diff options
Diffstat (limited to 'qga/vss-win32/requester.cpp')
| -rw-r--r-- | qga/vss-win32/requester.cpp | 70 |
1 files changed, 33 insertions, 37 deletions
diff --git a/qga/vss-win32/requester.cpp b/qga/vss-win32/requester.cpp index 1e8dd3dfa8..922e74ddfc 100644 --- a/qga/vss-win32/requester.cpp +++ b/qga/vss-win32/requester.cpp @@ -50,10 +50,6 @@ static struct QGAVSSContext { STDAPI requester_init(void) { - vss_ctx.hEventFrozen = INVALID_HANDLE_VALUE; - vss_ctx.hEventThaw = INVALID_HANDLE_VALUE; - vss_ctx.hEventTimeout = INVALID_HANDLE_VALUE; - COMInitializer initializer; /* to call CoInitializeSecurity */ HRESULT hr = CoInitializeSecurity( NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_PKT_PRIVACY, @@ -94,17 +90,17 @@ STDAPI requester_init(void) static void requester_cleanup(void) { - if (vss_ctx.hEventFrozen != INVALID_HANDLE_VALUE) { + if (vss_ctx.hEventFrozen) { CloseHandle(vss_ctx.hEventFrozen); - vss_ctx.hEventFrozen = INVALID_HANDLE_VALUE; + vss_ctx.hEventFrozen = NULL; } - if (vss_ctx.hEventThaw != INVALID_HANDLE_VALUE) { + if (vss_ctx.hEventThaw) { CloseHandle(vss_ctx.hEventThaw); - vss_ctx.hEventThaw = INVALID_HANDLE_VALUE; + vss_ctx.hEventThaw = NULL; } - if (vss_ctx.hEventTimeout != INVALID_HANDLE_VALUE) { + if (vss_ctx.hEventTimeout) { CloseHandle(vss_ctx.hEventTimeout); - vss_ctx.hEventTimeout = INVALID_HANDLE_VALUE; + vss_ctx.hEventTimeout = NULL; } if (vss_ctx.pAsyncSnapshot) { vss_ctx.pAsyncSnapshot->Release(); @@ -256,6 +252,32 @@ void requester_freeze(int *num_vols, ErrorSet *errset) CoInitialize(NULL); + /* Allow unrestricted access to events */ + InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION); + SetSecurityDescriptorDacl(&sd, TRUE, NULL, FALSE); + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = &sd; + sa.bInheritHandle = FALSE; + + vss_ctx.hEventFrozen = CreateEvent(&sa, TRUE, FALSE, EVENT_NAME_FROZEN); + if (!vss_ctx.hEventFrozen) { + err_set(errset, GetLastError(), "failed to create event %s", + EVENT_NAME_FROZEN); + goto out; + } + vss_ctx.hEventThaw = CreateEvent(&sa, TRUE, FALSE, EVENT_NAME_THAW); + if (!vss_ctx.hEventThaw) { + err_set(errset, GetLastError(), "failed to create event %s", + EVENT_NAME_THAW); + goto out; + } + vss_ctx.hEventTimeout = CreateEvent(&sa, TRUE, FALSE, EVENT_NAME_TIMEOUT); + if (!vss_ctx.hEventTimeout) { + err_set(errset, GetLastError(), "failed to create event %s", + EVENT_NAME_TIMEOUT); + goto out; + } + assert(pCreateVssBackupComponents != NULL); hr = pCreateVssBackupComponents(&vss_ctx.pVssbc); if (FAILED(hr)) { @@ -366,32 +388,6 @@ void requester_freeze(int *num_vols, ErrorSet *errset) goto out; } - /* Allow unrestricted access to events */ - InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION); - SetSecurityDescriptorDacl(&sd, TRUE, NULL, FALSE); - sa.nLength = sizeof(sa); - sa.lpSecurityDescriptor = &sd; - sa.bInheritHandle = FALSE; - - vss_ctx.hEventFrozen = CreateEvent(&sa, TRUE, FALSE, EVENT_NAME_FROZEN); - if (vss_ctx.hEventFrozen == INVALID_HANDLE_VALUE) { - err_set(errset, GetLastError(), "failed to create event %s", - EVENT_NAME_FROZEN); - goto out; - } - vss_ctx.hEventThaw = CreateEvent(&sa, TRUE, FALSE, EVENT_NAME_THAW); - if (vss_ctx.hEventThaw == INVALID_HANDLE_VALUE) { - err_set(errset, GetLastError(), "failed to create event %s", - EVENT_NAME_THAW); - goto out; - } - vss_ctx.hEventTimeout = CreateEvent(&sa, TRUE, FALSE, EVENT_NAME_TIMEOUT); - if (vss_ctx.hEventTimeout == INVALID_HANDLE_VALUE) { - err_set(errset, GetLastError(), "failed to create event %s", - EVENT_NAME_TIMEOUT); - goto out; - } - /* * Start VSS quiescing operations. * CQGAVssProvider::CommitSnapshots will kick vss_ctx.hEventFrozen @@ -443,7 +439,7 @@ void requester_thaw(int *num_vols, ErrorSet *errset) { COMPointer<IVssAsync> pAsync; - if (vss_ctx.hEventThaw == INVALID_HANDLE_VALUE) { + if (!vss_ctx.hEventThaw) { /* * In this case, DoSnapshotSet is aborted or not started, * and no volumes must be frozen. We return without an error. |