Merge branch 'dfsg-orig'

[debian/gnuradio] / gnuradio-core / src / lib / general / gr_head.h

diff --git a/gnuradio-core/src/lib/general/gr_head.h b/gnuradio-core/src/lib/general/gr_head.h
index cd97d63994c0333b958ce6515248449d45376936..f7eee10648e3f354455844272f8785ae9af6e571 100644 (file)
--- a/gnuradio-core/src/lib/general/gr_head.h
+++ b/gnuradio-core/src/lib/general/gr_head.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2004 Free Software Foundation, Inc.
+ * Copyright 2004,2009 Free Software Foundation, Inc.
  * 
  * This file is part of GNU Radio
  * 
@@ -26,6 +26,9 @@
 #include <gr_sync_block.h>
 #include <stddef.h>                    // size_t
 
+class gr_head;
+typedef boost::shared_ptr<gr_head> gr_head_sptr;
+
 /*!
  * \brief copies the first N items to the output then signals done
  * \ingroup slicedice_blk
@@ -35,20 +38,22 @@
 
 class gr_head : public gr_sync_block
 {
-  friend gr_block_sptr gr_make_head (size_t sizeof_stream_item, int nitems);
-  gr_head (size_t sizeof_stream_item, int nitems);
+  friend gr_head_sptr gr_make_head (size_t sizeof_stream_item, unsigned long long nitems);
+  gr_head (size_t sizeof_stream_item, unsigned long long nitems);
 
-  int  d_nitems;
-  int  d_ncopied_items;
+  unsigned long long   d_nitems;
+  unsigned long long   d_ncopied_items;
 
  public:
   int work (int noutput_items,
                 gr_vector_const_void_star &input_items,
                 gr_vector_void_star &output_items);
+
+  void reset() { d_ncopied_items = 0; }
 };
 
-gr_block_sptr
-gr_make_head (size_t sizeof_stream_item, int nitems);
+gr_head_sptr
+gr_make_head (size_t sizeof_stream_item, unsigned long long nitems);
 
 
 #endif /* INCLUDED_GR_HEAD_H */