[fpc-pascal]two questions plz help

[Jonas Maebe]

On woensdag, januari 16, 2002, at 12:57 , Stefan Ziegenbalg wrote:

>> This isn't MT-safe at all. If two threads are in the "while lock_mem do
>> delay(1);" loop, it's possible that when something else sets it to
>> false, they both check it before the other one has set it to true. You
>> need to do the testing and setting as an atomic operation.
>
> But the probability of that event is very low.

But it will cause sporadic and very hard to trace crashes. There's no 
use in making something "almost thread safe" :)


Jonas