Add several qga_debug() statements in functions.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
/* Lookup Administrators group name from winmgmt */
static HRESULT GetAdminName(_bstr_t *name)
{
+ qga_debug_begin;
+
HRESULT hr;
COMPointer<IWbemLocator> pLoc;
COMPointer<IWbemServices> pSvc;
}
out:
+ qga_debug_end;
return hr;
}
static HRESULT getNameByStringSID(
const wchar_t *sid, LPWSTR buffer, LPDWORD bufferLen)
{
+ qga_debug_begin;
+
HRESULT hr = S_OK;
PSID psid = NULL;
SID_NAME_USE groupType;
LocalFree(psid);
out:
+ qga_debug_end;
return hr;
}
static HRESULT QGAProviderFind(
HRESULT (*found)(ICatalogCollection *, int, void *), void *arg)
{
+ qga_debug_begin;
+
HRESULT hr;
COMInitializer initializer;
COMPointer<IUnknown> pUnknown;
chk(pColl->SaveChanges(&n));
out:
+ qga_debug_end;
return hr;
}
/* Count QGA VSS provider in COM+ Application Catalog */
static HRESULT QGAProviderCount(ICatalogCollection *coll, int i, void *arg)
{
+ qga_debug_begin;
+
(*(int *)arg)++;
+
+ qga_debug_end;
return S_OK;
}
/* Remove QGA VSS provider from COM+ Application Catalog Collection */
static HRESULT QGAProviderRemove(ICatalogCollection *coll, int i, void *arg)
{
+ qga_debug_begin;
HRESULT hr;
qga_debug("Removing COM+ Application: %s", QGA_PROVIDER_NAME);
chk(coll->Remove(i));
out:
+ qga_debug_end;
return hr;
}
/* Unregister this module from COM+ Applications Catalog */
STDAPI COMUnregister(void)
{
+ qga_debug_begin;
+
HRESULT hr;
DllUnregisterServer();
chk(QGAProviderFind(QGAProviderRemove, NULL));
out:
+ qga_debug_end;
return hr;
}
/* Register this module to COM+ Applications Catalog */
STDAPI COMRegister(void)
{
+ qga_debug_begin;
+
HRESULT hr;
COMInitializer initializer;
COMPointer<IUnknown> pUnknown;
if (!g_hinstDll) {
errmsg(E_FAIL, "Failed to initialize DLL");
+ qga_debug_end;
return E_FAIL;
}
chk(QGAProviderFind(QGAProviderCount, (void *)&count));
if (count) {
errmsg(E_ABORT, "QGA VSS Provider is already installed");
+ qga_debug_end;
return E_ABORT;
}
COMUnregister();
}
+ qga_debug_end;
return hr;
}
static BOOL CreateRegistryKey(LPCTSTR key, LPCTSTR value, LPCTSTR data)
{
+ qga_debug_begin;
+
HKEY hKey;
LONG ret;
DWORD size;
RegCloseKey(hKey);
out:
+ qga_debug_end;
if (ret != ERROR_SUCCESS) {
/* As we cannot printf within DllRegisterServer(), show a dialog. */
errmsg_dialog(ret, "Cannot add registry", key);
/* Register this dll as a VSS provider */
STDAPI DllRegisterServer(void)
{
+ qga_debug_begin;
+
COMInitializer initializer;
COMPointer<IVssAdmin> pVssAdmin;
HRESULT hr = E_FAIL;
DllUnregisterServer();
}
+ qga_debug_end;
return hr;
}
/* Unregister this VSS hardware provider from the system */
STDAPI DllUnregisterServer(void)
{
+ qga_debug_begin;
+
TCHAR key[256];
COMInitializer initializer;
COMPointer<IVssAdmin> pVssAdmin;
SHDeleteKey(HKEY_CLASSES_ROOT, key);
SHDeleteKey(HKEY_CLASSES_ROOT, g_szProgid);
+ qga_debug_end;
return S_OK; /* Uninstall should never fail */
}
/* Stop QGA VSS provider service using Winsvc API */
STDAPI StopService(void)
{
+ qga_debug_begin;
+
HRESULT hr = S_OK;
SC_HANDLE manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
SC_HANDLE service = NULL;
out:
CloseServiceHandle(service);
CloseServiceHandle(manager);
+ qga_debug_end;
return hr;
}
#include "qemu/osdep.h"
#include "vss-common.h"
+#include "vss-debug.h"
