[Boost-bugs] [Boost C++ Libraries] #1958: thread_specific_ptr lacks support for NULL cleanup function

Subject: [Boost-bugs] [Boost C++ Libraries] #1958: thread_specific_ptr lacks support for NULL cleanup function
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-05-27 18:53:05

#1958: thread_specific_ptr lacks support for NULL cleanup function
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 Reporter:  Bryan Green <bryan.d.green_at_[hidden]>      |       Owner:  anthonyw
     Type:  Bugs                                      |      Status:  new     
Milestone:  Boost 1.36.0                              |   Component:  thread  
  Version:  Boost Development Trunk                   |    Severity:  Problem 
 Keywords:  cleanup_function tss thread_specific_ptr  |  
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 Passing a null pointer as the cleanup_function argument to the
 thread_specific_ptr constructor
 leads to a null dereference and a program crash.

 Use of a null cleanup function is well defined in the pthread API: it
 means that no cleanup is to
 be performed.  Boost::Thread currently lacks this mode, requiring the
 programmer to define a specialized empty function any time a
 thread_specific_ptr is created where no cleanup is desired.

 I'm filing this as a bug, since it represents a common practice, well
 supported and documented in the pthread API, which in boost leads to a
 program crash.

 I'm attaching a patch representing a potential implementation of NULL-
 cleanup-function support.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1958>
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