# 1000 threads, one mutex

require 'thread'
m = Mutex.new
r = 0
max = 2000
(1..max).map{
  Thread.new{
    i = 0
    while i<max
      i += 1
      m.synchronize{
        r += 1
      }
    end
  }
}.each{|e|
  e.join
}
raise r.to_s if r != max * max
>
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<div class='path'>path: <a href='/ruby.git/log/?id=f9eb2515a3221cced611b4de971b72a78a7a566f'>root</a>/<a href='/ruby.git/log/tool?id=f9eb2515a3221cced611b4de971b72a78a7a566f'>tool</a>/<a href='/ruby.git/log/tool/update-NEWS-refs.rb?id=f9eb2515a3221cced611b4de971b72a78a7a566f'>update-NEWS-refs.rb</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/ruby.git/log/tool/update-NEWS-refs.rb?id=f9eb2515a3221cced611b4de971b72a78a7a566f&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-12-21 20:48:51 +0900'>2022-12-21</span></td><td><a href='/ruby.git/commit/tool/update-NEWS-refs.rb?id=befc99c00813568973a6330b2101e27184aab509'>[DOC] tool/update-NEWS-refs.rb: Align footnotes</a></td><td>Nobuyoshi Nakada</td></tr>
<tr><td><span title='2022-12-21 20:48:51 +0900'>2022-12-21</span></td><td><a href='/ruby.git/commit/tool/update-NEWS-refs.rb?id=c7c006cc68573cea356253cb1cc2c428d83fdf6c'>[DOC] tool/update-NEWS-refs.rb: Remove extra brackets</a></td><td>Nobuyoshi Nakada</td></tr>
<tr><td><span title='2022-12-19 14:48:18 +0900'>2022-12-19</span></td><td><a href='/ruby.git/commit/tool/update-NEWS-refs.rb?id=2605ff79aa84a635d135c5892339483e337bbd03'>tool/update-NEWS-refs.rb: Accept non-redmine url links</a></td><td>Yusuke Endoh</td></tr>
<tr><td><span title='2022-12-16 02:21:50 +0900'>2022-12-16</span></td><td><a href='/ruby.git/commit/tool/update-NEWS-refs.rb?id=b9ea83fc1c95dba0f5548e6bd1b2fa40c6e65e2d'>Update NEWS.md</a></td><td>Yusuke Endoh</td></tr>
<tr><td><span title='2022-12-10 19:01:29 +0900'>2022-12-10</span></td><td><a href='/ruby.git/commit/tool/update-NEWS-refs.rb?id=0645c8b3c1f7448d88c6fe6a4ebbd7b3a091c042'>[DOC] Fix update-NEWS-refs.rb</a></td><td>Nobuyoshi Nakada</td></tr>
<tr><td><span title='2022-12-07 12:32:29 +0900'>2022-12-07</span></td><td><a href='/ruby.git/commit/tool/update-NEWS-refs.rb?id=bcd8b2f00aef8fdaa54f1d76ca841ae8d10e5e0f'>NEWS.md: Added some missing features</a></td><td>Yusuke Endoh</td></tr>