTTP_PSO_STATE_FINISHED )
                {
                    bFinishSocket = TRUE;

                    break;
                }

                break;

        default :

                returnStatus = ANSC_STATUS_UNAPPLICABLE;

                break;
    }

    pSession->ReleaseAccess((ANSC_HANDLE)pSession);

    if ( bFinishSocket )
    {
        pClientSocket->Finish((ANSC_HANDLE)pClientSocket);
    }

    return  returnStatus;
}
ANSC_STATUS
HttpSpoPrvwoRemove
    (
        ANSC_HANDLE                 hThisObject,
        ANSC_HANDLE                 hSocket
    )
{
    ANSC_STATUS                     returnStatus   = ANSC_STATUS_SUCCESS;
    PHTTP_SIMPLE_PROXY_OBJECT       pMyObject      = (PHTTP_SIMPLE_PROXY_OBJECT     )hThisObject;
    PHTTP_SIMPLE_PROXY_PROPERTY     pProperty      = (PHTTP_SIMPLE_PROXY_PROPERTY   )&pMyObject->Property;
    PANSC_SIMPLE_PROXY_TCP_OBJECT   pSimpleProxy   = (PANSC_SIMPLE_PROXY_TCP_OBJECT )pMyObject->hSimpleProxy;
    PHTTP_WAM_INTERFACE             pWamIf         = (PHTTP_WAM_INTERFACE           )pMyObject->hWamIf;
    PANSC_DAEMON_SOCKET_TCP_OBJECT  pClientSocket  = (PANSC_DAEMON_SOCKET_TCP_OBJECT)hSocket;
    PANSC_BROKER_SOCKET_TCP_OBJECT  pServerSocket  = (PANSC_BROKER_SOCKET_TCP_OBJECT)NULL;
    PANSC_BUFFER_DESCRIPTOR         pBufferDesp    = (PANSC_BUFFER_DESCRIPTOR       )pClientSocket->GetBufferContext((ANSC_HANDLE)pClientSocket);
    PHTTP_PROXY_SESSION_OBJECT      pSession       = NULL;

    AnscTrace
        (
            "PrvwoRemove removes the client connection of %d.%d.%d.%d / TCP %d\n",
            pClientSocket->PeerAddress.Dot[0],
            pClientSocket->PeerAddress.Dot[1],
            pClientSocket->PeerAddress.Dot[2],
            pClientSocket->PeerAddress.Dot[3],
            pClientSocket->PeerPort
        );

    AnscAcquireLock(&pMyObject->SyncLock);

    pSession = (PHTTP_PROXY_SESSION_OBJECT)pClientSocket->GetClientContext((ANSC_HANDLE)pClientSocket);

    if ( pSession )
    {
        pSession->AcquireAccess((ANSC_HANDLE)pSession);

        pServerSocket = (PANSC_BROKER_SOCKET_TCP_OBJECT)pSession->GetServerSocket((ANSC_HANDLE)pSession);
    }
    else
    {
        pServerSocket = NULL;
    }

    if ( pServerSocket )
    {
        pServerSocket->SetClientContext((ANSC_HANDLE)pServerSocket, (ANSC_HANDLE)NULL        );
        pServerSocket->ToClean         ((ANSC_HANDLE)pServerSocket, TRUE, HTTP_SPO_SOCKET_TTC);
    }

    AnscReleaseLock(&pMyObject->SyncLock);

    /*
     * Just a couple regular clean-up tasks to do:
     *
     *      (1) dis-associate the proxy session object from the client socket
     *      (2) clean the foreign buffer associated with the client socket
     *      (3) dis-associate the proxy session object from the server socket
     *
     * Note that we CANNOT clean the foreign buffer associated with the server socket because the
     * access to that buffer is NOT synchornized between the prv_recv() and pub_recv routines. It
     * SHOULD be done in the pub_remove() function.
     */
    pClientSocket->SetClientContext((ANSC_HANDLE)pClientSocket,          (ANSC_HANDLE)NULL);
    pClientSocket->SetBufferContext((ANSC_HANDLE)pClientSocket, NULL, 0, (ANSC_HANDLE)NULL);

    if ( pBufferDesp )
    {
        AnscFreeBdo((ANSC_HANDLE)pBufferDesp);
    }

    if ( !pSession )
    {
        return  ANSC_STATUS_SUCCESS;
    }

    pSession->ReleaseAccess((ANSC_HANDLE)pSession);
    pSession->Close        ((ANSC_HANDLE)pSession);
    pSession->Return       ((ANSC_HANDLE)pSession);

    return  ANSC_STATUS_SUCCESS;
}