[Groonga-commit] droonga/droonga-engine at 12a6a15 [master] Implement system.absorb-data without Fiber and timer.

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YUKI Hiroshi null+****@clear*****
Tue Apr 14 21:38:54 JST 2015


YUKI Hiroshi	2015-04-14 21:38:54 +0900 (Tue, 14 Apr 2015)

  New Revision: 12a6a159c81166320dfda24638dd1e278bf037de
  https://github.com/droonga/droonga-engine/commit/12a6a159c81166320dfda24638dd1e278bf037de

  Message:
    Implement system.absorb-data without Fiber and timer.
    
    They are not required because Drndump::Dumper is already asynchronous.

  Modified files:
    lib/droonga/plugin/async_command.rb
    lib/droonga/plugins/dump.rb
    lib/droonga/plugins/system/absorb_data.rb

  Modified: lib/droonga/plugin/async_command.rb (+10 -38)
===================================================================
--- lib/droonga/plugin/async_command.rb    2015-04-14 21:07:26 +0900 (3860bde)
+++ lib/droonga/plugin/async_command.rb    2015-04-14 21:38:54 +0900 (5d22511)
@@ -93,36 +93,9 @@ module Droonga
         end
 
         def start
-          setup_forward_data
-
-          forward("#{prefix}.start")
-
-          runner = Fiber.new do
-            handle
-          end
-
-          timer = Coolio::TimerWatcher.new(0.1, true)
-          timer.on_timer do
-            if runner.alive?
-              begin
-                runner.resume
-              rescue
-                timer.detach
-                logger.trace("start: watcher detached on unexpected exception",
-                             :watcher => timer)
-                logger.exception(error_message, $!)
-                error(error_name, error_message)
-              end
-            else
-              timer.detach
-              logger.trace("start: watcher detached on unexpected exception",
-                           :watcher => timer)
-            end
-          end
-
-          @loop.attach(timer)
-          logger.trace("start: new watcher attached",
-                       :watcher => timer)
+          #XXX override me!!
+          on_start
+          on_finish
         end
 
         private
@@ -130,9 +103,14 @@ module Droonga
           "" #XXX override me!!
         end
 
-        def handle
+        def on_start
+          setup_forward_data
+          forward("#{prefix}.start")
+        end
+
+        def on_finish
           #XXX override me!!
-          forward("#{prefix}.end") #XXX you must forward "end" message by self!
+          forward("#{prefix}.end")
         end
 
         def setup_forward_data
@@ -141,8 +119,6 @@ module Droonga
             "dataset"   => @request.dataset,
           }
           @forward_to =****@reque*****_to
-          @n_forwarded_messages = 0
-          @messages_per_100msec =****@reque*****_per_seconds / 10
         end
 
         def error_name
@@ -175,10 +151,6 @@ module Droonga
           @messenger.forward(forward_message,
                              "to"   => @forward_to,
                              "type" => type)
-
-          @n_forwarded_messages += 1
-          @n_forwarded_messages %= @messages_per_100msec
-          Fiber.yield if @n_forwarded_messages.zero?
         end
 
         def log_tag

  Modified: lib/droonga/plugins/dump.rb (+47 -7)
===================================================================
--- lib/droonga/plugins/dump.rb    2015-04-14 21:07:26 +0900 (98706d3)
+++ lib/droonga/plugins/dump.rb    2015-04-14 21:38:54 +0900 (614a4cf)
@@ -50,6 +50,40 @@ module Droonga
           super(loop, messenger, request)
         end
 
+        def start
+          on_start
+
+          runner = Fiber.new do
+            dump_schema
+            dump_records
+            dump_indexes
+            on_finish
+          end
+
+          timer = Coolio::TimerWatcher.new(0.1, true)
+          timer.on_timer do
+            if runner.alive?
+              begin
+                runner.resume
+              rescue
+                timer.detach
+                logger.trace("start: watcher detached on unexpected exception",
+                             :watcher => timer)
+                logger.exception(error_message, $!)
+                error(error_name, error_message)
+              end
+            else
+              timer.detach
+              logger.trace("start: watcher detached on unexpected exception",
+                           :watcher => timer)
+            end
+          end
+
+          @loop.attach(timer)
+          logger.trace("start: new watcher attached",
+                       :watcher => timer)
+        end
+
         private
         def prefix
           "dump"
@@ -63,13 +97,6 @@ module Droonga
           "failed to dump"
         end
 
-        def handle
-          dump_schema
-          dump_records
-          dump_indexes
-          forward("#{prefix}.end")
-        end
-
         def dump_schema
           reference_tables = []
           each_table do |table|
@@ -246,6 +273,19 @@ module Droonga
           end
         end
 
+        def setup_forward_data
+          super
+          @n_forwarded_messages = 0
+          @messages_per_100msec =****@reque*****_per_seconds / 10
+        end
+
+        def forward(type, body=nil)
+          super
+          @n_forwarded_messages += 1
+          @n_forwarded_messages %= @messages_per_100msec
+          Fiber.yield if @n_forwarded_messages.zero?
+        end
+
         def log_tag
           "[#{Process.ppid}] dumper"
         end

  Modified: lib/droonga/plugins/system/absorb_data.rb (+16 -14)
===================================================================
--- lib/droonga/plugins/system/absorb_data.rb    2015-04-14 21:07:26 +0900 (293c30e)
+++ lib/droonga/plugins/system/absorb_data.rb    2015-04-14 21:38:54 +0900 (44fc8fd)
@@ -42,20 +42,9 @@ module Droonga
           class EmptyBody < StandardError
           end
 
-          private
-          def prefix
-            "system.absorb-data"
-          end
+          def start
+            on_start
 
-          def error_name
-            "AbsorbFailure"
-          end
-
-          def error_message
-            "failed to absorb data"
-          end
-
-          def handle
             @dumper_error_message = nil
 
             dumper = Drndump::Dumper.new(dumper_params)
@@ -96,6 +85,19 @@ module Droonga
             on_finish if @dumper_error_message
           end
 
+          private
+          def prefix
+            "system.absorb-data"
+          end
+
+          def error_name
+            "AbsorbFailure"
+          end
+
+          def error_message
+            "failed to absorb data"
+          end
+
           def on_finish
             begin
               if @dumper_error_message
@@ -108,7 +110,7 @@ module Droonga
               @dumper_error_message = exception.to_s
               error(error_name, @dumper_error_message)
             end
-            forward("#{prefix}.end")
+            super
           end
 
           def dumper_params
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