Frontends/VBoxBFE/USBProxyService.cpp

	USBProxyService.cpp revision a275c09e02fec4e58e2579339b9e12bb02666bd3
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/** @file
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan *
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * VBox frontends: Basic Frontend (BFE):
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * Implemenation of USBProxyService class
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * Copyright (C) 2006-2007 innotek GmbH
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan *
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * This file is part of VirtualBox Open Source Edition (OSE), as
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * available from http://www.virtualbox.org. This file is free software;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * you can redistribute it and/or modify it under the terms of the GNU
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * General Public License as published by the Free Software Foundation,
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * distribution. VirtualBox OSE is distributed in the hope that it will
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * be useful, but WITHOUT ANY WARRANTY of any kind.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan#include "USBProxyService.h"
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan#include "Logging.h"
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan#include <VBox/err.h>
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan#include <iprt/asm.h>
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan#include <iprt/semaphore.h>
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/** @todo add the required locking. */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/**
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * Initialize data members.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki RajagopalanUSBProxyService::USBProxyService (HostUSB *aHost)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    : mHost (aHost), mThread (NIL_RTTHREAD), mTerminate (false), mDevices (), mLastError (VINF_SUCCESS)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    LogFlowMember (("USBProxyService::USBProxyService: aHost=%p\n", aHost));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/**
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * Empty destructor.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki RajagopalanUSBProxyService::~USBProxyService()
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    LogFlowMember (("USBProxyService::~USBProxyService: \n"));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    Assert (mThread == NIL_RTTHREAD);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    mDevices.clear();
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    mTerminate = true;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    mHost = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanbool USBProxyService::isActive (void)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return mThread != NIL_RTTHREAD;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanint USBProxyService::getLastError (void)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return mLastError;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanint USBProxyService::start (void)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    int rc = VINF_SUCCESS;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    if (mThread == NIL_RTTHREAD)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         * Force update before starting the poller thread.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        wait (0);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        processChanges ();
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         * Create the poller thread which will look for changes.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        mTerminate = false;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        rc = RTThreadCreate (&mThread, USBProxyService::serviceThread, this,
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                             0, RTTHREADTYPE_INFREQUENT_POLLER, RTTHREADFLAGS_WAITABLE, "USBPROXY");
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        AssertRC (rc);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        if (VBOX_SUCCESS (rc))
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            LogFlow (("USBProxyService::start: started mThread=%RTthrd\n", mThread));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            mThread = NIL_RTTHREAD;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            mLastError = rc;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        LogFlow (("USBProxyService::start: already running, mThread=%RTthrd\n", mThread));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return rc;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanint USBProxyService::stop (void)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    int rc = VINF_SUCCESS;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    if (mThread != NIL_RTTHREAD)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         * Mark the thread for termination and kick it.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        ASMAtomicXchgSize (&mTerminate, true);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        rc = interruptWait();
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        AssertRC (rc);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         * Wait for the thread to finish and then update the state.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        rc = RTThreadWait (mThread, 60000, NULL);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        if (rc == VERR_INVALID_HANDLE)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            rc = VINF_SUCCESS;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        if (VBOX_SUCCESS (rc))
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            LogFlowMember (("USBProxyService::stop: stopped mThread=%RTthrd\n", mThread));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            mThread = NIL_RTTHREAD;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            mTerminate = false;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            AssertRC (rc);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            mLastError = rc;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        LogFlowMember (("USBProxyService::stop: not active\n"));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return rc;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/**
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * Sort a list of USB devices.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan *
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * @returns Pointer to the head of the sorted doubly linked list.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan * @param   aDevices        Head pointer (can be both singly and doubly linked list).
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanstatic PUSBDEVICE sortDevices (PUSBDEVICE pDevices)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    PUSBDEVICE pHead = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    PUSBDEVICE pTail = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    while (pDevices)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /* unlink head */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        PUSBDEVICE pDev = pDevices;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pDevices = pDev->pNext;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        if (pDevices)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            pDevices->pPrev = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /* find location. */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        PUSBDEVICE pCur = pTail;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        while (     pCur
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan               &&   HostUSBDevice::compare (pCur, pDev) > 0)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            pCur = pCur->pPrev;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /* insert (after pCur) */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pDev->pPrev = pCur;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        if (pCur)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            pDev->pNext = pCur->pNext;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            pCur->pNext = pDev;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            if (pDev->pNext)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                pDev->pNext->pPrev = pDev;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                pTail = pDev;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            pDev->pNext = pHead;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            if (pHead)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                pHead->pPrev = pDev;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                pTail = pDev;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            pHead = pDev;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return pHead;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanvoid USBProxyService::processChanges (void)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    LogFlowMember (("USBProxyService::processChanges: \n"));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan     * Get the sorted list of USB devices.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan     */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    PUSBDEVICE pDevices = getDevices();
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    if (pDevices)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pDevices = sortDevices (pDevices);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         * Compare previous list with the previous list of devices
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         * and merge in any changes while notifying Host.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan         */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        HostUSBDeviceList::iterator It = this->mDevices.begin();
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        while (     It != mDevices.end()
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan               ||   pDevices)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan             * Compare.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan             */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            HostUSBDevice *DevPtr = 0; /* shut up gcc */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            int iDiff;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            if (It == mDevices.end())
