[sginsberg] 36508: - Implement IoGetPagingIoPriority and fix its export

Author: sginsberg
Date: Thu Sep 25 09:29:11 2008
New Revision: 36508

URL: http://svn.reactos.org/svn/reactos?rev=36508&view=rev
Log:
- Implement IoGetPagingIoPriority and fix its export

Modified:
    trunk/reactos/ntoskrnl/io/iomgr/irp.c
    trunk/reactos/ntoskrnl/ntoskrnl.spec

Modified: trunk/reactos/ntoskrnl/io/iomgr/irp.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/irp.c?re…
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/irp.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/irp.c [iso-8859-1] Thu Sep 25 09:29:11 2008
@@ -1535,16 +1535,37 @@
 }
 
 /*
- * @unimplemented
+ * @implemented
  */
 IO_PAGING_PRIORITY
-NTAPI
+FASTCALL
 IoGetPagingIoPriority(IN PIRP Irp)
 {
-    UNIMPLEMENTED;
-
-    /* Lie and say this isn't a paging IRP -- FIXME! */
-    return IoPagingPriorityInvalid;
+    IO_PAGING_PRIORITY Priority;
+    ULONG Flags;
+
+    /* Get the flags */
+    Flags = Irp->Flags;
+
+    /* Check what priority it has */
+    if (Flags & 0x8000) // FIXME: Undocumented flag
+    {
+        /* High priority */
+        Priority = IoPagingPriorityHigh;
+    }
+    else if (Flags & IRP_PAGING_IO)
+    {
+        /* Normal priority */
+        Priority = IoPagingPriorityNormal;
+    }
+    else
+    {
+        /* Invalid -- not a paging IRP */
+        Priority = IoPagingPriorityInvalid;
+    }
+
+    /* Return the priority */
+    return Priority;
 }
 
 /*

Modified: trunk/reactos/ntoskrnl/ntoskrnl.spec
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ntoskrnl.spec?rev…
==============================================================================
--- trunk/reactos/ntoskrnl/ntoskrnl.spec [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ntoskrnl.spec [iso-8859-1] Thu Sep 25 09:29:11 2008
@@ -415,7 +415,7 @@
 @ stdcall IoGetFileObjectGenericMapping()
 @ stdcall IoGetInitialStack()
 @ stdcall IoGetLowerDeviceObject(ptr)
-@ stdcall IoGetPagingIoPriority(ptr)
+@ fastcall IoGetPagingIoPriority(ptr)
 @ stdcall IoGetRelatedDeviceObject(ptr)
 @ stdcall IoGetRequestorProcess(ptr)
 @ stdcall IoGetRequestorProcessId(ptr)