Migrate KE subsystem to C++

xtoskrnl/ke/dpc.cc

@@ -0,0 +1,157 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtoskrnl/ke/dpc.cc
+ * DESCRIPTION:     Deferred Procedure Call (DPC) support
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <xtos.hh>
+
+
+/* Kernel Library */
+namespace KE
+{
+
+/**
+ * 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
+Dpc::InitializeDpc(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;
+}
+
+/**
+ * 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 5.2
+ */
+XTAPI
+VOID
+Dpc::InitializeThreadedDpc(IN PKDPC Dpc,
+                           IN PKDEFERRED_ROUTINE DpcRoutine,
+                           IN PVOID DpcContext)
+{
+    /* Initialize threaded DPC */
+    Dpc->Type = ThreadedDpcObject;
+    Dpc->Number = 0;
+    Dpc->Importance = MediumImportance;
+
+    /* Initialize DPC routine and context data */
+    Dpc->DeferredContext = DpcContext;
+    Dpc->DeferredRoutine = DpcRoutine;
+    Dpc->DpcData = NULL;
+}
+
+/**
+ * Sets the target processor number for DPC.
+ *
+ * @param Dpc
+ *        Supplies a pointer to the DPC object.
+ *
+ * @param Number
+ *        Supplies the target processor number.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since NT 4.0
+ */
+XTAPI
+VOID
+Dpc::SetTargetProcessor(IN PKDPC Dpc,
+                        IN CCHAR Number)
+{
+    Dpc->Number = MAXIMUM_PROCESSORS + Number;
+}
+
+/**
+ * Decrements the DPC call barier.
+ *
+ * @param SystemArgument
+ *        Supplies an address of the DPC call barrier.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since NT 5.2
+ */
+XTAPI
+VOID
+Dpc::SignalCallDone(IN PVOID SystemArgument)
+{
+    RtlAtomicDecrement32((PLONG)SystemArgument);
+}
+
+/**
+ * Decrements the DPC call reverse barier.
+ *
+ * @param SystemArgument
+ *        Supplies an address of the DPC call barrier.
+ *
+ * @return This routine returns TRUE if just one processor is waiting on the barrier, FALSE if more.
+ *
+ * @since NT 5.2
+ */
+XTAPI
+BOOLEAN
+Dpc::SignalCallSynchronize(IN PVOID SystemArgument)
+{
+    UNIMPLEMENTED;
+
+    /* SMP not yet implemented, return TRUE */
+    return TRUE;
+}
+
+/**
+ * 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
+Dpc::RetireList(IN PKPROCESSOR_CONTROL_BLOCK Prcb)
+{
+    UNIMPLEMENTED;
+}
+
+} /* namespace */