Re: [Boost-bugs] [Boost C++ Libraries] #2361: thread_specific_ptr: nature of the key, complexity and rationale

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #2361: thread_specific_ptr: nature of the key, complexity and rationale
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-09-18 20:41:10

#2361: thread_specific_ptr: nature of the key, complexity and rationale
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 Reporter:  vicente.botet@…           |       Owner:  anthonyw      
     Type:  Feature Requests          |      Status:  new           
Milestone:  Boost 1.37.0              |   Component:  thread        
  Version:  Boost 1.36.0              |    Severity:  Not Applicable
 Keywords:  thread_specific_ptr       |  
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Comment(by andysem):

 FWIW, I attached the patch against branches/release that restores
 constant-time complexity of thread_specific_ptr, instead of linear on the
 number of pointers. This essentially restores the behavior that was there
 in previous Boost versions (1.33, for sure). The patch also fixes a couple
 of other issues: calling cleanup function on NULL pointers and releasing
 cleanup function on pointer destruction.

 I ran tests on Linux (GCC 4.3) and Windows (MSVC 9) with this patch and it
 looked fine.

 Anthony, I know you're working in a different direction in trunk, thus I
 realise that this patch is unlikely to be applied to the mainline.
 However, I'd like to encourage you to provide constant-time complexity of
 TSS, like it was before Boost.Thread rewrite.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2361#comment:1>
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