1 import { dirname
, extname
, join
} from
'node:path'
2 import { fileURLToPath
} from
'node:url'
3 import { FixedClusterPool
, availableParallelism
} from
'poolifier'
4 import type { ClusterWorkerData
, ClusterWorkerResponse
} from
'./types.js'
6 const expressWorkerFile
= join(
7 dirname(fileURLToPath(import.meta
.url
)),
8 `express-worker${extname(fileURLToPath(import.meta.url))}`
11 const requestHandlerWorkerFile
= join(
12 dirname(fileURLToPath(import.meta
.url
)),
13 `request-handler-worker${extname(fileURLToPath(import.meta.url))}`
16 const pool
= new FixedClusterPool
<ClusterWorkerData
, ClusterWorkerResponse
>(
17 availableParallelism(),
21 onlineHandler
: () => {
26 Math.round(availableParallelism() / 4) < 1
28 : Math.round(availableParallelism() / 4),
29 workerFile
: requestHandlerWorkerFile
,
30 enableTasksQueue
: true,
34 errorHandler
: (e
: Error) => {
35 console
.error('Thread worker error:', e
)
39 if (response
.status) {
41 // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
42 `Express is listening in cluster worker on port ${response?.port}`
48 console
.error('Express failed to start in cluster worker:', error
)
51 errorHandler
: (e
: Error) => {
52 console
.error('Cluster worker error:', e
)