mirror of
https://github.com/scylladb/scylladb.git
synced 2026-04-22 17:40:34 +00:00
796c203d68
When future-util.hh is included in files included in reactor.hh (e.g. file.hh). Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com>
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
|
|
* 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) 2014 Cloudius Systems, Ltd.
|
|
*/
|
|
|
|
#include <algorithm>
|
|
#include "core/app-template.hh"
|
|
#include "core/future-util.hh"
|
|
#include "core/file.hh"
|
|
#include "core/reactor.hh"
|
|
|
|
namespace bpo = boost::program_options;
|
|
|
|
struct file_test {
|
|
file_test(file&& f) : f(std::move(f)) {}
|
|
file f;
|
|
semaphore sem = { 0 };
|
|
};
|
|
|
|
int main(int ac, char** av) {
|
|
app_template app;
|
|
app.add_options()
|
|
("dev", bpo::value<std::string>(), "e.g. --dev /dev/sdb")
|
|
;
|
|
|
|
return app.run(ac, av, [&app] {
|
|
static constexpr auto max = 10000;
|
|
auto&& config = app.configuration();
|
|
auto filepath = config["dev"].as<std::string>();
|
|
|
|
engine().open_file_dma(filepath, open_flags::rw | open_flags::create).then([] (file f) {
|
|
auto ft = new file_test{std::move(f)};
|
|
|
|
ft->f.stat().then([ft] (struct stat st) mutable {
|
|
assert(S_ISBLK(st.st_mode));
|
|
auto offset = 0;
|
|
auto length = max * 4096;
|
|
ft->f.discard(offset, length).then([ft] () mutable {
|
|
ft->sem.signal();
|
|
});
|
|
});
|
|
|
|
ft->sem.wait().then([ft] () mutable {
|
|
return ft->f.flush();
|
|
}).then([ft] () mutable {
|
|
std::cout << "done\n";
|
|
delete ft;
|
|
engine().exit(0);
|
|
});
|
|
});
|
|
});
|
|
}
|