#ifdef HAVE_VSS_SDK
#include <vscoordint.h>
#else
EXTERN_C
BOOL WINAPI DllMain(HINSTANCE hinstDll, DWORD dwReason, LPVOID lpReserved)
{
+ qga_debug("begin, reason = %lu", dwReason);
if (dwReason == DLL_PROCESS_ATTACH) {
g_hinstDll = hinstDll;
DisableThreadLibraryCalls(hinstDll);
}
+ qga_debug_end;
return TRUE;
}
STDAPI requester_init(void)
{
+ qga_debug_begin;
+
COMInitializer initializer; /* to call CoInitializeSecurity */
HRESULT hr = CoInitializeSecurity(
NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_PKT_PRIVACY,
return HRESULT_FROM_WIN32(GetLastError());
}
+ qga_debug_end;
return S_OK;
}
static void requester_cleanup(void)
{
+ qga_debug_begin;
+
if (vss_ctx.hEventFrozen) {
CloseHandle(vss_ctx.hEventFrozen);
vss_ctx.hEventFrozen = NULL;
vss_ctx.pVssbc = NULL;
}
vss_ctx.cFrozenVols = 0;
+ qga_debug_end;
}
STDAPI requester_deinit(void)
{
+ qga_debug_begin;
+
requester_cleanup();
pCreateVssBackupComponents = NULL;
hLib = NULL;
}
+ qga_debug_end;
return S_OK;
}
static HRESULT WaitForAsync(IVssAsync *pAsync)
{
+ qga_debug_begin;
+
HRESULT ret, hr;
do {
}
} while (ret == VSS_S_ASYNC_PENDING);
+ qga_debug_end;
return ret;
}
static void AddComponents(ErrorSet *errset)
{
+ qga_debug_begin;
+
unsigned int cWriters, i;
VSS_ID id, idInstance, idWriter;
BSTR bstrWriterName = NULL;
if (pComponent && info) {
pComponent->FreeComponentInfo(info);
}
+ qga_debug_end;
}
DWORD get_reg_dword_value(HKEY baseKey, LPCSTR subKey, LPCSTR valueName,
DWORD defaultData)
{
+ qga_debug_begin;
+
DWORD regGetValueError;
DWORD dwordData;
DWORD dataSize = sizeof(DWORD);
regGetValueError = RegGetValue(baseKey, subKey, valueName, RRF_RT_DWORD,
NULL, &dwordData, &dataSize);
+ qga_debug_end;
if (regGetValueError != ERROR_SUCCESS) {
return defaultData;
}
VSS_BACKUP_TYPE get_vss_backup_type(
VSS_BACKUP_TYPE defaultVssBT = DEFAULT_VSS_BACKUP_TYPE)
{
+ qga_debug_begin;
+
VSS_BACKUP_TYPE vssBackupType;
vssBackupType = static_cast<VSS_BACKUP_TYPE>(
QGA_PROVIDER_REGISTRY_ADDRESS,
"VssOption",
defaultVssBT));
+ qga_debug_end;
if (!is_valid_vss_backup_type(vssBackupType)) {
return defaultVssBT;
}
void requester_freeze(int *num_vols, void *mountpoints, ErrorSet *errset)
{
+ qga_debug_begin;
+
COMPointer<IVssAsync> pAsync;
HANDLE volume;
HRESULT hr;
if (vss_ctx.pVssbc) { /* already frozen */
*num_vols = 0;
+ qga_debug("finished, already frozen");
return;
}
}
}
+ qga_debug("preparing for backup");
hr = vss_ctx.pVssbc->PrepareForBackup(pAsync.replace());
if (SUCCEEDED(hr)) {
hr = WaitForAsync(pAsync);
* CQGAVssProvider::CommitSnapshots will kick vss_ctx.hEventFrozen
* after the applications and filesystems are frozen.
*/
+ qga_debug("do snapshot set");
hr = vss_ctx.pVssbc->DoSnapshotSet(&vss_ctx.pAsyncSnapshot);
if (FAILED(hr)) {
err_set(errset, hr, "failed to do snapshot set");
*num_vols = vss_ctx.cFrozenVols = num_fixed_drives;
}
+ qga_debug("end successful");
return;
out:
out1:
requester_cleanup();
CoUninitialize();
+
+ qga_debug_end;
}
void requester_thaw(int *num_vols, void *mountpints, ErrorSet *errset)
{
+ qga_debug_begin;
COMPointer<IVssAsync> pAsync;
if (!vss_ctx.hEventThaw) {
* and no volumes must be frozen. We return without an error.
*/
*num_vols = 0;
+ qga_debug("finished, no volumes were frozen");
+
return;
}
CoUninitialize();
StopService();
+
+ qga_debug_end;
}