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cocos2d-x/cocos/platform/ios/CCReachability.h

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+/****************************************************************************
+ Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
+
+ http://www.cocos2d-x.org
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ ****************************************************************************/
+#pragma once
+
+#include "base/CCRef.h"
+
+#include <string>
+#include <functional>
+#include <SystemConfiguration/SystemConfiguration.h>
+
+struct sockaddr;
+
+NS_CC_BEGIN
+
+class Reachability final : public Ref
+{
+public:
+    enum class NetworkStatus : uint8_t
+    {
+        NOT_REACHABLE,
+        REACHABLE_VIA_WIFI,
+        REACHABLE_VIA_WWAN
+    };
+
+    /*!
+     * Use to check the reachability of a given host name.
+     */
+    static Reachability* createWithHostName(const std::string& hostName);
+
+    /*!
+     * Use to check the reachability of a given IP address.
+     */
+    static Reachability* createWithAddress(const struct sockaddr* hostAddress);
+
+    /*!
+     * Checks whether the default route is available. Should be used by applications that do not connect to a particular host.
+     */
+    static Reachability* createForInternetConnection();
+
+    using ReachabilityCallback = std::function<void(Reachability*, NetworkStatus, void*)>;
+
+    /*!
+     * Start listening for reachability notifications on the current run loop.
+     */
+    bool startNotifier(const ReachabilityCallback& cb, void* userData);
+    void stopNotifier();
+
+    NetworkStatus getCurrentReachabilityStatus()const;
+
+    /*!
+     * WWAN may be available, but not active until a connection has been established. WiFi may require a connection for VPN on Demand.
+     */
+    bool isConnectionRequired() const;
+
+private:
+
+    Reachability();
+    ~Reachability();
+
+    static void onReachabilityCallback(SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void* info);
+
+    ReachabilityCallback _callback;
+    void* _userData;
+    SCNetworkReachabilityRef _reachabilityRef;
+};
+
+NS_CC_END
+