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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 03:01:46 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 03:01:46 +0000 |
commit | f8fe689a81f906d1b91bb3220acde2a4ecb14c5b (patch) | |
tree | 26484e9d7e2c67806c2d1760196ff01aaa858e8c /src/VBox/Runtime/r0drv/darwin/time-r0drv-darwin.cpp | |
parent | Initial commit. (diff) | |
download | virtualbox-f8fe689a81f906d1b91bb3220acde2a4ecb14c5b.tar.xz virtualbox-f8fe689a81f906d1b91bb3220acde2a4ecb14c5b.zip |
Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/VBox/Runtime/r0drv/darwin/time-r0drv-darwin.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r0drv/darwin/time-r0drv-darwin.cpp b/src/VBox/Runtime/r0drv/darwin/time-r0drv-darwin.cpp new file mode 100644 index 00000000..de3b947b --- /dev/null +++ b/src/VBox/Runtime/r0drv/darwin/time-r0drv-darwin.cpp @@ -0,0 +1,98 @@ +/* $Id: time-r0drv-darwin.cpp $ */ +/** @file + * IPRT - Time, Ring-0 Driver, Darwin. + */ + +/* + * 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 * +*********************************************************************************************************************************/ +#define LOG_GROUP RTLOGGROUP_TIME +#include "the-darwin-kernel.h" +#include "internal/iprt.h" +#include <iprt/time.h> + +#include <iprt/asm.h> + + +DECLINLINE(uint64_t) rtTimeGetSystemNanoTS(void) +{ + static int8_t s_fSimple = -1; + + /* first call: check if life is simple or not. */ + if (s_fSimple < 0) + { + struct mach_timebase_info Info; + clock_timebase_info(&Info); + ASMAtomicXchgS8((int8_t * volatile)&s_fSimple, Info.denom == 1 && Info.numer == 1); + } + + /* special case: absolute time is in nanoseconds */ + if (s_fSimple) + return mach_absolute_time(); + + /* general case: let mach do the mult/div for us. */ + uint64_t u64; + absolutetime_to_nanoseconds(mach_absolute_time(), &u64); + return u64; +} + + +RTDECL(uint64_t) RTTimeNanoTS(void) +{ + return rtTimeGetSystemNanoTS(); +} + + +RTDECL(uint64_t) RTTimeMilliTS(void) +{ + return rtTimeGetSystemNanoTS() / RT_NS_1MS; +} + + +RTDECL(uint64_t) RTTimeSystemNanoTS(void) +{ + return rtTimeGetSystemNanoTS(); +} + + +RTDECL(uint64_t) RTTimeSystemMilliTS(void) +{ + return rtTimeGetSystemNanoTS() / RT_NS_1MS; +} + + +RTDECL(PRTTIMESPEC) RTTimeNow(PRTTIMESPEC pTime) +{ +#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060 + uint32_t uSecs; + uint32_t uNanosecs; +#else + clock_sec_t uSecs; + clock_nsec_t uNanosecs; +#endif + clock_get_calendar_nanotime(&uSecs, &uNanosecs); + return RTTimeSpecSetNano(pTime, (uint64_t)uSecs * RT_NS_1SEC + uNanosecs); +} + |