Prepare cscore for merge into allwpilib.

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

@@ -0,0 +1,62 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2016-2018 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_MJPEGSERVERIMPL_H_
+#define CSCORE_MJPEGSERVERIMPL_H_
+
+#include <atomic>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include <llvm/SmallVector.h>
+#include <llvm/StringRef.h>
+#include <llvm/raw_ostream.h>
+#include <support/SafeThread.h>
+#include <support/raw_istream.h>
+#include <support/raw_socket_ostream.h>
+#include <tcpsockets/NetworkAcceptor.h>
+#include <tcpsockets/NetworkStream.h>
+
+#include "SinkImpl.h"
+
+namespace cs {
+
+class SourceImpl;
+
+class MjpegServerImpl : public SinkImpl {
+ public:
+  MjpegServerImpl(llvm::StringRef name, llvm::StringRef listenAddress, int port,
+                  std::unique_ptr<wpi::NetworkAcceptor> acceptor);
+  ~MjpegServerImpl() override;
+
+  void Stop();
+  std::string GetListenAddress() { return m_listenAddress; }
+  int GetPort() { return m_port; }
+
+ private:
+  void SetSourceImpl(std::shared_ptr<SourceImpl> source) override;
+
+  void ServerThreadMain();
+
+  class ConnThread;
+
+  // Never changed, so not protected by mutex
+  std::string m_listenAddress;
+  int m_port;
+
+  std::unique_ptr<wpi::NetworkAcceptor> m_acceptor;
+  std::atomic_bool m_active;  // set to false to terminate threads
+  std::thread m_serverThread;
+
+  std::vector<wpi::SafeThreadOwner<ConnThread>> m_connThreads;
+};
+
+}  // namespace cs
+
+#endif  // CSCORE_MJPEGSERVERIMPL_H_