From cef97539b2928e72eb7b87bd9d187e07d89d01fb Mon Sep 17 00:00:00 2001
From: dtfinch <david@mytsoftware.com>
Date: Sun, 16 Mar 2014 11:57:43 -0700
Subject: [PATCH] Reduce cpu usage

Before, it would max out a cpu core at 100% while waiting (undesirable if what it's waiting on needs the full cpu). Adding a 1ms sleep reduced its usage to about 1% in my case.
---
 src/waitpid.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/waitpid.cc b/src/waitpid.cc
index 6cc76e3..0123749 100644
--- a/src/waitpid.cc
+++ b/src/waitpid.cc
@@ -16,6 +16,7 @@ static Handle<Value> Waitpid(const Arguments& args) {
     child = args[0]->Int32Value();
 
     do {
+      usleep(1000);
       r = waitpid(child, &status, WNOHANG);
     } while (r != -1);