1 files changed, 79 insertions, 0 deletions
diff --git a/gnuradio-core/src/lib/io/gr_pdu.cc b/gnuradio-core/src/lib/io/gr_pdu.cc
new file mode 100644
index 000000000..302fd7b9b
--- /dev/null
+++ b/gnuradio-core/src/lib/io/gr_pdu.cc
@@ -0,0 +1,79 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2012 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gr_pdu.h>
+
+size_t 
+gr_pdu_itemsize(gr_pdu_vector_type type){
+  switch(type){
+  case pdu_byte:
+    return 1;
+  case pdu_float:
+    return sizeof(float);
+  case pdu_complex:
+    return sizeof(gr_complex);
+  default:
+    throw std::runtime_error("bad type!");
+  }
+}
+
+bool
+gr_pdu_type_matches(gr_pdu_vector_type type, pmt::pmt_t v){
+  switch(type){
+  case pdu_byte:
+    return pmt::pmt_is_u8vector(v);
+  case pdu_float:
+    return pmt::pmt_is_f32vector(v);
+  case pdu_complex:
+    return pmt::pmt_is_c32vector(v);
+  default:
+    throw std::runtime_error("bad type!");
+  }
+}
+
+pmt::pmt_t
+gr_pdu_make_vector(gr_pdu_vector_type type, const uint8_t* buf, size_t items){
+  switch(type){
+  case pdu_byte:
+    return pmt::pmt_init_u8vector(items, buf);
+  case pdu_float:
+    return pmt::pmt_init_f32vector(items, (const float*)buf);
+  case pdu_complex:
+    return pmt::pmt_init_c32vector(items, (const gr_complex*)buf);
+  default:
+    throw std::runtime_error("bad type!");
+  }
+}
+
+gr_pdu_vector_type type_from_pmt(pmt::pmt_t vector){
+  if(pmt_is_u8vector(vector))
+    return pdu_byte;
+  if(pmt_is_f32vector(vector))
+    return pdu_float;
+  if(pmt_is_c32vector(vector))
+    return pdu_complex;
+  throw std::runtime_error("bad type!");
+}