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/*
* Copyright 2011-2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include "block_gateway_impl.h"
#include <gnuradio/io_signature.h>
#include <boost/bind.hpp>
#include <iostream>
namespace gr {
/***********************************************************************
* Helper routines
**********************************************************************/
template <typename OutType, typename InType>
void copy_pointers(OutType& out, const InType& in)
{
out.resize(in.size());
for (size_t i = 0; i < in.size(); i++) {
out[i] = (void*)(in[i]);
}
}
block_gateway::sptr block_gateway::make(feval_ll* handler,
const std::string& name,
gr::io_signature::sptr in_sig,
gr::io_signature::sptr out_sig,
const block_gw_work_type work_type,
const unsigned factor)
{
return block_gateway::sptr(
new block_gateway_impl(handler, name, in_sig, out_sig, work_type, factor));
}
block_gateway_impl::block_gateway_impl(feval_ll* handler,
const std::string& name,
gr::io_signature::sptr in_sig,
gr::io_signature::sptr out_sig,
const block_gw_work_type work_type,
const unsigned factor)
: block(name, in_sig, out_sig), _handler(handler), _work_type(work_type)
{
switch (_work_type) {
case GR_BLOCK_GW_WORK_GENERAL:
_decim = 1; // not relevant, but set anyway
_interp = 1; // not relevant, but set anyway
break;
case GR_BLOCK_GW_WORK_SYNC:
_decim = 1;
_interp = 1;
this->set_fixed_rate(true);
break;
case GR_BLOCK_GW_WORK_DECIM:
_decim = factor;
_interp = 1;
break;
case GR_BLOCK_GW_WORK_INTERP:
_decim = 1;
_interp = factor;
this->set_output_multiple(_interp);
break;
}
}
void block_gateway_impl::forecast(int noutput_items, gr_vector_int& ninput_items_required)
{
switch (_work_type) {
case GR_BLOCK_GW_WORK_GENERAL:
_message.action = block_gw_message_type::ACTION_FORECAST;
_message.forecast_args_noutput_items = noutput_items;
_message.forecast_args_ninput_items_required = ninput_items_required;
_handler->calleval(0);
ninput_items_required = _message.forecast_args_ninput_items_required;
return;
default:
unsigned ninputs = ninput_items_required.size();
for (unsigned i = 0; i < ninputs; i++)
ninput_items_required[i] = fixed_rate_noutput_to_ninput(noutput_items);
return;
}
}
int block_gateway_impl::general_work(int noutput_items,
gr_vector_int& ninput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
switch (_work_type) {
case GR_BLOCK_GW_WORK_GENERAL:
_message.action = block_gw_message_type::ACTION_GENERAL_WORK;
_message.general_work_args_noutput_items = noutput_items;
_message.general_work_args_ninput_items = ninput_items;
copy_pointers(_message.general_work_args_input_items, input_items);
_message.general_work_args_output_items = output_items;
_handler->calleval(0);
return _message.general_work_args_return_value;
default:
int r = work(noutput_items, input_items, output_items);
if (r > 0)
consume_each(r * _decim / _interp);
return r;
}
}
int block_gateway_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
_message.action = block_gw_message_type::ACTION_WORK;
_message.work_args_ninput_items = fixed_rate_noutput_to_ninput(noutput_items);
if (_message.work_args_ninput_items == 0)
return -1;
_message.work_args_noutput_items = noutput_items;
copy_pointers(_message.work_args_input_items, input_items);
_message.work_args_output_items = output_items;
_handler->calleval(0);
return _message.work_args_return_value;
}
int block_gateway_impl::fixed_rate_noutput_to_ninput(int noutput_items)
{
return (noutput_items * _decim / _interp) + history() - 1;
}
int block_gateway_impl::fixed_rate_ninput_to_noutput(int ninput_items)
{
return std::max(0, ninput_items - (int)history() + 1) * _interp / _decim;
}
bool block_gateway_impl::start(void)
{
_message.action = block_gw_message_type::ACTION_START;
_handler->calleval(0);
return _message.start_args_return_value;
}
bool block_gateway_impl::stop(void)
{
_message.action = block_gw_message_type::ACTION_STOP;
_handler->calleval(0);
return _message.stop_args_return_value;
}
block_gw_message_type& block_gateway_impl::block_message(void) { return _message; }
} /* namespace gr */
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