1 /* -*- c++ -*- */
2 /*
3  * Copyright 2012,2014 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
7  * GNU Radio is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 3, or (at your option)
10  * any later version.
11  *
12  * GNU Radio is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with GNU Radio; see the file COPYING.  If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #ifndef INCLUDED_STREAM_MUX_IMPL_H
24 #define INCLUDED_STREAM_MUX_IMPL_H
25 
26 #include <gnuradio/blocks/stream_mux.h>
27 
28 namespace gr {
29 namespace blocks {
30 
31 class BLOCKS_API stream_mux_impl : public stream_mux
32 {
33 private:
34     size_t d_itemsize;
35     unsigned int d_stream;   // index of currently selected stream
36     int d_residual;          // number if items left to put into current stream
37     gr_vector_int d_lengths; // number if items to pack per stream
38 
39     void forecast(int noutput_items, gr_vector_int& ninput_items_required);
40 
41 public:
42     stream_mux_impl(size_t itemsize, const std::vector<int>& lengths);
43 
44     int general_work(int noutput_items,
45                      gr_vector_int& ninput_items,
46                      gr_vector_const_void_star& input_items,
47                      gr_vector_void_star& output_items);
48 };
49 
50 } /* namespace blocks */
51 } /* namespace gr */
52 
53 #endif /* INCLUDED_STREAM_MUX_IMPL_H */
54