lmz radames commited on
Commit
f01442d
1 Parent(s): 6b37b03

force cache using cache api (#6)

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- force cache using cache api (b00734499ee1c83d967229634a1257b7956246aa)


Co-authored-by: Radamés Ajna <[email protected]>

Files changed (1) hide show
  1. yoloWorker.js +14 -3
yoloWorker.js CHANGED
@@ -1,6 +1,19 @@
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  //load the candle yolo wasm module
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  import init, { Model, ModelPose } from "./build/m.js";
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  class Yolo {
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  static instance = {};
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  // Retrieve the YOLO model. When called for the first time,
@@ -11,9 +24,7 @@ class Yolo {
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  await init();
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  self.postMessage({ status: `loading model ${modelID}:${modelSize}` });
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- const modelRes = await fetch(modelURL);
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- const yoloArrayBuffer = await modelRes.arrayBuffer();
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- const weightsArrayU8 = new Uint8Array(yoloArrayBuffer);
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  if (/pose/.test(modelID)) {
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  // if pose model, use ModelPose
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  this.instance[modelID] = new ModelPose(weightsArrayU8, modelSize);
 
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  //load the candle yolo wasm module
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  import init, { Model, ModelPose } from "./build/m.js";
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+ async function fetchArrayBuffer(url) {
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+ const cacheName = "yolo-candle-cache";
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+ const cache = await caches.open(cacheName);
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+ const cachedResponse = await cache.match(url);
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+ if (cachedResponse) {
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+ const data = await cachedResponse.arrayBuffer();
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+ return new Uint8Array(data);
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+ }
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+ const res = await fetch(url, { cache: "force-cache" });
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+ cache.put(url, res.clone());
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+ return new Uint8Array(await res.arrayBuffer());
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+ }
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+
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  class Yolo {
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  static instance = {};
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  // Retrieve the YOLO model. When called for the first time,
 
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  await init();
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  self.postMessage({ status: `loading model ${modelID}:${modelSize}` });
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+ const weightsArrayU8 = await fetchArrayBuffer(modelURL);
 
 
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  if (/pose/.test(modelID)) {
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  // if pose model, use ModelPose
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  this.instance[modelID] = new ModelPose(weightsArrayU8, modelSize);