[boost] [flyweight][#3658] Dependency on static initialization/destruction order

Subject: [boost] [flyweight][#3658] Dependency on static initialization/destruction order
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2009-11-28 08:22:16

Hi,

I've created the ticket #3658 [1] on the flyweights library. The ticket 
is about Boost.Flyweight depending on the static 
initialization/destruction order, which can lead to application crashes 
in some cases.

The library does provide certain tools to work around the problem [2], 
but these tools are only usable in the most obvious cases and do not 
solve the problem in its root.

What I have proposed in the ticket is to implement reference counting in 
the flyweights, so that the flyweight value is only destroyed when no 
flyweight handles refer to it. AFAIK, Boost.Flyweight already has 
reference counting, so the work is only to shift value owning from the 
holder to the flyweights.

Comments are welcome.

[1] https://svn.boost.org/trac/boost/ticket/3658
[2] 
http://www.boost.org/libs/flyweight/doc/tutorial/technical.html#static_init