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/*-
* Copyright 2022 Vsevolod Stakhov
*
* 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.
*/
#ifndef RSPAMD_LOCKED_FILE_HXX
#define RSPAMD_LOCKED_FILE_HXX
#pragma once
#include "contrib/expected/expected.hpp"
#include <string>
/**
* A simple RAII object to contain a file descriptor with an flock wrap
* A file is unlocked and closed when not needed
*/
struct raii_locked_file final {
~raii_locked_file();
static auto open(const char *fname, int flags) -> tl::expected<raii_locked_file, std::string>;
private:
int fd;
explicit raii_locked_file(int _fd) : fd(_fd) {}
};
#endif //RSPAMD_LOCKED_FILE_HXX
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