| /* |
| * QEMU Guest Agent win32 VSS common declarations |
| * |
| * Copyright Hitachi Data Systems Corp. 2013 |
| * |
| * Authors: |
| * Tomoki Sekiyama <tomoki.sekiyama@hds.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| * See the COPYING file in the top-level directory. |
| */ |
| |
| #ifndef VSS_COMMON_H |
| #define VSS_COMMON_H |
| |
| #define __MIDL_user_allocate_free_DEFINED__ |
| #include <windows.h> |
| #include <shlwapi.h> |
| |
| /* Reduce warnings to include vss.h */ |
| |
| /* Ignore annotations for MS IDE */ |
| #define __in IN |
| #define __out OUT |
| #define __RPC_unique_pointer |
| #define __RPC_string |
| #define __RPC__deref_inout_opt |
| #define __RPC__out |
| #ifndef __RPC__out_ecount_part |
| #define __RPC__out_ecount_part(x, y) |
| #endif |
| #define _declspec(x) |
| #undef uuid |
| #define uuid(x) |
| |
| /* Undef some duplicated error codes redefined in vss.h */ |
| #undef VSS_E_BAD_STATE |
| #undef VSS_E_PROVIDER_NOT_REGISTERED |
| #undef VSS_E_PROVIDER_VETO |
| #undef VSS_E_OBJECT_NOT_FOUND |
| #undef VSS_E_VOLUME_NOT_SUPPORTED |
| #undef VSS_E_VOLUME_NOT_SUPPORTED_BY_PROVIDER |
| #undef VSS_E_OBJECT_ALREADY_EXISTS |
| #undef VSS_E_UNEXPECTED_PROVIDER_ERROR |
| #undef VSS_E_INVALID_XML_DOCUMENT |
| #undef VSS_E_MAXIMUM_NUMBER_OF_VOLUMES_REACHED |
| #undef VSS_E_MAXIMUM_NUMBER_OF_SNAPSHOTS_REACHED |
| |
| #include <vss.h> |
| #include "vss-handles.h" |
| |
| /* Macros to convert char definitions to wchar */ |
| #define _L(a) L##a |
| #define L(a) _L(a) |
| |
| const GUID g_gProviderId = { 0x3629d4ed, 0xee09, 0x4e0e, |
| {0x9a, 0x5c, 0x6d, 0x8b, 0xa2, 0x87, 0x2a, 0xef} }; |
| const GUID g_gProviderVersion = { 0x11ef8b15, 0xcac6, 0x40d6, |
| {0x8d, 0x5c, 0x8f, 0xfc, 0x16, 0x3f, 0x24, 0xca} }; |
| |
| const CLSID CLSID_QGAVSSProvider = { 0x6e6a3492, 0x8d4d, 0x440c, |
| {0x96, 0x19, 0x5e, 0x5d, 0x0c, 0xc3, 0x1c, 0xa8} }; |
| |
| const TCHAR g_szClsid[] = TEXT("{6E6A3492-8D4D-440C-9619-5E5D0CC31CA8}"); |
| const TCHAR g_szProgid[] = TEXT("QGAVSSProvider"); |
| |
| /* Enums undefined in VSS SDK 7.2 but defined in newer Windows SDK */ |
| enum __VSS_VOLUME_SNAPSHOT_ATTRIBUTES { |
| VSS_VOLSNAP_ATTR_NO_AUTORECOVERY = 0x00000002, |
| VSS_VOLSNAP_ATTR_TXF_RECOVERY = 0x02000000 |
| }; |
| |
| |
| /* COM pointer utility; call ->Release() when it goes out of scope */ |
| template <class T> |
| class COMPointer { |
| COMPointer(const COMPointer<T> &p) { } /* no copy */ |
| T *p; |
| public: |
| COMPointer &operator=(T *new_p) |
| { |
| /* Assignment of a new T* (or NULL) causes release of previous p */ |
| if (p && p != new_p) { |
| p->Release(); |
| } |
| p = new_p; |
| return *this; |
| } |
| /* Replace by assignment to the pointer of p */ |
| T **replace(void) |
| { |
| *this = NULL; |
| return &p; |
| } |
| /* Make COMPointer be used like T* */ |
| operator T*() { return p; } |
| T *operator->(void) { return p; } |
| T &operator*(void) { return *p; } |
| operator bool() { return !!p; } |
| |
| COMPointer(T *p = NULL) : p(p) { } |
| ~COMPointer() { *this = NULL; } /* Automatic release */ |
| }; |
| |
| /* |
| * COM initializer; this should declared before COMPointer to uninitialize COM |
| * after releasing COM objects. |
| */ |
| class COMInitializer { |
| public: |
| COMInitializer() { CoInitialize(NULL); } |
| ~COMInitializer() { CoUninitialize(); } |
| }; |
| |
| #endif |