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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:04:16 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:04:16 +0000
commita68fb2d8219f6bccc573009600e9f23e89226a5e (patch)
treed742d35d14ae816e99293d2b01face30e9f3a46b /wsrep-lib/include/wsrep/key.hpp
parentInitial commit. (diff)
downloadmariadb-10.6-upstream.tar.xz
mariadb-10.6-upstream.zip
Adding upstream version 1:10.6.11.upstream/1%10.6.11upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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1 files changed, 96 insertions, 0 deletions
diff --git a/wsrep-lib/include/wsrep/key.hpp b/wsrep-lib/include/wsrep/key.hpp
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+/*
+ * Copyright (C) 2018 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_KEY_HPP
+#define WSREP_KEY_HPP
+
+#include "exception.hpp"
+#include "buffer.hpp"
+
+#include <iosfwd>
+
+namespace wsrep
+{
+ /** @class key
+ *
+ * Certification key type.
+ */
+ class key
+ {
+ public:
+ enum type
+ {
+ shared,
+ reference,
+ update,
+ exclusive
+ };
+
+ key(enum type type)
+ : type_(type)
+ , key_parts_()
+ , key_parts_len_()
+ { }
+
+ /**
+ * Append key part to key.
+ *
+ * @param ptr Pointer to key part data. The caller is supposed to take
+ * care that the pointer remains valid over the lifetime
+ * if the key object.
+ * @param len Length of the key part data.
+ */
+ void append_key_part(const void* ptr, size_t len)
+ {
+ if (key_parts_len_ == 3)
+ {
+ throw wsrep::runtime_error("key parts exceed maximum of 3");
+ }
+ key_parts_[key_parts_len_] = wsrep::const_buffer(ptr, len);
+ ++key_parts_len_;
+ }
+
+ enum type type() const
+ {
+ return type_;
+ }
+
+ size_t size() const
+ {
+ return key_parts_len_;
+ }
+
+ const wsrep::const_buffer* key_parts() const
+ {
+ return key_parts_;
+ }
+ private:
+
+ enum type type_;
+ wsrep::const_buffer key_parts_[3];
+ size_t key_parts_len_;
+ };
+
+ typedef std::vector<wsrep::key> key_array;
+
+ std::ostream& operator<<(std::ostream&, enum wsrep::key::type);
+ std::ostream& operator<<(std::ostream&, const wsrep::key&);
+}
+
+#endif // WSREP_KEY_HPP