dave
46 lines
1.7 KiB
Rust
46 lines
1.7 KiB
Rust
//! Events service — public API for the events domain.
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//!
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//! This module re-exports the pure buffer types from `buffer.rs` and the
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//! side-effectful watcher subscription from `io.rs`. HTTP handlers call
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//! these exports instead of containing the logic inline.
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//!
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//! Conventions: `docs/architecture/service-modules.md`
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pub mod buffer;
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pub(super) mod io;
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pub use buffer::{EventBuffer, StoredEvent};
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// Re-exported for tests (http::events uses it via `use super::*`).
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#[allow(unused_imports)]
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pub use buffer::MAX_BUFFER_SIZE;
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pub use io::subscribe_to_watcher;
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// ── Error type ────────────────────────────────────────────────────────────────
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/// Typed errors returned by `service::events` functions.
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///
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/// Events operations on the in-memory buffer are infallible; this enum
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/// exists to satisfy the module convention and to accommodate future
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/// error cases (e.g. persistence).
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#[allow(dead_code)]
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#[derive(Debug)]
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pub enum Error {
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/// A serialisation or internal error occurred.
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Internal(String),
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}
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impl std::fmt::Display for Error {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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match self {
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Self::Internal(msg) => write!(f, "Events error: {msg}"),
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}
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}
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}
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// ── Public API ────────────────────────────────────────────────────────────────
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/// Return all events in `buffer` recorded after `since_ms` milliseconds.
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pub fn events_since(buffer: &EventBuffer, since_ms: u64) -> Vec<StoredEvent> {
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buffer.events_since(since_ms)
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}
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