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48 lines
1.2 KiB
Nim
48 lines
1.2 KiB
Nim
#
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#
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# nAIO
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# (c) Copyright 2017 Eugene Kabanov
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#
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# See the file "LICENSE", included in this
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# distribution, for details about the copyright.
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#
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## This module implements cross-platform system timer with
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## milliseconds resolution.
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when defined(windows):
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from winlean import DWORD, getSystemTimeAsFileTime, FILETIME
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proc fastEpochTime*(): uint64 {.inline.} =
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var t: FILETIME
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getSystemTimeAsFileTime(t)
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result = ((uint64(t.dwHighDateTime) shl 32) or
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uint64(t.dwLowDateTime)) div 10_000
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elif defined(macosx):
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from posix import posix_gettimeofday, Timeval
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proc fastEpochTime*(): uint64 {.inline.} =
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var t: Timeval
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posix_gettimeofday(t)
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result = (a.tv_sec * 1_000 + a.tv_usec div 1_000)
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elif defined(posix):
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from posix import clock_gettime, Timespec, CLOCK_REALTIME
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proc fastEpochTime*(): uint64 {.inline.} =
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var t: Timespec
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discard clock_gettime(CLOCK_REALTIME, t)
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result = (uint64(t.tv_sec) * 1_000 + uint64(t.tv_nsec) div 1_000_000)
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elif defined(nimdoc):
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proc fastEpochTime*(): uint64
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## Returns system's timer in milliseconds.
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else:
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error("Sorry, your operation system is not yet supported!")
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