1 files changed, 65 insertions, 0 deletions
diff --git a/gnuradio-runtime/include/gnuradio/rpcbufferedget.h b/gnuradio-runtime/include/gnuradio/rpcbufferedget.h
new file mode 100644
index 0000000000..ebd740b1f8
--- /dev/null
+++ b/gnuradio-runtime/include/gnuradio/rpcbufferedget.h
@@ -0,0 +1,65 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2015 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef RPCBUFFEREDGET_H
+#define RPCBUFFEREDGET_H
+
+#include <boost/thread/condition_variable.hpp>
+#include <boost/thread/mutex.hpp>
+#include <stdio.h>
+
+template<typename TdataType>
+class rpcbufferedget {
+public:
+  rpcbufferedget(const unsigned int init_buffer_size = 4096) :
+    d_data_needed(false), d_data_ready(), d_buffer_lock(), d_buffer(init_buffer_size) {;}
+
+  ~rpcbufferedget() {
+    d_data_ready.notify_all();
+  }
+
+  void offer_data(const TdataType& data) {
+    if (!d_data_needed)
+      return;
+    {
+      boost::mutex::scoped_lock lock(d_buffer_lock);
+      d_buffer = data;
+      d_data_needed = false;
+    }
+    d_data_ready.notify_one();
+  }
+
+  TdataType get() {
+    d_data_needed = true;
+    boost::mutex::scoped_lock lock(d_buffer_lock);
+    d_data_ready.wait(lock);
+    return d_buffer;
+  }
+
+private:
+  bool d_data_needed;
+  boost::condition_variable d_data_ready;
+  boost::mutex d_buffer_lock;
+  TdataType d_buffer;
+};
+
+#endif