mirror of
https://github.com/FluxaMedia/fluxa-core.git
synced 2026-08-06 08:48:49 +00:00
fdf91ceb19
Per the robustness plan's §9 (flagged as the single highest-leverage
perf change in the crate): headless_engine_dispatch_json used to clone
the entire EngineState before the reducer ran, clone it again after,
then StatePatch::diff did a deep PartialEq walk across all 16 domains
and cloned each changed one a third time — cost scaled with everything
the user has ever loaded (full catalogs, episode lists), not with what
the action actually touched.
Introduces Tracked<T> (src/headless_engine/state.rs): wraps each
EngineState domain field so any mutable access — a field write, a
whole-value replacement via DerefMut, a method call taking &mut —
flips a dirty bit automatically. Serialize/Deserialize delegate
straight to the wrapped value, so the wire format is byte-for-byte
unchanged (verified by the golden wire fixtures added in the prior
commit, which pass unmodified). EngineState::diff_dirty() replaces
StatePatch::diff(before, after): it clones only domains whose dirty
bit is set and clears it, so both the pre-dispatch full clone and the
post-dispatch PartialEq walk are gone entirely. The ~16 call sites that
did whole-domain replacement (`engine.state.detail = DetailState {
...}`) needed `*engine.state.detail = ...` instead — the compiler
catches any site the migration missed as a type error, so there's no
way for this rewrite to silently skip a domain the way a hand-added
mark_dirty() call could.
Also fixes headless_engine_snapshot_json, which used to serialize
while still holding the engines mutex; it now clones the state and
drops the lock before calling serde_json::to_string.
Adds benches/ (criterion, `--features bench` dev-only surface via a
new bench_targets re-export module mirroring the existing fuzz_targets
pattern): headless_engine_dispatch benches a NavigationRequested
dispatch against a 500-stream detail state (a domain the action
doesn't touch, so the win is directly visible), and stream_ranking
benches player_source_sidebar_plan_json grouping 500 streams. CI gets
a bench-check job compiling and smoke-running both (`--test`) without
paying for full timing runs on every push.
85 lines
1.8 KiB
TOML
85 lines
1.8 KiB
TOML
[workspace]
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members = ["fluxa-streaming-engine"]
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exclude = ["fuzz"]
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resolver = "2"
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[workspace.dependencies]
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dolby_vision = { version = "3.3.2", default-features = false }
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fluxa_core = { path = ".", default-features = false }
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jni = { version = "0.21" }
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serde = { version = "1.0", features = ["derive"] }
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serde_json = "1.0"
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[profile.release]
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opt-level = 3
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lto = true
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codegen-units = 1
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strip = "debuginfo"
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panic = "unwind"
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[workspace.lints.rust]
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unsafe_op_in_unsafe_fn = "warn"
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[workspace.lints.clippy]
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unwrap_used = "warn"
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expect_used = "warn"
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indexing_slicing = "warn"
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panic = "warn"
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[package]
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name = "fluxa_core"
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version = "0.1.0"
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edition = "2021"
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[lib]
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crate-type = ["cdylib", "rlib"]
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[lints]
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workspace = true
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[[bin]]
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name = "uniffi-bindgen"
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path = "uniffi-bindgen.rs"
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required-features = ["uniffi-cli"]
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[features]
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default = ["native"]
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native = [
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"full-api",
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"dep:jni",
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"dep:dolby_vision",
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"uniffi-bindings",
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]
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desktop = ["full-api"]
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full-api = []
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streaming-shared = []
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uniffi-bindings = ["dep:uniffi", "full-api"]
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uniffi-cli = ["uniffi-bindings", "uniffi/cli"]
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wasm = ["full-api", "dep:wasm-bindgen", "chrono/wasmbind"]
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fuzzing = []
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bench = []
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[dependencies]
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base64 = "0.22"
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chrono = { version = "0.4.45", features = ["serde"] }
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dolby_vision = { workspace = true, optional = true }
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jni = { workspace = true, optional = true }
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regex = "1"
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serde = { workspace = true }
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serde_json = { workspace = true }
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uniffi = { version = "0.31.1", optional = true }
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wasm-bindgen = { version = "0.2", optional = true }
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web-time = "1"
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[dev-dependencies]
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criterion = { version = "0.5", default-features = false }
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[[bench]]
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name = "headless_engine_dispatch"
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harness = false
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required-features = ["bench"]
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[[bench]]
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name = "stream_ranking"
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harness = false
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required-features = ["bench"]
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