Implement async dispatcher #221

src/framework/stdext/thread.h

@@ -29,25 +29,42 @@
 #include <boost/thread/mutex.hpp>
 #include <boost/thread/recursive_mutex.hpp>
 #include <boost/thread/locks.hpp>
+#include <boost/thread/future.hpp>
 #include <boost/thread/condition_variable.hpp>
 namespace std {
-  using boost::thread;
+    using boost::thread;
+    using boost::future;
+    using boost::future_status;
+    using boost::promise;
 
-  using boost::mutex;
-  using boost::timed_mutex;
-  using boost::recursive_mutex;
-  using boost::recursive_timed_mutex;
+    using boost::mutex;
+    using boost::timed_mutex;
+    using boost::recursive_mutex;
+    using boost::recursive_timed_mutex;
 
-  using boost::lock_guard;
-  using boost::unique_lock;
+    using boost::lock_guard;
+    using boost::unique_lock;
 
-  using boost::condition_variable;
-  using boost::condition_variable_any;
+    using boost::condition_variable;
+    using boost::condition_variable_any;
+
+    template<typename R>
+    bool is_ready(std::future<R>& f)
+    { return f.wait_for(boost::chrono::seconds(0)) == future_status::ready; }
 }
+  
 #else
 #include <thread>
 #include <condition_variable>
 #include <mutex>
+#include <future>
+
+namespace std {
+    template<typename R>
+    bool is_ready(std::future<R>& f)
+    { return f.wait_for(chrono::seconds(0)) == future_status::ready; }
+};
+
 #endif
 
 #endif