5d3627b7 - WASIP3 update to latest rc (#12781)

Mon, 16 Mar 2026 14:43:47 +0000

WASIP3 update to latest rc (#12781) List of files: /wasmtime-44.0.1/crates/test-programs/src/bin/p3_sockets_tcp_bind.rs

52f8f198 - Unconditionally set SO_REUSEADDR (#12597)

Sun, 15 Feb 2026 16:25:01 +0000

Unconditionally set SO_REUSEADDR (#12597) List of files: /wasmtime-44.0.1/crates/test-programs/src/bin/p3_sockets_tcp_bind.rs

62d9b187 - Run s390x CI on a native machine (#11711)

Tue, 23 Sep 2025 20:19:25 +0000

Run s390x CI on a native machine (#11711)The hardware for this is provided by IBM and it's definitely faster thanQEMU. We've still got slow jobs elsewhere but removing this as a blockeris still nice for CI times!prtest:linux-s390x List of files: /wasmtime-44.0.1/crates/test-programs/src/bin/p3_sockets_tcp_bind.rs

5764da5f - Revamp component model stream/future host API (again) (#11515)

Thu, 04 Sep 2025 21:12:18 +0000

Revamp component model stream/future host API (again) (#11515)* Revamp component model stream/future host API (again)This changes the host APIs for dealing with futures and streams from a"rendezvous"-style API to a callback-oriented one.Previously you would create e.g. a `StreamReader`/`StreamWriter` pair and calltheir `read` and `write` methods, respectively, and those methods would return`Future`s that resolved when the operation was matched with a corresponding`write` or `read` operation on the other end.With the new API, you instead provide a `StreamProducer` trait implementationwhe creating the stream, whose `produce` method will be called as soon as a readhappens, giving the implementation a chance to respond immediately withoutmaking the reader wait for a rendezvous. Likewise, you can match the read endof a stream to a `StreamConsumer` to respond immediately to writes. This modelshould reduce scheduling overhead and make it easier to e.g. pipe items to/from`AsyncWrite`/`AsyncRead` or `Sink`/`Stream` implementations without needing toexplicitly spawn background tasks. In addition, the new API provides directaccess to guest read and write buffers for `stream` operations, enablingzero-copy operations.Other changes:- I've removed the `HostTaskOutput`; we were using it to run extra code with access to the store after a host task completes, but we can do that more elegantly inside the future using `tls::get`. This also allowed me to simplify `Instance::poll_until` a bit.- I've removed the `watch_{reader,writer}` functionality; it's not needed now given that the runtime will automatically dispose of the producer or consumer when the other end of the stream or future is closed -- no need for embedder code to manage that.- In order to make `UntypedWriteBuffer` `Send`, I had to wrap its raw pointer `buf` field in a `SendSyncPtr`.- I've removed `{Future,Stream}Writer` entirely and moved `Instance::{future,stream}` to `{Future,Stream}Reader::new`, respectively.- I've added a bounds check to the beginnings of `Instance::guest_read` and `Instance::guest_write` so that we need not do it later in `Guest{Source,Destination}::remaining`, meaning those functions can be infallible.Note that I haven't updated `wasmtime-wasi` yet to match; that will happen inone or more follow-up commits.Signed-off-by: Joel Dice * Add `Accessor::getter`, rename `with_data` to `with_getter`* fixup bindgen invocationSigned-off-by: Roman Volosatovs * add support for zero-length writes/reads to/from hostI've added a test to cover this; it also tests direct buffer access for`stream`, which I realized I forgot to cover earlier. And of course therewas a bug :facepalm:.Signed-off-by: Joel Dice * add `{Destination,Source}::remaining` methodsThis can help `Stream{Producer,Consumer}` implementations determine how manyitems to write or read, respectively.Signed-off-by: Joel Dice * wasi: migrate sockets to new APISigned-off-by: Roman Volosatovs * tests: read the socket stream until EOFSigned-off-by: Roman Volosatovs * p3-sockets: account for cancellationSigned-off-by: Roman Volosatovs * p3-sockets: mostly ensure byte buffer cancellation-safetySigned-off-by: Roman Volosatovs * p3-filesystem: switch to new APISigned-off-by: Roman Volosatovs * fixup! p3-sockets: mostly ensure byte buffer cancellation-safety* p3-cli: switch to new APISigned-off-by: Roman Volosatovs * p3: limit maximum buffer sizeSigned-off-by: Roman Volosatovs * p3-sockets: remove reuseaddr test loop workaroundSigned-off-by: Roman Volosatovs * p3: drive I/O in `when_ready`Signed-off-by: Roman Volosatovs * fixup! p3: drive I/O in `when_ready`* Refine `Stream{Producer,Consumer}` APIsPer conversations last week with Roman, Alex, and Lann, I've updated thesetraits to present a lower-level API based on `poll_{consume,produce}` functionsand have documented the implementation requirements for various scenarios whichhave come up in `wasmtime-wasi`, particularly around graceful cancellation. Seethe doc comments for those functions for details.Signed-off-by: Joel Dice * being integration of new APISigned-off-by: Roman Volosatovs * update wasi/src/p3/filesystem to use new stream APIThis is totally untested so far; I'll run the tests once we have everything elsecompiling.Signed-off-by: Joel Dice * update wasi/src/p3/cli to use new stream APIThis is totally untested and doesn't even compile yet due to a lifetime issue Idon't have time to address yet. I'll follow up later with a fix.Signed-off-by: Joel Dice * fix: remove `'a` bound on `&self`Signed-off-by: Roman Volosatovs * finish `wasi:sockets` adaptationSigned-off-by: Roman Volosatovs * finish `wasi:cli` adaptationNote, that this removes the read optimization - let's get theimplementation complete first and optimize laterSigned-off-by: Roman Volosatovs * remove redundant loop in socketsSigned-off-by: Roman Volosatovs * wasi: buffer on 0-length readsSigned-off-by: Roman Volosatovs * finish `wasi:filesystem` adaptationSigned-off-by: Roman Volosatovs * remove `MAX_BUFFER_CAPACITY`Signed-off-by: Roman Volosatovs * refactor `Cursor` usageSigned-off-by: Roman Volosatovs * impl Default for VecBufferSigned-off-by: Roman Volosatovs * refactor: use consistent import stylingSigned-off-by: Roman Volosatovs * feature-gate fs Arc accessorsSigned-off-by: Roman Volosatovs * Update test expectations---------Signed-off-by: Joel Dice Signed-off-by: Roman Volosatovs Co-authored-by: Alex Crichton Co-authored-by: Roman Volosatovs List of files: /wasmtime-44.0.1/crates/test-programs/src/bin/p3_sockets_tcp_bind.rs

