deps: update iroh and noq to 1.0-rc.0#236
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rklaehn
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This API tries to mirror the noq/iroh stream API, right?
There is a new fn bytes_read on RecvStream. So strictly speaking you would have to forward that one as well. But it's no big deal.
WalkthroughThis PR upgrades the iroh and noq web-transport crate implementations to pin release-candidate dependencies (iroh 1.0.0-rc.0, noq 1.0.0-rc.0, n0-error 1.0.0-rc.0) while consolidating their public APIs. Both transports now expose a unified recv stream interface where 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 inconclusive)
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Actionable comments posted: 1
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Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@rs/web-transport-iroh/src/send.rs`:
- Around line 61-72: The wrapper currently calls the non-existent
self.stream.write_many_chunks and accepts bufs: &mut &mut [Bytes]; update the
wrapper to call the actual iroh API self.stream.write_chunks and adjust the
parameter to match that signature (e.g., change the method signature from pub
async fn write_many_chunks(&mut self, bufs: &mut &mut [Bytes]) to accept bufs:
&mut [Bytes] and call self.stream.write_chunks(bufs).await.map_err(Into::into));
also consider renaming the wrapper to write_chunks to match
iroh::endpoint::SendStream if you prefer API parity.
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📒 Files selected for processing (4)
rs/web-transport-iroh/src/recv.rsrs/web-transport-iroh/src/send.rsrs/web-transport-noq/src/recv.rsrs/web-transport-noq/src/send.rs
🚧 Files skipped from review as they are similar to previous changes (2)
- rs/web-transport-noq/src/recv.rs
- rs/web-transport-iroh/src/recv.rs
| /// Write chunks of data to the stream, returning the number of bytes written. | ||
| /// | ||
| /// See [`iroh::endpoint::SendStream::write_many_chunks`]. | ||
| pub async fn write_many_chunks( | ||
| &mut self, | ||
| bufs: &mut [Bytes], | ||
| ) -> Result<endpoint::Written, WriteError> { | ||
| self.stream.write_chunks(bufs).await.map_err(Into::into) | ||
| bufs: &mut &mut [Bytes], | ||
| ) -> Result<usize, WriteError> { | ||
| self.stream | ||
| .write_many_chunks(bufs) | ||
| .await | ||
| .map_err(Into::into) | ||
| } |
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🧩 Analysis chain
🌐 Web query:
iroh 1.0.0-rc.0 endpoint SendStream write_many_chunks return value documentation
💡 Result:
In iroh 1.0.0-rc.0, the relevant API is iroh::endpoint::SendStream::write_chunks (there isn’t a method named write_many_chunks in the public SendStream docs). SendStream::write_chunks signature and return value - It is declared as: - pub async fn write_chunks(&mut self, bufs: &mut [Bytes]) -> Result<…> [1][2] - On success, it “yields an informative Written struct” indicating: - how many chunks were fully written, and - how many bytes were written [1][2] How it reports partial writes (what the Written struct + &mut [Bytes] mean) - The method mutates the input bufs: - Bytes chunks fully written are mutated to be empty [1][2]. - If a Bytes chunk is partially written, it is split and replaced so that the remaining (not-yet-written) suffix is kept [1][2]. - Because of congestion/flow control, the total written may be less than the total bytes provided; it writes “as much as it can without waiting again” [1][2]. Cancel-safety note (important for interpreting the return) - The iroh::endpoint::SendStream::write_chunks documentation states it is cancellation safe: “If this does not resolve, no bytes were written.” [2] If you meant “write_many_chunks” specifically - The closest equivalent is: - write_all_chunks(&mut self, bufs: &mut [Bytes]) -> Result<, WriteError>, which repeatedly calls write_chunks until all bytes are written, and mutates all chunks to be empty on completion [1][2]. Sources: [1][2]
Citations:
- 1: https://docs.rs/iroh/latest/iroh/endpoint/struct.SendStream.html
- 2: https://docs.rs/iroh-quinn/latest/iroh_quinn/struct.SendStream.html
🏁 Script executed:
# Check if write_many_chunks exists in the codebase
rg "write_many_chunks" --type rs
# Look at the actual file
cat -n rs/web-transport-iroh/src/send.rs | head -80Repository: moq-dev/web-transport
Length of output: 3917
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# Check iroh's Cargo.toml to see the exact version and where SendStream comes from
fd Cargo.toml | xargs grep -l "iroh" | head -5
