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| subject: | Mutex semaphores |
Hallo, Phil!
*** Am 10. November 1996 um 13:42 schrieb Phil Crown an Thomas Seeling:
TS>> void thread(...) {
TS>> request();
TS>> rc=function();
TS>> release();
TS>> }
PC> But, by putting the request for the mux sem inside the called function,
PC> I don't have to remember to request it (and fewer line of code to write)
PC> from the calling function.
Agree.
btw: atomic means that there cannot be an interruption between the testing
and creating of a ressource, i.e. if after testing there _were_ something
like a task change, another thread could do the same operation of
testing/creating, and the first thread would fail with its assumption of
exclusive access.
Tschau...Thomas
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