VirtualBox

source: vbox/trunk/src/VBox/Main/src-server/MediumFormatImpl.cpp@ 48311

Last change on this file since 48311 was 45584, checked in by vboxsync, 12 years ago

Main/MediumFormat: fix regression in the rewrite which was part of the API wrapper generator introduction

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File size: 8.4 KB
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1/* $Id: MediumFormatImpl.cpp 45584 2013-04-17 09:47:57Z vboxsync $ */
2/** @file
3 *
4 * MediumFormat COM class implementation
5 */
6
7/*
8 * Copyright (C) 2008-2013 Oracle Corporation
9 *
10 * This file is part of VirtualBox Open Source Edition (OSE), as
11 * available from http://www.virtualbox.org. This file is free software;
12 * you can redistribute it and/or modify it under the terms of the GNU
13 * General Public License (GPL) as published by the Free Software
14 * Foundation, in version 2 as it comes in the "COPYING" file of the
15 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17 */
18
19#include "MediumFormatImpl.h"
20#include "AutoCaller.h"
21#include "Logging.h"
22
23#include <VBox/vd.h>
24
25#include <iprt/cpp/utils.h>
26
27// constructor / destructor
28/////////////////////////////////////////////////////////////////////////////
29
30DEFINE_EMPTY_CTOR_DTOR(MediumFormat)
31
32HRESULT MediumFormat::FinalConstruct()
33{
34 return BaseFinalConstruct();
35}
36
37void MediumFormat::FinalRelease()
38{
39 uninit();
40
41 BaseFinalRelease();
42}
43
44// public initializer/uninitializer for internal purposes only
45/////////////////////////////////////////////////////////////////////////////
46
47/**
48 * Initializes the hard disk format object.
49 *
50 * @param aVDInfo Pointer to a backend info object.
51 */
52HRESULT MediumFormat::init(const VDBACKENDINFO *aVDInfo)
53{
54 LogFlowThisFunc(("aVDInfo=%p\n", aVDInfo));
55
56 ComAssertRet(aVDInfo, E_INVALIDARG);
57
58 /* Enclose the state transition NotReady->InInit->Ready */
59 AutoInitSpan autoInitSpan(this);
60 AssertReturn(autoInitSpan.isOk(), E_FAIL);
61
62 /* The ID of the backend */
63 unconst(m.strId) = aVDInfo->pszBackend;
64 /* The Name of the backend */
65 /* Use id for now as long as VDBACKENDINFO hasn't any extra
66 * name/description field. */
67 unconst(m.strName) = aVDInfo->pszBackend;
68 /* The capabilities of the backend. Assumes 1:1 mapping! */
69 unconst(m.capabilities) = (MediumFormatCapabilities_T)aVDInfo->uBackendCaps;
70 /* Save the supported file extensions in a list */
71 if (aVDInfo->paFileExtensions)
72 {
73 PCVDFILEEXTENSION papExtension = aVDInfo->paFileExtensions;
74 while (papExtension->pszExtension != NULL)
75 {
76 DeviceType_T devType;
77
78 unconst(m.maFileExtensions).push_back(papExtension->pszExtension);
79
80 switch(papExtension->enmType)
81 {
82 case VDTYPE_HDD:
83 devType = DeviceType_HardDisk;
84 break;
85 case VDTYPE_DVD:
86 devType = DeviceType_DVD;
87 break;
88 case VDTYPE_FLOPPY:
89 devType = DeviceType_Floppy;
90 break;
91 default:
92 AssertMsgFailed(("Invalid enm type %d!\n", papExtension->enmType));
93 return E_INVALIDARG;
94 }
95
96 unconst(m.maDeviceTypes).push_back(devType);
97 ++papExtension;
98 }
99 }
100 /* Save a list of configure properties */
101 if (aVDInfo->paConfigInfo)
102 {
103 PCVDCONFIGINFO pa = aVDInfo->paConfigInfo;
104 /* Walk through all available keys */
105 while (pa->pszKey != NULL)
106 {
107 Utf8Str defaultValue("");
108 DataType_T dt;
109 ULONG flags = static_cast <ULONG>(pa->uKeyFlags);
110 /* Check for the configure data type */
111 switch (pa->enmValueType)
112 {
113 case VDCFGVALUETYPE_INTEGER:
114 {
115 dt = DataType_Int32;
116 /* If there is a default value get them in the right format */
117 if (pa->pszDefaultValue)
118 defaultValue = pa->pszDefaultValue;
119 break;
120 }
121 case VDCFGVALUETYPE_BYTES:
122 {
123 dt = DataType_Int8;
124 /* If there is a default value get them in the right format */
125 if (pa->pszDefaultValue)
126 {
127 /* Copy the bytes over - treated simply as a string */
