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/*
* This file is open source software, licensed to you under the terms
* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. 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.
*/
/*
* Copyright (C) 2021 ScyllaDB
*/
#include <seastar/core/app-template.hh>
#include <seastar/core/thread.hh>
#include <seastar/core/reactor.hh>
#include <seastar/util/closeable.hh>
#include <yaml-cpp/yaml.h>
using namespace seastar;
int main(int ac, char** av) {
namespace bpo = boost::program_options;
app_template app;
auto opt_add = app.add_options();
opt_add
("directory", bpo::value<sstring>()->default_value("."), "directory to work on")
;
return app.run(ac, av, [&] {
return seastar::async([&] {
auto& opts = app.configuration();
auto& storage = opts["directory"].as<sstring>();
YAML::Emitter out;
out << YAML::BeginDoc;
out << YAML::BeginMap;
engine().open_file_dma(storage + "/tempfile", open_flags::rw | open_flags::create | open_flags::exclusive).then([&] (file f) {
return with_closeable(std::move(f), [&out, &storage] (file& f) {
return remove_file(storage + "/tempfile").then([&out, &f] {
out << YAML::Key << "disk_read_max_length" << YAML::Value << f.disk_read_max_length();
out << YAML::Key << "disk_write_max_length" << YAML::Value << f.disk_write_max_length();
});
});
}).get();
out << YAML::EndMap;
out << YAML::EndDoc;
std::cout << out.c_str();
});
});
}
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