VirtualBox

source: vbox/trunk/src/VBox/Main/HostPower.cpp@ 22432

Last change on this file since 22432 was 21878, checked in by vboxsync, 15 years ago

Main: coding style: have Main obey the standard VirtualBox coding style rules (no functional changes)

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 5.4 KB
Line 
1/** @file
2 *
3 * VirtualBox interface to host's power notification service
4 */
5
6/*
7 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18 * Clara, CA 95054 USA or visit http://www.sun.com if you need
19 * additional information or have any questions.
20 */
21
22
23/*******************************************************************************
24* Header Files *
25*******************************************************************************/
26
27#include "HostPower.h"
28#include "Logging.h"
29
30#include <VBox/com/ptr.h>
31
32#include <iprt/mem.h>
33
34HostPowerService::HostPowerService (VirtualBox *aVirtualBox)
35{
36 Assert (aVirtualBox != NULL);
37 mVirtualBox = aVirtualBox;
38}
39
40HostPowerService::~HostPowerService()
41{
42}
43
44void HostPowerService::notify (HostPowerEvent aEvent)
45{
46 VirtualBox::SessionMachineVector machines;
47 VirtualBox::InternalControlVector controls;
48
49 HRESULT rc = S_OK;
50
51 switch (aEvent)
52 {
53 case HostPowerEvent_Suspend:
54 {
55 LogFunc (("SUSPEND\n"));
56
57#ifdef VBOX_WITH_RESOURCE_USAGE_API
58 /* Suspend performance sampling to avoid unnecessary callbacks due to jumps in time. */
59 PerformanceCollector *perfcollector = mVirtualBox->performanceCollector();
60
61 if (perfcollector)
62 perfcollector->suspendSampling();
63#endif
64 mVirtualBox->getOpenedMachinesAndControls (machines, controls);
65
66 /* pause running VMs */
67 for (size_t i = 0; i < controls.size(); ++ i)
68 {
69 /* get the remote console */
70 ComPtr<IConsole> console;
71 rc = controls [i]->GetRemoteConsole (console.asOutParam());
72 /* the VM could have been powered down and closed or whatever */
73 if (FAILED (rc))
74 continue;
75
76 /* note that Pause() will simply return a failure if the VM is
77 * in an inappropriate state */
78 rc = console->Pause();
79 if (FAILED (rc))
80 continue;
81
82 /* save the control to un-pause the VM later */
83 mConsoles.push_back (console);
84 }
85
86 LogFunc (("Suspended %d VMs\n", mConsoles.size()));
87
88 break;
89 }
90
91 case HostPowerEvent_Resume:
92 {
93 LogFunc (("RESUME\n"));
94
95 size_t resumed = 0;
96
97 /* go through VMs we paused on Suspend */
98 for (size_t i = 0; i < mConsoles.size(); ++ i)
99 {
100 /* note that Resume() will simply return a failure if the VM is
101 * in an inappropriate state (it will also fail if the VM has
102 * been somehow closed by this time already so that the
103 * console reference we have is dead) */
104 rc = mConsoles [i]->Resume();
105 if (FAILED (rc))
106 continue;
107
108 ++ resumed;
109 }
110
111 LogFunc (("Resumed %d VMs\n", resumed));
112
113#ifdef VBOX_WITH_RESOURCE_USAGE_API
114 /* Resume the performance sampling. */
115 PerformanceCollector *perfcollector = mVirtualBox->performanceCollector();
116
117 if (perfcollector)
118 perfcollector->resumeSampling();
119#endif
120
121 mConsoles.clear();
122
123 break;
124 }
125
126 case HostPowerEvent_BatteryLow:
127 {
128 LogFunc (("BATTERY LOW\n"));
129
130 mVirtualBox->getOpenedMachinesAndControls (machines, controls);
131
132 size_t saved = 0;
133
134 /* save running VMs */
135 for (size_t i = 0; i < controls.size(); ++ i)
136 {
137 /* get the remote console */
138 ComPtr<IConsole> console;
139 rc = controls [i]->GetRemoteConsole (console.asOutParam());
140 /* the VM could have been powered down and closed or whatever */
141 if (FAILED (rc))
142 continue;
143
144 ComPtr<IProgress> progress;
145
146 /* note that SaveState() will simply return a failure if the VM
147 * is in an inappropriate state */
148 rc = console->SaveState (progress.asOutParam());
149 if (FAILED (rc))
150 continue;
151
152 /* Wait until the operation has been completed. */
153 LONG iRc;
154 rc = progress->WaitForCompletion(-1);
155 if (SUCCEEDED(rc))
156 progress->COMGETTER(ResultCode) (&iRc);
157 rc = iRc;
158
159 AssertMsg (SUCCEEDED(rc), ("SaveState WaitForCompletion "
160 "failed with %Rhrc (%#08X)\n", rc, rc));
161
162 if (SUCCEEDED(rc))
163 ++ saved;
164 }
165
166 LogFunc (("Saved %d VMs\n", saved));
167
168 break;
169 }
170 }
171}
172/* vi: set tabstop=4 shiftwidth=4 expandtab: */
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette