[macruby-changes] [3452] MacRuby/trunk/lib/dispatch/enumerable.rb
source_changes at macosforge.org
source_changes at macosforge.org
Mon Feb 8 15:05:07 PST 2010
Revision: 3452
http://trac.macosforge.org/projects/ruby/changeset/3452
Author: ernest.prabhakar at gmail.com
Date: 2010-02-08 15:05:07 -0800 (Mon, 08 Feb 2010)
Log Message:
-----------
Another attempt at mapreduce, using local variables
Modified Paths:
--------------
MacRuby/trunk/lib/dispatch/enumerable.rb
Modified: MacRuby/trunk/lib/dispatch/enumerable.rb
===================================================================
--- MacRuby/trunk/lib/dispatch/enumerable.rb 2010-02-08 23:04:57 UTC (rev 3451)
+++ MacRuby/trunk/lib/dispatch/enumerable.rb 2010-02-08 23:05:07 UTC (rev 3452)
@@ -31,22 +31,18 @@
# Parallel +collect+ plus +inject+
# Accumulates from +initial+ via +op+ (default = '+')
- def p_mapreduce(initial, op=:+, &block)
- raise ArgumentError if not initial.respond_to? op
+ def p_mapreduce(result, op=:+, &block)
+ raise ArgumentError if not result.respond_to? op
# Since exceptions from a Dispatch block act funky
- q = Dispatch.queue_for(initial)
- ivar = "@#{Dispatch.label_for(initial)}"
- p ivar
- self.instance_variable_set(ivar, initial) #is creating an ivar thread-safe?
+ q = Dispatch.queue_for(result)
self.p_each do |obj|
val = block.call(obj)
q.async do
- sum = self.instance_variable_get(ivar).send(op, val)
- self.instance_variable_set(ivar, sum)
+ result = result.send(op, val)
end
end
q.sync {}
- self.send(:remove_instance_variable, ivar)
+ result
end
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