[boost] Re: [thread] Why is there a restriction for the runtime libraries?

From: Stefan Slapeta (stefan_at_[hidden])
Date: 2004-12-06 06:09:10

Roland Schwarz wrote:

> Have a look at the thread on the users list:

Which thread?

> Re: [Boost-users] Re: Memory leak reported using threads library
> 
> Basically because:
> #if (defined(_DLL) || defined(_RTLDLL)) && defined(BOOST_DYN_LINK)
> #  define BOOST_LIB_PREFIX
> #elif defined(BOOST_DYN_LINK)
> #  error "Mixing a dll boost library with a static runtime is a really 
> bad idea..."
> #else
> #  define BOOST_LIB_PREFIX "lib"
> #endif
> 

This doesn't explain why one shouldn't use a shared rt with the static 
boost.thread lib! [IMO there got some things mixed up.]
IIRC the code above is only considered when there is no static TSS 
cleanup possible for a certain compiler, no?

> and
> Peter Dimov wrote:
> 
>> It works as long as you don' allocate in one and delete in the other. 
>> C-style interfaces are fine, but passing a std::string from the EXE to 
>> the DLL (or vice versa) will fail. shared_ptr will work, though :-) 
>> unless you unload the DLL that has created it, of course. Deleting an 
>> object with a virtual destructor works, too.
> 

AFAIK this is a common (DLL) problem and not specific to the thread library.

Stefan