feat add rxcpp

3party/rxcpp/schedulers/rx-immediate.hpp

@@ -0,0 +1,84 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+
+#pragma once
+
+#if !defined(RXCPP_RX_SCHEDULER_IMMEDIATE_HPP)
+#define RXCPP_RX_SCHEDULER_IMMEDIATE_HPP
+
+#include "../rx-includes.hpp"
+
+namespace rxcpp {
+
+namespace schedulers {
+
+struct immediate : public scheduler_interface
+{
+private:
+    typedef immediate this_type;
+    immediate(const this_type&);
+
+    struct immediate_worker : public worker_interface
+    {
+    private:
+        typedef immediate_worker this_type;
+        immediate_worker(const this_type&);
+    public:
+        virtual ~immediate_worker()
+        {
+        }
+        immediate_worker()
+        {
+        }
+
+        virtual clock_type::time_point now() const {
+            return clock_type::now();
+        }
+
+        virtual void schedule(const schedulable& scbl) const {
+            if (scbl.is_subscribed()) {
+                // allow recursion
+                recursion r(true);
+                scbl(r.get_recurse());
+            }
+        }
+
+        virtual void schedule(clock_type::time_point when, const schedulable& scbl) const {
+            std::this_thread::sleep_until(when);
+            if (scbl.is_subscribed()) {
+                // allow recursion
+                recursion r(true);
+                scbl(r.get_recurse());
+            }
+        }
+    };
+
+    std::shared_ptr<immediate_worker> wi;
+
+public:
+    immediate()
+        : wi(std::make_shared<immediate_worker>())
+    {
+    }
+    virtual ~immediate()
+    {
+    }
+
+    virtual clock_type::time_point now() const {
+        return clock_type::now();
+    }
+
+    virtual worker create_worker(composite_subscription cs) const {
+        return worker(std::move(cs), wi);
+    }
+};
+
+inline const scheduler& make_immediate() {
+    static scheduler instance = make_scheduler<immediate>();
+    return instance;
+}
+
+}
+
+}
+
+#endif