1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/* $Id: tstRTTime.cpp $ */
/** @file
* IPRT Testcase - Simple RTTime tests (requires GIP).
*/
/*
* Copyright (C) 2006-2019 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 <iprt/time.h>
#include <iprt/errcore.h>
#include <iprt/initterm.h>
#include <iprt/message.h>
#include <iprt/test.h>
#include <iprt/thread.h>
int main()
{
/*
* Init.
*/
RTTEST hTest;
RTEXITCODE rcExit = RTTestInitExAndCreate(0, NULL, RTR3INIT_FLAGS_SUPLIB, "tstRTTime", &hTest);
if (rcExit != RTEXITCODE_SUCCESS)
return rcExit;
RTTestBanner(hTest);
/*
* RTNanoTimeTS() shall never return something which
* is less or equal to the return of the previous call.
*/
RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield();
uint64_t u64RTStartTS = RTTimeNanoTS();
uint64_t u64OSStartTS = RTTimeSystemNanoTS();
uint32_t i;
uint64_t u64Prev = RTTimeNanoTS();
for (i = 0; i < 100*_1M; i++)
{
uint64_t u64 = RTTimeNanoTS();
if (u64 <= u64Prev)
{
/** @todo wrapping detection. */
RTTestFailed(hTest, "i=%#010x u64=%#llx u64Prev=%#llx (1)\n", i, u64, u64Prev);
if (RTTestErrorCount(hTest) >= 256)
break;
RTThreadYield();
u64 = RTTimeNanoTS();
}
else if (u64 - u64Prev > 1000000000 /* 1sec */)
{
RTTestFailed(hTest, "i=%#010x u64=%#llx u64Prev=%#llx delta=%lld\n", i, u64, u64Prev, u64 - u64Prev);
if (RTTestErrorCount(hTest) >= 256)
break;
RTThreadYield();
u64 = RTTimeNanoTS();
}
if (!(i & (_1M*2 - 1)))
{
RTTestPrintf(hTest, RTTESTLVL_INFO, "i=%#010x u64=%#llx u64Prev=%#llx delta=%lld\n", i, u64, u64Prev, u64 - u64Prev);
RTThreadYield();
u64 = RTTimeNanoTS();
}
u64Prev = u64;
}
RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield();
uint64_t u64RTElapsedTS = RTTimeNanoTS();
uint64_t u64OSElapsedTS = RTTimeSystemNanoTS();
u64RTElapsedTS -= u64RTStartTS;
u64OSElapsedTS -= u64OSStartTS;
int64_t i64Diff = u64OSElapsedTS >= u64RTElapsedTS ? u64OSElapsedTS - u64RTElapsedTS : u64RTElapsedTS - u64OSElapsedTS;
if (i64Diff > (int64_t)(u64OSElapsedTS / 1000))
RTTestFailed(hTest, "total time differs too much! u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n",
u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS);
else
{
if (u64OSElapsedTS >= u64RTElapsedTS)
RTTestValue(hTest, "Total time delta", u64OSElapsedTS - u64RTElapsedTS, RTTESTUNIT_NS);
else
RTTestValue(hTest, "Total time delta", u64RTElapsedTS - u64OSElapsedTS, RTTESTUNIT_NS);
RTTestPrintf(hTest, RTTESTLVL_INFO, "total time difference: u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n",
u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS);
}
#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) /** @todo This isn't really x86 or AMD64 specific... */
RTTestValue(hTest, "RTTimeDbgSteps", RTTimeDbgSteps(), RTTESTUNIT_OCCURRENCES);
RTTestValue(hTest, "RTTimeDbgSteps pp", ((uint64_t)RTTimeDbgSteps() * 1000) / i, RTTESTUNIT_PP1K);
RTTestValue(hTest, "RTTimeDbgExpired", RTTimeDbgExpired(), RTTESTUNIT_OCCURRENCES);
RTTestValue(hTest, "RTTimeDbgExpired pp", ((uint64_t)RTTimeDbgExpired() * 1000) / i, RTTESTUNIT_PP1K);
RTTestValue(hTest, "RTTimeDbgBad", RTTimeDbgBad(), RTTESTUNIT_OCCURRENCES);
RTTestValue(hTest, "RTTimeDbgBad pp", ((uint64_t)RTTimeDbgBad() * 1000) / i, RTTESTUNIT_PP1K);
RTTestValue(hTest, "RTTimeDbgRaces", RTTimeDbgRaces(), RTTESTUNIT_OCCURRENCES);
RTTestValue(hTest, "RTTimeDbgRaces pp", ((uint64_t)RTTimeDbgRaces() * 1000) / i, RTTESTUNIT_PP1K);
#endif
return RTTestSummaryAndDestroy(hTest);
}
|
