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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
commita175314c3e5827eb193872241446f2f8f5c9d33c (patch)
treecd3d60ca99ae00829c52a6ca79150a5b6e62528b /wsrep-lib/include/wsrep/xid.hpp
parentInitial commit. (diff)
downloadmariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.tar.xz
mariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.zip
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'wsrep-lib/include/wsrep/xid.hpp')
-rw-r--r--wsrep-lib/include/wsrep/xid.hpp111
1 files changed, 111 insertions, 0 deletions
diff --git a/wsrep-lib/include/wsrep/xid.hpp b/wsrep-lib/include/wsrep/xid.hpp
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+/*
+ * Copyright (C) 2019 Codership Oy <info@codership.com>
+ *
+ * This file is part of wsrep-lib.
+ *
+ * Wsrep-lib is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Wsrep-lib 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 wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef WSREP_XID_HPP
+#define WSREP_XID_HPP
+
+#include <iosfwd>
+#include "buffer.hpp"
+#include "exception.hpp"
+
+namespace wsrep
+{
+ class xid
+ {
+ public:
+ xid()
+ : format_id_(-1)
+ , gtrid_len_(0)
+ , bqual_len_(0)
+ , data_()
+ { }
+
+ xid(long format_id, long gtrid_len,
+ long bqual_len, const char* data)
+ : format_id_(format_id)
+ , gtrid_len_(gtrid_len)
+ , bqual_len_(bqual_len)
+ , data_()
+ {
+ if (gtrid_len_ > 64 || bqual_len_ > 64)
+ {
+ throw wsrep::runtime_error("maximum wsrep::xid size exceeded");
+ }
+ const long len = gtrid_len_ + bqual_len_;
+ if (len > 0)
+ {
+ data_.push_back(data, data + len);
+ }
+ }
+
+ xid(const xid& xid)
+ : format_id_(xid.format_id_)
+ , gtrid_len_(xid.gtrid_len_)
+ , bqual_len_(xid.bqual_len_)
+ , data_(xid.data_)
+ { }
+
+ bool is_null() const
+ {
+ return format_id_ == -1;
+ }
+
+ void clear()
+ {
+ format_id_ = -1;
+ gtrid_len_ = 0;
+ bqual_len_ = 0;
+ data_.clear();
+ }
+
+ xid& operator= (const xid& other)
+ {
+ format_id_ = other.format_id_;
+ gtrid_len_ = other.gtrid_len_;
+ bqual_len_ = other.bqual_len_;
+ data_ = other.data_;
+ return *this;
+ }
+
+ bool operator==(const xid& other) const
+ {
+ if (format_id_ != other.format_id_ ||
+ gtrid_len_ != other.gtrid_len_ ||
+ bqual_len_ != other.bqual_len_ ||
+ data_.size() != other.data_.size())
+ {
+ return false;
+ }
+ return data_ == other.data_;
+ }
+
+ friend std::string to_string(const wsrep::xid& xid);
+ friend std::ostream& operator<<(std::ostream& os, const wsrep::xid& xid);
+ protected:
+ long format_id_;
+ long gtrid_len_;
+ long bqual_len_;
+ mutable_buffer data_;
+ };
+
+ std::string to_string(const wsrep::xid& xid);
+ std::ostream& operator<<(std::ostream& os, const wsrep::xid& xid);
+}
+
+#endif // WSREP_XID_HPP