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+/*
+This file is a part of the JThread package, which contains some object-
+oriented thread wrappers for different thread implementations.
+
+Copyright (c) 2000-2006 Jori Liesenborgs (jori.liesenborgs@gmail.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef THREADING_EVENT_H
+#define THREADING_EVENT_H
+
+#if __cplusplus >= 201103L
+ #include <condition_variable>
+ #include "threading/mutex.h"
+ #include "threading/mutex_auto_lock.h"
+#elif defined(_WIN32)
+ #ifndef WIN32_LEAN_AND_MEAN
+ #define WIN32_LEAN_AND_MEAN
+ #endif
+ #include <windows.h>
+#else
+ #include <pthread.h>
+#endif
+
+
+/** A syncronization primitive that will wake up one waiting thread when signaled.
+ * Calling @c signal() multiple times before a waiting thread has had a chance
+ * to notice the signal will wake only one thread. Additionally, if no threads
+ * are waiting on the event when it is signaled, the next call to @c wait()
+ * will return (almost) immediately.
+ */
+class Event {
+public:
+ Event();
+#if __cplusplus < 201103L
+ ~Event();
+#endif
+ void wait();
+ void signal();
+
+private:
+#if __cplusplus >= 201103L
+ std::condition_variable cv;
+ Mutex mutex;
+ bool notified;
+#elif defined(_WIN32)
+ HANDLE event;
+#else
+ pthread_cond_t cv;
+ pthread_mutex_t mutex;
+ bool notified;
+#endif
+};
+
+#endif