From: Joel VanderWerf <vjoel@...>
Date: 2008-03-16T05:21:10+09:00
Subject: Re: How to make net-ping thread safe?


Forgot to make the previous patch thread safe:

--- net/ping/icmp.rb.bck        2008-03-15 13:19:42.000000000 -0700
+++ net/ping/icmp.rb    2008-03-15 13:19:42.000000000 -0700
@@ -1,5 +1,6 @@
  $LOAD_PATH.unshift File.dirname(__FILE__)
  require 'ping'
+require 'thread'

  module Net
     class Ping::ICMP < Ping
@@ -38,8 +39,11 @@
        end

        @seq = 0
+      @seq_mutex = Mutex.new
        def self.next_seq
-        @seq = (@seq + 1) % 65536
+        @seq_mutex.synchronize do
+          @seq = (@seq + 1) % 65536
+        end
        end

        # Sets the number of bytes sent in the ping method.

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407