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ton/tdutils/td/utils/port/StdStreams.h

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2019-09-07 12:03:22 +02:00
/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2019 Telegram Systems LLP
*/
#pragma once
#include "td/utils/buffer.h"
#include "td/utils/common.h"
#include "td/utils/port/detail/PollableFd.h"
#include "td/utils/port/FileFd.h"
#include "td/utils/Status.h"
#include <limits>
#include <memory>
namespace td {
FileFd &Stdin();
FileFd &Stdout();
FileFd &Stderr();
namespace detail {
class BufferedStdinImpl;
class BufferedStdinImplDeleter {
public:
void operator()(BufferedStdinImpl *impl);
};
} // namespace detail
class BufferedStdin {
public:
BufferedStdin();
BufferedStdin(const BufferedStdin &) = delete;
BufferedStdin &operator=(const BufferedStdin &) = delete;
BufferedStdin(BufferedStdin &&);
BufferedStdin &operator=(BufferedStdin &&);
~BufferedStdin();
ChainBufferReader &input_buffer();
PollableFdInfo &get_poll_info();
const PollableFdInfo &get_poll_info() const;
Result<size_t> flush_read(size_t max_read = std::numeric_limits<size_t>::max()) TD_WARN_UNUSED_RESULT;
private:
std::unique_ptr<detail::BufferedStdinImpl, detail::BufferedStdinImplDeleter> impl_;
};
} // namespace td