Changeset 280

Timestamp:

12/16/07 04:16:04 (8 months ago)

Author:

gethema..@gmail.com

Message:

check in fixes to README about thread pools

Files:

• trunk/README (modified) (2 diffs)
• trunk/script/bdrb_test_helper.rb (modified) (1 diff)
• trunk/server/meta_worker.rb (modified) (2 diffs)

trunk/README

@@ -332 +332 @@
-
-
-
+ :
-
-  Remember BackgrounDRb follows event model of network programming, but sad truth of life is
-  not all networking libraries follow this model and hence they make use of blocking IO and threads.
-ut you need not fear, B
+
-  which are internally managed by BackgrounDRb thread pool.
-
-"thread_pool" which can be used to run task in threads
++thread_pool+ which can be used to run task in a thread
-
-    thread_pool.defer(wiki_scrap_url) { |wiki_url| scrap_wikipedia(wiki_url) }
-
-scrap_wikipedia()
++scrap_wikipedia+
-
-  WARNING: You shouldn't try to use +register_status+ method from within the block supplied to +defer+. Because, if you do that,
@@ -387 +387 @@
-   end
-
+  All above helper file does is that it stubs out, relevant worker methods,
+  which really need network IO. There can be methods added, which aren't
+  stubbed, for all such methods you are encouraged to stub them and send
+  the patch to the backgroundrb mailing list.
+
-
-

trunk/script/bdrb_test_helper.rb

@@ -1 @@
-join(File.dirname(__FILE__) + "/../config/environment")
+dirname(__FILE__) + '/../test_helper'
-WORKER_ROOT = RAILS_ROOT + "/lib/workers"
-$LOAD_PATH.unshift(WORKER_ROOT)

trunk/server/meta_worker.rb

@@ -37 +37 @@
-    # can be used to make a call in threaded manner
-    # passed block runs in a thread from thread pool
+    # for example in a worker method you can do:
-    #   def fetch_url(url)
-    #     puts "fetching url #{url}"
@@ -52 +53 @@
-    # you can invoke above method from rails as:
-    #   MiddleMan.ask_work(:worker => :rss_worker, :worker_method => :fetch_url, :data => "www.example.com")
+    # assuming method is defined in rss_worker
-
-    def defer(*args,&block)