lib/socketry/timeout.rb in socketry-0.2.0 vs lib/socketry/timeout.rb in socketry-0.3.0

@@ -42,9 +42,11 @@
     # @return [Float] deadline (relative to #lifetime) at which the timeout is reached
     # @raise [Socketry::InternalError] if timeout is already set
     def set_timeout(timeout)
       raise Socketry::InternalError, "deadline already set" if @deadline
       return unless timeout
+      raise Socketry::TimeoutError, "time expired" if timeout < 0
+
       @deadline = lifetime + timeout
     end
 
     # Clear an already-set timeout
     #