Re: Thread - problem (tss.cpp under MSVC++6)

From: bill_kempf (williamkempf_at_[hidden])
Date: 2002-02-18 10:09:11

--- In boost_at_y..., "ajp_m" <a.maclean_at_a...> wrote:
> A colleague of mine found the problem (many thanks Mike!).
> 
> I did not compile the thread library as a DLL (silly me!). 
> Consequently, PROCESS_ATTACH in threadmon.cpp was not allocating 
the 
> key!
> 
> i/e. in this section of code:
> BOOL APIENTRY DllMain(HANDLE module, DWORD reason, LPVOID)
> {
>     switch (reason)
>     {
>         case DLL_PROCESS_ATTACH:
>             InitializeCriticalSection(&cs);
>             key = TlsAlloc();
>             break;
> ...
> 
> Of course this begs the question: 
> Is it possible to modify the code so that if it is not compiled as 
a 
> DLL the code will still function correctly? 

The actual build process compiles most of the library as a static 
link library, but the threadmon stuff has to be in a DLL, 
unfortunately.  This is a consequence of the Win32 MT design where 
DllMain() is the only mechanism that allows you to cleanup thread 
resources.

Bill Kempf