VirtualBox

source: vbox/trunk/src/VBox/Main/glue/com.cpp@ 102493

Last change on this file since 102493 was 98297, checked in by vboxsync, 23 months ago

Main: rc -> hrc/vrc for all but testcases. Enabled scm rc checks accordingly. bugref:10223

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  • Property svn:keywords set to Author Date Id Revision
File size: 6.1 KB
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1/* $Id: com.cpp 98297 2023-01-25 01:59:25Z vboxsync $ */
2/** @file
3 * MS COM / XPCOM Abstraction Layer
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
33#if !defined(VBOX_WITH_XPCOM)
34
35# include <iprt/win/objbase.h>
36
37#else /* !defined (VBOX_WITH_XPCOM) */
38# include <stdlib.h>
39# include <nsCOMPtr.h>
40# include <nsIServiceManagerUtils.h>
41# include <nsIComponentManager.h>
42# include <ipcIService.h>
43# include <ipcCID.h>
44# include <ipcIDConnectService.h>
45# include <nsIInterfaceInfo.h>
46# include <nsIInterfaceInfoManager.h>
47# define IPC_DCONNECTSERVICE_CONTRACTID "@mozilla.org/ipc/dconnect-service;1" // official XPCOM headers don't define it yet
48#endif /* !defined (VBOX_WITH_XPCOM) */
49
50#include "VBox/com/com.h"
51#include "VBox/com/assert.h"
52
53#include "VBox/com/Guid.h"
54#include "VBox/com/array.h"
55
56#include <iprt/string.h>
57
58#include <iprt/errcore.h>
59#include <VBox/log.h>
60
61
62/*********************************************************************************************************************************
63* Global Variables *
64*********************************************************************************************************************************/
65namespace com
66{
67/* static */
68const Guid Guid::Empty; /* default ctor is OK */
69
70const char Zeroes[16] = {0, };
71
72
73void GetInterfaceNameByIID(const GUID &aIID, BSTR *aName)
74{
75 AssertPtrReturnVoid(aName);
76 *aName = NULL;
77
78#if !defined(VBOX_WITH_XPCOM)
79
80 LPOLESTR iidStr = NULL;
81 if (StringFromIID(aIID, &iidStr) == S_OK)
82 {
83 HKEY ifaceKey;
84 LSTATUS lrc = RegOpenKeyExW(HKEY_CLASSES_ROOT, L"Interface", 0, KEY_QUERY_VALUE, &ifaceKey);
85 if (lrc == ERROR_SUCCESS)
86 {
87 HKEY iidKey;
88 lrc = RegOpenKeyExW(ifaceKey, iidStr, 0, KEY_QUERY_VALUE, &iidKey);
89 if (lrc == ERROR_SUCCESS)
90 {
91 /* determine the size and type */
92 DWORD sz, type;
93 lrc = RegQueryValueExW(iidKey, NULL, NULL, &type, NULL, &sz);
94 if (lrc == ERROR_SUCCESS && type == REG_SZ)
95 {
96 /* query the value to BSTR */
97 *aName = SysAllocStringLen(NULL, (sz + 1) / sizeof(TCHAR) + 1);
98 lrc = RegQueryValueExW(iidKey, NULL, NULL, NULL, (LPBYTE) *aName, &sz);
99 if (lrc != ERROR_SUCCESS)
100 {
101 SysFreeString(*aName);
102 *aName = NULL;
103 }
104 }
105 RegCloseKey(iidKey);
106 }
107 RegCloseKey(ifaceKey);
108 }
109 CoTaskMemFree(iidStr);
110 }
111
112#else /* !defined (VBOX_WITH_XPCOM) */
113
114 nsresult rv;
115 nsCOMPtr<nsIInterfaceInfoManager> iim =
116 do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID, &rv);
117 if (NS_SUCCEEDED(rv))
118 {
119 nsCOMPtr<nsIInterfaceInfo> iinfo;
120 rv = iim->GetInfoForIID(&aIID, getter_AddRefs(iinfo));
121 if (NS_SUCCEEDED(rv))
122 {
123 const char *iname = NULL;
124 iinfo->GetNameShared(&iname);
125 char *utf8IName = NULL;
126 if (RT_SUCCESS(RTStrCurrentCPToUtf8(&utf8IName, iname)))
127 {
128 PRTUTF16 utf16IName = NULL;
129 if (RT_SUCCESS(RTStrToUtf16(utf8IName, &utf16IName)))
130 {
131 *aName = SysAllocString((OLECHAR *) utf16IName);
132 RTUtf16Free(utf16IName);
133 }
134 RTStrFree(utf8IName);
135 }
136 }
137 }
138
139#endif /* !defined (VBOX_WITH_XPCOM) */
140}
141
142#ifdef VBOX_WITH_XPCOM
143
144HRESULT GlueCreateObjectOnServer(const CLSID &clsid,
145 const char *serverName,
146 const nsIID &id,
147 void** ppobj)
148{
149 HRESULT hrc = E_UNEXPECTED;
150 nsCOMPtr<ipcIService> ipcServ = do_GetService(IPC_SERVICE_CONTRACTID, &hrc);
151 if (SUCCEEDED(hrc))
152 {
153 PRUint32 serverID = 0;
154 hrc = ipcServ->ResolveClientName(serverName, &serverID);
155 if (SUCCEEDED (hrc))
156 {
157 nsCOMPtr<ipcIDConnectService> dconServ = do_GetService(IPC_DCONNECTSERVICE_CONTRACTID, &hrc);
158 if (SUCCEEDED(hrc))
159 hrc = dconServ->CreateInstance(serverID,
160 clsid,
161 id,
162 ppobj);
163 }
164 }
165 return hrc;
166}
167
168HRESULT GlueCreateInstance(const CLSID &clsid,
169 const nsIID &id,
170 void** ppobj)
171{
172 nsCOMPtr<nsIComponentManager> manager;
173 HRESULT hrc = NS_GetComponentManager(getter_AddRefs(manager));
174 if (SUCCEEDED(hrc))
175 hrc = manager->CreateInstance(clsid,
176 nsnull,
177 id,
178 ppobj);
179 return hrc;
180}
181
182#endif // VBOX_WITH_XPCOM
183
184} /* namespace com */
185
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