add base class for socket handler using netsource object

lib/include/srslte/common/netsource_handler.h

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2013-2019 Software Radio Systems Limited
+ *
+ * This file is part of srsLTE.
+ *
+ * srsLTE is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsLTE is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
+ *
+ */
+
+/*! \brief Base class for implementing socket handlers using
+ * the netsource object.
+ *
+ */
+
+#ifndef SRSLTE_NETSOURE_HANDLER_H
+#define SRSLTE_NETSOURE_HANDLER_H
+
+#include "srslte/common/log.h"
+#include "srslte/common/threads.h"
+#include "srslte/phy/io/netsource.h"
+#include <array>
+#include <iostream>
+#include <memory>
+
+class netsource_handler : public thread
+{
+public:
+  netsource_handler(const std::string name_) : thread(name_) { rx_buf = unique_byte_array_t(new byte_array_t); }
+
+  ~netsource_handler(){};
+
+  void stop()
+  {
+    run_enable = false;
+    int cnt    = 0;
+    while (running && cnt < 100) {
+      usleep(10000);
+      cnt++;
+    }
+    if (running) {
+      thread_cancel();
+    }
+    wait_thread_finish();
+  }
+
+  virtual void run_thread() = 0;
+
+  bool run_enable  = true;
+  bool running     = false;
+  bool initialized = false;
+
+  std::string net_ip   = "0.0.0.0";
+  uint32_t    net_port = 0;
+
+  const static uint32_t                    RX_BUF_SIZE = 1024 * 1024;
+  typedef std::array<uint8_t, RX_BUF_SIZE> byte_array_t;
+  typedef std::unique_ptr<byte_array_t>    unique_byte_array_t;
+  unique_byte_array_t                      rx_buf;
+
+  srslte_netsource_t net_source;
+
+  srslte::log* log = nullptr;
+};
+
+#endif // SRSLTE_NETSOURE_HANDLER_H