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[MS-1030] Implement thread-safe access to Realm instance using Mutex #1229

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Merged
meladRaouf merged 1 commit into from
Jun 18, 2025
Merged

[MS-1030] Implement thread-safe access to Realm instance using Mutex #1229

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9 changes: 6 additions & 3 deletions ...store/src/main/java/com/simprints/infra/enrolment/records/realm/store/RealmWrapperImpl.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,8 @@ import io.realm.kotlin.MutableRealm
import io.realm.kotlin.Realm
import io.realm.kotlin.RealmConfiguration
import kotlinx.coroutines.CoroutineDispatcher
import kotlinx.coroutines.sync.Mutex
import kotlinx.coroutines.sync.withLock
import kotlinx.coroutines.withContext
import javax.inject.Inject
import javax.inject.Singleton
Expand All @@ -34,18 +36,19 @@ class RealmWrapperImpl @Inject constructor(
// https://www.mongodb.com/docs/realm/sdk/kotlin/realm-database/frozen-arch/#thread-safe-realms
private lateinit var realm: Realm
private lateinit var config: RealmConfiguration
private val mutex = Mutex()

private fun getRealm(): Realm {
private suspend fun getRealm(): Realm {
if (!this::realm.isInitialized) {
config = createAndSaveRealmConfig()
realm = createRealm()
}
return realm
}

private fun createRealm(): Realm {
private suspend fun createRealm(): Realm = mutex.withLock {
Simber.d("[RealmWrapperImpl] getting new realm instance", tag = REALM_DB)
return try {
try {
try {
Realm.open(config)
} catch (ex: IllegalStateException) {
Expand Down