cat -n rs/web-transport-iroh/Cargo.tomlRepository: moq-dev/web-transport
Length of output: 1496
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# Search for where SendStream is imported from
rg "SendStream" rs/web-transport-iroh/src/ --type rs -B 2 -A 2 | head -40Repository: moq-dev/web-transport
Length of output: 92
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# Look at the noq variant to see if it also has write_many_chunks
cat -n rs/web-transport-noq/src/send.rs | grep -A 12 "write_many_chunks"Repository: moq-dev/web-transport
Length of output: 785
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# Try to find any mention of write_many_chunks in iroh or check if it's a newer method
# Look at iroh source or docs more carefully
web_search "iroh SendStream write_many_chunks api documentation"Repository: moq-dev/web-transport
Length of output: 116
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# Check if there are any compilation issues or if the code actually builds
# Try to see if write_many_chunks might be from a different trait/type
rg "write_many_chunks" . --type rust -B 5 -A 2Repository: moq-dev/web-transport
Length of output: 1957
🌐 Web query:
iroh 1.0.0-rc.0 SendStream all public methods write
💡 Result:
For iroh::endpoint::SendStream (docs.rs, current API; used by iroh around the 1.0 RC timeframe), the public write-related methods are: 1) pub async fn write(&mut self, buf: &[u8]) -> Result<…> Writes up to buf.len bytes into the stream and returns the number of bytes written. [1] 2) pub async fn write_all(&mut self, buf: &[u8]) -> Result<, WriteError> Writes the entire buffer into the stream (repeatedly calling write internally). [1] 3) pub async fn write_chunks(&mut self, bufs: &mut [Bytes]) -> Result<…> Writes multiple Bytes chunks into the stream and returns how many were written. [1] 4) pub async fn write_chunk(&mut self, buf: Bytes) -> Result<, WriteError> Writes a single Bytes chunk into the stream in its entirety. [1] 5) pub async fn write_all_chunks(&mut self, bufs: &mut [Bytes]) -> Result<, WriteError> Writes an entire slice of Bytes chunks into the stream. [1] Non-write public methods on SendStream (often relevant when using the write methods): 6) pub fn finish(&mut self) -> Result<, ClosedStream> Notify the peer that no more data will ever be written to this stream. [1] 7) pub fn reset(&mut self, error_code: VarInt) -> Result<, ClosedStream> Close the send stream immediately (dropping locally buffered data). [1] 8) pub fn set_priority(&self, priority: i32) -> Result<, ClosedStream> Set send priority. [1] 9) pub fn stopped(&self) -> Stopped Get a handle to observe when the peer stops the stream / reads to completion. [1] 10) pub fn id(&self) -> StreamId Get the stream id. [1] 11) pub fn poll_write(self: Pin<&mut SendStream>, cx: &mut Context<'_>, buf: &[u8]) -> Poll<…> Low-level poll-based write API. [1] Note: iroh exposes other SendStream types in other crates (e.g., iroh_roq has send_rtp/flow_id/close/is_closed, and iroh_blobs::util has send/sync/reset/stopped/id), but the “write” methods above are the ones on iroh::endpoint::SendStream. [2][3]
Citations:
- 1: https://docs.rs/iroh/latest/iroh/endpoint/struct.SendStream.html
- 2: https://docs.rs/iroh-roq/latest/iroh_roq/struct.SendStream.html
- 3: https://docs.rs/iroh-blobs/latest/iroh_blobs/util/trait.SendStream.html
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# Check if maybe there's a trait being imported
rg "use.*iroh" rs/web-transport-iroh/src/ -A 3Repository: moq-dev/web-transport
Length of output: 4770
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# Look at the complete send.rs to understand context better
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tail -20 rs/web-transport-iroh/src/send.rsRepository: moq-dev/web-transport
Length of output: 725
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# Check what write_chunks signature looks like and whether it's really the intended method
rg "write_chunks" rs/web-transport-iroh/src/send.rs -B 2 -A 8Repository: moq-dev/web-transport
Length of output: 47
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# Also check if maybe this PR is introducing write_many_chunks as a new method
git log --oneline --all -- rs/web-transport-iroh/src/send.rs | head -10
git show HEAD:rs/web-transport-iroh/src/send.rs | grep -A 12 "write_many_chunks" || echo "Method not in HEAD"Repository: moq-dev/web-transport
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# Check the commit that added write_many_chunks
