[fireball] 40962: - Implement ProcessIoCounters case in NtQueryInformationProcess. Patch by Dmitry Chapyshev. - Turn on I/O operations counter.

Author: fireball
Date: Sun May 17 21:04:53 2009
New Revision: 40962

URL: http://svn.reactos.org/svn/reactos?rev=40962&view=rev
Log:
- Implement ProcessIoCounters case in NtQueryInformationProcess. Patch by Dmitry
Chapyshev.
- Turn on I/O operations counter.

Modified:
    trunk/reactos/ntoskrnl/io/iomgr/iomgr.c
    trunk/reactos/ntoskrnl/ps/query.c

Modified: trunk/reactos/ntoskrnl/io/iomgr/iomgr.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/iomgr.c?…
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/iomgr.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/iomgr.c [iso-8859-1] Sun May 17 21:04:53 2009
@@ -31,7 +31,7 @@
 POBJECT_TYPE IoFileObjectType = NULL;
 extern POBJECT_TYPE IoControllerObjectType;
 extern UNICODE_STRING NtSystemRoot;
-BOOLEAN IoCountOperations = FALSE;
+BOOLEAN IoCountOperations = TRUE;
 ULONG IoReadOperationCount = 0;
 LARGE_INTEGER IoReadTransferCount = {{0, 0}};
 ULONG IoWriteOperationCount = 0;

Modified: trunk/reactos/ntoskrnl/ps/query.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ps/query.c?rev=40…
==============================================================================
--- trunk/reactos/ntoskrnl/ps/query.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ps/query.c [iso-8859-1] Sun May 17 21:04:53 2009
@@ -72,6 +72,7 @@
     PPROCESS_SESSION_INFORMATION SessionInfo =
         (PPROCESS_SESSION_INFORMATION)ProcessInformation;
     PVM_COUNTERS VmCounters = (PVM_COUNTERS)ProcessInformation;
+    PIO_COUNTERS IoCounters = (PIO_COUNTERS)ProcessInformation;
     PROCESS_DEVICEMAP_INFORMATION DeviceMap;
     PUNICODE_STRING ImageName;
     ULONG Cookie;
@@ -149,11 +150,10 @@
             ObDereferenceObject(Process);
             break;
 
-        /* Quote limits and I/O Counters: not implemented */
+        /* Quote limits: not implemented */
         case ProcessQuotaLimits:
-        case ProcessIoCounters:
-
-            Length = sizeof(IO_COUNTERS);
+
+            Length = sizeof(QUOTA_LIMITS);
             if (ProcessInformationLength != Length)
             {
                 Status = STATUS_INFO_LENGTH_MISMATCH;
@@ -169,7 +169,49 @@
                                                NULL);
             if (!NT_SUCCESS(Status)) break;
 
+            /* TODO: Implement this case */
             Status = STATUS_NOT_IMPLEMENTED;
+
+            /* Dereference the process */
+            ObDereferenceObject(Process);
+            break;
+
+        case ProcessIoCounters:
+
+            Length = sizeof(IO_COUNTERS);
+            if (ProcessInformationLength != Length)
+            {
+                Status = STATUS_INFO_LENGTH_MISMATCH;
+                break;
+            }
+
+            /* Reference the process */
+            Status = ObReferenceObjectByHandle(ProcessHandle,
+                                               PROCESS_QUERY_INFORMATION,
+                                               PsProcessType,
+                                               PreviousMode,
+                                               (PVOID*)&Process,
+                                               NULL);
+            if (!NT_SUCCESS(Status)) break;
+
+            _SEH2_TRY
+            {
+                IoCounters->ReadOperationCount =
Process->ReadOperationCount.QuadPart;
+                IoCounters->ReadTransferCount =
Process->ReadTransferCount.QuadPart;
+                IoCounters->WriteOperationCount =
Process->WriteOperationCount.QuadPart;
+                IoCounters->WriteTransferCount =
Process->WriteTransferCount.QuadPart;
+                IoCounters->OtherOperationCount =
Process->OtherOperationCount.QuadPart;
+                IoCounters->OtherTransferCount =
Process->OtherTransferCount.QuadPart;
+            }
+            _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+            {
+                /* Ignore exception */
+            }
+            _SEH2_END;
+
+            /* Set status to success in any case */
+            Status = STATUS_SUCCESS;
+
             /* Dereference the process */
             ObDereferenceObject(Process);
             break;