65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
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// Copyright (c) 2014-2018, The Monero Project
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#pragma once
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#include <system_error>
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#include <type_traits>
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//! Executes a LMDB command, and returns errors via `lmdb::error` enum.
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#define MONERO_LMDB_CHECK(...) \
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do \
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{ \
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const int err = __VA_ARGS__ ; \
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if (err) \
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return {lmdb::error(err)}; \
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} while (0)
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namespace lmdb
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{
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//! Tracks LMDB error codes.
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enum class error : int
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{
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// 0 is reserved for no error, as per expect<T>
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// All other errors are the values reported by LMDB
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};
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std::error_category const& error_category() noexcept;
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inline std::error_code make_error_code(error value) noexcept
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{
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return std::error_code{int(value), error_category()};
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}
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}
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namespace std
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{
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template<>
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struct is_error_code_enum<::lmdb::error>
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: true_type
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{};
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}
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