[ruby-core:55031] [ruby-trunk - Feature #3620] Add Queue, SIzedQueue and ConditionVariable implementations in C in addition to ruby ones

Issue #3620 has been updated by nobu (Nobuyoshi Nakada).


=begin
You can use (({rb_funcall2()})) instead here.
  - return rb_funcall(p->argv[0], rb_intern("sleep"), p->argc-1, p->argv+1);
  + return rb_funcall(p->argv[0], rb_intern("sleep"), p->argc-1, p->argv[1]); /* (2) */
=end
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Feature #3620: Add Queue, SIzedQueue and ConditionVariable implementations in C in addition to ruby ones
https://bugs.ruby-lang.org/issues/3620#change-39385

Author: panaggio (Ricardo Panaggio)
Status: Assigned
Priority: Normal
Assignee: ko1 (Koichi Sasada)
Category: ext
Target version: next minor


=begin
 Queue, SizedQueue and ConditionVariable are important synchronization primitives and are nowadays implemented in Ruby.
 
 Attached patch (initiated by myself and heavily enriched by Nobu) contains these sync primitives implemented in C, which makes them faster (see [1] for the benchmark's code):
 
 Rehearsal -------------------------------------------------
 Q#push          1.590000   0.010000   1.600000 (  1.605502)
 T#push          0.600000   0.010000   0.610000 (  0.630444)
 Q#pop           4.390000   0.000000   4.390000 (  4.389781)
 T#pop           0.580000   0.000000   0.580000 (  0.578918)
 Q#empty?        0.480000   0.000000   0.480000 (  0.484305)
 T#empty?        0.360000   0.000000   0.360000 (  0.358559)
 Q#clear         1.210000   0.000000   1.210000 (  1.214494)
 T#clear         0.600000   0.000000   0.600000 (  0.588611)
 Q#size          0.370000   0.000000   0.370000 (  0.365587)
 T#size          0.350000   0.000000   0.350000 (  0.356985)
 Q#num_waiting   0.380000   0.000000   0.380000 (  0.379199)
 T#num_waiting   0.370000   0.000000   0.370000 (  0.368075)
 --------------------------------------- total: 11.300000sec
 
 It has already been discussed on ruby-core (see ruby-core:31100).
 
 This patch is one of the deliverables of my RubySoC project (slot #17): "Improving Ruby's Synchronization Primitives and Core Libraries" [2,3]
 
 [1] http://github.com/panaggio/rubysoc-2010/blob/master/benchmarks/queue.rb
 [2] http://pastebin.com/viSnfqe6
 [3] http://rubysoc.org/projects
=end



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