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https://github.com/element-hq/synapse.git
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Erik JohnstonandClaude Fable 5
62067f1e00
Port `set_current_context` — the logcontext switch primitive, on the hottest path in the logging system — from Python into Rust, and read the thread CPU usage directly via `getrusage(RUSAGE_THREAD)` (libc) instead of through the `resource` module. This removes the per-switch Python frame, the `stop`/`start` method dispatch, and the `struct_rusage` object allocated on every switch; `current.stop()`/`context.start()` for the common base-`LoggingContext` case now run inline in Rust. `usage_start` becomes a private native `(ru_utime, ru_stime)` snapshot rather than a Python `struct_rusage` — nothing outside the module read it. The `start`/`stop` methods keep their abuse-detection behaviour (thread affinity, double-start, stop-without-start) via a shared native core (`start_inner`/ `stop_inner`) that both the pymethods and the switch fast path call, so those checks still run on every switch. `_get_cputime` folds into a native `cputime_delta` helper. Subclasses (`BackgroundProcessLoggingContext`) still work unchanged: the switch dispatches to them through Python (`obj.start(rusage)` / `obj.stop(rusage)`), materialising the rusage as a plain `(utime, stime)` tuple only on that off-hot-path branch, so their overrides run. `getrusage(RUSAGE_THREAD)` is Linux-only; other platforms return `None` (no per-context CPU accounting), as before. Removes the now-dead Python rusage plumbing (`get_thread_resource_usage`, the `RUSAGE_THREAD` support probe, `is_thread_resource_usage_supported`) — Rust owns rusage now. The Phase 0 characterization test's rusage stand-in changes from an opaque `object()` to a `(0.0, 0.0)` tuple to match the native representation; it still pins the same observable abuse-detection behaviour. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011LnJSXQ86AAWNtihR4C5PH
73 lines
1.9 KiB
TOML
73 lines
1.9 KiB
TOML
[package]
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# We name the package `synapse` so that things like logging have the right
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# logging target.
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name = "synapse"
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# dummy version. See pyproject.toml for the Synapse's version number.
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version = "0.1.0"
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edition = "2021"
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rust-version = "1.82.0"
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[lib]
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name = "synapse"
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# We generate a `cdylib` for Python and a standard `lib` for running
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# tests/benchmarks.
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crate-type = ["lib", "cdylib"]
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# This is deprecated, see tool.maturin in pyproject.toml.
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# It is left here for compatibilty with maturin < 0.15.
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[package.metadata.maturin]
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# This is where we tell maturin where to place the built library.
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name = "synapse.synapse_rust"
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[dependencies]
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async-trait = "0.1.89"
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anyhow = "1.0.63"
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base64 = "0.22.1"
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bytes = "1.6.0"
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headers = "0.4.0"
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http = "1.1.0"
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lazy_static = "1.4.0"
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libc = "0.2.174"
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log = "0.4.17"
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mime = "0.3.17"
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pyo3 = { version = "0.28.3", features = [
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"macros",
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"anyhow",
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"abi3",
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"abi3-py310",
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# So we can pass `bytes::Bytes` directly back to Python efficiently,
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# https://docs.rs/pyo3/latest/pyo3/bytes/index.html
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"bytes",
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] }
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pyo3-log = "0.13.3"
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pythonize = { version = "0.28.0", features = ["arbitrary_precision"] }
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regex = "1.6.0"
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sha2 = "0.10.8"
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serde = { version = "1.0.144", features = ["derive", "rc"] }
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serde_json = { version = "1.0.85", features = [
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"raw_value",
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# We need to be able to parse arbitrary precision numbers, as some numbers
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# in the database may be out of range of i64 (as Python uses arbitrary
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# precision integers).
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"arbitrary_precision",
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] }
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ulid = "1.1.2"
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icu_segmenter = "2.0.0"
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reqwest = { version = "0.12.15", default-features = false, features = [
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"http2",
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"stream",
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"rustls-tls-native-roots",
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] }
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http-body-util = "0.1.3"
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futures = "0.3.31"
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tokio = { version = "1.44.2", features = ["rt", "rt-multi-thread"] }
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once_cell = "1.18.0"
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itertools = "0.14.0"
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[build-dependencies]
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blake2 = "0.10.4"
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hex = "0.4.3"
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rustc_version = "0.4.1"
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