Re: [Boost-bugs] [Boost C++ Libraries] #3349: ordered_malloc not always keeps the free list ordered.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #3349: ordered_malloc not always keeps the free list ordered.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-08-17 21:56:29

#3349: ordered_malloc not always keeps the free list ordered.
--------------------------------------------------+-------------------------
 Reporter:  Xiaohan Wang <wangxiaohan@…>          |       Owner:  cnewbold
     Type:  Bugs                                  |      Status:  new     
Milestone:  Boost 1.40.0                          |   Component:  pool    
  Version:  Boost 1.39.0                          |    Severity:  Problem 
 Keywords:  pool, ordered_malloc, add_block       |  
--------------------------------------------------+-------------------------

Comment(by Xiaohan Wang <wangxiaohan@…>):

 BTW, I wrote a simple program to show this.  The variable
 "any_memory_released" is false after the release because the free list is
 out of order.  If we change the "add_block" to "add_ordered_block" then
 "any_memory_released" is true.

 {{{
 int main()
 {
     pool<> p(256, 4);

     void* pBlock1 = p.ordered_malloc( 1 );
     void* pBlock2 = p.ordered_malloc( 4 );

     p.ordered_free( pBlock1 );

     bool any_memory_released = p.release_memory();

     cout << "Any memory released? " << any_memory_released << endl;
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3349#comment:1>
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