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DB: Force a wal_checkpoint after every repo update to keep the wal file small (fixes #2588)

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DerGenaue
2024-10-02 20:31:26 +02:00
committed by Torsten Grote
parent 1b655769db
commit 38ce497525
2 changed files with 20 additions and 0 deletions
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18
libs/database/src/main/java/org/fdroid/database/AppPrefsDao.kt
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@@ -8,10 +8,20 @@ import androidx.room.Insert
import androidx.room.MapInfo
import androidx.room.OnConflictStrategy.Companion.REPLACE
import androidx.room.Query
import androidx.room.RawQuery
import androidx.sqlite.db.SimpleSQLiteQuery
import androidx.sqlite.db.SupportSQLiteQuery
public interface AppPrefsDao {
public fun getAppPrefs(packageName: String): LiveData<AppPrefs>
public fun update(appPrefs: AppPrefs)
/**
* Force a checkpoint on the SQLite WAL such that the file size gets reduced.
* Blocks until concurrent reads have finished.
* Useful to call after large inserts (repo update)
*/
public fun walCheckpoint()
}
@Dao
@@ -48,4 +58,12 @@ internal interface AppPrefsDaoInt : AppPrefsDao {
@Insert(onConflict = REPLACE)
override fun update(appPrefs: AppPrefs)
override fun walCheckpoint() {
rawCheckpoint((SimpleSQLiteQuery("pragma wal_checkpoint(truncate)")))
}
@RawQuery
fun rawCheckpoint(supportSQLiteQuery: SupportSQLiteQuery): Int
}