1 /* -*- c++ -*- */
2 /*
3 * Copyright 2006,2009,2013 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 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26
27 #include "copy_impl.h"
28 #include <gnuradio/io_signature.h>
29 #include <string.h>
30
31 namespace gr {
32 namespace blocks {
33
make(size_t itemsize)34 copy::sptr copy::make(size_t itemsize)
35 {
36 return gnuradio::get_initial_sptr(new copy_impl(itemsize));
37 }
38
copy_impl(size_t itemsize)39 copy_impl::copy_impl(size_t itemsize)
40 : block("copy",
41 io_signature::make(1, -1, itemsize),
42 io_signature::make(1, -1, itemsize)),
43 d_itemsize(itemsize),
44 d_enabled(true)
45 {
46 message_port_register_in(pmt::mp("en"));
47 set_msg_handler(pmt::mp("en"), [this](pmt::pmt_t msg) { this->handle_enable(msg); });
48 }
49
~copy_impl()50 copy_impl::~copy_impl() {}
51
handle_enable(pmt::pmt_t msg)52 void copy_impl::handle_enable(pmt::pmt_t msg)
53 {
54 if (pmt::is_bool(msg)) {
55 bool en = pmt::to_bool(msg);
56 d_enabled = en;
57 }
58 }
59
forecast(int noutput_items,gr_vector_int & ninput_items_required)60 void copy_impl::forecast(int noutput_items, gr_vector_int& ninput_items_required)
61 {
62 unsigned ninputs = ninput_items_required.size();
63 for (unsigned i = 0; i < ninputs; i++)
64 ninput_items_required[i] = noutput_items;
65 }
66
check_topology(int ninputs,int noutputs)67 bool copy_impl::check_topology(int ninputs, int noutputs) { return ninputs == noutputs; }
68
general_work(int noutput_items,gr_vector_int & ninput_items,gr_vector_const_void_star & input_items,gr_vector_void_star & output_items)69 int copy_impl::general_work(int noutput_items,
70 gr_vector_int& ninput_items,
71 gr_vector_const_void_star& input_items,
72 gr_vector_void_star& output_items)
73 {
74 const uint8_t** in = (const uint8_t**)&input_items[0];
75 uint8_t** out = (uint8_t**)&output_items[0];
76
77 int n = 0;
78 if (d_enabled) {
79 int ninputs = input_items.size();
80 for (int i = 0; i < ninputs; i++) {
81 memcpy(out[i], in[i], noutput_items * d_itemsize);
82 }
83 n = noutput_items;
84 }
85
86 consume_each(noutput_items);
87 return n;
88 }
89
90
setup_rpc()91 void copy_impl::setup_rpc()
92 {
93 #ifdef GR_CTRLPORT
94 add_rpc_variable(rpcbasic_sptr(new rpcbasic_register_handler<copy>(
95 alias(), "en", "", "Enable", RPC_PRIVLVL_MIN, DISPNULL)));
96 #endif /* GR_CTRLPORT */
97 }
98
99 } /* namespace blocks */
100 } /* namespace gr */
101