Initial Deferred Procedure Call (DPC) support

xtoskrnl/ke/dpc.c

@@ -0,0 +1,60 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtoskrnl/ke/dpc.c
+ * DESCRIPTION:     Deferred Procedure Call (DPC) support
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <xtos.h>
+
+
+/**
+ * Initializes Deferred Procedure Call (DPC) object.
+ *
+ * @param Dpc
+ *        Supplies a pointer to the DPC being initialized.
+ *
+ * @param DpcRoutine
+ *        Supplies a pointer to the DPC routine being called on object removal.
+ *
+ * @param DpcContext
+ *        Supplies a pointer to memory area containing context data for DPC routine.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since NT 3.5
+ */
+XTAPI
+VOID
+KeInitializeDpc(IN PKDPC Dpc,
+                IN PKDEFERRED_ROUTINE DpcRoutine,
+                IN PVOID DpcContext)
+{
+    /* Initialize DPC */
+    Dpc->Type = DpcObject;
+    Dpc->Number = 0;
+    Dpc->Importance = MediumImportance;
+
+    /* Initialize DPC routine and context data */
+    Dpc->DeferredContext = DpcContext;
+    Dpc->DeferredRoutine = DpcRoutine;
+    Dpc->DpcData = NULL;
+}
+
+/**
+ * Retires the expired DPC objects found in the DPC list.
+ *
+ * @param Prcb
+ *        Supplies apointer to the Prcessor Control Block (PRCB).
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTFASTCALL
+VOID
+KepRetireDpcList(IN PKPROCESSOR_CONTROL_BLOCK Prcb)
+{
+    UNIMPLEMENTED;
+}