Make compatible with ruby 1.8.6, 1.8.7, and ree

Gemfile

@@ -13,4 +13,5 @@ group :development do
   gem "rspec"
   gem "timecop"
   gem "webmock"
+  gem "SystemTimer", :platform => :mri_18
 end

Gemfile.lock

@@ -7,6 +7,7 @@ GIT
 GEM
   remote: http://rubygems.org/
   specs:
+    SystemTimer (1.2)
     addressable (2.2.5)
     bourne (1.0)
       mocha (= 0.9.8)
@@ -49,6 +50,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  SystemTimer
   bourne
   daemons (= 1.1.0)
   em-hiredis (= 0.1.0)

lib/daikon/monitor.rb

@@ -19,12 +19,13 @@ def self.reset
     end
 
     def self.pop
-      time, summary = self.summaries.first
+      time = self.summaries.keys.sort.first
+      summary = self.summaries[time]
       if summary.nil?
         summary = summary_hash
       end
       summary["start"] = summary["stop"] = Time.now
-      summary["keys"] = Hash[*summary["keys"].sort_by(&:last).reverse[0..99].flatten]
+      summary["keys"] = Hash[*summary["keys"].sort_by{|a| a.last}.reverse[0..99].flatten]
       yield(summary)
       summaries.delete(time) if time
     end

spec/client_spec.rb

@@ -73,7 +73,7 @@
     end
 
     WebMock.should have_requested(:post, summaries_url(server)).
-      with(:body => payload.to_json, :headers => headers)
+      with(:headers => headers) { |req| JSON.parse!(req.body) == payload }
   end
 end
 

spec/reactor_spec.rb

@@ -17,7 +17,7 @@
     times = []
     subject.on(:start_info) do
       times << Time.now
-      if times.count == 2
+      if times.length == 2
         EM.stop
         (times[1] - times[0]).should be_within(0.1).of(subject.info_interval)
       end
@@ -32,7 +32,7 @@
     times = []
     subject.on(:start_summary) do
       times << Time.now
-      if times.count == 2
+      if times.length == 2
         EM.stop
         (times[1] - times[0]).should be_within(0.1).of(subject.summary_interval)
       end