Re: Check Thread State

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#5900

From: Remy Lebeau (TeamB)
Date: Thu, 23 Jun 2005 22:59

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"qyte" <gyte@vivodinet.gr> wrote in message
news:42bb2031$1@newsgroups.borland.com...

> if i have created a thread that in it's constructor method i have
> FreeOnTerminate=true; if i declare the TMyThread *MyThread;
> global is there a way of knowing if the thread still runs or if is has
> been terminated and therefore freed???

Assign NULL to your global pointer when the thread is terminating.  Either
at the end of the thread's Execute() method, or better in the thread's
DoTerminate() method.  The rest of the code can then check for NULL when
needed.  You have to be careful, though, because if you are going to access
the thread after checking for it, it may disappear after the check but
before the access, ie:

    if( MyThread ) // <-- thread is still running
    {
        // thread terminates here...
        MyThread->DoSomething(); // <-- now an invalid operation
    }


Gambit

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Subject: Re: Check Thread State
Date: Thu, 23 Jun 2005 15:59:26 -0700
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