added object lifetimes function.

README

@@ -6,11 +6,15 @@ GC::Profiler module was added at ruby1.9.1.
 == Install
 
   > git clone git://github.com/authorNari/gc_profiler_on_graph.git vendor/plugins/gc_profiler_on_graph
-  > ruby script/runner vendor/plugins/gc_profiler_on_graph
+  > ruby script/runner vendor/plugins/gc_profiler_on_graph/install.rb
 
 If you use Rails 2.1 or later, you can install with this command.
 
   > ruby script/plugin install git://github.com/authorNari/gc_profiler_on_graph.git
 
+And please wirtten to layout/xxxx.html.erb
+
+  <%= javascript_include_tag :all %>
+
 = Author
 Nakamura Narirhiro<authorNari at gmail.com>

install.rb

@@ -1,10 +1,8 @@
 # Copy html5jp JavaScript codes to public/javascripts.
 
-Dir.chdir(File.join(RAILS_ROOT, 'vendor', 'plugins', 'html5jp_graphs')) do
-  dest_dir = File.join(RAILS_ROOT, 'public', 'javascripts')
-  FileUtils.mkdirs(dest_dir) unless File.exist?(dest_dir)
+dest_dir = File.join(RAILS_ROOT, 'public', 'javascripts')
+FileUtils.mkdirs(dest_dir) unless File.exist?(dest_dir)
 
-  Dir.glob("html5jp/html5jp/**/*.js").each do |path|
-    FileUtils.cp(path, dest_dir) unless File.exist?(File.join(dest_dir, File.basename(path)))
-  end
+Dir.glob(File.join(RAILS_ROOT, File.dirname(__FILE__), "html5jp/html5jp/**/*.js")).each do |path|
+  FileUtils.cp(path, dest_dir) unless File.exist?(File.join(dest_dir, File.basename(path)))
 end

lib/gc_profiler_on_graph.rb

@@ -20,37 +20,23 @@ def self.insert_graphs
       script_html = <<-HTML
       <script type="text/javascript">
       window.onload = function() {
-        var heap_graph = new html5jp.graph.vbar("heap_vbar");
-        if(!heap_graph ) { return; }
-
-        #{display_draw_heap_params(profile)}
-
-        heap_graph.draw(items, params);
-
-
-        var gctime_graph = new html5jp.graph.line("gctime_line");
-        if(!gctime_graph ) { return; }
-
-        #{display_draw_gctime_params(profile)}
-
-        gctime_graph.draw(items, params);
-
-        var stats_graph = new html5jp.graph.vbar("stats_vbar");
-        if(!stats_graph ) { return; }
-
-        #{display_draw_heap_stats_params}
-
-        stats_graph.draw(items, params);
+        #{template_draw_graph(:heap_vbar, :vbar){ display_draw_heap_params(profile) }}
+        #{template_draw_graph(:gctime_line, :line){ display_draw_gctime_params(profile) }}
+        #{template_draw_graph(:stats_vbar, :vbar){ display_draw_heap_stats_params }}
+        #{template_draw_graph(:lifetime_vbar, :vbar){ display_draw_lifetimes } if ObjectSpace.respond_to?(:count_object_lifetimes)}
       };     
       </script>
       HTML
       canvas_html = <<-HTML
       <table><tr>
       <td colspan="3"><div><canvas width="1300" height="400" id="stats_vbar"></canvas></div></td>
       </tr><tr>
+      <td colspan="3"><div><canvas width="1300" height="400" id="lifetime_vbar"></canvas></div></td>
+      </tr><tr>
       <td><div><canvas width="500" height="400" id="heap_vbar"></canvas></div></td>
       <td><div><canvas width="500" height="400" id="gctime_line"></canvas></div></td>
       <td></td>
+      </tr><tr>
       </tr></table>
       HTML
       insert_text :before, /<\/head>/i, script_html
@@ -95,6 +81,13 @@ def self.display_draw_heap_stats_params
       res += template_xy(%Q!['type', "#{stats.map{|k, v| k}.join('", "')}"]!, "['object count']")
     end
 
+    def self.display_draw_lifetimes
+      res = []
+      stats = ObjectSpace.count_object_lifetimes.reject!{|k, v| %w(TOTAL FREE).include? k.to_s }.sort_by{|e| e[1]}
+      res = template_items "['lifetime', #{stats.map{|k,v| v}.join(', ')}]"
+      res += template_xy(%Q!['type', "#{stats.map{|k, v| k}.join('", "')}"]!, "['life time']")
+    end
+
     def self.template_items(cols)
       res = <<-HTML
       var items = [
@@ -112,6 +105,18 @@ def self.template_xy(x, y)
       HTML
     end
 
+    def self.template_draw_graph(id, type, &block)
+      graph_var = "#{id}_graph"
+      res = <<-HTML
+      var #{graph_var} = new html5jp.graph.#{type}("#{id}");
+      if(!#{graph_var} ) { return; }
+
+      #{block.call}
+
+      #{graph_var}.draw(items, params);
+      HTML
+    end
+
     def self.insert_text(position, pattern, new_text)
       index = case pattern
               when Regexp