priestjim / gen_rpc / 238

75%

master: 75%

Pull #63

travis-ci

Refactor gen_rpc, implement SSL support

- The server and acceptor FSMs have been converted to `gen_statem` to
  follow Erlang's best practices
  and development. As a result, **support for Erlang releases older than
  19.1 has been dropped**.

- Specific options, leveraging Erlang 19, have been enabled such as
  off-heap mailboxes for client and acceptor,
  and higher priorities for all `gen_rpc` processes.

- Ports are not dynamically assigned anymore as it shows that, after
  some research, offers no additional benefits
  to having a static port listener. That means less processes to
  supervise and less moving parts where something can
  go wrong.

- Support for SSL has been added. Please refer to the
  [README](README.md#ssl-configuration) for more information on
  how to use it.

- Module version control support has been added, effectively allowing
  you to only make RPC calls to nodes that
  run specific versions of modules.

- `lager` support has been **dropped** in favor of the logging
  backend-agnostic library `hut`, in order to better support
  Elixir installations. The test suite and development profiles still
  use lager but this doesn't interfere with production
  deployments of `gen_rpc`.

- Tests have been updated to test more edge cases, including new SSL
  functionality.

- Some options in `gen_rpc.app.src` have changed names to better
  describe what they do. Again, pleaserefer to the README to
  verify your preexisting settings are consistent with their new names.

- Various smaller bugs have been fixed and various responses have been
  massaged for consistency.

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