On Thu, 5 Jan 2017, Igor Gatis wrote:

> How long does CURL keep connections open for?

There's no time limit at all currently. That's however something we'd like to
add, as mentioned in the TODO:
https://curl.haxx.se/docs/todo.html#Timeout_idle_connections_from_th

In practice, servers rarely keep their end of connections alive for much more
than a few minutes with no traffic and also for most use cases the likeliness
that a connection will get reused is drastically reduced already after a few
minutes.

> Is there a way to tell CURL to close connections once they get idle for a
> given period of time?

Nope. Idle connections remain in the connection cache until

  1 - the connection is reused
  2 - the connection is killed because the cache needs the space
  3 - the cache is shut down and killed

-- 
  / daniel.haxx.se
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