From d356c37185acdb7dec1feff5454209612e9ea9ad Mon Sep 17 00:00:00 2001
From: Dmitriy Fomichev <xomachiner@gmail.com>
Date: Wed, 11 Jan 2017 13:01:03 +0400
Subject: [PATCH] Workaround for the high cpu usage issue in coroutines on
 linux (#5186)

Fixes high cpu usage when all coroutines are asleep
---
 lib/pure/coro.nim | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/pure/coro.nim b/lib/pure/coro.nim
index 2a81b73173..0373708d09 100644
--- a/lib/pure/coro.nim
+++ b/lib/pure/coro.nim
@@ -66,14 +66,14 @@ proc run*() =
   ## Starts main event loop which exits when all coroutines exit. Calling this proc
   ## starts execution of first coroutine.
   var node = coroutines.head
-  var minDelay: float = 0
+  var minDelay: int = 0 # in milliseconds
   var frame: PFrame
   while node != nil:
     var coro = node.value
     current = coro
-    os.sleep(int(minDelay * 1000))
+    os.sleep(minDelay)
 
-    var remaining = coro.sleepTime - (epochTime() - coro.lastRun);
+    var remaining = int((coro.sleepTime - (epochTime() - coro.lastRun)) * 1000)
     if remaining <= 0:
       remaining = 0
       let res = setjmp(mainCtx)