[core] Add client defined network status

This API will let the client force a network status. If set
to Offline, we won't make network requests.

When set make to Online, it will trigger the pending requests
and try to fetch tiles from the network.

1 files changed, 10 insertions, 0 deletions

diff --git a/include/mbgl/storage/network_status.hpp b/include/mbgl/storage/network_status.hpp
index 2a0ab78edd..4202793661 100644
--- a/include/mbgl/storage/network_status.hpp
+++ b/include/mbgl/storage/network_status.hpp
@@ -1,6 +1,7 @@
 #ifndef MBGL_STORAGE_NETWORK_STATUS
 #define MBGL_STORAGE_NETWORK_STATUS
 
+#include <atomic>
 #include <mutex>
 #include <set>
 
@@ -12,12 +13,21 @@ class AsyncTask;
 
 class NetworkStatus {
 public:
+    enum class Status : uint8_t {
+        Online,
+        Offline,
+    };
+
+    Status Get();
+    void Set(Status);
+
     static void Reachable();
 
     static void Subscribe(util::AsyncTask* async);
     static void Unsubscribe(util::AsyncTask* async);
 
 private:
+    static std::atomic<bool> online;
     static std::mutex mtx;
     static std::set<util::AsyncTask*> observers;
 };