On 07/26/2010 02:51 PM, Sergei Gorelkin wrote:
Michael Schnell wrote:
...
This is essentially the same code as with Delphi. Supposedly as with
Delphi [__tls_index (417328h) ] is always 0 with normal applications.
(no idea what this is useful for)
The TLS index is allocated by a call to TlsAlloc at application
startup. It will be zero for the first call and increasing for
subsequent calls. The subsequent calls are typically done by libraries
that use threadvars. This approach ensures that threadvar blocks of
each module in process do not clash.
I see. So in a DLL that implements it's own thread system, the TLS index
will be non-zero. (The purpose being, that the Thread variables of each
library can have it's own address space, which is necessary for
non-statical linking.)
In Linux .so's this seems to be done in some other ways.
-Michael
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