VirtualBox

source: vbox/trunk/src/VBox/Runtime/testcase/tstTime-3.cpp@ 102335

Last change on this file since 102335 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

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1/* $Id: tstTime-3.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT Testcase - Simple RTTime 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/string.h>
44#include <iprt/initterm.h>
45#include <iprt/thread.h>
46#include <iprt/errcore.h>
47
48
49
50int main(int argc, char **argv)
51{
52 RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_SUPLIB);
53
54 if (argc <= 1)
55 {
56 RTPrintf("tstTime-3: usage: tstTime-3 <seconds> [seconds2 [..]]\n");
57 return 1;
58 }
59
60 RTPrintf("tstTime-3: Testing difference between RTTimeNanoTS() and RTTimeSystemNanoTS()...\n");
61
62 for (int i = 1; i < argc; i++)
63 {
64 uint64_t cSeconds = 0;
65 int rc = RTStrToUInt64Ex(argv[i], NULL, 0, &cSeconds);
66 if (RT_FAILURE(rc))
67 {
68 RTPrintf("tstTime-3: Invalid argument %d: %s\n", i, argv[i]);
69 return 1;
70 }
71 RTPrintf("tstTime-3: %d - %RU64 seconds period...\n", i, cSeconds);
72
73 RTTimeNanoTS(); RTTimeSystemNanoTS(); RTThreadSleep(1);
74 uint64_t u64RTStartTS = RTTimeNanoTS();
75 uint64_t u64OSStartTS = RTTimeSystemNanoTS();
76
77 RTThreadSleep(cSeconds * 1000);
78
79 uint64_t u64RTElapsedTS = RTTimeNanoTS();
80 uint64_t u64OSElapsedTS = RTTimeSystemNanoTS();
81 u64RTElapsedTS -= u64RTStartTS;
82 u64OSElapsedTS -= u64OSStartTS;
83
84 RTPrintf("tstTime-3: %d - RT: %16RU64 ns\n", i, u64RTElapsedTS);
85 RTPrintf("tstTime-3: %d - OS: %16RU64 ns\n", i, u64OSElapsedTS);
86 RTPrintf("tstTime-3: %d - diff: %16RI64 ns\n", i, u64RTElapsedTS - u64OSElapsedTS);
87 }
88
89 return 0;
90}
91
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