Rustacean Station

Allen Wyma talks with Jonas Kruckenberg from Mainmatter about migrating production C and C++ codebases to Rust and the C to Rust Migration Book. They discuss incremental migration, refactoring legacy code, designing safe FFI boundaries, and testing undefined behavior.

Contributing to Rustacean Station

Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor!

Twitter: @rustaceanfm
Discord: Rustacean Station
Github: @rustacean-station
Email: hello@rustacean-station.org

Timestamps

[@00:00] - Intro
[@00:10] - Welcome and introducing Jonas Kruckenberg
[@01:52] - From JavaScript and Tauri to Rust, k23, and Mainmatter
[@04:41] - Incremental migration versus a complete rewrite
[@07:51] - The C to Rust Migration Book
[@13:11] - Why starting with leaf modules can fail
[@15:31] - Refactoring C before rewriting it in Rust
[@17:26] - Building safe Rust interfaces over C linked lists
[@22:06] - Undefined behavior and legacy FFI code
[@23:29] - Porting strcmp calls with null pointers
[@25:24] - Testing tools, assertions, and the FFI trust boundary
[@27:39] - Finding the book and getting in touch
[@28:25] - Memory safety and the future of Rust

Referenced resources

The C to Rust Migration Book
Tauri
k23

Credits
Intro Theme: Aerocity

Audio Editing: Plangora

Hosting Infrastructure: Jon Gjengset

Show Notes: Plangora

Hosts: Allen Wyma

Allen Wyma talks with Costa Alexoglou and Iason Paraskevopoulos, creators of Hopp, a tool that enables remote pair programming sessions. Hopp is built with Tauri and Rust, and is open source.

Contributing to Rustacean Station

Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor!

Twitter: @rustaceanfm
Discord: Rustacean Station
Github: @rustacean-station
Email: hello@rustacean-station.org

Timestamps

[@0:00] - Meet Costa Alexoglou and Iason Paraskevopoulos
[@3:12] - The problem with existing tools: high latency and poor quality
[@7:28] - Why Tauri was chosen (and its limitations)
[@10:28] - Moving from WebKit to a custom Rust WebRTC implementation
[@14:34] - How Hopp handles ultra-low latency screen sharing
[@22:50] - Technical deep dive: Bypassing browser limitations on macOS
[@31:18] - Roadmap: Migrating fully to Rust and future integrations
[@34:25] - Linux support challenges and distribution
[@41:03] - Using iced for Rust-based UI rendering
[@42:14] - Closing thoughts

Credits
Intro Theme: Aerocity

Audio Editing: Plangora

Hosting Infrastructure: Jon Gjengset

Show Notes: Plangora

Hosts: Allen Wyma

Jon and Ben discuss the highlights of the Rust 2024
Edition.

Contributing to Rustacean Station

Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor!

Twitter: @rustaceanfm
Discord: Rustacean Station
Github: @rustacean-station
Email: hello@rustacean-station.org

Timestamps & referenced resources

[@03:05] - RPIT lifetime capture rules
[@08:00] - let chains in if and while

if let temporary scope
Mara’s post on “super let”
Tail expression temporary scope


[@19:15] - Match ergonomics reservations
[@24:49] - Unsafe extern blocks
[@29:15] - Unsafe attributes
[@32:03] - unsafe_op_in_unsafe_fn warning
[@34:51] - Disallow references to static mut
[@39:20] - Never type fallback change
[@43:33] - Macro Fragment Specifiers
[@47:47] - gen keyword
[@49:36] - Changes to the prelude
[@50:32] - Add IntoIterator for Box<[T]>
[@56:03] - Newly unsafe functions
[@58:51] - Rust-version aware Cargo resolver
[@1:03:03] - Cargo table and key name consistency
[@1:03:57] - Reject unused inherited default-features
[@1:05:37] - Rustdoc combined doctests
[@1:07:13] - Rustdoc nested include! change
[@1:09:19] - The rustfmt style edition

Credits

Intro Theme: Aerocity

Audio Editing: synchis

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

Jon and Ben discuss the highlights of the 1.85 through 1.88 releases of Rust.

Contributing to Rustacean Station

Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor!

