/*
* @implemented
*/
BOOL
WINAPI
QueryMemoryResourceNotification(IN HANDLE ResourceNotificationHandle,
OUT PBOOL ResourceState)
{
EVENT_BASIC_INFORMATION EventInfo;
NTSTATUS Status;
if ((ResourceNotificationHandle) &&
(ResourceNotificationHandle != INVALID_HANDLE_VALUE) &&
(ResourceState))
{
Status = NtQueryEvent(ResourceNotificationHandle,
EventBasicInformation,
&EventInfo,
sizeof(EventInfo),
NULL);
if (NT_SUCCESS(Status))
{
*ResourceState = (EventInfo.EventState == 1);
return TRUE;
}
BaseSetLastNTError(Status);
}
else
{
SetLastError(ERROR_INVALID_PARAMETER);
}
return FALSE;
}
BOOL
WINAPI
BaseCheckForVDM(IN HANDLE ProcessHandle,
OUT LPDWORD ExitCode)
{
#if 0 // Unimplemented in BASESRV
NTSTATUS Status;
EVENT_BASIC_INFORMATION EventBasicInfo;
BASE_API_MESSAGE ApiMessage;
PBASE_GET_VDM_EXIT_CODE GetVdmExitCode = &ApiMessage.Data.GetVdmExitCode;
/* It's VDM if the process is actually a wait handle (an event) */
Status = NtQueryEvent(ProcessHandle,
EventBasicInformation,
&EventBasicInfo,
sizeof(EventBasicInfo),
NULL);
if (!NT_SUCCESS(Status)) return FALSE;
/* Setup the input parameters */
GetVdmExitCode->ConsoleHandle = NtCurrentPeb()->ProcessParameters->ConsoleHandle;
GetVdmExitCode->hParent = ProcessHandle;
/* Call CSRSS */
Status = CsrClientCallServer((PCSR_API_MESSAGE)&ApiMessage,
NULL,
CSR_CREATE_API_NUMBER(BASESRV_SERVERDLL_INDEX, BasepGetVDMExitCode),
sizeof(BASE_GET_VDM_EXIT_CODE));
if (!NT_SUCCESS(Status)) return FALSE;
/* Get the exit code from the reply */
*ExitCode = GetVdmExitCode->ExitCode;
#endif
return TRUE;
}
/*
* @implemented
*/
BOOL
WINAPI
QueryMemoryResourceNotification(
HANDLE ResourceNotificationHandle,
PBOOL ResourceState
)
{
EVENT_BASIC_INFORMATION ebi;
NTSTATUS Status;
if(ResourceState != NULL)
{
Status = NtQueryEvent(ResourceNotificationHandle,
EventBasicInformation,
&ebi,
sizeof(ebi),
NULL);
if(NT_SUCCESS(Status))
{
*ResourceState = ebi.EventState;
return TRUE;
}
SetLastErrorByStatus(Status);
}
else /* ResourceState == NULL */
{
SetLastError(ERROR_INVALID_PARAMETER);
}
return FALSE;
}
/*
* propBasicQueryEvent
*
* Purpose:
*
* Set information values for Event object type
*
* If ExtendedInfoAvailable is FALSE then it calls propSetDefaultInfo to set Basic page properties
*
*/
VOID propBasicQueryEvent(
_In_ PROP_OBJECT_INFO *Context,
_In_ HWND hwndDlg,
_In_ BOOL ExtendedInfoAvailable
)
{
NTSTATUS status;
ULONG bytesNeeded;
HANDLE hObject;
LPWSTR lpInfo;
EVENT_BASIC_INFORMATION ebi;
SetDlgItemText(hwndDlg, ID_EVENTTYPE, T_CannotQuery);
SetDlgItemText(hwndDlg, ID_EVENTSTATE, T_CannotQuery);
if (Context == NULL) {
return;
}
//
// Open Event object.
//
hObject = NULL;
if (!propOpenCurrentObject(Context, &hObject, EVENT_QUERY_STATE)) {
return;
}
RtlSecureZeroMemory(&ebi, sizeof(EVENT_BASIC_INFORMATION));
status = NtQueryEvent(hObject, EventBasicInformation, &ebi,
sizeof(EVENT_BASIC_INFORMATION), &bytesNeeded);
if (NT_SUCCESS(status)) {
//Event type
switch (ebi.EventType) {
case NotificationEvent:
lpInfo = TEXT("Notification");
break;
case SynchronizationEvent:
lpInfo = TEXT("Synchronization");
break;
default:
lpInfo = T_UnknownType;
break;
}
SetDlgItemText(hwndDlg, ID_EVENTTYPE, lpInfo);
//Event state
switch (ebi.EventState) {
case 0:
lpInfo = TEXT("Nonsignaled");
break;
case 1:
lpInfo = TEXT("Signaled");
break;
default:
lpInfo = TEXT("UnknownState");
break;
}
SetDlgItemText(hwndDlg, ID_EVENTSTATE, lpInfo);
}
//
// Query object basic and type info if needed.
//
if (ExtendedInfoAvailable == FALSE) {
propSetDefaultInfo(Context, hwndDlg, hObject);
}
NtClose(hObject);
}
