[ruby/timeout] added the check for negative sec

https://github.com/ruby/timeout/commit/8e57887eee

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/timeout.rb b/lib/timeout.rb
index bf12f37382..c8c3d501b6 100644
--- a/lib/timeout.rb
+++ b/lib/timeout.rb
@@ -164,6 +164,7 @@ module Timeout
   # Timeout</tt> into your classes so they have a #timeout method, as well as
   # a module method, so you can call it directly as Timeout.timeout().
   def timeout(sec, klass = nil, message = nil, &block)   #:yield: +sec+
+    raise ArgumentError, "Timeout sec must be a positive number" unless sec.is_a?(Numeric) && sec >= 0
     return yield(sec) if sec == nil or sec.zero?
 
     message ||= "execution expired"