Struct SessionCounters 

pub struct SessionCounters { /* private fields */ }

Atomic counter array shared between session and torrent actors.

All values are AtomicI64 — counters are incremented, gauges are set. The struct is Send + Sync (auto-derived from AtomicI64).

Implementations

impl SessionCounters

pub fn new() -> Self

Create a new counter array with all values initialised to zero and diagnostic counters disabled.

pub fn new_with_diagnostics(enabled: bool) -> Self

Create a new counter array with diagnostic counters enabled.

pub fn diagnostics_enabled(&self) -> bool

Whether diagnostic counters (indices >= DIAGNOSTIC_COUNTERS_START) are being incremented.

pub fn inc(&self, metric: usize, delta: i64)

Atomically add delta to a counter metric.

pub fn inc_diag(&self, metric: usize, delta: i64)

Like Self::inc but only increments when diagnostic counters are enabled. Use for indices >= DIAGNOSTIC_COUNTERS_START.

pub fn set(&self, metric: usize, value: i64)

Atomically set a gauge metric to value.

pub fn set_max_diag(&self, metric: usize, value: i64)

Like Self::set_max but only updates when diagnostic counters are enabled. Use for indices >= DIAGNOSTIC_COUNTERS_START.

pub fn set_max(&self, metric: usize, value: i64)

Atomically update a high-water gauge: store value only when it exceeds the current value. Used by the sim-perf surface to track the peak depth observed for EVENT_TX_HIGH_WATER and DISPATCH_TX_HIGH_WATER. Race-tolerant — the worst case is a missed update on a tied write.

pub fn get(&self, metric: usize) -> i64

Read the current value of a metric.

pub fn snapshot(&self) -> Vec<i64>

Take a consistent snapshot of all metric values.

Also updates the uptime gauge and computes bandwidth rate deltas (upload/download rate = bytes since last snapshot).

pub fn len(&self) -> usize

Number of metrics tracked.

pub fn is_empty(&self) -> bool

Always returns false — there are always metrics.

pub fn uptime_secs(&self) -> u64

Seconds elapsed since the session was created.

Trait Implementations

impl Default for SessionCounters

fn default() -> Self

Returns the “default value” for a type.