| /* |
| * |
| * Copyright 2016, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #import <Foundation/Foundation.h> |
| #import <SystemConfiguration/SystemConfiguration.h> |
| |
| @interface GRPCReachabilityFlags : NSObject |
| |
| + (nonnull instancetype)flagsWithFlags:(SCNetworkReachabilityFlags)flags; |
| |
| /** |
| * One accessor method to query each of the different flags. Example: |
| |
| @property(nonatomic, readonly) BOOL isCell; |
| |
| */ |
| #define GRPC_XMACRO_ITEM(methodName, FlagName) \ |
| @property(nonatomic, readonly) BOOL methodName; |
| |
| #include "GRPCReachabilityFlagNames.xmacro.h" |
| #undef GRPC_XMACRO_ITEM |
| |
| @property(nonatomic, readonly) BOOL isHostReachable; |
| @end |
| |
| @interface GRPCConnectivityMonitor : NSObject |
| |
| + (nullable instancetype)monitorWithHost:(nonnull NSString *)hostName; |
| |
| - (nonnull instancetype)init NS_UNAVAILABLE; |
| |
| /** |
| * Queue on which callbacks will be dispatched. Default is the main queue. Set |
| * it before calling handleLossWithHandler:. |
| */ |
| // TODO(jcanizales): Default to a serial background queue instead. |
| @property(nonatomic, strong, null_resettable) dispatch_queue_t queue; |
| |
| /** |
| * Calls handler every time the connectivity to this instance's host is lost. If |
| * this instance is released before that happens, the handler won't be called. |
| * Only one handler is active at a time, so if this method is called again |
| * before the previous handler has been called, it might never be called at all |
| * (or yes, if it has already been queued). |
| */ |
| - (void)handleLossWithHandler:(nonnull void (^)())handler |
| wifiStatusChangeHandler:(nonnull void (^)())wifiStatusChangeHandler; |
| @end |