Re: GLPK 4.61: thread local storage in Windows DLL
Heinrich Schuchardt <[email protected]>
| Newsgroups | gmane.comp.gnu.glpk |
|---|---|
| Message-ID | <[email protected]> |
On 01/09/2017 09:18 PM, Andrew Makhorin wrote: > Please see attached a working tls implementation for dll. It is from > some old version of glpk. > This solution would require to call lib_get_ptr in every function where you refer to env. I think it is better to exclude TLS on pre-Vista Windows. Windows XP is not supported by Microsoft since April 8th, 2014. Best regards Heinrich > > > On Mon, 2017-01-09 at 20:32 +0100, Heinrich Schuchardt wrote: >> Hello David, >> >> the thread local storage is not correctly implemented for usage with >> Windows in a DLL. See >> >> https://msdn.microsoft.com/en-us/library/windows/desktop/ms686997 >> >> I think we should do the following: >> >> Write a test case that demonstrates the usage of multithreading GLPK >> using the pthread library. >> >> Add a pthread emulation for Windows so we can use the same test code >> with Windows and with Posix. For a minimalistic implementation see >> http://sqlstat.sourceforge.net/doxygen/html/sqlthread_8h_source.html >> >> Rewrite the allocation and freeing of the env variable according to the >> Windows DLL requirements. b>> >> Best regards >> >> Heinrich Schuchardt >> >