1 files changed, 157 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r0drv/nt/thread2-r0drv-nt.cpp b/src/VBox/Runtime/r0drv/nt/thread2-r0drv-nt.cpp
new file mode 100644
index 00000000..21d74e06
--- /dev/null
+++ b/src/VBox/Runtime/r0drv/nt/thread2-r0drv-nt.cpp
@@ -0,0 +1,157 @@
+/* $Id: thread2-r0drv-nt.cpp $ */
+/** @file
+ * IPRT - Threads (Part 2), Ring-0 Driver, NT.
+ */
+
+/*
+ * Copyright (C) 2006-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include "the-nt-kernel.h"
+
+#include <iprt/thread.h>
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+
+#include "internal/thread.h"
+
+
+DECLHIDDEN(int) rtThreadNativeInit(void)
+{
+    /* No TLS in Ring-0. :-/ */
+    return VINF_SUCCESS;
+}
+
+
+RTDECL(RTTHREAD) RTThreadSelf(void)
+{
+    return rtThreadGetByNative((RTNATIVETHREAD)PsGetCurrentThread());
+}
+
+
+DECLHIDDEN(int) rtThreadNativeSetPriority(PRTTHREADINT pThread, RTTHREADTYPE enmType)
+{
+    /*
+     * Convert the IPRT priority type to NT priority.
+     *
+     * The NT priority is in the range 0..32, with realtime starting
+     * at 16 and the default for user processes at 8. (Should try find
+     * the appropriate #defines for some of this...)
+     */
+    KPRIORITY Priority;
+    switch (enmType)
+    {
+        case RTTHREADTYPE_INFREQUENT_POLLER:    Priority = 6; break;
+        case RTTHREADTYPE_EMULATION:            Priority = 7; break;
+        case RTTHREADTYPE_DEFAULT:              Priority = 8; break;
+        case RTTHREADTYPE_MSG_PUMP:             Priority = 9; break;
+        case RTTHREADTYPE_IO:                   Priority = LOW_REALTIME_PRIORITY; break;
+        case RTTHREADTYPE_TIMER:                Priority = MAXIMUM_PRIORITY; break;
+
+        default:
+            AssertMsgFailed(("enmType=%d\n", enmType));
+            return VERR_INVALID_PARAMETER;
+    }
+
+    /*
+     * Do the actual modification.
+     */
+    /*KPRIORITY oldPririty = */KeSetPriorityThread((PKTHREAD)pThread->Core.Key, Priority);
+    return VINF_SUCCESS;
+}
+
+
+DECLHIDDEN(int) rtThreadNativeAdopt(PRTTHREADINT pThread)
+{
+    RT_NOREF1(pThread);
+    return VERR_NOT_IMPLEMENTED;
+}
+
+
+DECLHIDDEN(void) rtThreadNativeWaitKludge(PRTTHREADINT pThread)
+{
+    PVOID pvThreadObj = pThread->Core.Key;
+    NTSTATUS rcNt = KeWaitForSingleObject(pvThreadObj, Executive, KernelMode, FALSE, NULL);
+    AssertMsg(rcNt == STATUS_SUCCESS, ("rcNt=%#x\n", rcNt)); RT_NOREF1(rcNt);
+}
+
+
+DECLHIDDEN(void) rtThreadNativeDestroy(PRTTHREADINT pThread)
+{
+    NOREF(pThread);
+}
+
+
+/**
+ * Native kernel thread wrapper function.
+ *
+ * This will forward to rtThreadMain and do termination upon return.
+ *
+ * @param pvArg         Pointer to the argument package.
+ */
+static VOID rtThreadNativeMain(PVOID pvArg)
+{
+    PETHREAD Self = PsGetCurrentThread();
+    PRTTHREADINT pThread = (PRTTHREADINT)pvArg;
+
+    rtThreadMain(pThread, (RTNATIVETHREAD)Self, &pThread->szName[0]);
+
+    ObDereferenceObject(Self); /* the rtThreadNativeCreate ref. */
+}
+
+
+DECLHIDDEN(int) rtThreadNativeCreate(PRTTHREADINT pThreadInt, PRTNATIVETHREAD pNativeThread)
+{
+    /*
+     * PsCreateSysemThread create a thread an give us a handle in return.
+     * We requests the object for that handle and then close it, so what
+     * we keep around is the pointer to the thread object and not a handle.
+     * The thread will dereference the object before returning.
+     */
+    HANDLE hThread = NULL;
+    OBJECT_ATTRIBUTES ObjAttr;
+    InitializeObjectAttributes(&ObjAttr, NULL, OBJ_KERNEL_HANDLE, NULL, NULL);
+    NTSTATUS rc = PsCreateSystemThread(&hThread,
+                                       THREAD_ALL_ACCESS,
+                                       &ObjAttr,
+                                       NULL /* ProcessHandle - kernel */,
+                                       NULL /* ClientID - kernel */,
+                                       rtThreadNativeMain,
+                                       pThreadInt);
+    if (NT_SUCCESS(rc))
+    {
+        PVOID pvThreadObj;
+        rc = ObReferenceObjectByHandle(hThread, THREAD_ALL_ACCESS, NULL /* object type */,
+                                       KernelMode, &pvThreadObj, NULL /* handle info */);
+        if (NT_SUCCESS(rc))
+        {
+            ZwClose(hThread);
+            *pNativeThread = (RTNATIVETHREAD)pvThreadObj;
+        }
+        else
+            AssertMsgFailed(("%#x\n", rc));
+    }
+    return RTErrConvertFromNtStatus(rc);
+}
+