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Implement zephyr urandom and monotime (#19142)

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* implement urandom for Zephyr

* add monotime on zephyr

Co-authored-by: Jaremy Creechley <jaremy.creechley@panthalassa.com>
This commit is contained in:
Jaremy Creechley 2021-11-14 03:49:30 -08:00 • committed by GitHub
commit 6976d18519
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2 changed files with 18 additions and 1 deletions
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7
lib/std/monotimes.nim
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@ -76,6 +76,10 @@ when defined(js):
elif defined(posix) and not defined(osx):
import posix
when defined(zephyr):
proc k_uptime_ticks(): int64 {.importc: "k_uptime_ticks", header: "<kernel.h>".}
proc k_ticks_to_ns_floor64(ticks: int64): int64 {.importc: "k_ticks_to_ns_floor64", header: "<kernel.h>".}
elif defined(windows):
proc QueryPerformanceCounter(res: var uint64) {.
importc: "QueryPerformanceCounter", stdcall, dynlib: "kernel32".}
@ -98,6 +102,9 @@ proc getMonoTime*(): MonoTime {.tags: [TimeEffect].} =
mach_timebase_info(machAbsoluteTimeFreq)
result = MonoTime(ticks: ticks * machAbsoluteTimeFreq.numer div
machAbsoluteTimeFreq.denom)
elif defined(zephyr):
let ticks = k_ticks_to_ns_floor64(k_uptime_ticks())
result = MonoTime(ticks: ticks)
elif defined(posix):
var ts: Timespec
discard clock_gettime(CLOCK_MONOTONIC, ts)