--- /dev/null
+/*
+ * Copyright 2017 Google
+ *
+ * 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 <GoogleUtilities/GULReachabilityChecker.h>
+
+typedef SCNetworkReachabilityRef (*GULReachabilityCreateWithNameFn)(CFAllocatorRef allocator,
+ const char *host);
+
+typedef Boolean (*GULReachabilitySetCallbackFn)(SCNetworkReachabilityRef target,
+ SCNetworkReachabilityCallBack callback,
+ SCNetworkReachabilityContext *context);
+typedef Boolean (*GULReachabilityScheduleWithRunLoopFn)(SCNetworkReachabilityRef target,
+ CFRunLoopRef runLoop,
+ CFStringRef runLoopMode);
+typedef Boolean (*GULReachabilityUnscheduleFromRunLoopFn)(SCNetworkReachabilityRef target,
+ CFRunLoopRef runLoop,
+ CFStringRef runLoopMode);
+
+typedef void (*GULReachabilityReleaseFn)(CFTypeRef cf);
+
+struct GULReachabilityApi {
+ GULReachabilityCreateWithNameFn createWithNameFn;
+ GULReachabilitySetCallbackFn setCallbackFn;
+ GULReachabilityScheduleWithRunLoopFn scheduleWithRunLoopFn;
+ GULReachabilityUnscheduleFromRunLoopFn unscheduleFromRunLoopFn;
+ GULReachabilityReleaseFn releaseFn;
+};
+
+@interface GULReachabilityChecker (Internal)
+
+- (const struct GULReachabilityApi *)reachabilityApi;
+- (void)setReachabilityApi:(const struct GULReachabilityApi *)reachabilityApi;
+
+@end