Report whether we can open asset as file descriptor

gapir/cc/android/asset_replay_service.cpp

@@ -29,9 +29,18 @@ namespace gapir {
 
 std::unique_ptr<ReplayService::Payload> AssetReplayService::getPayload(
     const std::string& id) {
+
   AAsset* asset_payload = AAssetManager_open(
       mAssetManager, kAssetPathPayloadBin, AASSET_MODE_STREAMING);
 
+  off64_t outStart;
+  off64_t outLength;
+  int fd = AAsset_openFileDescriptor64(asset_payload, &outStart, &outLength);
+  GAPID_INFO("HUG file descriptor: %d", fd);
+  if (fd < 0) {
+    GAPID_INFO("HUG cannot open payload asset as a file descriptor");
+  }
+
   // Load payload as a string to be able to use ParseFromString from protobuf
   // Payload may be quite big, we may have to use file descriptor access to the
   // asset, but we have to make sure the asset is not compressed.