The question stems from the following URL
http://groups.google.com/group/comp....55f33bf5cb1889
The author says that 'blocking', as applied to sockets, isn't the same thing as 'sleeping'. One of the difference he notes is that operation will not wait for slow events.
What is a 'slow event' in this case?
Sleeping as far as I know just means the program has everything it needs except CPU time. That is, the OS has decided that something else needs to be done.
Blocking means that the program is waiting for some external resource to become available (like a buffer being filled).
A slow event just means things which might take milliseconds to complete (which is an age in processor time), so it's worth putting the process to sleep while something else gets done.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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Okay, those definitions make sense. Thanks.Originally Posted by Salem
