Add AccountManager.resumeAll, Account.resume. Add suspend() and resume() to AccountDelegate and to individual AccountDelegate instances.

Frameworks/Account/Account.swift

@@ -407,9 +407,16 @@ public final class Account: DisplayNameProvider, UnreadCountProvider, Container,
 	
 	public func suspend() {
 		delegate.cancelAll(for: self)
+		delegate.suspend()
+		database.suspend()
 		save()
 	}
 
+	public func resume() {
+		database.resume()
+		delegate.resume()
+	}
+
 	public func save() {
 		metadataFile.save()
 		webFeedMetadataFile.save()

Frameworks/Account/AccountDelegate.swift

@@ -51,4 +51,7 @@ protocol AccountDelegate {
 
 	static func validateCredentials(transport: Transport, credentials: Credentials, endpoint: URL?, completion: @escaping (Result<Credentials?, Error>) -> Void)
 
+	// For iOS, so we can suspend and resume properly.
+	func suspend() // Make sure no SQLite databases are open.
+	func resume()
 }

Frameworks/Account/AccountManager.swift

@@ -167,6 +167,10 @@ public final class AccountManager: UnreadCountProvider {
 		accounts.forEach { $0.suspend() }
 	}
 
+	public func resumeAll() {
+		accounts.forEach { $0.resume() }
+	}
+
 	public func refreshAll(errorHandler: @escaping (Error) -> Void, completion: (() ->Void)? = nil) {
 		let group = DispatchGroup()
 		

Frameworks/Account/FeedWrangler/FeedWranglerAccountDelegate.swift

@@ -438,6 +438,18 @@ final class FeedWranglerAccountDelegate: AccountDelegate {
 			}
 		}
 	}
+
+	// MARK: Suspend and Resume (for iOS)
+
+	/// Suspend the sync database so that it can close its SQLite file.
+	func suspend() {
+		database.suspend()
+	}
+
+	/// Resume the sync database — let it reopen its SQLite file.
+	func resume() {
+		database.resume()
+	}
 }
 
 // MARK: Private

Frameworks/Account/Feedbin/FeedbinAccountDelegate.swift

@@ -556,6 +556,17 @@ final class FeedbinAccountDelegate: AccountDelegate {
 		
 	}
 
+	// MARK: Suspend and Resume (for iOS)
+
+	/// Suspend the sync database so that it can close its SQLite file.
+	func suspend() {
+		database.suspend()
+	}
+
+	/// Resume the sync database — let it reopen its SQLite file.
+	func resume() {
+		database.resume()
+	}
 }
 
 // MARK: Private

Frameworks/Account/Feedly/FeedlyAccountDelegate.swift

@@ -510,4 +510,16 @@ final class FeedlyAccountDelegate: AccountDelegate {
 		assertionFailure("An `account` instance should enqueue an \(FeedlyRefreshAccessTokenOperation.self) instead.")
 		completion(.success(credentials))
 	}
+
+	// MARK: Suspend and Resume (for iOS)
+
+	/// Suspend the sync database so that it can close its SQLite file.
+	func suspend() {
+		database.suspend()
+	}
+
+	/// Resume the sync database — let it reopen its SQLite file.
+	func resume() {
+		database.resume()
+	}
 }

Frameworks/Account/LocalAccount/LocalAccountDelegate.swift

@@ -202,4 +202,14 @@ final class LocalAccountDelegate: AccountDelegate {
 	static func validateCredentials(transport: Transport, credentials: Credentials, endpoint: URL? = nil, completion: (Result<Credentials?, Error>) -> Void) {
 		return completion(.success(nil))
 	}
+
+	// MARK: Suspend and Resume (for iOS)
+
+	func suspend() {
+		// Nothing to do
+	}
+
+	func resume() {
+		// Nothing to do
+	}
 }

Frameworks/Account/ReaderAPI/ReaderAPIAccountDelegate.swift

@@ -437,6 +437,17 @@ final class ReaderAPIAccountDelegate: AccountDelegate {
 		
 	}
 
+	// MARK: Suspend and Resume (for iOS)
+
+	/// Suspend the sync database so that it can close its SQLite file.
+	func suspend() {
+		database.suspend()
+	}
+
+	/// Resume the sync database — let it reopen its SQLite file.
+	func resume() {
+		database.resume()
+	}
 }
 
 // MARK: Private