Merge changes from mac-release — adopt DatabaseQueue.

Frameworks/SyncDatabase/SyncDatabase.swift

@@ -9,20 +9,27 @@
 import Foundation
 import RSDatabase
 
-public final class SyncDatabase {
-	
-	private let syncStatusTable: SyncStatusTable
-	
-	public init(databaseFilePath: String) {
-		
-		let queue = RSDatabaseQueue(filepath: databaseFilePath, excludeFromBackup: false)
-		self.syncStatusTable = SyncStatusTable(queue: queue)
-		
-		queue.createTables(usingStatementsSync: SyncDatabase.tableCreationStatements)
-		queue.vacuumIfNeeded()
+public struct SyncDatabase {
 
+	/// When SyncDatabase is suspended, database calls will crash the app.
+	public var isSuspended: Bool {
+		return queue.isSuspended
 	}
-	
+
+	private let syncStatusTable: SyncStatusTable
+	private let queue: DatabaseQueue
+
+	public init(databaseFilePath: String) {
+		let queue = DatabaseQueue(databasePath: databaseFilePath)
+		queue.runCreateStatements(SyncDatabase.tableCreationStatements)
+		queue.vacuumIfNeeded(daysBetweenVacuums: 11)
+		self.queue = queue
+
+		self.syncStatusTable = SyncStatusTable(queue: queue)
+	}
+
+	// MARK: - API
+
 	public func insertStatuses(_ statuses: [SyncStatus], completionHandler: (() -> ())? = nil) {
 		syncStatusTable.insertStatuses(statuses, completionHandler: completionHandler)
 	}
@@ -42,7 +49,19 @@ public final class SyncDatabase {
     public func deleteSelectedForProcessing(_ articleIDs: [String], completionHandler: (() -> ())? = nil) {
 		syncStatusTable.deleteSelectedForProcessing(articleIDs, completionHandler: completionHandler)
 	}
-	
+
+	// MARK: - Suspend and Resume (for iOS)
+
+	/// Close the database and stop running database calls.
+	/// Any pending calls will complete first.
+	public func suspend() {
+		queue.suspend()
+	}
+
+	/// Open the database and allow for running database calls again.
+	public func resume() {
+		queue.resume()
+	}
 }
 
 // MARK: - Private