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[%%import "config.h"]
open! Base
[%%ifdef JSC_ARCH_SIXTYFOUR]
external nanoseconds_since_unix_epoch_or_zero
: unit
-> Int63.t
= "time_now_nanoseconds_since_unix_epoch_or_zero"
[@@noalloc]
[%%else]
external nanoseconds_since_unix_epoch_or_zero
: unit
-> Int63.t
= "time_now_nanoseconds_since_unix_epoch_or_zero"
[%%endif]
[%%ifdef JSC_POSIX_TIMERS]
let[@cold] gettime_failed () = failwith "clock_gettime(CLOCK_REALTIME) failed"
[%%else]
let[@cold] gettime_failed () = failwith "gettimeofday failed"
[%%endif]
let nanoseconds_since_unix_epoch () =
let t = nanoseconds_since_unix_epoch_or_zero () in
if Int63.( <> ) t Int63.zero then t else gettime_failed ()
;;