Add the ability to set job priority.

app/src/main/java/org/thoughtcrime/securesms/database/JobDatabase.kt

@@ -59,6 +59,7 @@ class JobDatabase(
     const val SERIALIZED_DATA = "serialized_data"
     const val SERIALIZED_INPUT_DATA = "serialized_input_data"
     const val IS_RUNNING = "is_running"
+    const val PRIORITY = "priority"
 
     val CREATE_TABLE =
       """
@@ -75,7 +76,8 @@ class JobDatabase(
           $SERIALIZED_DATA TEXT, 
           $SERIALIZED_INPUT_DATA TEXT DEFAULT NULL, 
           $IS_RUNNING INTEGER,
-          $NEXT_BACKOFF_INTERVAL INTEGER
+          $NEXT_BACKOFF_INTERVAL INTEGER,
+          $PRIORITY INTEGER DEFAULT 0
         )
       """.trimIndent()
   }
@@ -145,6 +147,10 @@ class JobDatabase(
       db.execSQL("ALTER TABLE job_spec ADD COLUMN next_backoff_interval INTEGER")
       db.execSQL("UPDATE job_spec SET last_run_attempt_time = 0")
     }
+
+    if (oldVersion < 3) {
+      db.execSQL("ALTER TABLE job_spec ADD COLUMN priority INTEGER DEFAULT 0")
+    }
   }
 
   override fun onOpen(db: SQLiteDatabase) {
@@ -189,7 +195,8 @@ class JobDatabase(
       Jobs.LIFESPAN,
       Jobs.SERIALIZED_DATA,
       Jobs.SERIALIZED_INPUT_DATA,
-      Jobs.IS_RUNNING
+      Jobs.IS_RUNNING,
+      Jobs.PRIORITY
     )
     return readableDatabase
       .query(Jobs.TABLE_NAME, columns, null, null, null, null, "${Jobs.CREATE_TIME}, ${Jobs.ID} ASC")
@@ -329,7 +336,8 @@ class JobDatabase(
         Jobs.LIFESPAN to job.lifespan,
         Jobs.SERIALIZED_DATA to job.serializedData,
         Jobs.SERIALIZED_INPUT_DATA to job.serializedInputData,
-        Jobs.IS_RUNNING to if (job.isRunning) 1 else 0
+        Jobs.IS_RUNNING to if (job.isRunning) 1 else 0,
+        Jobs.PRIORITY to job.priority
       )
       .run(SQLiteDatabase.CONFLICT_IGNORE)
   }
@@ -378,7 +386,8 @@ class JobDatabase(
       serializedData = cursor.requireBlob(Jobs.SERIALIZED_DATA),
       serializedInputData = cursor.requireBlob(Jobs.SERIALIZED_INPUT_DATA),
       isRunning = cursor.requireBoolean(Jobs.IS_RUNNING),
-      isMemoryOnly = false
+      isMemoryOnly = false,
+      priority = cursor.requireInt(Jobs.PRIORITY)
     )
   }
 
@@ -416,7 +425,7 @@ class JobDatabase(
 
   companion object {
     private val TAG = Log.tag(JobDatabase::class.java)
-    private const val DATABASE_VERSION = 2
+    private const val DATABASE_VERSION = 3
     private const val DATABASE_NAME = "signal-jobmanager.db"
 
     @SuppressLint("StaticFieldLeak")