[renovate]

This PR contains the following updates:

Package	Type	Update	Change
zbus	dependencies	major	5.15.0 → 6.0.0

---

Release Notes

z-galaxy/zbus (zbus)

v6.0.0

Compare Source

The book's Upgrading to zbus 6.0 chapter
is the complete list of this release's breaking changes; the Breaking group below holds only some
of them.

✨ Added

• Run connections on Tokio on WASI.
• Add spawn_process to traits::Runtime.
• Add connect_tcp and connect_unix to traits::Runtime.
• Add a flush hook to WriteHalf.
• Make block_on part of the public API.
• Do every socket's I/O through the connection's runtime.
• Make a build with neither backend valid.
• Accept any runtime through Builder::runtime.
• Add the traits through which a runtime serves a connection.
• Add FilePath::as_c_str.
• Mark the builders and their setters as must_use.
• Defer connection builder errors to build().
• Defer message builder errors to build().
• Defer proxy builder errors to build().
• Defer match rule builder errors to build().
• Accept more typed values in name and path conversions.
• Add Structure::builder.
• Expose common wire types at the crate root.
• Use Serde and Type for interface properties.
• Use Serde and Type for proxy properties.
• Gate the D-Bus API behind the comms feature.
• Add ConnectionCredentials::into_process_fd.
• Support conversion from/to BTreeMap for Variant and OwnedVariant.

💥 Breaking

• Declare AsyncDrop without async-trait.
• Drop the Fromhex::FromHexError impl of Error.
• Take std socket types in Builder::unix_stream and tcp_stream, and drop
  Builder::async_io_unix_stream and async_io_tcp_stream.
• Drop the unused lifetime of StructureSeed.
• Return StartServiceReply from start_service_by_name.
• Drop the VSOCK transport.
• Drop the enumflags2 feature.
• Make MethodFlags a bitflags type.
• Make message::Flags a bitflags type.
• Make RequestNameFlags a bitflags type.
• Take and give queue sizes as NonZeroUsize.
• Hand out listeners of zbus's own types.
• Replace the async-io feature and crates with default-rt: zruntime's runtime, one per
  thread that calls block_on and driven by that thread.
• Remove the blocking API.
• Stop generating blocking proxies.
• Drop the properties cache from proxies without properties.
• Drop the format from the wire Context.
• Drop the Format dispatch from Signature.
• Unify the error types.

👷 CI

• Measure the single-thread benchmarks by CPU simulation.

♻️ Changed

• Rename DispatchResult2 to DispatchResult.
• Convert Interest to zruntime's in a private function.
• Poll the runtime-less block_on's future without futures-lite.
• Race a timeout's future and its sleep without futures-lite.
• Take the next item of a stream without futures-lite.
• Rename Value to Variant. #​1947
• Register sockets with Tokio on Windows through its own stream.
• Make the unixexec and ibus features non-default.
• Connect to an address without cloning it.
• Remove redundant downcast checks.
• Take the blocking-work thread from zruntime.
• Take the async locks from zruntime.
• Run transport helper processes on the connection's runtime.
• Hand blocking work to the runtime when it is asked for.
• Connect every transport on the connection's runtime.
• Dispatch every runtime arm through the trait.
• Take a connection's tasks and timers from one runtime.
• Rename the abstractions module to runtime.
• Rename Body::deserialize_unchecked.
• Make tracing an optional feature. #​331
• Put the service-side ObjectManager behind a feature.
• Put the ibus transport behind a feature.
• Put the unixexec transport behind a feature.
• Keep the signal path non-generic.
• Keep the method call path non-generic.
• Build signature mismatch errors out of line.
• Write introspection doc comments through a helper.
• Convert method handler errors in one place.
• Build replies in one non-generic step.
• Write message bodies through a trait object.
• Use the root wire API in callers and examples.
• Add service feature. #​1135
• Add proxy feature.
• Declare the standard interface proxies separately.
• Convert property values in memory.
• Remove no-op async-fs cargo feature. #​1287
• Gate integration tests in modules.
• Rename zvariant_utils to zbus_utils.
• Tidy the imports the crate merge left behind.
• Move the zvariant derives into zbus_macros.
• Port the in-tree callers to zbus::wire.
• Move zvariant into zbus as the wire module.
• Move zbus_names into zbus as the names module.
• Reach the bus name types through the re-export.
• Deduplicate the default-interface name checks.

📦 Dependencies

• Bump the MSRV to 1.89.
• Update tokio to v1.53.3 (#​2028).
• Drop futures-lite from the library's dependencies.
• Drop the Tokio features nothing uses.
• Drop the async-recursion dependency.
• Move to zruntime's broadcast channel.
• Build on zruntime's Event instead of event-listener.
• Drop the async-lock feature and crate.
• Drop proc-macro-crate (#​1365).

🗑️ Deprecated

• Add deprecated zvariant aliases for the wire module.

