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diff --git a/os_wrappers/Event.h b/os_wrappers/Event.h
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+/*
+ * Event.h
+ *
+ * Copyright (C) ST-Ericsson SA 2011
+ * Authors: Srimanta Panda <srimanta.panda@stericsson.com>,
+ *          Ola Borgelin <ola.borgelin@stericsson.com>,
+ *          Karin Hedlund <karin.hedlund@stericsson.com>,
+ *          Markus Andersson <markus.m.andersson@stericsson.com> for ST-Ericsson.
+ * License terms: 3-clause BSD license
+ *
+ */
+
+/*
+ * @addtogroup OS Wrappers
+ * @{
+ */
+
+#pragma once
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <semaphore.h>
+#endif
+
+/**
+ * @brief Simple wrapper for OS synchronization primitive.
+ *
+ * This class wraps Win32 and POSIX semaphore.
+ */
+class Event
+{
+public:
+    /**
+     * @brief Constructor creating new event.
+     */
+    Event();
+
+    /**
+     * @brief Destructor that destroys the event.
+     */
+    virtual ~Event();
+
+    /**
+     * @brief Wait on the event for specified time.
+     *
+     * By default it waits for infinite time and blocks the thread until
+     * the event is signaled.
+     */
+    void wait(unsigned long timeout = -1);
+
+    /**
+     * @brief Signal the event.
+     *
+     * When event is signaled the waiting thread is released.
+     */
+    void signal();
+private:
+#ifdef _WIN32
+    HANDLE semaphore_;
+#else
+    sem_t semaphore_;
+#endif
+};
+
+/* @} */