Prepare cscore for merge into allwpilib.

cscore/src/main/native/cpp/Notifier.h

@@ -0,0 +1,72 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2015-2018 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#ifndef CSCORE_NOTIFIER_H_
+#define CSCORE_NOTIFIER_H_
+
+#include <functional>
+
+#include <support/SafeThread.h>
+
+#include "cscore_cpp.h"
+
+namespace cs {
+
+class SinkImpl;
+class SourceImpl;
+
+class Notifier {
+  friend class NotifierTest;
+
+ public:
+  static Notifier& GetInstance() {
+    static Notifier instance;
+    return instance;
+  }
+  ~Notifier();
+
+  void Start();
+  void Stop();
+
+  static bool destroyed() { return s_destroyed; }
+
+  void SetOnStart(std::function<void()> on_start) { m_on_start = on_start; }
+  void SetOnExit(std::function<void()> on_exit) { m_on_exit = on_exit; }
+
+  int AddListener(std::function<void(const RawEvent& event)> callback,
+                  int eventMask);
+  void RemoveListener(int uid);
+
+  // Notification events
+  void NotifySource(llvm::StringRef name, CS_Source source, CS_EventKind kind);
+  void NotifySource(const SourceImpl& source, CS_EventKind kind);
+  void NotifySourceVideoMode(const SourceImpl& source, const VideoMode& mode);
+  void NotifySourceProperty(const SourceImpl& source, CS_EventKind kind,
+                            llvm::StringRef propertyName, int property,
+                            CS_PropertyKind propertyKind, int value,
+                            llvm::StringRef valueStr);
+  void NotifySink(llvm::StringRef name, CS_Sink sink, CS_EventKind kind);
+  void NotifySink(const SinkImpl& sink, CS_EventKind kind);
+  void NotifySinkSourceChanged(llvm::StringRef name, CS_Sink sink,
+                               CS_Source source);
+  void NotifyNetworkInterfacesChanged();
+  void NotifyTelemetryUpdated();
+
+ private:
+  Notifier();
+
+  class Thread;
+  wpi::SafeThreadOwner<Thread> m_owner;
+
+  std::function<void()> m_on_start;
+  std::function<void()> m_on_exit;
+  static bool s_destroyed;
+};
+
+}  // namespace cs
+
+#endif  // CSCORE_NOTIFIER_H_