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refactor: hashing service (#21997)

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* download only backup selected assets

* android impl

* fix tests

* limit concurrent hashing to 16

* extension cleanup

* optimized hashing

* hash only selected albums

* remove concurrency limit

* address review comments

* log more info on failure

* add native cancellation

* small batch size on ios, large on android

* fix: get correct resources

* cleanup getResource

* ios better hash cancellation

* handle graceful cancellation android

* do not trigger multiple hashing ops

* ios: fix circular reference, improve cancellation

* kotlin: more cancellation checks

* no need to create result

* cancel previous task

* avoid race condition

* ensure cancellation gets called

* fix cancellation not happening

---------

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>
Co-authored-by: mertalev <101130780+mertalev@users.noreply.github.com>
Co-authored-by: Alex <alex.tran1502@gmail.com>
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shenlong 2025-09-18 10:12:37 +05:30 • committed by GitHub
parent 2411bf8374
commit 532ec10d5f
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4
mobile/lib/constants/constants.dart
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@ -1,3 +1,5 @@
import 'dart:io';
const int noDbId = -9223372036854775808; // from Isar
const double downloadCompleted = -1;
const double downloadFailed = -2;
@ -10,7 +12,7 @@ const int kSyncEventBatchSize = 5000;
const int kFetchLocalAssetsBatchSize = 40000;
// Hash batch limits
const int kBatchHashFileLimit = 256;
final int kBatchHashFileLimit = Platform.isIOS ? 32 : 512;
const int kBatchHashSizeLimit = 1024 * 1024 * 1024; // 1GB
// Secure storage keys