Re: Accessing same variable from multiple threads

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#7493

From: roladdon
Date: Tue, 25 Jan 2005 00:17

20 lines
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Sorry I can't see it.
Questions:

1) Could anything else happen besides a corrupt value ? (like a system 
crash..., exception...)
    (like in a scenario where the value does not matter and is used for 
informational purpose only, example for display only)

If nothing else besides a corrupt value can happen:
2) In case of checking for  true or false of a shared var:
        I can't see how the value could be corrupt, since only bit 1 gets 
set or cleared. All other bits stay 0.
        (to be sure you could   AND   the result with  1)

3) It's not clear to me:
        I thought it guarantied that the processor writes - uninterrupted - 
at least one byte to memory?
    - so using a   char  var  should be fine.

Roland

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Subject: Re: Accessing same variable from multiple threads
Date: Mon, 24 Jan 2005 19:17:03 -0500
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