@@ -21,10 +21,11 @@
 
 OF_ASSUME_NONNULL_BEGIN
 
 @class OFArray OF_GENERIC(ObjectType);
 @class OFDNSResolverQuery;
+@class OFDate;
 @class OFDictionary OF_GENERIC(KeyType, ObjectType);
 @class OFMutableDictionary OF_GENERIC(KeyType, ObjectType);
 @class OFNumber;
 @class OFUDPSocket;
 
@@ -61,10 +62,15 @@
 
 /*!
  * @class OFDNSResolver OFDNSResolver.h ObjFW/OFDNSResolver.h
  *
  * @brief A class for resolving DNS names.
+ *
+ * @note If you change any of the properties, make sure to set
+ *	 @ref configReloadInterval to 0, as otherwise your changes will be
+ *	 reverted back to the system configuration on the next periodic config
+ *	 reload.
  */
 @interface OFDNSResolver: OFObject
 {
 	OFDictionary OF_GENERIC(OFString *, OFArray OF_GENERIC(OFString *) *)
 	    *_staticHosts;
@@ -71,10 +77,12 @@
 	OFArray OF_GENERIC(OFString *) *_nameServers;
 	OFString *_Nullable _localDomain;
 	OFArray OF_GENERIC(OFString *) *_searchDomains;
 	size_t _minNumberOfDotsInAbsoluteName;
 	bool _usesTCP;
+	of_time_interval_t _configReloadInterval;
+	OFDate *_lastConfigReload;
 	OFUDPSocket *_IPv4Socket;
 #ifdef OF_HAVE_IPV6
 	OFUDPSocket *_IPv6Socket;
 #endif
 	OFMutableDictionary OF_GENERIC(OFNumber *, OFDNSResolverQuery *)
@@ -114,10 +122,17 @@
 /*!
  * @brief Whether the resolver uses TCP to talk to a name server.
  */
 @property (nonatomic) bool usesTCP;
 
+/*!
+ * @brief The interval in seconds in which the config should be reloaded.
+ *
+ * Setting this to 0 disables config reloading.
+ */
+@property (nonatomic) of_time_interval_t configReloadInterval;
+
 /*!
  * @brief Creates a new, autoreleased OFDNSResolver.
  */
 + (instancetype)resolver;