[boost] Re: Boost.Thread : Memory leakage with thread local storage?

From: Michael Glassford (glassfordm_at_[hidden])
Date: 2004-01-19 17:42:39

Roland wrote:
> The thread local storage leaks memory on Windows/MSVC6.
>
> Is this a know issue?
>
> Small example (the tss.cpp example amended by leak debugging
> functions):
>

<snipped example>

First of all, if I understand correctly, in your example you put the
_CrtDumpMemoryLeaks() call too early: since it simply lists all blocks
that are allocated at the time when it is called, it should normally
be called at a point where all memory ought to have been freed; so the
beginning of the main() function seems to be the wrong place for it. A
better way would be the end of main() (though this is still too early
in that static objects haven't been destroyed and released their
memory yet); perhaps even better is to call

    CrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF |
_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG))

which sets a flag telling the memory allocator to check for leaks on
exit. However, even with these methods I still see "leaks" reported. I
have yet to determine which of them are real problems and which are
valid behavior, but will look into it.

Mike