Function fetchFromIndexedDB

test/fetch/test_fetch_cached_xhr.cpp:16–36

Fetch file without XHRing.

// Fetch file without XHRing.
void fetchFromIndexedDB() {
  emscripten_fetch_attr_t attr;
  emscripten_fetch_attr_init(&attr);
  strcpy(attr.requestMethod, "GET");
  attr.onsuccess = [](emscripten_fetch_t *fetch) {
    assert(fetch->numBytes == fetch->totalBytes);
    assert(fetch->data != 0);
    printf("Finished downloading %llu bytes\n", fetch->numBytes);
    emscripten_fetch_close(fetch);
    exit(0);
  };
  attr.onprogress = [](emscripten_fetch_t *fetch) {
    if (fetch->totalBytes > 0) {
      printf("Downloading.. %.2f%% complete.\n", (fetch->dataOffset + fetch->numBytes) * 100.0 / fetch->totalBytes);
    } else {
      printf("Downloading.. %lld bytes complete.\n", fetch->dataOffset + fetch->numBytes);
    }
  };
  attr.attributes = EMSCRIPTEN_FETCH_APPEND | EMSCRIPTEN_FETCH_NO_DOWNLOAD;
  emscripten_fetch_t *fetch = emscripten_fetch(&attr, "gears.png");
}

// XHR and store to cache.
int main() {