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/* -*- c++ -*- */
/*
* Copyright 2004 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 2, 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gr_block.h>
#include <gr_block_detail.h>
#include <stdexcept>
static long s_next_id = 0;
static long s_ncurrently_allocated = 0;
long
gr_block_ncurrently_allocated ()
{
return s_ncurrently_allocated;
}
gr_block::gr_block (const std::string &name,
gr_io_signature_sptr input_signature,
gr_io_signature_sptr output_signature)
: d_name (name),
d_input_signature (input_signature),
d_output_signature (output_signature),
d_output_multiple (1),
d_relative_rate (1.0),
d_unique_id (s_next_id++),
d_history(1),
d_fixed_rate(false)
{
s_ncurrently_allocated++;
}
gr_block::~gr_block ()
{
s_ncurrently_allocated--;
}
// stub implementation: 1:1
void
gr_block::forecast (int noutput_items, gr_vector_int &ninput_items_required)
{
unsigned ninputs = ninput_items_required.size ();
for (unsigned i = 0; i < ninputs; i++)
ninput_items_required[i] = noutput_items;
}
// default implementation
bool
gr_block::check_topology (int ninputs, int noutputs)
{
return true;
}
bool
gr_block::start()
{
return true;
}
bool
gr_block::stop()
{
return true;
}
void
gr_block::set_output_multiple (int multiple)
{
if (multiple < 1)
throw std::invalid_argument ("gr_block::set_output_multiple");
d_output_multiple = multiple;
}
void
gr_block::set_relative_rate (double relative_rate)
{
if (relative_rate < 0.0)
throw std::invalid_argument ("gr_block::set_relative_rate");
d_relative_rate = relative_rate;
}
void
gr_block::consume (int which_input, int how_many_items)
{
d_detail->consume (which_input, how_many_items);
}
void
gr_block::consume_each (int how_many_items)
{
d_detail->consume_each (how_many_items);
}
int
gr_block::fixed_rate_ninput_to_noutput(int ninput)
{
throw std::runtime_error("Unimplemented");
}
int
gr_block::fixed_rate_noutput_to_ninput(int noutput)
{
throw std::runtime_error("Unimplemented");
}
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