VirtualBox

source: vbox/trunk/src/VBox/Runtime/testcase/tstTime-4.cpp@ 101472

Last change on this file since 101472 was 98103, checked in by vboxsync, 22 months ago

Copyright year updates by scm.

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1/* $Id: tstTime-4.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT Testcase - Simple RTTime vs. RTTimeSystem test.
4 */
5
6/*
7 * Copyright (C) 2006-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#include <iprt/time.h>
42#include <iprt/stream.h>
43#include <iprt/initterm.h>
44#include <iprt/thread.h>
45#include <VBox/sup.h>
46
47
48
49int main()
50{
51 unsigned cErrors = 0;
52
53 RTR3InitExeNoArguments(RTR3INIT_FLAGS_SUPLIB);
54 RTPrintf("tstTime-4: TESTING...\n");
55
56 /*
57 * Check that RTTimeSystemNanoTS doesn't go backwards and
58 * isn't too far from RTTimeNanoTS().
59 */
60 RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield(); /* warmup */
61 const uint64_t SysStartTS = RTTimeSystemNanoTS();
62 const uint64_t GipStartTS = RTTimeNanoTS();
63 uint64_t SysPrevTS, GipPrevTS;
64 do
65 {
66 SysPrevTS = RTTimeSystemNanoTS();
67 GipPrevTS = RTTimeNanoTS();
68 if (SysPrevTS < SysStartTS)
69 {
70 cErrors++;
71 RTPrintf("tstTime-4: Bad Sys time!\n");
72 }
73 if (GipPrevTS < GipStartTS)
74 {
75 cErrors++;
76 RTPrintf("tstTime-4: Bad Gip time!\n");
77 }
78 uint64_t Delta = GipPrevTS > SysPrevTS ? GipPrevTS - SysPrevTS :
79 SysPrevTS - GipPrevTS;
80 if (Delta > 100000000ULL /* 100 ms */ )
81 {
82 cErrors++;
83 RTPrintf("tstTime-4: Delta=%llu (GipPrevTS=%llu, SysPrevTS=%llu)!\n", Delta, GipPrevTS, SysPrevTS);
84 }
85
86 } while (SysPrevTS - SysStartTS < 2000000000 /* 2s */);
87
88
89 if (!cErrors)
90 RTPrintf("tstTime-4: SUCCESS\n");
91 else
92 RTPrintf("tstTime-4: FAILURE - %d errors\n", cErrors);
93 return !!cErrors;
94}
95
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