1 files changed, 40 insertions, 0 deletions

diff --git a/server/lib/worker/parent-process.ts b/server/lib/worker/parent-process.ts
new file mode 100644
index 000000000..4bc7f2620
--- /dev/null
+++ b/server/lib/worker/parent-process.ts
@@ -0,0 +1,40 @@
+import { join } from 'path'
+import Piscina from 'piscina'
+import { processImage } from '@server/helpers/image-utils'
+import { WORKER_THREADS } from '@server/initializers/constants'
+import { downloadImage } from './workers/image-downloader'
+
+let downloadImageWorker: Piscina
+
+function downloadImageFromWorker (options: Parameters<typeof downloadImage>[0]): Promise<ReturnType<typeof downloadImage>> {
+  if (!downloadImageWorker) {
+    downloadImageWorker = new Piscina({
+      filename: join(__dirname, 'workers', 'image-downloader.js'),
+      concurrentTasksPerWorker: WORKER_THREADS.DOWNLOAD_IMAGE.CONCURRENCY,
+      maxThreads: WORKER_THREADS.DOWNLOAD_IMAGE.MAX_THREADS
+    })
+  }
+
+  return downloadImageWorker.run(options)
+}
+
+// ---------------------------------------------------------------------------
+
+let processImageWorker: Piscina
+
+function processImageFromWorker (options: Parameters<typeof processImage>[0]): Promise<ReturnType<typeof processImage>> {
+  if (!processImageWorker) {
+    processImageWorker = new Piscina({
+      filename: join(__dirname, 'workers', 'image-processor.js'),
+      concurrentTasksPerWorker: WORKER_THREADS.PROCESS_IMAGE.CONCURRENCY,
+      maxThreads: WORKER_THREADS.PROCESS_IMAGE.MAX_THREADS
+    })
+  }
+
+  return processImageWorker.run(options)
+}
+
+export {
+  downloadImageFromWorker,
+  processImageFromWorker
+}