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Diffstat (limited to 'src/VBox/Main/glue/com.cpp')
| -rw-r--r-- | src/VBox/Main/glue/com.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/VBox/Main/glue/com.cpp b/src/VBox/Main/glue/com.cpp new file mode 100644 index 00000000..25f0a49f --- /dev/null +++ b/src/VBox/Main/glue/com.cpp @@ -0,0 +1,185 @@ +/* $Id: com.cpp $ */ +/** @file + * MS COM / XPCOM Abstraction Layer + */ + +/* + * 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 +#if !defined(VBOX_WITH_XPCOM) + +# include <iprt/win/objbase.h> + +#else /* !defined (VBOX_WITH_XPCOM) */ +# include <stdlib.h> +# include <nsCOMPtr.h> +# include <nsIServiceManagerUtils.h> +# include <nsIComponentManager.h> +# include <ipcIService.h> +# include <ipcCID.h> +# include <ipcIDConnectService.h> +# include <nsIInterfaceInfo.h> +# include <nsIInterfaceInfoManager.h> +# define IPC_DCONNECTSERVICE_CONTRACTID "@mozilla.org/ipc/dconnect-service;1" // official XPCOM headers don't define it yet +#endif /* !defined (VBOX_WITH_XPCOM) */ + +#include "VBox/com/com.h" +#include "VBox/com/assert.h" + +#include "VBox/com/Guid.h" +#include "VBox/com/array.h" + +#include <iprt/string.h> + +#include <iprt/errcore.h> +#include <VBox/log.h> + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +namespace com +{ +/* static */ +const Guid Guid::Empty; /* default ctor is OK */ + +const char Zeroes[16] = {0, }; + + +void GetInterfaceNameByIID(const GUID &aIID, BSTR *aName) +{ + AssertPtrReturnVoid(aName); + *aName = NULL; + +#if !defined(VBOX_WITH_XPCOM) + + LPOLESTR iidStr = NULL; + if (StringFromIID(aIID, &iidStr) == S_OK) + { + HKEY ifaceKey; + LSTATUS lrc = RegOpenKeyExW(HKEY_CLASSES_ROOT, L"Interface", 0, KEY_QUERY_VALUE, &ifaceKey); + if (lrc == ERROR_SUCCESS) + { + HKEY iidKey; + lrc = RegOpenKeyExW(ifaceKey, iidStr, 0, KEY_QUERY_VALUE, &iidKey); + if (lrc == ERROR_SUCCESS) + { + /* determine the size and type */ + DWORD sz, type; + lrc = RegQueryValueExW(iidKey, NULL, NULL, &type, NULL, &sz); + if (lrc == ERROR_SUCCESS && type == REG_SZ) + { + /* query the value to BSTR */ + *aName = SysAllocStringLen(NULL, (sz + 1) / sizeof(TCHAR) + 1); + lrc = RegQueryValueExW(iidKey, NULL, NULL, NULL, (LPBYTE) *aName, &sz); + if (lrc != ERROR_SUCCESS) + { + SysFreeString(*aName); + *aName = NULL; + } + } + RegCloseKey(iidKey); + } + RegCloseKey(ifaceKey); + } + CoTaskMemFree(iidStr); + } + +#else /* !defined (VBOX_WITH_XPCOM) */ + + nsresult rv; + nsCOMPtr<nsIInterfaceInfoManager> iim = + do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID, &rv); + if (NS_SUCCEEDED(rv)) + { + nsCOMPtr<nsIInterfaceInfo> iinfo; + rv = iim->GetInfoForIID(&aIID, getter_AddRefs(iinfo)); + if (NS_SUCCEEDED(rv)) + { + const char *iname = NULL; + iinfo->GetNameShared(&iname); + char *utf8IName = NULL; + if (RT_SUCCESS(RTStrCurrentCPToUtf8(&utf8IName, iname))) + { + PRTUTF16 utf16IName = NULL; + if (RT_SUCCESS(RTStrToUtf16(utf8IName, &utf16IName))) + { + *aName = SysAllocString((OLECHAR *) utf16IName); + RTUtf16Free(utf16IName); + } + RTStrFree(utf8IName); + } + } + } + +#endif /* !defined (VBOX_WITH_XPCOM) */ +} + +#ifdef VBOX_WITH_XPCOM + +HRESULT GlueCreateObjectOnServer(const CLSID &clsid, + const char *serverName, + const nsIID &id, + void** ppobj) +{ + HRESULT hrc = E_UNEXPECTED; + nsCOMPtr<ipcIService> ipcServ = do_GetService(IPC_SERVICE_CONTRACTID, &hrc); + if (SUCCEEDED(hrc)) + { + PRUint32 serverID = 0; + hrc = ipcServ->ResolveClientName(serverName, &serverID); + if (SUCCEEDED (hrc)) + { + nsCOMPtr<ipcIDConnectService> dconServ = do_GetService(IPC_DCONNECTSERVICE_CONTRACTID, &hrc); + if (SUCCEEDED(hrc)) + hrc = dconServ->CreateInstance(serverID, + clsid, + id, + ppobj); + } + } + return hrc; +} + +HRESULT GlueCreateInstance(const CLSID &clsid, + const nsIID &id, + void** ppobj) +{ + nsCOMPtr<nsIComponentManager> manager; + HRESULT hrc = NS_GetComponentManager(getter_AddRefs(manager)); + if (SUCCEEDED(hrc)) + hrc = manager->CreateInstance(clsid, + nsnull, + id, + ppobj); + return hrc; +} + +#endif // VBOX_WITH_XPCOM + +} /* namespace com */ + |