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/**
* Copyright © 2017 IBM Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <algorithm>
#include <cassert>
#include <iostream>
#include <iterator>
#include <memory>
#include "argument.hpp"
#include "evdevpp/evdev.hpp"
#include "sdevent/event.hpp"
#include "sdevent/io.hpp"
#include "utility.hpp"
namespace phosphor
{
namespace fan
{
namespace util
{
ArgumentParser::ArgumentParser(int argc, char** argv)
{
auto option = 0;
while (-1 != (option = getopt_long(argc, argv, optionstr, options, NULL)))
{
if ((option == '?') || (option == 'h'))
{
usage(argv);
exit(1);
}
auto i = &options[0];
while ((i->val != option) && (i->val != 0))
{
++i;
}
if (i->val)
{
arguments[i->name] = (i->has_arg ? optarg : true_string);
}
}
}
const std::string& ArgumentParser::operator[](const std::string& opt)
{
auto i = arguments.find(opt);
if (i == arguments.end())
{
return empty_string;
}
else
{
return i->second;
}
}
void ArgumentParser::usage(char** argv)
{
std::cerr << "Usage: " << argv[0] << " [options]\n";
std::cerr << "Options:\n";
std::cerr << " --path evdev devpath\n";
std::cerr << " --type evdev type\n";
std::cerr << " --code evdev code\n";
std::cerr << std::flush;
}
const option ArgumentParser::options[] =
{
{ "path", required_argument, NULL, 'p' },
{ "type", required_argument, NULL, 't' },
{ "code", required_argument, NULL, 'c' },
{ 0, 0, 0, 0},
};
const char* ArgumentParser::optionstr = "p:t:c:";
const std::string ArgumentParser::true_string = "true";
const std::string ArgumentParser::empty_string = "";
static void exit_with_error(const char* err, char** argv)
{
ArgumentParser::usage(argv);
std::cerr << "\n";
std::cerr << "ERROR: " << err << "\n";
exit(1);
}
} // namespace util
} // namespace fan
} // namespace phosphor
int main(int argc, char* argv[])
{
using namespace phosphor::fan::util;
auto options = std::make_unique<ArgumentParser>(argc, argv);
auto path = (*options)["path"];
auto stype = (*options)["type"];
auto scode = (*options)["code"];
unsigned int type = EV_KEY;
if (path == ArgumentParser::empty_string)
{
exit_with_error("Path not specified or invalid.", argv);
}
if (stype != ArgumentParser::empty_string)
{
type = stoul(stype);
}
if (scode == ArgumentParser::empty_string)
{
exit_with_error("Keycode not specified or invalid.", argv);
}
options.reset();
auto loop = sdevent::event::newDefault();
phosphor::fan::util::FileDescriptor fd(
open(path.c_str(), O_RDONLY | O_NONBLOCK));
auto evdev = evdevpp::evdev::newFromFD(fd());
sdevent::event::io::IO callback(
loop,
fd(),
[&evdev](auto& s)
{
unsigned int type, code, value;
std::tie(type, code, value) = evdev.next();
std::cout <<
"type: " << libevdev_event_type_get_name(type) <<
" code: " << libevdev_event_code_get_name(type, code) <<
" value: " << value << "\n";
});
auto value = evdev.fetch(type, stoul(scode));
std::cout <<
"type: " << libevdev_event_type_get_name(type) <<
" code: " << libevdev_event_code_get_name(type, stoul(scode)) <<
" value: " << value << "\n";
loop.loop();
return 0;
}
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