mt_allocator patch for allocate.

[Dhruv Matani <dhruvbird at gmx dot net>]

Hello,
	This patch re-does the allocate function loop which adds blocks from
the global free list to the current one.





-- 
        -Dhruv Matani.
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Attachment: ChangeLog
Description: Text document

*** mt_allocator.h	2004-04-06 04:16:04.000000000 +0530
--- /home/dhruv/projects/new_libstdc++-v3/include/ext/mt_allocator.h	2004-04-11 23:19:41.000000000 +0530
*************** namespace __gnu_cxx
*** 345,362 ****
  		}
  	      else
  		{
! 		  while (__bin._M_first[0] != NULL && __block_count > 0)
! 		    {
! 		      _Block_record* __tmp = __bin._M_first[0]->_M_next;
! 		      __block = __bin._M_first[0];
  
! 		      __block->_M_next = __bin._M_first[__thread_id];
! 		      __bin._M_first[__thread_id] = __block;		      
! 		      
! 		      ++__bin._M_free[__thread_id];
! 		      __bin._M_first[0] = __tmp;
  		      --__block_count;
  		    }
  		  __gthread_mutex_unlock(__bin._M_mutex);
  		}
  	    }
--- 345,368 ----
  		}
  	      else
  		{
! 		  // At least 1 block exists.
! 		  _Block_record* __first = __bin._M_first[0];
! 		  _Block_record* __tmp = __first;
! 		  size_t __added = __block_count;
! 		  --__block_count;
  
! 		  while (__tmp->_M_next && __block_count > 0)
! 		    {
! 		      __tmp = __tmp->_M_next;
  		      --__block_count;
  		    }
+ 		  
+ 		  __added = __added - __block_count;
+ 		  __bin._M_first[0] = __tmp->_M_next;
+ 		  __tmp->_M_next = __bin._M_first[__thread_id];
+ 		  __bin._M_free[__thread_id] += __added;
+ 		  __bin._M_first[__thread_id] = __first;
+ 
  		  __gthread_mutex_unlock(__bin._M_mutex);
  		}
  	    }