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b39297ae TS |
1 | /* |
2 | * QEMU Guest Agent win32 VSS common declarations | |
3 | * | |
4 | * Copyright Hitachi Data Systems Corp. 2013 | |
5 | * | |
6 | * Authors: | |
7 | * Tomoki Sekiyama <tomoki.sekiyama@hds.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
10 | * See the COPYING file in the top-level directory. | |
11 | */ | |
12 | ||
121d0712 MA |
13 | #ifndef VSS_COMMON_H |
14 | #define VSS_COMMON_H | |
b39297ae TS |
15 | |
16 | #define __MIDL_user_allocate_free_DEFINED__ | |
b39297ae TS |
17 | #include <windows.h> |
18 | #include <shlwapi.h> | |
19 | ||
20 | /* Reduce warnings to include vss.h */ | |
21 | ||
22 | /* Ignore annotations for MS IDE */ | |
23 | #define __in IN | |
24 | #define __out OUT | |
25 | #define __RPC_unique_pointer | |
26 | #define __RPC_string | |
27 | #define __RPC__deref_inout_opt | |
28 | #define __RPC__out | |
29 | #ifndef __RPC__out_ecount_part | |
30 | #define __RPC__out_ecount_part(x, y) | |
31 | #endif | |
32 | #define _declspec(x) | |
33 | #undef uuid | |
34 | #define uuid(x) | |
35 | ||
36 | /* Undef some duplicated error codes redefined in vss.h */ | |
37 | #undef VSS_E_BAD_STATE | |
38 | #undef VSS_E_PROVIDER_NOT_REGISTERED | |
39 | #undef VSS_E_PROVIDER_VETO | |
40 | #undef VSS_E_OBJECT_NOT_FOUND | |
41 | #undef VSS_E_VOLUME_NOT_SUPPORTED | |
42 | #undef VSS_E_VOLUME_NOT_SUPPORTED_BY_PROVIDER | |
43 | #undef VSS_E_OBJECT_ALREADY_EXISTS | |
44 | #undef VSS_E_UNEXPECTED_PROVIDER_ERROR | |
45 | #undef VSS_E_INVALID_XML_DOCUMENT | |
46 | #undef VSS_E_MAXIMUM_NUMBER_OF_VOLUMES_REACHED | |
47 | #undef VSS_E_MAXIMUM_NUMBER_OF_SNAPSHOTS_REACHED | |
48 | ||
61fb0bd1 | 49 | #include <vss.h> |
94d81ae8 | 50 | #include "vss-handles.h" |
b39297ae TS |
51 | |
52 | /* Macros to convert char definitions to wchar */ | |
53 | #define _L(a) L##a | |
54 | #define L(a) _L(a) | |
55 | ||
b39297ae TS |
56 | const GUID g_gProviderId = { 0x3629d4ed, 0xee09, 0x4e0e, |
57 | {0x9a, 0x5c, 0x6d, 0x8b, 0xa2, 0x87, 0x2a, 0xef} }; | |
58 | const GUID g_gProviderVersion = { 0x11ef8b15, 0xcac6, 0x40d6, | |
59 | {0x8d, 0x5c, 0x8f, 0xfc, 0x16, 0x3f, 0x24, 0xca} }; | |
60 | ||
61 | const CLSID CLSID_QGAVSSProvider = { 0x6e6a3492, 0x8d4d, 0x440c, | |
62 | {0x96, 0x19, 0x5e, 0x5d, 0x0c, 0xc3, 0x1c, 0xa8} }; | |
63 | ||
64 | const TCHAR g_szClsid[] = TEXT("{6E6A3492-8D4D-440C-9619-5E5D0CC31CA8}"); | |
65 | const TCHAR g_szProgid[] = TEXT("QGAVSSProvider"); | |
66 | ||
872b69e6 | 67 | #ifdef HAVE_VSS_SDK |
b39297ae TS |
68 | /* Enums undefined in VSS SDK 7.2 but defined in newer Windows SDK */ |
69 | enum __VSS_VOLUME_SNAPSHOT_ATTRIBUTES { | |
70 | VSS_VOLSNAP_ATTR_NO_AUTORECOVERY = 0x00000002, | |
71 | VSS_VOLSNAP_ATTR_TXF_RECOVERY = 0x02000000 | |
72 | }; | |
872b69e6 | 73 | #endif |
b39297ae TS |
74 | |
75 | /* COM pointer utility; call ->Release() when it goes out of scope */ | |
76 | template <class T> | |
77 | class COMPointer { | |
78 | COMPointer(const COMPointer<T> &p) { } /* no copy */ | |
79 | T *p; | |
80 | public: | |
81 | COMPointer &operator=(T *new_p) | |
82 | { | |
83 | /* Assignment of a new T* (or NULL) causes release of previous p */ | |
84 | if (p && p != new_p) { | |
85 | p->Release(); | |
86 | } | |
87 | p = new_p; | |
88 | return *this; | |
89 | } | |
90 | /* Replace by assignment to the pointer of p */ | |
91 | T **replace(void) | |
92 | { | |
93 | *this = NULL; | |
94 | return &p; | |
95 | } | |
96 | /* Make COMPointer be used like T* */ | |
97 | operator T*() { return p; } | |
98 | T *operator->(void) { return p; } | |
99 | T &operator*(void) { return *p; } | |
100 | operator bool() { return !!p; } | |
101 | ||
102 | COMPointer(T *p = NULL) : p(p) { } | |
103 | ~COMPointer() { *this = NULL; } /* Automatic release */ | |
104 | }; | |
105 | ||
106 | /* | |
107 | * COM initializer; this should declared before COMPointer to uninitialize COM | |
108 | * after releasing COM objects. | |
109 | */ | |
110 | class COMInitializer { | |
111 | public: | |
112 | COMInitializer() { CoInitialize(NULL); } | |
113 | ~COMInitializer() { CoUninitialize(); } | |
114 | }; | |
115 | ||
116 | #endif |