ConcurrentQueue: Update to HEAD

include/icsneo/third-party/concurrentqueue/benchmarks/dlib/threads/rsignaler_extension.h

@@ -0,0 +1,90 @@
+// Copyright (C) 2006  Davis E. King (davis@dlib.net)
+// License: Boost Software License   See LICENSE.txt for the full license.
+#ifndef DLIB_RSIGNALER_EXTENSIOn_
+#define DLIB_RSIGNALER_EXTENSIOn_ 
+
+#include "rsignaler_extension_abstract.h"
+#include "rmutex_extension.h"
+
+namespace dlib
+{
+
+// ----------------------------------------------------------------------------------------
+
+    class rsignaler
+    {
+    public:
+        rsignaler (
+            const rmutex& associated_mutex
+        ) : 
+            assoc_mutex(associated_mutex),
+            s(m)
+        {}
+
+        ~rsignaler (
+        )
+        {}
+
+        void wait (
+        ) const
+        {
+            m.lock();
+            const unsigned long lock_count = assoc_mutex.lock_count();
+            assoc_mutex.unlock(lock_count);
+            s.wait();
+            m.unlock();
+            assoc_mutex.lock(lock_count);
+        }
+
+        bool wait_or_timeout (
+            unsigned long milliseconds
+        ) const
+        {
+            m.lock();
+            const unsigned long lock_count = assoc_mutex.lock_count();
+            assoc_mutex.unlock(lock_count);
+            bool res = s.wait_or_timeout(milliseconds);
+            m.unlock();
+            assoc_mutex.lock(lock_count);
+            return res;
+        }
+
+        void signal (
+        ) const 
+        { 
+            m.lock();
+            s.signal(); 
+            m.unlock();
+        }
+
+        void broadcast (
+        ) const 
+        { 
+            m.lock();
+            s.broadcast(); 
+            m.unlock();
+        }
+
+        const rmutex& get_mutex (
+        ) const { return assoc_mutex; }
+
+    private:
+
+        const rmutex& assoc_mutex;
+        mutex m;
+        signaler s;
+
+
+        // restricted functions
+        rsignaler(rsignaler&);        // copy constructor
+        rsignaler& operator=(rsignaler&);    // assignment operator
+    };
+
+// ----------------------------------------------------------------------------------------
+
+}
+
+#endif // DLIB_RSIGNALER_EXTENSIOn_ 
+
+
+