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//
// Copyright 2010 Ettus Research LLC
//
// This program 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 3 of the License, or
// (at your option) any later version.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
//
#include <boost/test/unit_test.hpp>
#include <uhd/gain_handler.hpp>
#include <uhd/props.hpp>
#include <uhd/dict.hpp>
#include <boost/bind.hpp>
#include <iostream>
using namespace uhd;
enum prop_t{
PROP_GAIN,
PROP_GAIN_MIN,
PROP_GAIN_MAX,
PROP_GAIN_STEP,
PROP_GAIN_NAMES
};
class gainful_obj : public wax::obj{
public:
gainful_obj(void){
//initialize gain props struct
gain_handler::gain_props_t gain_props;
gain_props.gain_val_prop = PROP_GAIN;
gain_props.gain_min_prop = PROP_GAIN_MIN;
gain_props.gain_max_prop = PROP_GAIN_MAX;
gain_props.gain_step_prop = PROP_GAIN_STEP;
gain_props.gain_names_prop = PROP_GAIN_NAMES;
//make a new gain handler
_gain_handler = gain_handler::make(
this->get_link(), gain_props, boost::bind(&gain_handler::is_equal<prop_t>, _1, _2)
);
_gains["g0"] = 0;
_gains["g1"] = 0;
_gains_min["g0"] = -10;
_gains_min["g1"] = 0;
_gains_max["g0"] = 0;
_gains_max["g1"] = 100;
_gains_step["g0"] = .1;
_gains_step["g1"] = 1.5;
}
~gainful_obj(void){}
private:
void get(const wax::obj &key_, wax::obj &val){
if (_gain_handler->intercept_get(key_, val)) return;
wax::obj key; std::string name;
boost::tie(key, name) = extract_named_prop(key_);
//handle the get request conditioned on the key
switch(wax::cast<prop_t>(key)){
case PROP_GAIN:
val = _gains[name];
return;
case PROP_GAIN_MIN:
val = _gains_min[name];
return;
case PROP_GAIN_MAX:
val = _gains_max[name];
return;
case PROP_GAIN_STEP:
val = _gains_step[name];
return;
case PROP_GAIN_NAMES:
val = prop_names_t(_gains.get_keys());
return;
}
}
void set(const wax::obj &key_, const wax::obj &val){
if (_gain_handler->intercept_set(key_, val)) return;
wax::obj key; std::string name;
boost::tie(key, name) = extract_named_prop(key_);
//handle the get request conditioned on the key
switch(wax::cast<prop_t>(key)){
case PROP_GAIN:
_gains[name] = wax::cast<gain_t>(val);
return;
case PROP_GAIN_MIN:
case PROP_GAIN_MAX:
case PROP_GAIN_STEP:
case PROP_GAIN_NAMES:
throw std::runtime_error("cannot set this property");
}
}
gain_handler::sptr _gain_handler;
uhd::dict<std::string, gain_t> _gains;
uhd::dict<std::string, gain_t> _gains_min;
uhd::dict<std::string, gain_t> _gains_max;
uhd::dict<std::string, gain_t> _gains_step;
};
BOOST_AUTO_TEST_CASE(test_gain_handler){
std::cout << "Testing the gain handler..." << std::endl;
gainful_obj go0;
BOOST_CHECK_THROW(
wax::cast<gain_t>(go0[named_prop_t(PROP_GAIN, "fail")]),
std::exception
);
std::cout << "verifying the overall min, max, step" << std::endl;
BOOST_CHECK_EQUAL(wax::cast<gain_t>(go0[PROP_GAIN_MIN]), gain_t(-10));
BOOST_CHECK_EQUAL(wax::cast<gain_t>(go0[PROP_GAIN_MAX]), gain_t(100));
BOOST_CHECK_EQUAL(wax::cast<gain_t>(go0[PROP_GAIN_STEP]), gain_t(1.5));
std::cout << "verifying the overall gain" << std::endl;
go0[named_prop_t(PROP_GAIN, "g0")] = gain_t(-5);
go0[named_prop_t(PROP_GAIN, "g1")] = gain_t(30);
BOOST_CHECK_EQUAL(wax::cast<gain_t>(go0[PROP_GAIN]), gain_t(25));
}
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