Files
scylladb/core/app-template.cc
2014-12-01 18:01:12 +02:00

72 lines
1.9 KiB
C++

/*
* Copyright (C) 2014 Cloudius Systems, Ltd.
*/
#include "app-template.hh"
#include "core/reactor.hh"
#include "core/scollectd.hh"
#include "core/print.hh"
#include <boost/program_options.hpp>
#include <fstream>
#include <cstdlib>
namespace bpo = boost::program_options;
app_template::app_template()
: _opts("App options") {
_opts.add_options()
("help", "show help message")
;
_opts.add(reactor::get_options_description());
_opts.add(smp::get_options_description());
_opts.add(scollectd::get_options_description());
}
boost::program_options::options_description_easy_init
app_template::add_options() {
return _opts.add_options();
}
bpo::variables_map&
app_template::configuration() {
return *_configuration;
}
int
app_template::run(int ac, char ** av, std::function<void ()>&& func) {
#ifdef DEBUG
print("WARNING: debug mode. Not for benchmarking or production\n");
#endif
bpo::variables_map configuration;
bpo::store(bpo::command_line_parser(ac, av).options(_opts).run(), configuration);
auto home = std::getenv("HOME");
if (home) {
std::ifstream ifs(std::string(home) + "/.config/seastar/seastar.conf");
if (ifs) {
bpo::store(bpo::parse_config_file(ifs, _opts), configuration);
}
}
bpo::notify(configuration);
if (configuration.count("help")) {
std::cout << _opts << "\n";
return 1;
}
smp::configure(configuration);
_configuration = {std::move(configuration)};
engine.when_started().then([this] {
scollectd::configure( this->configuration());
}).then(
std::move(func)
).rescue([] (auto get_ex) {
try {
get_ex();
} catch (std::exception& ex) {
std::cout << "program failed with uncaught exception: " << ex.what() << "\n";
engine.exit(1);
}
});
return engine.run();
}