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scylladb/utils/exceptions.hh

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C++

/*
* Copyright 2016-present ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <seastar/core/sstring.hh>
#include <seastar/core/on_internal_error.hh>
#include <functional>
#include <system_error>
namespace seastar { class logger; }
typedef std::function<bool (const std::system_error &)> system_error_lambda_t;
bool check_exception(system_error_lambda_t f);
bool is_system_error_errno(int err_no);
bool is_timeout_exception(std::exception_ptr e);
class storage_io_error : public std::exception {
private:
std::error_code _code;
std::string _what;
public:
storage_io_error(std::system_error& e) noexcept
: _code{e.code()}
, _what{std::string("Storage I/O error: ") + std::to_string(e.code().value()) + ": " + e.what()}
{ }
virtual const char* what() const noexcept override {
return _what.c_str();
}
const std::error_code& code() const { return _code; }
};