[tvm] branch unity updated: [Unity] Cache ndarray-cache.json (#14722)

[tqchen]

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tqchen pushed a commit to branch unity
in repository https://gitbox.apache.org/repos/asf/tvm.git


The following commit(s) were added to refs/heads/unity by this push:
     new 84e286be71 [Unity] Cache ndarray-cache.json (#14722)
84e286be71 is described below

commit 84e286be7194456d7d4f2d384f790e9f731b5da3
Author: Dustin Brett <dustinbr...@gmail.com>
AuthorDate: Wed Apr 26 06:47:07 2023 -0700

    [Unity] Cache ndarray-cache.json (#14722)
    
    Cache ndarray-cache.json also
---
 web/src/runtime.ts | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/web/src/runtime.ts b/web/src/runtime.ts
index 3b77aba88f..fbceed1df9 100644
--- a/web/src/runtime.ts
+++ b/web/src/runtime.ts
@@ -1372,11 +1372,24 @@ export class Instance implements Disposable {
    */
   async fetchNDArrayCache(ndarrayCacheUrl: string, device: DLDevice) : 
Promise<any> {
     const jsonUrl = new URL("ndarray-cache.json", ndarrayCacheUrl).href;
-    var list;
-    try {
-      list = await (await fetch(jsonUrl)).json();
-    } catch(err) {
-      this.env.logger("Cannot fetch " + jsonUrl);
+    const request = new Request(jsonUrl);
+    const cache = await caches.open("tvmjs");
+    let result = await cache.match(request);
+    if (result === undefined) {
+      await cache.add(request);
+      result = await cache.match(request);
+    }
+    if (result === undefined) {
+      this.env.logger("Error: Cannot cache " + jsonUrl + ", reloading will be 
slow");
+      try {
+        result = await fetch(request);
+      } catch(err) {
+        this.env.logger("Cannot fetch " + jsonUrl);
+      }
+    }
+    let list;
+    if (result instanceof Response) {
+      list = await result.json();
     }
     await this.fetchNDArrayCacheInternal(
       ndarrayCacheUrl,