VirtualBox

source: vbox/trunk/src/VBox/Runtime/testcase/tstTime-4.cpp@ 66039

Last change on this file since 66039 was 62477, checked in by vboxsync, 8 years ago

(C) 2016

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id Revision
File size: 2.9 KB
Line 
1/* $Id: tstTime-4.cpp 62477 2016-07-22 18:27:37Z vboxsync $ */
2/** @file
3 * IPRT Testcase - Simple RTTime vs. RTTimeSystem test.
4 */
5
6/*
7 * Copyright (C) 2006-2016 Oracle Corporation
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
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include <iprt/time.h>
32#include <iprt/stream.h>
33#include <iprt/initterm.h>
34#include <iprt/thread.h>
35#include <VBox/sup.h>
36
37
38
39int main()
40{
41 unsigned cErrors = 0;
42
43 RTR3InitExeNoArguments(RTR3INIT_FLAGS_SUPLIB);
44 RTPrintf("tstTime-4: TESTING...\n");
45
46 /*
47 * Check that RTTimeSystemNanoTS doesn't go backwards and
48 * isn't too far from RTTimeNanoTS().
49 */
50 RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield(); /* warmup */
51 const uint64_t SysStartTS = RTTimeSystemNanoTS();
52 const uint64_t GipStartTS = RTTimeNanoTS();
53 uint64_t SysPrevTS, GipPrevTS;
54 do
55 {
56 SysPrevTS = RTTimeSystemNanoTS();
57 GipPrevTS = RTTimeNanoTS();
58 if (SysPrevTS < SysStartTS)
59 {
60 cErrors++;
61 RTPrintf("tstTime-4: Bad Sys time!\n");
62 }
63 if (GipPrevTS < GipStartTS)
64 {
65 cErrors++;
66 RTPrintf("tstTime-4: Bad Gip time!\n");
67 }
68 uint64_t Delta = GipPrevTS > SysPrevTS ? GipPrevTS - SysPrevTS :
69 SysPrevTS - GipPrevTS;
70 if (Delta > 100000000ULL /* 100 ms */ )
71 {
72 cErrors++;
73 RTPrintf("tstTime-4: Delta=%llu (GipPrevTS=%llu, SysPrevTS=%llu)!\n", Delta, GipPrevTS, SysPrevTS);
74 }
75
76 } while (SysPrevTS - SysStartTS < 2000000000 /* 2s */);
77
78
79 if (!cErrors)
80 RTPrintf("tstTime-4: SUCCESS\n");
81 else
82 RTPrintf("tstTime-4: FAILURE - %d errors\n", cErrors);
83 return !!cErrors;
84}
85
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