Twitter: @rustaceanfm
Discord: Rustacean Station
Github: @rustacean-station
Email: hello@rustacean-station.org

Timestamps & referenced resources

[@01:11] - Rust 1.85

[@02:05] - async closures

RFC 3668
Stabilization report


[@07:45] - Hiding trait implementations from diagnostics
[@09:43] - FromIterator and Extend for tuples
[@12:10] - Updates to std::env::home_dir()

Deprecation discussion
Deprecation PR
Originally abandoned fix
Undeprecation


[@15:19] - Stabilized APIs

[@15:30] - number::midpoint
[@16:18] - Waker::noop
[@17:49] - ptr::fn_addr_eq


[@20:10] - Changelog deep-dive

[@20:10] - De-duplicate and improve definition of c_char
[@22:56] - More constification


[@23:51] - Rust 1.85.1

[@24:46] - Rust 1.86

[@25:24] - Trait upcasting
[@30:49] - HashMaps and slices now support indexing multiple elements mutably
[@33:50] - Allow safe functions to be marked with the #[target_feature] attribute
[@36:21] - Debug assertions that pointers are non-null when required for soundness
[@39:48] - Make missing_abi lint warn by default
[@40:55] - Target deprecation warning for 1.87.0
[@42:25] - Stabilized APIs

[@42:25] - {float}::next_up
[@44:55] - Vec::pop_if


[@46:41] - Changelog deep-dive

[@46:41] - Changing -O to opt-level=3
[@47:47] - Optimized rustc binaries for aarch64
[@49:04] - Deprecate cargo --token
[@49:43] - No more “did you mean” in Cargo
[@50:14] - Sans-serif in rustdoc



[@50:45] - Rust 1.87

[@51:27] - Anonymous pipes
[@53:06] - Safe architecture intrinsics

Update the standard library to Rust 2024


[@55:00] - asm! jumps to Rust code
[@57:06] - Precise capturing in impl Trait in trait definitions

The Captures “trick”
Talk on impl Trait


[@58:45] - Stabilized APIs

[@58:45] - Vec::extract_if
[@1:00:13] - <[T]>::split_off
[@1:01:47] - OsStr::display
[@1:03:40] - <uN>::cast_signed
[@1:04:41] - <uN>::is_multiple_of
[@1:05:31] - <uN>::unbounded_shl
[@1:06:20] - TryFrom<Vec<u8>> for String
[@1:06:46] - Box<MaybeUninit<T>>::write
[@1:08:23] - String::extend_from_within


[@1:07:46] - Changelog deep-dive

[@1:07:46] - Actually un-deprecate home_dir
[@1:10:41] - Cargo SBOM support (RFC 3553)
[@1:11:48] - More Cargo ANSI sequences



Credits

Intro Theme: Aerocity

Audio Editing: synchis

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

Jon and Ben discuss the highlights of the 1.88 through 1.90 releases of Rust.

Contributing to Rustacean Station

Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor!

Twitter: @rustaceanfm
Discord: Rustacean Station
Github: @rustacean-station
Email: hello@rustacean-station.org

Timestamps & referenced resources

[@00:26] - Rust 1.88

[@00:26] - Let chains

The if let temporary scope


[@09:09] - Naked functions
[@11:55] - Boolean configuration
[@14:15] - Cargo automatic cache cleaning
[@17:52] - Stabilized APIs

[@17:52] - hint::select_unpredictable
[@21:16] - <[T]>::as_chunks
[@22:25] - Default for *const T
[@23:13] - HashMap::extract_if
[@23:43] - More metadata from Span


[@24:48] - Changelog deep-dive

[@24:48] - De-stabilize #[bench]
[@26:55] - --no-capture



[@28:31] - Rust 1.89

[@28:40] - Explicitly inferred arguments to const generics
[@30:14] - Mismatched lifetime syntaxes lint
[@35:29] - More x86 target features
[@36:33] - Cross-compiled doctests
[@38:31] - i128 and u128 in extern "C" functions
[@40:38] - Demoting x86_64-apple-darwin to Tier 2

Platform support policy


[@42:18] - Standards Compliant C ABI on wasm32-unknown-unknown

More about the ABI changes


[@46:05] - Stabilized APIs

[@46:05] - File::lock


[@48:34] - Changelog deep-dive

[@48:40] - aarch64 frame pointers

Why do frame pointers matter?


[@49:59] - Allow storing format_args! in variable

Behind the scenes of format_args!


[@51:38] - rustdoc sidebar on mobile



[@52:14] - Rust 1.90

[@52:14] - LLD is now the default linker on x86_64-unknown-linux-gnu

PR with lots of linked resources
rustc performance diff with lld


[@1:01:26] - Cargo adds native support for workspace publishing
[@1:03:03] - Stabilized APIs

[@1:03:26] - u{n}::saturating_sub_signed


[@1:04:20] - Changelog deep-dive

[@1:04:20] - home_dir fall back if HOME is set but empty



Credits

Intro Theme: Aerocity

Audio Editing: synchis

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel