Jetpack DataStore 本机库已添加到捆绑包中：libdatastore_shared_counter.so - 那是什么？

Question

最近我注意到，在使用 Jetpack Datastore 的新项目中，我在应用程序包中添加了一个新的本机库：

bundle.abb\base\lib\arm64-v8a\libdatastore_shared_counter.so

那到底是什么？

是的，我以前没有：

androidxDataStore = "1.0.0"

但更新后得到了：

androidxDataStore = "1.1.0"

Answer 1

这似乎与：

androidx/datastore/multiprocess/SharedCounter.kt

有关，它可能提供后端访问控制。参见包

androidx.datastore.multiprocess

，例如

DataStoreImpl<T>

：

/**
 * If downstream flow is UnInitialized, no data has been read yet, we need to trigger a new
 * read then start emitting values once we have seen a new value (or exception).
 *
 * If downstream flow has a ReadException, there was an exception last time we tried to read
 * data. We need to trigger a new read then start emitting values once we have seen a new
 * value (or exception).
 *
 * If downstream flow has Data, we should start emitting from downstream flow as long as its
 * version is not stale compared to the version read from the shared counter when we enter
 * the flow.
 *
 * If Downstream flow is Final, the scope has been cancelled so the data store is no
 * longer usable. We should just propagate this exception.
 *
 * State always starts at null. null can transition to ReadException, Data or
 * Final. ReadException can transition to another ReadException, Data or Final.
 * Data can transition to another Data or Final. Final will not change.
 */