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/* $Id: USBProxyBackendDarwin.cpp $ */
/** @file
* VirtualBox USB Proxy Service (in VBoxSVC), Darwin Specialization.
*/
/*
* Copyright (C) 2005-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP LOG_GROUP_MAIN_USBPROXYBACKEND
#include "USBProxyBackend.h"
#include "LoggingNew.h"
#include "iokit.h"
#include <VBox/usb.h>
#include <VBox/usblib.h>
#include <iprt/errcore.h>
#include <iprt/string.h>
#include <iprt/alloc.h>
#include <iprt/assert.h>
#include <iprt/file.h>
#include <iprt/errcore.h>
#include <iprt/asm.h>
/**
* Initialize data members.
*/
USBProxyBackendDarwin::USBProxyBackendDarwin()
: USBProxyBackend(), mServiceRunLoopRef(NULL), mNotifyOpaque(NULL), mWaitABitNextTime(false)
{
}
USBProxyBackendDarwin::~USBProxyBackendDarwin()
{
}
/**
* Initializes the object (called right after construction).
*
* @returns VBox status code.
*/
int USBProxyBackendDarwin::init(USBProxyService *pUsbProxyService, const com::Utf8Str &strId,
const com::Utf8Str &strAddress, bool fLoadingSettings)
{
USBProxyBackend::init(pUsbProxyService, strId, strAddress, fLoadingSettings);
unconst(m_strBackend) = Utf8Str("host");
/*
* Start the poller thread.
*/
start();
return VINF_SUCCESS;
}
/**
* Stop all service threads and free the device chain.
*/
void USBProxyBackendDarwin::uninit()
{
LogFlowThisFunc(("\n"));
/*
* Stop the service.
*/
if (isActive())
stop();
USBProxyBackend::uninit();
}
int USBProxyBackendDarwin::captureDevice(HostUSBDevice *aDevice)
{
/*
* Check preconditions.
*/
AssertReturn(aDevice, VERR_GENERAL_FAILURE);
AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
LogFlowThisFunc(("aDevice=%s\n", aDevice->i_getName().c_str()));
Assert(aDevice->i_getUnistate() == kHostUSBDeviceState_Capturing);
devLock.release();
interruptWait();
return VINF_SUCCESS;
}
int USBProxyBackendDarwin::releaseDevice(HostUSBDevice *aDevice)
{
/*
* Check preconditions.
*/
AssertReturn(aDevice, VERR_GENERAL_FAILURE);
AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
LogFlowThisFunc(("aDevice=%s\n", aDevice->i_getName().c_str()));
Assert(aDevice->i_getUnistate() == kHostUSBDeviceState_ReleasingToHost);
devLock.release();
interruptWait();
return VINF_SUCCESS;
}
bool USBProxyBackendDarwin::isFakeUpdateRequired()
{
return true;
}
int USBProxyBackendDarwin::wait(RTMSINTERVAL aMillies)
{
SInt32 rc = CFRunLoopRunInMode(CFSTR(VBOX_IOKIT_MODE_STRING),
mWaitABitNextTime && aMillies >= 1000
? 1.0 /* seconds */
: aMillies >= 5000 /* Temporary measure to poll for status changes (MSD). */
? 5.0 /* seconds */
: aMillies / 1000.0,
true);
mWaitABitNextTime = rc != kCFRunLoopRunTimedOut;
return VINF_SUCCESS;
}
int USBProxyBackendDarwin::interruptWait(void)
{
if (mServiceRunLoopRef)
CFRunLoopStop(mServiceRunLoopRef);
return 0;
}
PUSBDEVICE USBProxyBackendDarwin::getDevices(void)
{
/* call iokit.cpp */
return DarwinGetUSBDevices();
}
void USBProxyBackendDarwin::serviceThreadInit(void)
{
mServiceRunLoopRef = CFRunLoopGetCurrent();
mNotifyOpaque = DarwinSubscribeUSBNotifications();
}
void USBProxyBackendDarwin::serviceThreadTerm(void)
{
DarwinUnsubscribeUSBNotifications(mNotifyOpaque);
mServiceRunLoopRef = NULL;
}
/**
* Wrapper called from iokit.cpp.
*
* @param pCur The USB device to free.
*/
void DarwinFreeUSBDeviceFromIOKit(PUSBDEVICE pCur)
{
USBProxyBackend::freeDevice(pCur);
}
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