git show 0a78bb3 --statRepository: moq-dev/web-transport
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# See if maybe iroh was updated in this same commit or if there's a mismatch
git show 0a78bb3 | grep -A 20 "write_many_chunks" | head -40Repository: moq-dev/web-transport
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# Check if write_many_chunks was added in newer iroh versions
web_search "iroh write_many_chunks method SendStream"Repository: moq-dev/web-transport
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# Also check the noq implementation to see if it has write_many_chunks
rg "write_many_chunks" rs/web-transport-noq/src/send.rs -B 3 -A 12Repository: moq-dev/web-transport
Length of output: 744
🌐 Web query:
iroh SendStream write_many_chunks public method API
💡 Result:
In iroh’s public Rust API, the method is named write_chunks (not write_many_chunks). API: SendStream::write_chunks(&mut self, bufs: &mut [Bytes]) -> Result<...> - Purpose: “Write a slice of Bytes into this stream, returning how much was written”.[1][2] - Behavior: it may write fewer bytes than the total due to congestion/flow control, and on success it mutates the provided bufs: fully written chunks become empty, and a partially written chunk is split so the remaining suffix stays in the slice.[1][2] - Cancellation: the docs specify cancel safety (“If this does not resolve, no bytes were written.”).[1][2] Related convenience methods: - write_chunk(&mut self, buf: Bytes) writes a single chunk “in its entirety” and repeatedly calls write_chunks until done.[1][2] - write_all_chunks(&mut self, bufs: &mut [Bytes]) repeatedly calls write_chunks until all bytes are written, and mutates all chunks to be empty.[1][2] So if you were looking for “write_many_chunks”, the closest direct match is write_chunks (and if you need to ensure everything is written, use write_all_chunks).[1][2]
Citations:
- 1: https://docs.rs/iroh/latest/iroh/endpoint/struct.SendStream.html
- 2: https://docs.rs/iroh-quinn/latest/iroh_quinn/struct.SendStream.html
The method write_many_chunks does not exist in iroh 1.0.0-rc.0.
The code calls self.stream.write_many_chunks(bufs), but iroh's public API provides write_chunks (singular), not write_many_chunks. The method name and possibly the signature need correction. Refer to https://docs.rs/iroh/latest/iroh/endpoint/struct.SendStream.html to verify the correct method and update the wrapper accordingly.
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@rs/web-transport-iroh/src/send.rs` around lines 61 - 72, The wrapper
currently calls the non-existent self.stream.write_many_chunks and accepts bufs:
&mut &mut [Bytes]; update the wrapper to call the actual iroh API
self.stream.write_chunks and adjust the parameter to match that signature (e.g.,
change the method signature from pub async fn write_many_chunks(&mut self, bufs:
&mut &mut [Bytes]) to accept bufs: &mut [Bytes] and call
self.stream.write_chunks(bufs).await.map_err(Into::into)); also consider
renaming the wrapper to write_chunks to match iroh::endpoint::SendStream if you
prefer API parity.
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you are looking at the wrong documentation: https://docs.rs/iroh/1.0.0-rc.0/iroh/endpoint/struct.SendStream.html
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@dignifiedquire, you're absolutely right — I apologize for the incorrect review. I was looking at the docs for a different (non-RC) version of iroh, not the pinned =1.0.0-rc.0 version specified in this PR. The write_many_chunks method and its &mut &mut [Bytes] parameter signature are correct for iroh 1.0.0-rc.0, which aligns with the coordinated rename from write_chunks → write_many_chunks in noq 1.0.0-rc.0 (since iroh now uses noq as its underlying QUIC layer). The code is correct as written.
✏️ Learnings added
Learnt from: dignifiedquire
Repo: moq-dev/web-transport PR: 236
File: rs/web-transport-iroh/src/send.rs:61-72
Timestamp: 2026-05-11T11:27:55.619Z
Learning: In iroh 1.0.0-rc.0, `iroh::endpoint::SendStream` has a `write_many_chunks` method (replacing the older `write_chunks` from previous versions). The signature is `pub async fn write_many_chunks(&mut self, bufs: &mut &mut [Bytes]) -> Result<usize, WriteError>`. This API change was introduced alongside noq 1.0.0-rc.0, since iroh now uses noq as its underlying QUIC layer. Always refer to https://docs.rs/iroh/1.0.0-rc.0/iroh/endpoint/struct.SendStream.html for the RC-specific API rather than the `latest` docs.rs page.
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