zbus-2.0.0-beta

This is the beta of our upcoming API-breaking 2.0 release.

• azync::Connection API now almost identical to that of synchronous Connection. It:
  • no longer exposes transport mechanism to user as most users don't care about that.
  • provides separate Stream and Sink implementation types.
  • uses internal mutability.
  • Implements Clone trait.
  • Provides is_bus and as_raw_fd methods.
• Because of the above, Connection is now just a thin blocking wrapper around azync::Connection, which will make implementation of high-level async API in the near future, much easier.
• Drop azync::ConnectionType.
• raw and handshake modules now internal. Use azync::Connection if you need to an asynchronous way of creating the connection.
• Drop all deprecated API.
  • Default message handler API of Connection.
  • Errors that are no longer returned by zbus API.
• Drop unneeded lifetime specifiers on ObjectServer.
• Allow reading and writing to the same connection from different threads/tasks at the same time. Previously this would deadlock.
• Add gvariant feature to enable/disable gvariant support of gvariant.
• Fix some links in the docs.
• Add dep on async-lock.
• Replace futures-executor dep with pollster.
• Disable unneeded default features of futures-util crate.
• Drop futures-channel, nb-connect and polling dependencies.
• Use latest nix release (0.19.0).