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59d07fab64
If clio shuts itself down due to exceeding graceful period when cache is saved and renamed but the buffers are not flushed, we may end up with a corrupted cache file. Clio will detect corruption and will not load corrupted cache file, but we could avoid it by explicitly flushing ofstream buffer.
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of clio: https://github.com/XRPLF/clio
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Copyright (c) 2025, the clio developers.
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Permission to use, copy, modify, and distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#pragma once
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#include "util/Shasum.hpp"
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#include <xrpl/basics/base_uint.h>
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#include <cstddef>
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#include <cstring>
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#include <expected>
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#include <fstream>
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#include <string>
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namespace data::impl {
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class OutputFile {
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std::ofstream file_;
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util::Sha256sum shasum_;
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public:
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OutputFile(std::string const& path);
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bool
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isOpen() const;
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template <typename T>
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void
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write(T&& data)
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{
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writeRaw(reinterpret_cast<char const*>(&data), sizeof(T));
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}
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template <typename T>
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void
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write(T const* data, size_t const size)
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{
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writeRaw(reinterpret_cast<char const*>(data), size);
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}
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void
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writeRaw(char const* data, size_t size);
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ripple::uint256
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hash() const;
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std::expected<void, std::string>
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close();
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private:
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void
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writeToFile(char const* data, size_t size);
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};
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} // namespace data::impl
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