74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
/*
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https://github.com/peterix/dfhack
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Copyright (c) 2009-2011 Petr Mrázek (peterix@gmail.com)
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must
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not claim that you wrote the original software. If you use this
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software in a product, an acknowledgment in the product documentation
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would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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#include "Internal.h"
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#include "Export.h"
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#include "Core.h"
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#include "MiscUtils.h"
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#ifndef LINUX_BUILD
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#include <Windows.h>
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#else
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#include <sys/time.h>
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#include <ctime>
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#endif
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#ifdef LINUX_BUILD // Linux
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uint64_t GetTimeMs64()
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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uint64_t ret = tv.tv_usec;
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// Convert from micro seconds (10^-6) to milliseconds (10^-3)
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ret /= 1000;
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// Adds the seconds (10^0) after converting them to milliseconds (10^-3)
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ret += (tv.tv_sec * 1000);
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return ret;
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}
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#else // Windows
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uint64_t GetTimeMs64()
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{
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FILETIME ft;
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LARGE_INTEGER li;
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// Get the amount of 100 nano seconds intervals elapsed since January 1, 1601 (UTC)
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// and copy it to a LARGE_INTEGER structure.
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GetSystemTimeAsFileTime(&ft);
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li.LowPart = ft.dwLowDateTime;
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li.HighPart = ft.dwHighDateTime;
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uint64_t ret = li.QuadPart;
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// Convert from file time to UNIX epoch time.
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ret -= 116444736000000000LL;
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// From 100 nano seconds (10^-7) to 1 millisecond (10^-3) intervals
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ret /= 10000;
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return ret;
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}
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#endif |