1 files changed, 66 insertions, 0 deletions
diff --git a/blocks/src/lib/tsbk.h b/blocks/src/lib/tsbk.h
new file mode 100644
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+++ b/blocks/src/lib/tsbk.h
@@ -0,0 +1,66 @@
+/* -*- C++ -*- */
+
+/*
+ * Copyright 2008 Steve Glass
+ * 
+ * This file is part of OP25.
+ * 
+ * OP25 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.
+ * 
+ * OP25 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 OP25; see the file COPYING.  If not, write to the Free
+ * Software Foundation, Inc., 51 Franklin Street, Boston, MA
+ * 02110-1301, USA.
+*/
+
+#ifndef INCLUDED_TSBK_H
+#define INCLUDED_TSBK_H
+
+#include <abstract_data_unit.h>
+
+/**
+ * P25 trunking signalling block (TSBK).
+ */
+class tsbk : public abstract_data_unit
+{
+
+public:
+
+   /**
+    * tsbk constructor.
+    *
+    * \param frame_body A const_bit_queue representing the frame body.
+    */
+   tsbk(const_bit_queue& frame_body);
+
+   /**
+    * tsbk virtual destructor.
+    */
+   virtual ~tsbk();
+
+   /**
+    * Returns a string describing the Data Unit ID (DUID).
+    */
+   std::string duid_str() const;
+
+protected:
+
+   /**
+    * Returns the expected size (in bits) of this data unit in
+    * bits.
+    *
+    * \return The expected size (in bits) of this data_unit when encoded.
+    */
+   virtual uint16_t frame_size_max() const;
+
+};
+
+#endif /* INCLUDED_TSBK_H */