From 2a658c64d8c24ad4a0944e01ba3e005bfb12534f Mon Sep 17 00:00:00 2001
From: lit <litlighilit@foxmail.com>
Date: Tue, 18 Jun 2024 23:39:34 +0800
Subject: [PATCH] fixes #23732, os.sleep(-1) now returns immediately (#23734)

fixes #23732
---
 lib/pure/os.nim | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/pure/os.nim b/lib/pure/os.nim
index 6a7b4af1b25d..78ebb1c88aa2 100644
--- a/lib/pure/os.nim
+++ b/lib/pure/os.nim
@@ -692,7 +692,10 @@ proc getAppDir*(): string {.rtl, extern: "nos$1", tags: [ReadIOEffect], noWeirdT
 
 proc sleep*(milsecs: int) {.rtl, extern: "nos$1", tags: [TimeEffect], noWeirdTarget.} =
   ## Sleeps `milsecs` milliseconds.
+  ## A negative `milsecs` causes sleep to return immediately.
   when defined(windows):
+    if milsecs < 0:
+      return  # fixes #23732
     winlean.sleep(int32(milsecs))
   else:
     var a, b: Timespec