Allow updating some database settings.

Telegram/SourceFiles/storage/cache/storage_cache_database.cpp

@@ -22,6 +22,12 @@ void Database::reconfigure(const Settings &settings) {
 	});
 }
 
+void Database::updateSettings(const SettingsUpdate &update) {
+	_wrapped.with([update](Implementation &unwrapped) mutable {
+		unwrapped.updateSettings(update);
+	});
+}
+
 void Database::open(EncryptionKey &&key, FnMut<void(Error)> &&done) {
 	_wrapped.with([
 		key = std::move(key),

Telegram/SourceFiles/storage/cache/storage_cache_database.h

@@ -24,9 +24,11 @@ class DatabaseObject;
 class Database {
 public:
 	using Settings = details::Settings;
+	using SettingsUpdate = details::SettingsUpdate;
 	Database(const QString &path, const Settings &settings);
 
 	void reconfigure(const Settings &settings);
+	void updateSettings(const SettingsUpdate &update);
 
 	void open(EncryptionKey &&key, FnMut<void(Error)> &&done = nullptr);
 	void close(FnMut<void()> &&done = nullptr);

Telegram/SourceFiles/storage/cache/storage_cache_database_object.cpp

@@ -92,6 +92,14 @@ void DatabaseObject::reconfigure(const Settings &settings) {
 	checkSettings();
 }
 
+void DatabaseObject::updateSettings(const SettingsUpdate &update) {
+	_settings.totalSizeLimit = update.totalSizeLimit;
+	_settings.totalTimeLimit = update.totalTimeLimit;
+	checkSettings();
+
+	optimize();
+}
+
 void DatabaseObject::checkSettings() {
 	Expects(_settings.staleRemoveChunk > 0);
 	Expects(_settings.maxDataSize > 0

Telegram/SourceFiles/storage/cache/storage_cache_database_object.h

@@ -31,6 +31,7 @@ public:
 		const QString &path,
 		const Settings &settings);
 	void reconfigure(const Settings &settings);
+	void updateSettings(const SettingsUpdate &update);
 
 	void open(EncryptionKey &&key, FnMut<void(Error)> &&done);
 	void close(FnMut<void()> &&done);

Telegram/SourceFiles/storage/cache/storage_cache_types.h

@@ -66,13 +66,18 @@ struct Settings {
 
 	bool trackEstimatedTime = true;
 	int64 totalSizeLimit = 1024 * 1024 * 1024;
-	size_type totalTimeLimit = 30 * 86400; // One month in seconds.
+	size_type totalTimeLimit = 31 * 24 * 60 * 60; // One month in seconds.
 	crl::time_type pruneTimeout = 5 * crl::time_type(1000);
 	crl::time_type maxPruneCheckTimeout = 3600 * crl::time_type(1000);
 
 	bool clearOnWrongKey = false;
 };
 
+struct SettingsUpdate {
+	int64 totalSizeLimit = Settings().totalSizeLimit;
+	size_type totalTimeLimit = Settings().totalTimeLimit;
+};
+
 struct TaggedValue {
 	TaggedValue() = default;
 	TaggedValue(QByteArray &&bytes, uint8 tag);