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Re: Found a undocumented way to have thread_local variables in DLLs

From "R.Wieser" <address@not.available>
Newsgroups comp.lang.c++, comp.os.ms-windows.programmer.win32
Subject Re: Found a undocumented way to have thread_local variables in DLLs
Date 2022-05-28 10:27 +0200
Organization Aioe.org NNTP Server
Message-ID <t6smdc$a7a$2@gioia.aioe.org> (permalink)
References <t6r1ca$aeu$1@dont-email.me> <t6rcuk$1sq1$1@gioia.aioe.org> <t6rdsv$5qu$1@dont-email.me> <t6rfn5$i19$1@dont-email.me> <t6rg35$k2t$2@dont-email.me>

Cross-posted to 2 groups.

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Bonita,

>> https://docs.microsoft.com/en-us/windows/win32/dlls/using-thread-local-storage-in-a-dynamic-link-library
>
> Ok, but that's manual TLS.

:-)   Oh boy, I would really like to see your face when you discover the 
Assembly language, and realize that you've been fed VC++ freebies all this 
time ...

Or, in other words : If-and-when you have a TLS storage slot available to 
you inside threads in your main program than that is something the VC++ 
programming language does (injects) for you.

No idea why though, as I've never had the need for TLS slots in my main 
program - as, as I already explained, threads work the same way as functions 
in regard to its local variables.

In a programs thread - the main one or ones later or ones created by it - 
you could just store that memory pointer in a variable local to that thread. 
It will still be there and valid when you reach the functions or threads 
end.

Regards,
Rudy Wieser

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Thread

Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-27 19:22 +0200
  Re: Found a undocumented way to have thread_local variables in DLLs "R.Wieser" <address@not.available> - 2022-05-27 22:39 +0200
    Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-27 22:56 +0200
      Re: Found a undocumented way to have thread_local variables in DLLs "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-05-27 14:26 -0700
        Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-27 23:33 +0200
          Re: Found a undocumented way to have thread_local variables in DLLs "R.Wieser" <address@not.available> - 2022-05-28 10:27 +0200
            Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-28 10:37 +0200
              Re: Found a undocumented way to have thread_local variables in DLLs "R.Wieser" <address@not.available> - 2022-05-28 15:01 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-28 17:27 +0200
      Re: Found a undocumented way to have thread_local variables in DLLs "R.Wieser" <address@not.available> - 2022-05-28 10:15 +0200
        Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-28 10:37 +0200
          Re: Found a undocumented way to have thread_local variables in DLLs "R.Wieser" <address@not.available> - 2022-05-28 15:10 +0200
            Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-28 17:27 +0200
              Re: Found a undocumented way to have thread_local variables in DLLs "R.Wieser" <address@not.available> - 2022-05-28 18:40 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-28 19:28 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs "R.Wieser" <address@not.available> - 2022-05-29 13:22 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-29 13:30 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs "R.Wieser" <address@not.available> - 2022-05-29 14:41 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-29 14:56 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs "R.Wieser" <address@not.available> - 2022-05-29 17:13 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs Freethinker <freethinker@mymail.com> - 2022-05-29 15:09 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-29 17:38 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs muttley@dastardlyhq.com - 2022-05-29 15:47 +0000
                Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-29 18:17 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-05-29 18:56 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-29 19:21 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-05-29 19:26 +0200
                Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-30 11:30 +0200
  Re: Found a undocumented way to have thread_local variables in DLLs Mr Flibble <flibble@reddwarf.jmc> - 2022-05-27 21:48 +0100
    Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-27 23:01 +0200
  Re: Found a undocumented way to have thread_local variables in DLLs Paavo Helde <eesnimi@osa.pri.ee> - 2022-05-28 00:02 +0300
    Re: Found a undocumented way to have thread_local variables in DLLs Bonita Montero <Bonita.Montero@gmail.com> - 2022-05-27 23:32 +0200

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