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getOrPut is not thread safe, so ensure that no multiple instance will be created per data store (#950)

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This commit is contained in:
Benoit Marty
2023-07-24 15:01:48 +02:00
parent 83d47957e5
commit 94bc2ce53d
1 changed files with 7 additions and 5 deletions
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libraries/pushstore/impl/src/main/kotlin/io/element/android/libraries/pushstore/impl/DefaultUserPushStoreFactory.kt
+7 -5
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@@ -41,11 +41,13 @@ class DefaultUserPushStoreFactory @Inject constructor(
// We can have only one class accessing a single data store, so keep a cache of them. // We can have only one class accessing a single data store, so keep a cache of them.
private val cache = mutableMapOf<SessionId, UserPushStore>() private val cache = mutableMapOf<SessionId, UserPushStore>()
override fun create(userId: SessionId): UserPushStore { override fun create(userId: SessionId): UserPushStore {
return cache.getOrPut(userId) { return synchronized(cache) {
UserPushStoreDataStore( cache.getOrPut(userId) {
context = context, UserPushStoreDataStore(
userId = userId context = context,
) userId = userId
)
}
} }
} }