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TODO: "TCP Fast Open" is done, add monitor pool connections

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Daniel Stenberg 2016-06-22 12:06:47 +02:00
parent 120bf29ef2
commit b5d1b498fc
1 changed files with 12 additions and 3 deletions
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@ -288,10 +288,19 @@
curl_easy_set_cb() - sets a callback PLUS its callback data
1.15 TCP Fast Open
1.15 Monitor connections in the connection pool
RFC 7413 defines how to include data already in the TCP SYN handshake to
reduce latency.
libcurl's connection cache or pool holds a number of open connections for the
purpose of possible subsequent connection reuse. It may contain a few up to a
significant amount of connections. Currently, libcurl leaves all connections
as they are and first when a connection is iterated over for matching or
reuse purpose it is verified that it is still alive.
Those connections may get closed by the server side for idleness or they may
get a HTTP/2 ping from the peer to verify that they're still alive. By adding
monitoring of the connections while in the pool, libcurl can detect dead
connections (and close them) better and earlier, and it can handle HTTP/2
pings to keep such ones alive even when not actively doing transfers on them.
1.16 Try to URL encode given URL