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In addition to cleaning when ranch:stop_listener/1 is called, we
also need to clean when we detect the supervisor is going away
for normal reasons, because the supervisor might be in another
application's supervision tree.
Note that there might be a short delay in this case before the
cleanup is done, due to using monitors for detection.
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This can be used by Cowboy to better deal with the switch
to maps for transport options and avoid the log message
when using lists.
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Ranch is now made for and tested on 18+ only.
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Also review and update the ranch(7) manual and fix a few specs.
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It can be quite huge and hinders readability.
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I had to use the process dictionary to work around the current
interface for one log call. You have been warned.
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The "normal" errors are still silenced when calling ranch:handshake.
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Based on the work done by @juhlig.
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A map should now be used when specifying transport options
that contain more than just socket options. It is still
possible to pass a list of socket options directly as a
convenience.
The ack_timeout is renamed to handshake_timeout when
specified as a map. This corresponds to the new function
ranch:handshake/1,2 that will be favored in Ranch 2.0.
Specifying Ranch-specific options via the proplist will
no longer be possible starting from Ranch 2.0.
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Next release will only support 18+.
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This commit deprecates Transport:accept_ack/1 in favor of
a new forward-compatible function. Transport:handshake/1,2
will use ssl:handshake/2,3 from Ranch 2.0 onward.
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LH: Reworked validation style and added a -dialyzer
attribute to acceptor_SUITE to silence expected errors.
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This allows graceful draining of connections, updating transport
options on a running listener without having to drop connections
and other similar scenarios.
Note that when updating transport options the listener must be
suspended which means that new connections will be rejected until
the listener is resumed.
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The NumAcceptors argument has been moved to transport option
num_acceptor, which defaults to 10. The functions now take
one less argument. The old functions are still here, though
deprecated.
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Amended with small whitespace changes and removing an unused clause.
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Provides detailed information about Ranch listeners
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Ranch now depends on SSL. Users embedding listeners in
their supervision tree are expected to depend on SSL too
if they are using it.
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We always get the acceptor to resume. The child process will
be killed, and the current code will ignore any EXIT message
when that happens because the pid isn't in the process dictionary.
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Simplify some return values, improve error messages for
eaddrinuse and no_cert.
Amended to add tests and simpler code. Also hides the
contents of cert and key transport options, if any.
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Cert/certfile is no longer required if SNI options are provided.
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Dialyzer will still complain about unknown options, but at
least users won't be stuck waiting for an upstream update.
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In some cases the ranch_server:get_connections_sup/1 call could
still succeed depending on timing.
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Added in ssl-7.3.1 (OTP-13261). Documented in ssl-8.0.
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This reduces from 10 restarts in 10 seconds to 1 restart
in 5 seconds. This is the new default in OTP 18, and it
fits the kinds of processes that Ranch deals with:
* Supervisors: default makes sense.
* Acceptors: they crash on socket error. They'll probably
crash again if the socket didn't change.
* Connection processes: they are never restarted.
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When SSL is stopped before Ranch, the acceptors crash and
Ranch tries to restart them. The problem is that the
ranch_ssl:listen/1 call was trying to start the SSL
application to make sure it works (an old artifact from
when releases were not ubiquitous). Because the application
controller is trying to shutdown Ranch, and Ranch tries to
tell it to start an application, everything would get stuck.
To avoid a breaking change, we move this in the start_listener
call (or child_spec). Note that there are still logs when the
SSL application is closed, because the acceptors crash. But
at least we don't block node shutdown anymore.
In Ranch 2.0, we will implement the proper fix which is to
simply depend on the SSL application normally. Nowadays, it's
not too difficult to build a release that excludes applications
we don't want, although we should document that in the Ranch
user guide.
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Should be more user friendly.
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