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Diffstat (limited to '')
-rw-r--r-- | src/VBox/Runtime/testcase/tstTime-4.cpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/VBox/Runtime/testcase/tstTime-4.cpp b/src/VBox/Runtime/testcase/tstTime-4.cpp new file mode 100644 index 00000000..313fd228 --- /dev/null +++ b/src/VBox/Runtime/testcase/tstTime-4.cpp @@ -0,0 +1,85 @@ +/* $Id: tstTime-4.cpp $ */ +/** @file + * IPRT Testcase - Simple RTTime vs. RTTimeSystem test. + */ + +/* + * 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/stream.h> +#include <iprt/initterm.h> +#include <iprt/thread.h> +#include <VBox/sup.h> + + + +int main() +{ + unsigned cErrors = 0; + + RTR3InitExeNoArguments(RTR3INIT_FLAGS_SUPLIB); + RTPrintf("tstTime-4: TESTING...\n"); + + /* + * Check that RTTimeSystemNanoTS doesn't go backwards and + * isn't too far from RTTimeNanoTS(). + */ + RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield(); /* warmup */ + const uint64_t SysStartTS = RTTimeSystemNanoTS(); + const uint64_t GipStartTS = RTTimeNanoTS(); + uint64_t SysPrevTS, GipPrevTS; + do + { + SysPrevTS = RTTimeSystemNanoTS(); + GipPrevTS = RTTimeNanoTS(); + if (SysPrevTS < SysStartTS) + { + cErrors++; + RTPrintf("tstTime-4: Bad Sys time!\n"); + } + if (GipPrevTS < GipStartTS) + { + cErrors++; + RTPrintf("tstTime-4: Bad Gip time!\n"); + } + uint64_t Delta = GipPrevTS > SysPrevTS ? GipPrevTS - SysPrevTS : + SysPrevTS - GipPrevTS; + if (Delta > 100000000ULL /* 100 ms */ ) + { + cErrors++; + RTPrintf("tstTime-4: Delta=%llu (GipPrevTS=%llu, SysPrevTS=%llu)!\n", Delta, GipPrevTS, SysPrevTS); + } + + } while (SysPrevTS - SysStartTS < 2000000000 /* 2s */); + + + if (!cErrors) + RTPrintf("tstTime-4: SUCCESS\n"); + else + RTPrintf("tstTime-4: FAILURE - %d errors\n", cErrors); + return !!cErrors; +} + |