| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package chartengine |
| 4 | |
| 5 | import "sync/atomic" |
| 6 | |
| 7 | type engineStats struct { |
| 8 | routeCacheHits uint64 |
| 9 | routeCacheMisses uint64 |
| 10 | } |
| 11 | |
| 12 | // statsSnapshot is a lock-free snapshot of planner/runtime counters. |
| 13 | type statsSnapshot struct { |
| 14 | RouteCacheHits uint64 |
| 15 | RouteCacheMisses uint64 |
| 16 | } |
| 17 | |
| 18 | // stats returns a lock-free snapshot of engine counters. |
| 19 | func (e *Engine) stats() statsSnapshot { |
| 20 | if e == nil { |
| 21 | return statsSnapshot{} |
| 22 | } |
| 23 | return statsSnapshot{ |
| 24 | RouteCacheHits: atomic.LoadUint64(&e.state.stats.routeCacheHits), |
| 25 | RouteCacheMisses: atomic.LoadUint64(&e.state.stats.routeCacheMisses), |
| 26 | } |
| 27 | } |
| 28 | |
| 29 | func (e *Engine) addRouteCacheHit() { |
| 30 | atomic.AddUint64(&e.state.stats.routeCacheHits, 1) |
| 31 | } |
| 32 | |
| 33 | func (e *Engine) addRouteCacheMiss() { |
| 34 | atomic.AddUint64(&e.state.stats.routeCacheMisses, 1) |
| 35 | } |