| /* |
| * |
| * Copyright 2016 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #import <Foundation/Foundation.h> |
| #import <SystemConfiguration/SystemConfiguration.h> |
| |
| typedef NS_ENUM(NSInteger, GRPCConnectivityStatus) { |
| GRPCConnectivityUnknown = 0, |
| GRPCConnectivityNoNetwork = 1, |
| GRPCConnectivityCellular = 2, |
| GRPCConnectivityWiFi = 3, |
| }; |
| |
| extern NSString* _Nonnull kGRPCConnectivityNotification; |
| |
| // This interface monitors OS reachability interface for any network status |
| // change. Parties interested in these events should register themselves as |
| // observer. |
| @interface GRPCConnectivityMonitor : NSObject |
| |
| - (nonnull instancetype)init NS_UNAVAILABLE; |
| |
| // Register an object as observer of network status change. \a observer |
| // must have a notification method with one parameter of type |
| // (NSNotification *) and should pass it to parameter \a selector. The |
| // parameter of this notification method is not used for now. |
| + (void)registerObserver:(_Nonnull id)observer selector:(_Nonnull SEL)selector; |
| |
| // Ungegister an object from observers of network status change. |
| + (void)unregisterObserver:(_Nonnull id)observer; |
| |
| @end |