7c9f88da - Update WASIp3 wasi:sockets WITs (#11422)

Tue, 12 Aug 2025 20:30:32 +0000

Update WASIp3 wasi:sockets WITs (#11422)Brings in a few cosmetic changes to definitions to keep things up-to-date.Closes bytecodealliance/wasip3-prototyping#242 List of files: /wasmtime-44.0.1/crates/test-programs/src/bin/p3_sockets_tcp_bind.rs

7074afb6 - feat(wasip3): implement `wasi:sockets` (#11291)

Tue, 29 Jul 2025 23:35:32 +0000

feat(wasip3): implement `wasi:sockets` (#11291)* chore(wasip3): update `wasi:sockets` WITpull in `wasi:sockets` fromhttps://github.com/WebAssembly/wasi-sockets/pull/126Signed-off-by: Roman Volosatovs * refactor: rearrange Ctx/ViewSigned-off-by: Roman Volosatovs * refactor: name modules after packagesSigned-off-by: Roman Volosatovs * refactor: move `Network` to `p2`Signed-off-by: Roman Volosatovs * feat(wasip3): implement `wasi:sockets`Signed-off-by: Roman Volosatovs * refactor: reuse socket utilitiesSigned-off-by: Roman Volosatovs * test(wasip3): allow name resolution to failSigned-off-by: Roman Volosatovs * fix: expect macos-only var to be unused on other OSesSigned-off-by: Roman Volosatovs * refactor: whole buffer is written for UDPSigned-off-by: Roman Volosatovs * undo non-blocking writeSigned-off-by: Roman Volosatovs * extract buf capacity const, refactor tcp receiveSigned-off-by: Roman Volosatovs * introduce container struct for TCP non-inherited optsSigned-off-by: Roman Volosatovs * handle `listen` receiver closeSigned-off-by: Roman Volosatovs * refactor: clean upSigned-off-by: Roman Volosatovs * adapt to API changesprtest:fullSigned-off-by: Roman Volosatovs * refactor: check for listen receiver close each iterationSigned-off-by: Roman Volosatovs * Try to make test less flaky* Cut down on `#[cfg]` required for wasi:sockets* Fix test for real this time---------Signed-off-by: Roman Volosatovs Co-authored-by: Alex Crichton List of files: /wasmtime-44.0.1/crates/test-programs/src/bin/p3_sockets_tcp_bind.rs

Changes in p3_sockets_tcp_bind.rs

5d3627b7 - WASIP3 update to latest rc (#12781)

52f8f198 - Unconditionally set SO_REUSEADDR (#12597)

62d9b187 - Run s390x CI on a native machine (#11711)

5764da5f - Revamp component model stream/future host API (again) (#11515)

7c9f88da - Update WASIp3 wasi:sockets WITs (#11422)

7074afb6 - feat(wasip3): implement `wasi:sockets` (#11291)