📝 Documentation

• Document the public items of fdo, proxy and the error types.
• Document the public items of connection and address.
• Document the public items of names, message and match_rule.
• Document the public items of the wire module.
• Say how the set_max_queued methods treat a smaller size.
• Say what block_on runs on with the tokio feature.
• List the object-manager feature in the README.
• Document the support of WASI. #​1452
• Point the book at the runtime traits' docs.
• Move the example Socket implementation to the trait's docs.
• Document the runtime trait's connects and helper process.
• Document the fields of Error::Connection.
• Document the built-in runtime.
• Point synchronous programs at zbus::block_on.
• Document the runtime and socket changes of 6.0.
• Document the proxy and service features.
• Add usage example to ObjectManager docs.
• Update the book for zbus 6.0.
• Document the wire and names modules.
• Make two intra-doc links feature-independent.

🐛 Fixed

• Fail where WASI has no default bus address or machine ID.
• Make PropertyStream yield changes if service starts later.
• Convert Message to Error::FDO for matching method errors.
• End a connection whose socket reader task is gone.
• Accept a map in as_value::Deserialize.
• Carry any D-Bus error in zbus::Error.
• Let property handlers fail with any DBusError. #​313
• Make ObjectServer::at hand back the interface on conflict. #​235
• Fix a small build issue for unix targets.
• Reject non-basic dictionary keys. #​1637
• Don't leak auto-created nodes when interface addition fails.
• Don't destroy objects still in use on interface removal.
• Prune empty ancestor nodes on interface removal. #​1916
• Validate names in Variant and OwnedVariant conversions.
• Check the Optional null sentinel before converting.

⚙️ Other

• 🚨 Warn about undocumented public items.
• 📦️ Describe the wire format in the package metadata.
• ✏️ Fix the proxy name in the README example.
• 💣 Ask for no process ID on WASI.
• 🛂 Authenticate as the user Builder::user_id names on WASI.
• 🔌 Have no unix-domain connect on WASI.
• 🔌 Do a connection's socket I/O on WASI.
• 🧵 Run blocking work on the calling thread on WASI.
• ✏️ Fix a typo in the AuthMechanism docs.
• 🧑‍💻 Convert lifetime-free newtypes from Values of any lifetime.
• 💬 Reword the Error::Connection message.
• 🦺 Replace unsafe downcast API w/ std's.
• 🧵 Use a single-threaded Tokio runtime in block_on by default.
• 🚨 Collapse nested ifs into let chains.
• 🚨 Use MAX rather than the deprecated max_value() in examples.
• 🚨 Box the recursive connect calls instead of using async-recursion.
• 💬 Don't name the Tokio runtime flavour in block_on's panic message.
• 🚨 Fix clippy warnings in tests.
• 🏷️ Use String as owned name NoneType.
• 🏷️ Implement Basic for scalar representations.
• 🚨 Fix clippy drain_collect lints.

⚡️ Performance

• Pipeline the whole client-side handshake.
• Collect an exited helper process without a blocking worker.
• Serialize the message header in one pass.
• Serialize message bodies in one pass.
• Box the address in Error::Connection.
• Sort interfaces by name in managed objects.
• Don't require an owned value for property setters.

🔥 Removed

• Drop the xdg-dbus-proxy workarounds. #​781
• Drop pre-6.0 deprecated APIs. #​1915
• Remove GVariant support, which lives on in the zgvariant crate.

🔒️ Security

• Make FilePath to std conversions sound & lossless. #​1906

✅ Testing

• Test a flags type defined with bitflags.
• Test PropertyStream of a service that starts later.
• Let criterion choose the benchmarks' time and sample count.
• Time only the operation in the per-pair runtime benchmarks.
• Run the concurrent calls benchmark's ends on their own threads.
• Benchmark what a connection costs on its runtime.
• Don't assume little-endian host in dict_value test.
• Prove a one-thread runtime runs a connection with no zbus thread.
• Pass the unixexec test where systemd-stdio-bridge is absent.
• Test that a message rejects a maybe body signature.
• Cover Serde property conversion.
• Test message streams with each runtime.
• Test additive TCP builder signatures.
• Test additive Unix builder signatures.

v5.19.0

Compare Source

Added

• ✨ Add Builder::async_io_unix_stream and async_io_tcp_stream.
• ✨ Make the tokio and async-io features additive.

Changed

• ♻️ Remove unnecessary clones.

Deprecated

• 🗑️ Deprecate unix_stream/tcp_stream when tokio is disabled.

Documentation

• 📝 Document the tokio and async-io runtime selection.

Fixed

• 🥅 throw Error::Connection on connection failure.
• 🥅 Add new error variant Error::Connection.

Other

• ✏️ Fix a typo in the executor docs.

Testing

• ✅ Test runtime selection with both backends enabled.
• ✅ add tests for Error::Connection.

v5.18.0

Compare Source

Added

• ✨ Add Connection::closed() and is_closed() API.

Documentation

• 📝 Document ObjectManager-ancestor deadlock in ObjectServer::at.

Other

• 🚨 Replace manual match-and-return with the ? operator.

Testing

• ✅ Test registering an interface from a &mut self callback.

v5.17.0

Compare Source

Changed

• ♻️ Move pending method call to separate module.

Other

• 🧐 Add concurrent method-call benchmark.

Performance

• ⚡️ Route method replies directly by serial.

v5.16.0

Compare Source

Changed

• 🔧 Restrict vsock features to Linux targets.

Documentation

• 📝 Replace docs.rs all-features with explicit feature list.

Fixed

• 🚑️ Fix sendmsg for iOS and other apple OS.

Other

• 🔊 warn on GetAll error during property cache init. #​1325

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