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Implemented Bus_PlugInRequestCleanUpEvtTimerFunc

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This commit is contained in:
Benjamin Höglinger
2018-05-13 22:15:07 +02:00
parent d16f9f5832
commit 301f9dd095
3 changed files with 54 additions and 3 deletions
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2
sys/Context.h
View File

@@ -181,7 +181,7 @@ typedef struct _FDO_PLUGIN_REQUEST_DATA
//
// High resolution timestamp taken when this request got moved to pending state
//
LONGLONG Timestamp;
LARGE_INTEGER Timestamp;
//
// Performance counter system frequency taken upon fetching timestamp

53
sys/Driver.c
View File

@@ -587,8 +587,59 @@ Bus_PlugInRequestCleanUpEvtTimerFunc(
WDFTIMER Timer
)
{
UNREFERENCED_PARAMETER(Timer);
ULONG i;
PFDO_DEVICE_DATA pFdoData;
WDFREQUEST curRequest;
ULONG items;
WDFDEVICE device;
PFDO_PLUGIN_REQUEST_DATA pPluginData;
LONGLONG freq;
LARGE_INTEGER pcNow;
LONGLONG ellapsed;
TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_DRIVER, "%!FUNC! Entry");
device = WdfTimerGetParentObject(Timer);
pFdoData = FdoGetData(device);
WdfSpinLockAcquire(pFdoData->PendingPluginRequestsLock);
items = WdfCollectionGetCount(pFdoData->PendingPluginRequests);
TraceEvents(TRACE_LEVEL_INFORMATION,
TRACE_DRIVER,
"Items count: %d",
items);
for (i = 0; i < items; i++)
{
curRequest = WdfCollectionGetItem(pFdoData->PendingPluginRequests, i);
pPluginData = PluginRequestGetData(curRequest);
freq = pPluginData->Frequency.QuadPart / 1000;
pcNow = KeQueryPerformanceCounter(NULL);
ellapsed = (pcNow.QuadPart - pPluginData->Timestamp.QuadPart) / freq;
TraceEvents(TRACE_LEVEL_VERBOSE,
TRACE_DRIVER,
"PDO (serial = %d) age: %llu",
pPluginData->Serial, ellapsed);
//if (Serial == curSerial)
//{
// WdfRequestComplete(curRequest, Status);
//
// WdfCollectionRemove(pFdoData->PendingPluginRequests, curRequest);
//
// TraceEvents(TRACE_LEVEL_INFORMATION,
// TRACE_DRIVER,
// "Removed item with serial: %d",
// curSerial);
//
// break;
//}
}
WdfSpinLockRelease(pFdoData->PendingPluginRequestsLock);
}

2
sys/busenum.c
View File

@@ -227,7 +227,7 @@ NTSTATUS Bus_PlugInDevice(
//
// Timestamp the request to track its age
//
pReqData->Timestamp = KeQueryPerformanceCounter(&pReqData->Frequency).QuadPart;
pReqData->Timestamp = KeQueryPerformanceCounter(&pReqData->Frequency);
//
// Keep track of pending request in collection