1 files changed, 67 insertions, 0 deletions
diff --git a/gnuradio-core/src/lib/runtime/gr_dispatcher.h b/gnuradio-core/src/lib/runtime/gr_dispatcher.h
new file mode 100644
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+++ b/gnuradio-core/src/lib/runtime/gr_dispatcher.h
@@ -0,0 +1,67 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005 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 2, 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef INCLUDED_GR_DISPATCHER_H
+#define INCLUDED_GR_DISPATCHER_H
+
+#include <gr_select_handler.h>
+#include <vector>
+
+class gr_dispatcher;
+typedef boost::shared_ptr<gr_dispatcher> gr_dispatcher_sptr;
+
+gr_dispatcher_sptr gr_dispatcher_singleton();
+gr_dispatcher_sptr gr_make_dispatcher();
+
+/*!
+ * \brief invoke callbacks based on select.
+ *
+ * \sa gr_select_handler
+ */
+class gr_dispatcher
+{
+  gr_dispatcher();
+  friend gr_dispatcher_sptr gr_make_dispatcher();
+
+  std::vector<gr_select_handler_sptr> d_handler;
+  int			      	      d_max_index;
+
+public:
+  ~gr_dispatcher();
+
+  bool add_handler(gr_select_handler_sptr handler);
+  bool del_handler(gr_select_handler_sptr handler);
+  bool del_handler(gr_select_handler *handler);
+
+  /*!
+   * \brief Event dispatching loop.
+   *
+   * Enter a polling loop that only terminates after all gr_select_handlers
+   * have been removed.  \p timeout sets the timeout parameter to the select()
+   * call, measured in seconds.
+   *
+   * \param timeout maximum number of seconds to block in select.
+   */
+  void loop(double timeout=10);
+};
+
+#endif /* INCLUDED_GR_DISPATCHER_H */