VirtualBox

source: vbox/trunk/src/VBox/Runtime/r0drv/nt/thread2-r0drv-nt.cpp@ 9700

Last change on this file since 9700 was 8245, checked in by vboxsync, 17 years ago

rebranding: IPRT files again.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 4.9 KB
Line 
1/* $Id: thread2-r0drv-nt.cpp 8245 2008-04-21 17:24:28Z vboxsync $ */
2/** @file
3 * IPRT - Threads (Part 2), Ring-0 Driver, NT.
4 */
5
6/*
7 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 *
26 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
27 * Clara, CA 95054 USA or visit http://www.sun.com if you need
28 * additional information or have any questions.
29 */
30
31/*******************************************************************************
32* Header Files *
33*******************************************************************************/
34#include "the-nt-kernel.h"
35
36#include <iprt/thread.h>
37#include <iprt/assert.h>
38#include <iprt/err.h>
39
40#include "internal/thread.h"
41
42
43int rtThreadNativeInit(void)
44{
45 /* No TLS in Ring-0. :-/ */
46 return VINF_SUCCESS;
47}
48
49
50RTDECL(RTTHREAD) RTThreadSelf(void)
51{
52 return rtThreadGetByNative((RTNATIVETHREAD)PsGetCurrentThread());
53}
54
55
56int rtThreadNativeSetPriority(PRTTHREADINT pThread, RTTHREADTYPE enmType)
57{
58 /*
59 * Convert the IPRT priority type to NT priority.
60 *
61 * The NT priority is in the range 0..32, with realtime starting
62 * at 16 and the default for user processes at 8. (Should try find
63 * the appropriate #defines for some of this...)
64 */
65 KPRIORITY Priority;
66 switch (enmType)
67 {
68 case RTTHREADTYPE_INFREQUENT_POLLER: Priority = 6; break;
69 case RTTHREADTYPE_EMULATION: Priority = 7; break;
70 case RTTHREADTYPE_DEFAULT: Priority = 8; break;
71 case RTTHREADTYPE_MSG_PUMP: Priority = 9; break;
72 case RTTHREADTYPE_IO: Priority = LOW_REALTIME_PRIORITY; break;
73 case RTTHREADTYPE_TIMER: Priority = MAXIMUM_PRIORITY; break;
74
75 default:
76 AssertMsgFailed(("enmType=%d\n", enmType));
77 return VERR_INVALID_PARAMETER;
78 }
79
80 /*
81 * Do the actual modification.
82 */
83 NTSTATUS rc = KeSetPriorityThread((PKTHREAD)pThread->Core.Key, Priority);
84 AssertMsg(NT_SUCCESS(rc), ("%#x\n", rc));
85 return RTErrConvertFromNtStatus(rc);
86}
87
88
89int rtThreadNativeAdopt(PRTTHREADINT pThread)
90{
91 return VERR_NOT_IMPLEMENTED;
92}
93
94
95/**
96 * Native kernel thread wrapper function.
97 *
98 * This will forward to rtThreadMain and do termination upon return.
99 *
100 * @param pvArg Pointer to the argument package.
101 */
102static VOID __stdcall rtThreadNativeMain(PVOID pvArg)
103{
104 PETHREAD Self = PsGetCurrentThread();
105 PRTTHREADINT pThread = (PRTTHREADINT)pvArg;
106
107 rtThreadMain(pThread, (RTNATIVETHREAD)Self, &pThread->szName[0]);
108
109 ObDereferenceObject(Self); /* the rtThreadNativeCreate ref. */
110}
111
112
113int rtThreadNativeCreate(PRTTHREADINT pThreadInt, PRTNATIVETHREAD pNativeThread)
114{
115 /*
116 * PsCreateSysemThread create a thread an give us a handle in return.
117 * We requests the object for that handle and then close it, so what
118 * we keep around is the pointer to the thread object and not a handle.
119 * The thread will dereference the object before returning.
120 */
121 HANDLE hThread = NULL;
122 OBJECT_ATTRIBUTES ObjAttr;
123 InitializeObjectAttributes(&ObjAttr, NULL, OBJ_KERNEL_HANDLE, NULL, NULL);
124 NTSTATUS rc = PsCreateSystemThread(&hThread,
125 THREAD_ALL_ACCESS,
126 &ObjAttr,
127 NULL /* ProcessHandle - kernel */,
128 NULL /* ClientID - kernel */,
129 rtThreadNativeMain,
130 pThreadInt);
131 if (NT_SUCCESS(rc))
132 {
133 PVOID pvThreadObj;
134 rc = ObReferenceObjectByHandle(hThread, THREAD_ALL_ACCESS, NULL /* object type */,
135 KernelMode, &pvThreadObj, NULL /* handle info */);
136 if (NT_SUCCESS(rc))
137 {
138 ZwClose(hThread);
139 *pNativeThread = (RTNATIVETHREAD)pvThreadObj;
140 }
141 else
142 AssertMsgFailed(("%#x\n", rc));
143 }
144 return RTErrConvertFromNtStatus(rc);
145}
146
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