Hi,

> And of course, reads of files on the file
> system never block at all

A read from a file can block when the operating system needs to go to
disk for the data. This happens when the buffer empties and it cannot be
refilled before the next read call.





Regards,
@ndy

-- 
andy...@ashurst.eu.org
http://www.ashurst.eu.org/
0290 DA75 E982 7D99 A51F  E46A 387A 7695 7EBA 75FF


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