[Gc] Re[2]: Patch for native support of long weakrefs

[Ivan Maidanski]

Hi Zach,

Some changes required:
1. we promised to allow to exclude this functionality if desired by GC_LONG_REFS_NOT_NEEDED (or similiar)
(for this, you could put GC_ASSERT(GC_ll_hashtbl...) and GC_push_all(GC_ll_hashtbl...) close to minimize number of ifndef GC_LONG_REFS_NOT_NEEDED, same for GC_register_long_link and GC_unregister_long_link)

2. GC_dump_finalization_links: should be STATIC instead of inline (we don't care about speed optimization of debugging code) and the argument should be pointer to const.
3. GC_register_disappearing_link_inner and GC_move_disappearing_link_inner should be STATIC (contrary to what I've said earlier, they are rather big for inlining - this is waste of memory)
4. In gc.h comments: according to the style, we use 2 spaces as a sentence delimiter:
     /* inaccessible.  An object becomes truly inaccessible  */

The rest seems to be ok.

Regards,
Ivan

19 11 2012 12:49:23 Zach Saw <zach.saw at gmail.com>:
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>Hi Ivan,
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>>Please merge https://github.com/ivmai/bdwgc/tree/add-long-weakref to your add-long-weakref branch and go on.
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>>About naming: I think GC_[un]register/move_disappearing_link_long name is long (and major part of it is common with GC_X_disappearing_link). I suggest GC_..._long_link instead. Any objections or other candidates?

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>I've added long link support.
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>https://github.com/zachsaw/bdwgc/compare/df392f3...4b32351 

>
>Zach
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