Use C idris2_time for all C-based backends

libs/base/System.idr

@@ -107,10 +107,10 @@ export
 system : HasIO io => String -> io Int
 system cmd = primIO (prim__system cmd)
 
-%foreign support "idris2_time"
-         "scheme:blodwen-time"
+%foreign "C:idris2_time, libidris2_support, idris2_support.h"
 prim__time : PrimIO Int
 
+||| Return the number of seconds since epoch.
 export
 time : HasIO io => io Integer
 time = pure $ cast !(primIO prim__time)

support/chez/support.ss

@@ -381,7 +381,6 @@
         (micro (mod s 1000000)))
        (sleep (make-time 'time-duration (* 1000 micro) sec))))
 
-(define (blodwen-time) (time-second (current-time)))
 (define (blodwen-clock-time-utc) (current-time 'time-utc))
 (define (blodwen-clock-time-monotonic) (current-time 'time-monotonic))
 (define (blodwen-clock-time-duration) (current-time 'time-duration))

support/gambit/support.scm

@@ -213,9 +213,6 @@
 (define blodwen-sleep thread-sleep!)
 (define (blodwen-usleep s) (thread-sleep! (/ s 1e6)))
 
-(define (blodwen-time)
-  (exact-floor (time->seconds (current-time))))
-
 
 (define (blodwen-arg-count)
   (length (command-line)))

support/racket/support.rkt

@@ -432,8 +432,6 @@
 (define (blodwen-sleep s) (sleep s))
 (define (blodwen-usleep us) (sleep (* 0.000001 us)))
 
-(define (blodwen-time) (current-seconds))
-
 (define (blodwen-clock-time-utc) (current-time 'time-utc))
 (define (blodwen-clock-time-monotonic) (current-time 'time-monotonic))
 (define (blodwen-clock-time-duration) (current-time 'time-duration))