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94d81ae896
After triggering a freeze command without any following thaw command, qemu-ga will not respond to stop operation. This behaviour is wanted on Linux as there is no time limit for a freeze command and we want to prevent quitting in the middle of freeze, on the other hand on Windows the time limit for freeze is 10 seconds, so we should wait for the timeout, thaw the file system and quit. Signed-off-by: Sameeh Jubran <sameeh@daynix.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
120 lines
3.2 KiB
C++
120 lines
3.2 KiB
C++
/*
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* QEMU Guest Agent win32 VSS common declarations
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*
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* Copyright Hitachi Data Systems Corp. 2013
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*
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* Authors:
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* Tomoki Sekiyama <tomoki.sekiyama@hds.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef VSS_COMMON_H
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#define VSS_COMMON_H
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#define __MIDL_user_allocate_free_DEFINED__
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#include <windows.h>
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#include <shlwapi.h>
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/* Reduce warnings to include vss.h */
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/* Ignore annotations for MS IDE */
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#define __in IN
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#define __out OUT
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#define __RPC_unique_pointer
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#define __RPC_string
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#define __RPC__deref_inout_opt
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#define __RPC__out
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#ifndef __RPC__out_ecount_part
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#define __RPC__out_ecount_part(x, y)
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#endif
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#define _declspec(x)
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#undef uuid
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#define uuid(x)
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/* Undef some duplicated error codes redefined in vss.h */
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#undef VSS_E_BAD_STATE
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#undef VSS_E_PROVIDER_NOT_REGISTERED
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#undef VSS_E_PROVIDER_VETO
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#undef VSS_E_OBJECT_NOT_FOUND
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#undef VSS_E_VOLUME_NOT_SUPPORTED
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#undef VSS_E_VOLUME_NOT_SUPPORTED_BY_PROVIDER
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#undef VSS_E_OBJECT_ALREADY_EXISTS
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#undef VSS_E_UNEXPECTED_PROVIDER_ERROR
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#undef VSS_E_INVALID_XML_DOCUMENT
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#undef VSS_E_MAXIMUM_NUMBER_OF_VOLUMES_REACHED
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#undef VSS_E_MAXIMUM_NUMBER_OF_SNAPSHOTS_REACHED
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/*
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* VSS headers must be installed from Microsoft VSS SDK 7.2 available at:
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* http://www.microsoft.com/en-us/download/details.aspx?id=23490
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*/
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#include <inc/win2003/vss.h>
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#include "vss-handles.h"
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/* Macros to convert char definitions to wchar */
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#define _L(a) L##a
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#define L(a) _L(a)
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const GUID g_gProviderId = { 0x3629d4ed, 0xee09, 0x4e0e,
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{0x9a, 0x5c, 0x6d, 0x8b, 0xa2, 0x87, 0x2a, 0xef} };
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const GUID g_gProviderVersion = { 0x11ef8b15, 0xcac6, 0x40d6,
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{0x8d, 0x5c, 0x8f, 0xfc, 0x16, 0x3f, 0x24, 0xca} };
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const CLSID CLSID_QGAVSSProvider = { 0x6e6a3492, 0x8d4d, 0x440c,
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{0x96, 0x19, 0x5e, 0x5d, 0x0c, 0xc3, 0x1c, 0xa8} };
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const TCHAR g_szClsid[] = TEXT("{6E6A3492-8D4D-440C-9619-5E5D0CC31CA8}");
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const TCHAR g_szProgid[] = TEXT("QGAVSSProvider");
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/* Enums undefined in VSS SDK 7.2 but defined in newer Windows SDK */
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enum __VSS_VOLUME_SNAPSHOT_ATTRIBUTES {
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VSS_VOLSNAP_ATTR_NO_AUTORECOVERY = 0x00000002,
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VSS_VOLSNAP_ATTR_TXF_RECOVERY = 0x02000000
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};
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/* COM pointer utility; call ->Release() when it goes out of scope */
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template <class T>
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class COMPointer {
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COMPointer(const COMPointer<T> &p) { } /* no copy */
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T *p;
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public:
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COMPointer &operator=(T *new_p)
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{
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/* Assignment of a new T* (or NULL) causes release of previous p */
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if (p && p != new_p) {
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p->Release();
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}
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p = new_p;
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return *this;
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}
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/* Replace by assignment to the pointer of p */
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T **replace(void)
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{
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*this = NULL;
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return &p;
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}
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/* Make COMPointer be used like T* */
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operator T*() { return p; }
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T *operator->(void) { return p; }
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T &operator*(void) { return *p; }
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operator bool() { return !!p; }
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COMPointer(T *p = NULL) : p(p) { }
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~COMPointer() { *this = NULL; } /* Automatic release */
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};
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/*
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* COM initializer; this should declared before COMPointer to uninitialize COM
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* after releasing COM objects.
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*/
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class COMInitializer {
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public:
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COMInitializer() { CoInitialize(NULL); }
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~COMInitializer() { CoUninitialize(); }
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};
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#endif
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