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https://github.com/codership/wsrep-lib.git
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29835fbec0
Replace all wsrep_api.h dependencies with similar code in library implementation. Also add gcc/g++ 4.4 to travis automation to get better compiler coverage.
91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
/*
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* Copyright (C) 2018 Codership Oy <info@codership.com>
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*
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* This file is part of wsrep-lib.
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*
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* Wsrep-lib is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* Wsrep-lib is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "wsrep/gtid.hpp"
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#include <cerrno>
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#include <iostream>
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#include <sstream>
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const wsrep::gtid wsrep::gtid::undefined_ = wsrep::gtid();
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std::ostream& wsrep::operator<<(std::ostream& os, const wsrep::gtid& gtid)
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{
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return (os << gtid.id() << ":" << gtid.seqno());
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}
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std::istream& wsrep::operator>>(std::istream& is, wsrep::gtid& gtid)
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{
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std::string id_str;
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std::getline(is, id_str, ':');
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long long seq;
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is >> seq;
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if (!is)
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{
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is.clear(std::ios_base::failbit);
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return is;
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}
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try
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{
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// wsrep::id constructor will throw if it cannot parse the
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// id_str.
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gtid = wsrep::gtid(wsrep::id(id_str), wsrep::seqno(seq));
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}
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catch (const wsrep::runtime_error& e)
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{
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// Formatting or extraction error. Clear the istream state and
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// set failibit.
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is.clear(std::ios_base::failbit);
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}
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return is;
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}
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ssize_t wsrep::scan_from_c_str(
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const char* buf, size_t buf_len, wsrep::gtid& gtid)
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{
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std::istringstream is(std::string(buf, buf_len));
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is >> gtid;
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// Whole string was consumed without failures
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if (is && is.eof())
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{
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return buf_len;
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}
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// Some failure occurred
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if (!is)
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{
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return -EINVAL;
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}
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// The string was not consumed completely, return current position
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// of the istream.
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return is.tellg();
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}
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ssize_t wsrep::print_to_c_str(
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const wsrep::gtid& gtid, char* buf, size_t buf_len)
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{
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std::ostringstream os;
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os << gtid;
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if (os.str().size() > buf_len)
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{
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return -ENOBUFS;
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}
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std::strncpy(buf, os.str().c_str(), os.str().size());
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return os.str().size();
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}
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