VirtualBox

source: vbox/trunk/src/VBox/Main/src-server/darwin/USBProxyBackendDarwin.cpp@ 98287

Last change on this file since 98287 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

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1/* $Id: USBProxyBackendDarwin.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * VirtualBox USB Proxy Service (in VBoxSVC), Darwin Specialization.
4 */
5
6/*
7 * Copyright (C) 2005-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * SPDX-License-Identifier: GPL-3.0-only
26 */
27
28
29/*********************************************************************************************************************************
30* Header Files *
31*********************************************************************************************************************************/
32#define LOG_GROUP LOG_GROUP_MAIN_USBPROXYBACKEND
33#include "USBProxyBackend.h"
34#include "LoggingNew.h"
35#include "iokit.h"
36
37#include <VBox/usb.h>
38#include <VBox/usblib.h>
39#include <iprt/errcore.h>
40
41#include <iprt/string.h>
42#include <iprt/alloc.h>
43#include <iprt/assert.h>
44#include <iprt/file.h>
45#include <iprt/errcore.h>
46#include <iprt/asm.h>
47
48
49/**
50 * Initialize data members.
51 */
52USBProxyBackendDarwin::USBProxyBackendDarwin()
53 : USBProxyBackend(), mServiceRunLoopRef(NULL), mNotifyOpaque(NULL), mWaitABitNextTime(false)
54{
55}
56
57USBProxyBackendDarwin::~USBProxyBackendDarwin()
58{
59}
60
61/**
62 * Initializes the object (called right after construction).
63 *
64 * @returns VBox status code.
65 */
66int USBProxyBackendDarwin::init(USBProxyService *pUsbProxyService, const com::Utf8Str &strId,
67 const com::Utf8Str &strAddress, bool fLoadingSettings)
68{
69 USBProxyBackend::init(pUsbProxyService, strId, strAddress, fLoadingSettings);
70
71 unconst(m_strBackend) = Utf8Str("host");
72
73 /*
74 * Start the poller thread.
75 */
76 start();
77 return VINF_SUCCESS;
78}
79
80
81/**
82 * Stop all service threads and free the device chain.
83 */
84void USBProxyBackendDarwin::uninit()
85{
86 LogFlowThisFunc(("\n"));
87
88 /*
89 * Stop the service.
90 */
91 if (isActive())
92 stop();
93
94 USBProxyBackend::uninit();
95}
96
97
98int USBProxyBackendDarwin::captureDevice(HostUSBDevice *aDevice)
99{
100 /*
101 * Check preconditions.
102 */
103 AssertReturn(aDevice, VERR_GENERAL_FAILURE);
104 AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
105
106 AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
107 LogFlowThisFunc(("aDevice=%s\n", aDevice->i_getName().c_str()));
108
109 Assert(aDevice->i_getUnistate() == kHostUSBDeviceState_Capturing);
110
111 devLock.release();
112 interruptWait();
113 return VINF_SUCCESS;
114}
115
116
117int USBProxyBackendDarwin::releaseDevice(HostUSBDevice *aDevice)
118{
119 /*
120 * Check preconditions.
121 */
122 AssertReturn(aDevice, VERR_GENERAL_FAILURE);
123 AssertReturn(!aDevice->isWriteLockOnCurrentThread(), VERR_GENERAL_FAILURE);
124
125 AutoReadLock devLock(aDevice COMMA_LOCKVAL_SRC_POS);
126 LogFlowThisFunc(("aDevice=%s\n", aDevice->i_getName().c_str()));
127
128 Assert(aDevice->i_getUnistate() == kHostUSBDeviceState_ReleasingToHost);
129
130 devLock.release();
131 interruptWait();
132 return VINF_SUCCESS;
133}
134
135
136bool USBProxyBackendDarwin::isFakeUpdateRequired()
137{
138 return true;
139}
140
141
142int USBProxyBackendDarwin::wait(RTMSINTERVAL aMillies)
143{
144 SInt32 rc = CFRunLoopRunInMode(CFSTR(VBOX_IOKIT_MODE_STRING),
145 mWaitABitNextTime && aMillies >= 1000
146 ? 1.0 /* seconds */
147 : aMillies >= 5000 /* Temporary measure to poll for status changes (MSD). */
148 ? 5.0 /* seconds */
149 : aMillies / 1000.0,
150 true);
151 mWaitABitNextTime = rc != kCFRunLoopRunTimedOut;
152
153 return VINF_SUCCESS;
154}
155
156
157int USBProxyBackendDarwin::interruptWait(void)
158{
159 if (mServiceRunLoopRef)
160 CFRunLoopStop(mServiceRunLoopRef);
161 return 0;
162}
163
164
165PUSBDEVICE USBProxyBackendDarwin::getDevices(void)
166{
167 /* call iokit.cpp */
168 return DarwinGetUSBDevices();
169}
170
171
172void USBProxyBackendDarwin::serviceThreadInit(void)
173{
174 mServiceRunLoopRef = CFRunLoopGetCurrent();
175 mNotifyOpaque = DarwinSubscribeUSBNotifications();
176}
177
178
179void USBProxyBackendDarwin::serviceThreadTerm(void)
180{
181 DarwinUnsubscribeUSBNotifications(mNotifyOpaque);
182 mServiceRunLoopRef = NULL;
183}
184
185
186/**
187 * Wrapper called from iokit.cpp.
188 *
189 * @param pCur The USB device to free.
190 */
191void DarwinFreeUSBDeviceFromIOKit(PUSBDEVICE pCur)
192{
193 USBProxyBackend::freeDevice(pCur);
194}
195
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