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                iDiff = 1;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                DevPtr = *It;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                if (!pDevices)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    iDiff = -1;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    iDiff = DevPtr->compare (pDevices);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            if (!iDiff)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                 * Device still there, update the state and move on.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                 */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                if (DevPtr->updateState (pDevices))
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    mHost->onUSBDeviceStateChanged (DevPtr);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                It++;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                PUSBDEVICE pFree = pDevices;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                pDevices = pDevices->pNext; /* treated as singly linked */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                freeDevice (pFree);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                /** @todo detect status changes! */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                if (iDiff > 0)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                     * Head of pDevices was attached.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                     */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    PUSBDEVICE pNew = pDevices;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    pDevices = pDevices->pNext;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    pNew->pPrev = pNew->pNext = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    HostUSBDevice *NewObj = new HostUSBDevice;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    NewObj->init (pNew, this);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    Log (("USBProxyService::processChanges: attached %p/%p:{.idVendor=%#06x, .idProduct=%#06x, .pszProduct=\"%s\", .pszManufacturer=\"%s\"}\n",
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                          NewObj, pNew, pNew->idVendor, pNew->idProduct,
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                          pNew->pszProduct, pNew->pszManufacturer));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    mDevices.insert (It, NewObj);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    mHost->onUSBDeviceAttached (NewObj);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                     * DevPtr was detached.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                     */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    It = mDevices.erase (It);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    mHost->onUSBDeviceDetached (DevPtr);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                    Log (("USBProxyService::processChanges: detached %p\n", (HostUSBDevice *)DevPtr)); /** @todo add details .*/
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan                }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        } /* while */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    else
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /* All devices were detached */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        HostUSBDeviceList::iterator It = this->mDevices.begin();
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        while (It != mDevices.end())
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            HostUSBDevice *DevPtr = *It;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan             * DevPtr was detached.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan             */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            It = mDevices.erase (It);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            mHost->onUSBDeviceDetached (DevPtr);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            Log (("USBProxyService::processChanges: detached %p\n", (HostUSBDevice *)DevPtr)); /** @todo add details .*/
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    LogFlowMember (("USBProxyService::processChanges: returns void\n"));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/*static*/ DECLCALLBACK (int) USBProxyService::serviceThread (RTTHREAD Thread, void *pvUser)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    USBProxyService *pThis = (USBProxyService *)pvUser;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    LogFlow (("USBProxyService::serviceThread: pThis=%p\n", pThis));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    /*
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan     * Processing loop.
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan     */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    for (;;)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pThis->wait (RT_INDEFINITE_WAIT);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        if (pThis->mTerminate)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            break;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pThis->processChanges();
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    LogFlow (("USBProxyService::serviceThread: returns VINF_SUCCESS\n"));
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return VINF_SUCCESS;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/*static*/ void USBProxyService::freeInterfaceMembers (PUSBINTERFACE pIf, unsigned cIfs)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    while (cIfs-- > 0)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        RTMemFree (pIf->paEndpoints);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pIf->paEndpoints = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        RTStrFree ((char *)pIf->pszDriver);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pIf->pszDriver = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        RTStrFree ((char *)pIf->pszInterface);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pIf->pszInterface = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        freeInterfaceMembers(pIf->paAlts, pIf->cAlts);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        RTMemFree(pIf->paAlts);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pIf->paAlts = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pIf->cAlts = 0;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /* next */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pIf++;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/*static*/ void USBProxyService::freeDevice (PUSBDEVICE pDevice)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    PUSBCONFIG pCfg = pDevice->paConfigurations;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    unsigned cCfgs = pDevice->bNumConfigurations;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    while (cCfgs-- > 0)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        freeInterfaceMembers (pCfg->paInterfaces, pCfg->bNumInterfaces);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        RTMemFree (pCfg->paInterfaces);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pCfg->paInterfaces = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pCfg->bNumInterfaces = 0;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        RTStrFree ((char *)pCfg->pszConfiguration);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pCfg->pszConfiguration = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        /* next */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pCfg++;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    RTMemFree (pDevice->paConfigurations);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    pDevice->paConfigurations = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    RTStrFree ((char *)pDevice->pszManufacturer);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    pDevice->pszManufacturer = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    RTStrFree ((char *)pDevice->pszProduct);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    pDevice->pszProduct = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    RTStrFree ((char *)pDevice->pszSerialNumber);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    pDevice->pszSerialNumber = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    RTStrFree ((char *)pDevice->pszAddress);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    pDevice->pszAddress = NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    RTMemFree (pDevice);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/* static */ uint64_t USBProxyService::calcSerialHash (const char *aSerial)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    if (!aSerial)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        aSerial = "";
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    register const uint8_t *pu8 = (const uint8_t *)aSerial;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    register uint64_t u64 = 14695981039346656037ULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    for (;;)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    {
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        register uint8_t u8 = *pu8;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        if (!u8)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan            break;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        u64 = (u64 * 1099511628211ULL) ^ u8;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan        pu8++;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    }
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return u64;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan/* Stubs which the host specific classes overrides: */
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanint USBProxyService::wait (unsigned aMillies)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return RTThreadSleep (250);
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanint USBProxyService::interruptWait (void)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return VERR_NOT_IMPLEMENTED;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki RajagopalanPUSBDEVICE USBProxyService::getDevices (void)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return NULL;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanint USBProxyService::captureDevice (HostUSBDevice *pDevice)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return VERR_NOT_IMPLEMENTED;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanint USBProxyService::holdDevice (HostUSBDevice *pDevice)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return VERR_NOT_IMPLEMENTED;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanint USBProxyService::releaseDevice (HostUSBDevice *pDevice)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return VERR_NOT_IMPLEMENTED;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalanint USBProxyService::resetDevice (HostUSBDevice *pDevice)
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan{
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan    return VERR_NOT_IMPLEMENTED;
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan}
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan
b494511a9cf72b1fc4eb13a0e593f55c624ab829Venki Rajagopalan