1 files changed, 52 insertions, 0 deletions
diff --git a/include/mbgl/util/run_loop.hpp b/include/mbgl/util/run_loop.hpp
new file mode 100644
index 0000000000..f0318d2026
--- /dev/null
+++ b/include/mbgl/util/run_loop.hpp
@@ -0,0 +1,52 @@
+#ifndef MBGL_UTIL_RUN_LOOP
+#define MBGL_UTIL_RUN_LOOP
+
+#include <mutex>
+#include <functional>
+#include <queue>
+
+namespace uv {
+class async;
+class loop;
+}
+
+namespace mbgl {
+namespace util {
+
+template <typename T> class Thread;
+
+class RunLoop {
+    friend Thread<RunLoop>;
+
+protected:
+    // These are called by the Thread<> wrapper.
+    RunLoop();
+    ~RunLoop();
+
+    // Called by the Thread<> wrapper to start the loop. When you implement this
+    // method in a child class, you *must* call this function as the last action.
+    void start();
+
+protected:
+    // Called by the Thread<> wrapper to terminate this loop.
+    void stop();
+
+private:
+    // Invokes function in the run loop.
+    void process();
+
+public:
+    // Schedules a function to be executed as part of this run loop.
+    void invoke(std::function<void()> fn);
+
+private:
+    const std::unique_ptr<uv::loop> runloop;
+    const std::unique_ptr<uv::async> runloopAsync;
+    std::mutex runloopMutex;
+    std::queue<std::function<void()>> runloopQueue;
+};
+
+}
+}
+
+#endif
+\ No newline at end of file