From 94b120fe7558f1b0dac644e096d8addf0e7f720a Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 3 Jun 2013 02:37:34 +0000
Subject: add some rdoc

* add reference to spawn to fork
* add an example which runs ruby

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41043 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 process.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'process.c')

diff --git a/process.c b/process.c
index 40ecfa6e2f..4ab1f647e9 100644
--- a/process.c
+++ b/process.c
@@ -3462,6 +3462,9 @@ rb_fork_ruby(int *status)
  *  fork doesn't copy other threads.
  *
  *  If fork is not usable, Process.respond_to?(:fork) returns false.
+ *
+ *  Note that fork(2) is not avaiable on some platforms like Windows and NetBSD 4.
+ *  Therefore you should use spawn() instead of fork().
  */
 
 static VALUE
@@ -3819,6 +3822,9 @@ rb_f_system(int argc, VALUE *argv)
  *    pid = spawn("tar xf ruby-2.0.0-p195.tar.bz2")
  *    Process.wait pid
  *
+ *    pid = spawn(RbConfig.ruby, "-eputs'Hello, world!'")
+ *    Process.wait pid
+ *
  *  This method is similar to Kernel#system but it doesn't wait for the command
  *  to finish.
  *
-- 
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