| 1 | /* $Id: tstRTTime.cpp 48935 2013-10-07 21:19:37Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT Testcase - Simple RTTime tests (requires GIP).
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2013 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 | * Header Files *
|
|---|
| 29 | *******************************************************************************/
|
|---|
| 30 | #include <iprt/time.h>
|
|---|
| 31 |
|
|---|
| 32 | #include <iprt/err.h>
|
|---|
| 33 | #include <iprt/initterm.h>
|
|---|
| 34 | #include <iprt/message.h>
|
|---|
| 35 | #include <iprt/test.h>
|
|---|
| 36 | #include <iprt/thread.h>
|
|---|
| 37 |
|
|---|
| 38 | int main()
|
|---|
| 39 | {
|
|---|
| 40 | /*
|
|---|
| 41 | * Init.
|
|---|
| 42 | */
|
|---|
| 43 | RTTEST hTest;
|
|---|
| 44 | RTEXITCODE rcExit = RTTestInitExAndCreate(0, NULL, RTR3INIT_FLAGS_SUPLIB, "tstRTTime", &hTest);
|
|---|
| 45 | if (rcExit != RTEXITCODE_SUCCESS)
|
|---|
| 46 | return rcExit;
|
|---|
| 47 | RTTestBanner(hTest);
|
|---|
| 48 |
|
|---|
| 49 | /*
|
|---|
| 50 | * RTNanoTimeTS() shall never return something which
|
|---|
| 51 | * is less or equal to the return of the previous call.
|
|---|
| 52 | */
|
|---|
| 53 |
|
|---|
| 54 | RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield();
|
|---|
| 55 | uint64_t u64RTStartTS = RTTimeNanoTS();
|
|---|
| 56 | uint64_t u64OSStartTS = RTTimeSystemNanoTS();
|
|---|
| 57 |
|
|---|
| 58 | uint32_t i;
|
|---|
| 59 | uint64_t u64Prev = RTTimeNanoTS();
|
|---|
| 60 | for (i = 0; i < 100*_1M; i++)
|
|---|
| 61 | {
|
|---|
| 62 | uint64_t u64 = RTTimeNanoTS();
|
|---|
| 63 | if (u64 <= u64Prev)
|
|---|
| 64 | {
|
|---|
| 65 | /** @todo wrapping detection. */
|
|---|
| 66 | RTTestFailed(hTest, "i=%#010x u64=%#llx u64Prev=%#llx (1)\n", i, u64, u64Prev);
|
|---|
| 67 | if (RTTestErrorCount(hTest) >= 256)
|
|---|
| 68 | break;
|
|---|
| 69 | RTThreadYield();
|
|---|
| 70 | u64 = RTTimeNanoTS();
|
|---|
| 71 | }
|
|---|
| 72 | else if (u64 - u64Prev > 1000000000 /* 1sec */)
|
|---|
| 73 | {
|
|---|
| 74 | RTTestFailed(hTest, "i=%#010x u64=%#llx u64Prev=%#llx delta=%lld\n", i, u64, u64Prev, u64 - u64Prev);
|
|---|
| 75 | if (RTTestErrorCount(hTest) >= 256)
|
|---|
| 76 | break;
|
|---|
| 77 | RTThreadYield();
|
|---|
| 78 | u64 = RTTimeNanoTS();
|
|---|
| 79 | }
|
|---|
| 80 | if (!(i & (_1M*2 - 1)))
|
|---|
| 81 | {
|
|---|
| 82 | RTTestPrintf(hTest, RTTESTLVL_INFO, "i=%#010x u64=%#llx u64Prev=%#llx delta=%lld\n", i, u64, u64Prev, u64 - u64Prev);
|
|---|
| 83 | RTThreadYield();
|
|---|
| 84 | u64 = RTTimeNanoTS();
|
|---|
| 85 | }
|
|---|
| 86 | u64Prev = u64;
|
|---|
| 87 | }
|
|---|
| 88 |
|
|---|
| 89 | RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield();
|
|---|
| 90 | uint64_t u64RTElapsedTS = RTTimeNanoTS();
|
|---|
| 91 | uint64_t u64OSElapsedTS = RTTimeSystemNanoTS();
|
|---|
| 92 | u64RTElapsedTS -= u64RTStartTS;
|
|---|
| 93 | u64OSElapsedTS -= u64OSStartTS;
|
|---|
| 94 | int64_t i64Diff = u64OSElapsedTS >= u64RTElapsedTS ? u64OSElapsedTS - u64RTElapsedTS : u64RTElapsedTS - u64OSElapsedTS;
|
|---|
| 95 | if (i64Diff > (int64_t)(u64OSElapsedTS / 1000))
|
|---|
| 96 | RTTestFailed(hTest, "total time differs too much! u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n",
|
|---|
| 97 | u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS);
|
|---|
| 98 | else
|
|---|
| 99 | {
|
|---|
| 100 | RTTestValue(hTest, "Total time delta", u64OSElapsedTS - u64RTElapsedTS, RTTESTUNIT_NS);
|
|---|
| 101 | RTTestPrintf(hTest, RTTESTLVL_INFO, "total time difference: u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n",
|
|---|
| 102 | u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS);
|
|---|
| 103 | }
|
|---|
| 104 |
|
|---|
| 105 | #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) /** @todo This isn't really x86 or AMD64 specific... */
|
|---|
| 106 | RTTestValue(hTest, "RTTimeDbgSteps", RTTimeDbgSteps(), RTTESTUNIT_OCCURRENCES);
|
|---|
| 107 | RTTestValue(hTest, "RTTimeDbgSteps pp", ((uint64_t)RTTimeDbgSteps() * 1000) / i, RTTESTUNIT_PP1K);
|
|---|
| 108 | RTTestValue(hTest, "RTTimeDbgExpired", RTTimeDbgExpired(), RTTESTUNIT_OCCURRENCES);
|
|---|
| 109 | RTTestValue(hTest, "RTTimeDbgExpired pp", ((uint64_t)RTTimeDbgExpired() * 1000) / i, RTTESTUNIT_PP1K);
|
|---|
| 110 | RTTestValue(hTest, "RTTimeDbgBad", RTTimeDbgBad(), RTTESTUNIT_OCCURRENCES);
|
|---|
| 111 | RTTestValue(hTest, "RTTimeDbgBad pp", ((uint64_t)RTTimeDbgBad() * 1000) / i, RTTESTUNIT_PP1K);
|
|---|
| 112 | RTTestValue(hTest, "RTTimeDbgRaces", RTTimeDbgRaces(), RTTESTUNIT_OCCURRENCES);
|
|---|
| 113 | RTTestValue(hTest, "RTTimeDbgRaces pp", ((uint64_t)RTTimeDbgRaces() * 1000) / i, RTTESTUNIT_PP1K);
|
|---|
| 114 | #endif
|
|---|
| 115 |
|
|---|
| 116 | return RTTestSummaryAndDestroy(hTest);
|
|---|
| 117 | }
|
|---|
