| 1 | /* $Id: tstTime-2.cpp 1 1970-01-01 00:00:00Z vboxsync $ */
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| 2 | /** @file
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| 3 | * InnoTek Portable Runtime Testcase - Simple RTTime test.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006 InnoTek Systemberatung GmbH
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * If you received this file as part of a commercial VirtualBox
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| 18 | * distribution, then only the terms of your commercial VirtualBox
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| 19 | * license agreement apply instead of the previous paragraph.
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| 20 | */
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| 21 |
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| 22 | /*******************************************************************************
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| 23 | * Header Files *
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| 24 | *******************************************************************************/
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| 25 | #ifdef __WIN__
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| 26 | # include <Windows.h>
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| 27 |
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| 28 | #elif defined __L4__
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| 29 |
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| 30 | #else /* posix */
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| 31 | # include <sys/time.h>
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| 32 | #endif
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| 33 |
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| 34 | #include <iprt/time.h>
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| 35 | #include <iprt/stream.h>
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| 36 | #include <iprt/runtime.h>
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| 37 | #include <iprt/thread.h>
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| 38 | #include <VBox/sup.h>
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| 39 |
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| 40 | DECLINLINE(uint64_t) OSNanoTS(void)
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| 41 | {
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| 42 | #ifdef __WIN__
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| 43 | uint64_t u64; /* manual say larger integer, should be safe to assume it's the same. */
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| 44 | GetSystemTimeAsFileTime((LPFILETIME)&u64);
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| 45 | return u64 * 100;
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| 46 |
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| 47 | #elif defined __L4__
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| 48 | /** @todo fix a different timesource on l4. */
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| 49 | return RTTimeNanoTS();
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| 50 |
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| 51 | #else /* posix */
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| 52 |
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| 53 | struct timeval tv;
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| 54 | gettimeofday(&tv, NULL);
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| 55 | return (uint64_t)tv.tv_sec * (uint64_t)(1000 * 1000 * 1000)
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| 56 | + (uint64_t)(tv.tv_usec * 1000);
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| 57 | #endif
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| 58 | }
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| 59 |
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| 60 |
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| 61 |
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| 62 | int main()
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| 63 | {
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| 64 | unsigned cErrors = 0;
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| 65 | int i;
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| 66 | RTR3Init();
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| 67 | SUPInit();
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| 68 | RTPrintf("tstTime-2: TESTING...\n");
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| 69 |
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| 70 | /*
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| 71 | * RTNanoTimeTS() shall never return something which
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| 72 | * is less or equal to the return of the previous call.
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| 73 | */
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| 74 |
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| 75 | OSNanoTS(); RTTimeNanoTS(); RTThreadYield();
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| 76 | uint64_t u64RTStartTS = RTTimeNanoTS();
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| 77 | uint64_t u64OSStartTS = OSNanoTS();
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| 78 | #define NUMBER_OF_CALLS (100*_1M)
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| 79 |
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| 80 | for (i = 0; i < NUMBER_OF_CALLS; i++)
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| 81 | RTTimeNanoTS();
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| 82 |
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| 83 | uint64_t u64RTElapsedTS = RTTimeNanoTS();
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| 84 | uint64_t u64OSElapsedTS = OSNanoTS();
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| 85 | u64RTElapsedTS -= u64RTStartTS;
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| 86 | u64OSElapsedTS -= u64OSStartTS;
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| 87 | int64_t i64Diff = u64OSElapsedTS >= u64RTElapsedTS ? u64OSElapsedTS - u64RTElapsedTS : u64RTElapsedTS - u64OSElapsedTS;
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| 88 | if (i64Diff > (int64_t)(u64OSElapsedTS / 1000))
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| 89 | {
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| 90 | RTPrintf("tstTime-2: error: total time differs too much! u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n",
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| 91 | u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS);
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| 92 | cErrors++;
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| 93 | }
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| 94 | else
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| 95 | RTPrintf("tstTime-2: total time difference: u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n",
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| 96 | u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS);
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| 97 |
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| 98 | #if defined __WIN__ || defined __LINUX__
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| 99 | RTPrintf("tstTime-2: RTTime1nsSteps -> %u out of %u calls\n", RTTime1nsSteps(), NUMBER_OF_CALLS);
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| 100 | #endif
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| 101 | if (!cErrors)
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| 102 | RTPrintf("tstTime-2: SUCCESS\n");
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| 103 | else
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| 104 | RTPrintf("tstTime-2: FAILURE - %d errors\n", cErrors);
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| 105 | return !!cErrors;
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| 106 | }
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