Module histogram_logger 

Process-wide histogram logger task.

Owns one Arc<Mutex<HistogramAccumulator>> per registered (side, op) pair (each shared with the corresponding ControlUnit). On each tick, takes a snapshot of every accumulator, publishes the snapshot through a per-unit watch channel for the live display, and (when a log path was configured) appends a binary record per non-empty snapshot.

When the task ticks past a snapshot interval, it uses the actual snapshot end time as the record’s unix_micros field — readers see the true coverage even if the host was loaded.

Structs

LoggerConfig

Configuration for the logger task.

LoggerUnit

One slot the logger owns: the accumulator (shared with a ControlUnit) and the watch sender used to publish snapshots to the display.

Functions

run_logger

Run the logger task: ticks, snapshots, publishes, optionally writes to file. Exits when the provided cancellation token signals.

Type Aliases

ProgressSource

Closure that, when called, returns the JSON-encoded current progress snapshot. The logger calls this once per tick (only when a log file is being written) and emits one Progress record. Boxed so the concrete snapshot type stays in the caller’s crate — the logger doesn’t depend on it.