128 defaultValue = pa->pszDefaultValue;
129 flags |= DataFlags_Array;
130 }
131 break;
132 }
133 case VDCFGVALUETYPE_STRING:
134 {
135 dt = DataType_String;
136 /* If there is a default value get them in the right format */
137 if (pa->pszDefaultValue)
138 defaultValue = pa->pszDefaultValue;
139 break;
140 }
141
142 default:
143 AssertMsgFailed(("Invalid enm type %d!\n", pa->enmValueType));
144 return E_INVALIDARG;
145 }
146
147 /// @todo add extendedFlags to Property when we reach the 32 bit
148 /// limit (or make the argument ULONG64 after checking that COM is
149 /// capable of defining enums (used to represent bit flags) that
150 /// contain 64-bit values)
151 ComAssertRet(pa->uKeyFlags == ((ULONG)pa->uKeyFlags), E_FAIL);
152
153 /* Create one property structure */
154 const Property prop = { Utf8Str(pa->pszKey),
155 Utf8Str(""),
156 dt,
157 flags,
158 defaultValue };
159 unconst(m.maProperties).push_back(prop);
160 ++pa;
161 }
162 }
163
164 /* Confirm a successful initialization */
165 autoInitSpan.setSucceeded();
166
167 return S_OK;
168}
169
170/**
171 * Uninitializes the instance and sets the ready flag to FALSE.
172 * Called either from FinalRelease() or by the parent when it gets destroyed.
173 */
174void MediumFormat::uninit()
175{
176 LogFlowThisFunc(("\n"));
177
178 /* Enclose the state transition Ready->InUninit->NotReady */
179 AutoUninitSpan autoUninitSpan(this);
180 if (autoUninitSpan.uninitDone())
181 return;
182
183 unconst(m.maProperties).clear();
184 unconst(m.maFileExtensions).clear();
185 unconst(m.maDeviceTypes).clear();
186 unconst(m.capabilities) = (MediumFormatCapabilities_T)0;
187 unconst(m.strName).setNull();
188 unconst(m.strId).setNull();
189}
190
191// IMediumFormat properties
192/////////////////////////////////////////////////////////////////////////////
193
194HRESULT MediumFormat::getId(com::Utf8Str &aId)
195{
196 /* this is const, no need to lock */
197 aId = m.strId;
198
199 return S_OK;
200}
201
202HRESULT MediumFormat::getName(com::Utf8Str &aName)
203{
204 /* this is const, no need to lock */
205 aName = m.strName;
206
207 return S_OK;
208}
209
210HRESULT MediumFormat::getCapabilities(std::vector<MediumFormatCapabilities_T> &aCapabilities)
211{
212 /* m.capabilities is const, no need to lock */
213
214 aCapabilities.resize(sizeof(MediumFormatCapabilities_T) * 8);
215 size_t cCapabilities = 0;
216 for (size_t i = 0; i < aCapabilities.size(); i++)
217 {
218 uint64_t tmp = m.capabilities;
219 tmp &= 1ULL << i;
220 if (tmp)
221 aCapabilities[cCapabilities++] = (MediumFormatCapabilities_T)tmp;
222 }
223 aCapabilities.resize(RT_MAX(cCapabilities, 1));
224
225 return S_OK;
226}
227
228// IMediumFormat methods
229/////////////////////////////////////////////////////////////////////////////
230
231HRESULT MediumFormat::describeFileExtensions(std::vector<com::Utf8Str> &aExtensions,
232 std::vector<DeviceType_T> &aTypes)
233{
234 /* this is const, no need to lock */
235 aExtensions = m.maFileExtensions;
236 aTypes = m.maDeviceTypes;
237
238 return S_OK;
239}
240
241HRESULT MediumFormat::describeProperties(std::vector<com::Utf8Str> &aNames,
242 std::vector<com::Utf8Str> &aDescriptions,
243 std::vector<DataType_T> &aTypes,
244 std::vector<ULONG> &aFlags,
245 std::vector<com::Utf8Str> &aDefaults)
246{
247 /* this is const, no need to lock */
248 size_t c = m.maProperties.size();
249 aNames.resize(c);
250 aDescriptions.resize(c);
251 aTypes.resize(c);
252 aFlags.resize(c);
253 aDefaults.resize(c);
254 for (size_t i = 0; i < c; i++)
255 {
256 const Property &prop = m.maProperties[i];
257 aNames[i] = prop.strName;
258 aDescriptions[i] = prop.strDescription;
259 aTypes[i] = prop.type;
260 aFlags[i] = prop.flags;
261 aDefaults[i] = prop.strDefaultValue;
262 }
263
264 return S_OK;
265}
266
267// public methods only for internal purposes
268/////////////////////////////////////////////////////////////////////////////
269/* vi: set tabstop=4 shiftwidth=4 expandtab: */
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