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Add link to Hans Boehm's Finalization paper

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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10200 626c5289-ae23-0410-ae9c-e8d60b6d4f22
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William S Fulton 2008-01-12 22:33:14 +00:00
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@ -2675,8 +2675,8 @@ By default each proxy class has a <tt>delete()</tt> and a <tt>finalize()</tt> me
The <tt>finalize()</tt> method calls <tt>delete()</tt> which frees any malloc'd memory for wrapped C structs or calls the C++ class destructors.
The idea is for <tt>delete()</tt> to be called when you have finished with the C/C++ object.
Ideally you need not call <tt>delete()</tt>, but rather leave it to the garbage collector to call it from the finalizer.
The unfortunate thing is that Sun, in their wisdom, do not guarantee that the finalizers will be called.
When a program exits, the garbage collector does not always call the finalizers.
When a program exits, the garbage collector does not guarantee to call all finalizers.
An insight into the reasoning behind this can be obtained from <a href="http://www.hpl.hp.com/techreports/2002/HPL-2002-335.html">Hans Boehm's Destructors, Finalizers, and Synchronization</a> paper.
Depending on what the finalizers do and which operating system you use, this may or may not be a problem.
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