(st stackTrace)
| 317 | type stackCounterMap map[uint64]*stackCounter |
| 318 | |
| 319 | func (scm stackCounterMap) lookup(st stackTrace) *stackCounter { |
| 320 | sc := scm[st.key] |
| 321 | if sc == nil { |
| 322 | sc = &stackCounter{stack: st.clone()} |
| 323 | scm[st.key] = sc |
| 324 | } |
| 325 | return sc |
| 326 | } |
| 327 | |
| 328 | func (scm stackCounterMap) observe(st stackTrace, val int64) { |
| 329 | scm.lookup(st).observe(val) |