1 files changed, 68 insertions, 0 deletions
diff --git a/xbmc/peripherals/EventPollHandle.h b/xbmc/peripherals/EventPollHandle.h
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+++ b/xbmc/peripherals/EventPollHandle.h
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+/*
+ *  Copyright (C) 2016-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+namespace PERIPHERALS
+{
+class CEventPollHandle;
+
+/*!
+ * \brief Callback implemented by event scanner
+ */
+class IEventPollCallback
+{
+public:
+  virtual ~IEventPollCallback(void) = default;
+
+  virtual void Activate(CEventPollHandle& handle) = 0;
+  virtual void Deactivate(CEventPollHandle& handle) = 0;
+  virtual void HandleEvents(bool bWait) = 0;
+  virtual void Release(CEventPollHandle& handle) = 0;
+};
+
+/*!
+ * \brief Handle returned by the event scanner to control scan timing
+ *
+ * When held, this allows one to control the timing of when events are
+ * handled.
+ */
+class CEventPollHandle
+{
+public:
+  /*!
+   * \brief Create an active polling handle
+   */
+  CEventPollHandle(IEventPollCallback& callback);
+
+  /*!
+   * \brief Handle is automatically released when this class is destructed
+   */
+  ~CEventPollHandle();
+
+  /*!
+   * \brief Activate handle
+   */
+  void Activate();
+
+  /*!
+   * \brief Deactivate handle
+   */
+  void Deactivate();
+
+  /*!
+   * \brief Trigger a scan for events
+   *
+   * \param bWait If true, this blocks until all events are handled
+   */
+  void HandleEvents(bool bWait);
+
+private:
+  IEventPollCallback& m_callback;
+};
+} // namespace PERIPHERALS