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EN: Make sure to that database lock is freed during daily cleanup every 5s

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Delete with limit is not supported on all Androids
This commit is contained in:
Marvin W 2020-10-09 16:24:43 +02:00
parent da7a4e0fdb
commit 775b18c203
No known key found for this signature in database
GPG Key ID: 072E9235DB996F2A
1 changed files with 17 additions and 16 deletions
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33
play-services-nearby-core/src/main/kotlin/org/microg/gms/nearby/exposurenotification/ExposureDatabase.kt
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@ -79,32 +79,33 @@ class ExposureDatabase private constructor(private val context: Context) : SQLit
Log.d(TAG, "Finished database upgrade")
}
fun SQLiteDatabase.delete(table: String, whereClause: String, args: LongArray, limit: Int): Int =
compileStatement("DELETE FROM $table WHERE $whereClause LIMIT $limit").use {
fun SQLiteDatabase.delete(table: String, whereClause: String, args: LongArray): Int =
compileStatement("DELETE FROM $table WHERE $whereClause").use {
args.forEachIndexed { idx, l -> it.bindLong(idx + 1, l) }
it.executeUpdateDelete()
}
fun dailyCleanup(): Boolean = writableDatabase.run {
val start = System.currentTimeMillis()
val rollingStartTime = currentRollingStartNumber * ROLLING_WINDOW_LENGTH * 1000 - TimeUnit.DAYS.toMillis(KEEP_DAYS.toLong())
val advertisements = delete(TABLE_ADVERTISEMENTS, "timestamp < ?", longArrayOf(rollingStartTime), DELETE_LIMIT)
val advertisements = delete(TABLE_ADVERTISEMENTS, "timestamp < ?", longArrayOf(rollingStartTime))
Log.d(TAG, "Deleted on daily cleanup: $advertisements adv")
if (advertisements == DELETE_LIMIT) return@run false
val appLogEntries = delete(TABLE_APP_LOG, "timestamp < ?", longArrayOf(rollingStartTime), DELETE_LIMIT)
if (start + MAX_DELETE_TIME < System.currentTimeMillis()) return@run false
val appLogEntries = delete(TABLE_APP_LOG, "timestamp < ?", longArrayOf(rollingStartTime))
Log.d(TAG, "Deleted on daily cleanup: $appLogEntries applogs")
if (appLogEntries == DELETE_LIMIT) return@run false
val temporaryExposureKeys = delete(TABLE_TEK, "(rollingStartNumber + rollingPeriod) < ?", longArrayOf(rollingStartTime / ROLLING_WINDOW_LENGTH_MS), DELETE_LIMIT)
if (start + MAX_DELETE_TIME < System.currentTimeMillis()) return@run false
val temporaryExposureKeys = delete(TABLE_TEK, "(rollingStartNumber + rollingPeriod) < ?", longArrayOf(rollingStartTime / ROLLING_WINDOW_LENGTH_MS))
Log.d(TAG, "Deleted on daily cleanup: $temporaryExposureKeys teks")
if (temporaryExposureKeys == DELETE_LIMIT) return@run false
val singleCheckedTemporaryExposureKeys = delete(TABLE_TEK_CHECK_SINGLE, "rollingStartNumber < ?", longArrayOf(rollingStartTime / ROLLING_WINDOW_LENGTH_MS - ROLLING_PERIOD), DELETE_LIMIT)
if (start + MAX_DELETE_TIME < System.currentTimeMillis()) return@run false
val singleCheckedTemporaryExposureKeys = delete(TABLE_TEK_CHECK_SINGLE, "rollingStartNumber < ?", longArrayOf(rollingStartTime / ROLLING_WINDOW_LENGTH_MS - ROLLING_PERIOD))
Log.d(TAG, "Deleted on daily cleanup: $singleCheckedTemporaryExposureKeys tcss")
if (singleCheckedTemporaryExposureKeys == DELETE_LIMIT) return@run false
val fileCheckedTemporaryExposureKeys = delete(TABLE_TEK_CHECK_FILE, "endTimestamp < ?", longArrayOf(rollingStartTime), DELETE_LIMIT)
if (start + MAX_DELETE_TIME < System.currentTimeMillis()) return@run false
val fileCheckedTemporaryExposureKeys = delete(TABLE_TEK_CHECK_FILE, "endTimestamp < ?", longArrayOf(rollingStartTime))
Log.d(TAG, "Deleted on daily cleanup: $fileCheckedTemporaryExposureKeys tcfs")
if (fileCheckedTemporaryExposureKeys == DELETE_LIMIT) return@run false
val appPerms = delete(TABLE_APP_PERMS, "timestamp < ?", longArrayOf(System.currentTimeMillis() - CONFIRM_PERMISSION_VALIDITY), DELETE_LIMIT)
if (start + MAX_DELETE_TIME < System.currentTimeMillis()) return@run false
val appPerms = delete(TABLE_APP_PERMS, "timestamp < ?", longArrayOf(System.currentTimeMillis() - CONFIRM_PERMISSION_VALIDITY))
Log.d(TAG, "Deleted on daily cleanup: $appPerms perms")
if (appPerms == DELETE_LIMIT) return@run false
if (start + MAX_DELETE_TIME < System.currentTimeMillis()) return@run false
execSQL("VACUUM;")
Log.d(TAG, "Done vacuuming")
return@run true
@ -405,7 +406,7 @@ class ExposureDatabase private constructor(private val context: Context) : SQLit
found++
}
}
Log.d(TAG, "Processed $processed keys, found $found matches, ignored $ignored keys that are older than our scanning efforts ($oldestRpi)")
Log.d(TAG, "Processed $processed keys, found $found matches, ignored $ignored keys that are older than our scanning efforts ($oldestRpi)")
executor.shutdown()
for (update in updates) {
val matched = compileStatement("SELECT COUNT(tcsid) FROM $TABLE_TEK_CHECK_FILE_MATCH WHERE keyData = ? AND rollingStartNumber = ? AND rollingPeriod = ?").use {
@ -704,7 +705,7 @@ class ExposureDatabase private constructor(private val context: Context) : SQLit
companion object {
private const val DB_NAME = "exposure.db"
private const val DB_VERSION = 5
private const val DELETE_LIMIT = 1000
private const val MAX_DELETE_TIME = 5000L
private const val TABLE_ADVERTISEMENTS = "advertisements"
private const val TABLE_APP_LOG = "app_log"
private const val TABLE_TEK = "tek"