On Tue, 12 Jun 2012, Felix E. Klee wrote:

> Or to rephrase my question: When I do something blocking, will "the OS"
> continue fetching data, for example into some buffer, which is then emptied
> when calling `curl_multi_socket_action()`?

Generally, your machine will still receive data in the kernel even though you
do a blocking all in user-space, at least to some extent - yes. But if you
don't drain that data within shortly it will of course stop receiving more.

-- 
  / daniel.haxx.se
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