Re: Info sought on thread local storage (TLS)

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#6012

From: Ed Mulroy
Date: Wed, 15 Jun 2005 23:28

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Warning:

Thread Local Storage, TLS, provides a very small amount of memory.  Every 
compiler supplies an alternate function to that provided by Win32 for 
starting a thread.  The compiler-supplied function(s) set up a data block 
and place the address of that block and possibly some flags into the TLS 
memory.

If you alter TLS memory you may crash the program and possibly crash the 
machine.  If you Win32 function to start the thread in a C/C++ program then 
you also risk causing a crash.

.  Ed

> Helmut Giese wrote in message
> news:42b0a9ef.20026212@forums.borland.com...
>
> Hello out there,
> while I am familiar with writing multi-threaded apps, the concept of
> thread local storage (TLS) is rather unknown to me.
> Now it appears that the time has come where I will have to use this
> feature, so I am looking for some sort of a general overview on TLS
> (hopefully providing some examples).
> Any links will be greatly appreciated.

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Subject: Re: Info sought on thread local storage (TLS)
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