id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
5837	tss_dll: does not appear to allocate TLS storage at the proper time	noloader@…	Anthony Williams	"When a Windows process loads a DLL, DllMain will recieve DLL_PROCESS_ATTACH. According to MSDN process can use the opportunity to allocate thread storage [1]. Interestingly, on_process_enter() (and on_thread_enter()) does not perform the initialization. Note that on_process_enter() is the Boost routine for DLL_PROCESS_ATTACH; and on_thread_enter() is called for DLL_THREAD_ATTACH.

From tss_hooks.cpp:

{{{
extern ""C"" BOOST_THREAD_DECL void on_process_enter()
{
}
}}}

and

{{{
extern ""C"" BOOST_THREAD_DECL void on_thread_enter()
{
}
}}}

Even more bizarre, on_thread_exit() appears to allocate the thread local storage:

{{{
extern ""C"" BOOST_THREAD_DECL void on_thread_exit()
{
    // Initializing tls_key here ensures its proper visibility
    boost::call_once( init_tls_key, once_init_tls_key );

    // Get the exit handlers list for the current thread from tls.
    if( tls_key == invalid_tls_key )
    {
        return;
    }
    ...
}}}

Perhaps it would be a good idea to review the MSDN documentation, and perfom TLS initialization according to Microsoft recommendations.

[1] http://msdn.microsoft.com/en-us/library/ms682583(v=vs.85).aspx"	Bugs	closed	To Be Determined	thread	Boost 1.47.0	Problem	invalid	tss	noloader@…