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[std/times]getTime now uses high resolution API on windows (#17901)

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flywind 2021-06-24 03:33:19 +08:00 • committed by GitHub
commit 496bd790e1
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2 changed files with 6 additions and 2 deletions
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5
lib/pure/times.nim
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@ -880,6 +880,7 @@ since((1, 1)):
export fromUnixFloat
export toUnixFloat
proc fromWinTime*(win: int64): Time =
## Convert a Windows file time (100-nanosecond intervals since
## `1601-01-01T00:00:00Z`) to a `Time`.
@ -912,7 +913,7 @@ proc getTime*(): Time {.tags: [TimeEffect], benign.} =
result = initTime(ts.tv_sec.int64, ts.tv_nsec.int)
elif defined(windows):
var f {.noinit.}: FILETIME
getSystemTimeAsFileTime(f)
getSystemTimePreciseAsFileTime(f)
result = fromWinTime(rdFileTime(f))
proc `-`*(a, b: Time): Duration {.operator, extern: "ntDiffTime".} =
@ -2595,7 +2596,7 @@ proc epochTime*(): float {.tags: [TimeEffect].} =
toBiggestFloat(ts.tv_nsec.int64) / 1_000_000_000
elif defined(windows):
var f {.noinit.}: winlean.FILETIME
getSystemTimeAsFileTime(f)
getSystemTimePreciseAsFileTime(f)
var i64 = rdFileTime(f) - epochDiff
var secs = i64 div rateDiff
var subsecs = i64 mod rateDiff

3
lib/windows/winlean.nim
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@ -928,6 +928,9 @@ proc getProcessTimes*(hProcess: Handle; lpCreationTime, lpExitTime,
lpKernelTime, lpUserTime: var FILETIME): WINBOOL {.stdcall,
dynlib: "kernel32", importc: "GetProcessTimes".}
proc getSystemTimePreciseAsFileTime*(lpSystemTimeAsFileTime: var FILETIME) {.
importc: "GetSystemTimePreciseAsFileTime", dynlib: "kernel32", stdcall, sideEffect.}
type inet_ntop_proc = proc(family: cint, paddr: pointer, pStringBuffer: cstring,
stringBufSize: int32): cstring {.gcsafe, stdcall, tags: [].}