From c41e0bdbe32f1f08951aef6e746265775b1ecba8 Mon Sep 17 00:00:00 2001 From: GrundleTrundle Date: Sat, 21 Feb 2015 14:57:07 -0500 Subject: [PATCH] Changed nimprof.hook() to handle uninitialized t0 It's unlikely, but possible for the conversion to nanoseconds to overflow if QueryPerformanceCounter() returns a large enough timestamp. This change avoids that, at the cost of always taking a sample the first time through when t0 == 0. --- lib/pure/nimprof.nim | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/pure/nimprof.nim b/lib/pure/nimprof.nim index 3598cdd3ad..cce2a20ae8 100644 --- a/lib/pure/nimprof.nim +++ b/lib/pure/nimprof.nim @@ -132,7 +132,7 @@ else: proc hook(st: TStackTrace) {.nimcall.} = if interval == 0: hookAux(st, 1) - elif getTicks() - t0 > interval: + elif int64(t0) == 0 or getTicks() - t0 > interval: hookAux(st, 1) t0 = getTicks()