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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/src/gtid.cpp
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>
Diffstat (limited to 'wsrep-lib/src/gtid.cpp')
-rw-r--r--wsrep-lib/src/gtid.cpp90
1 files changed, 90 insertions, 0 deletions
diff --git a/wsrep-lib/src/gtid.cpp b/wsrep-lib/src/gtid.cpp
new file mode 100644
index 00000000..af32d524
--- /dev/null
+++ b/wsrep-lib/src/gtid.cpp
@@ -0,0 +1,90 @@
+/*
+ * 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/>.
+ */
+
+#include "wsrep/gtid.hpp"
+
+#include <cerrno>
+#include <iostream>
+#include <sstream>
+
+const wsrep::gtid wsrep::gtid::undefined_ = wsrep::gtid();
+
+std::ostream& wsrep::operator<<(std::ostream& os, const wsrep::gtid& gtid)
+{
+ return (os << gtid.id() << ":" << gtid.seqno());
+}
+
+std::istream& wsrep::operator>>(std::istream& is, wsrep::gtid& gtid)
+{
+ std::string id_str;
+ std::getline(is, id_str, ':');
+ long long seq;
+ is >> seq;
+ if (!is)
+ {
+ is.clear(std::ios_base::failbit);
+ return is;
+ }
+ try
+ {
+ // wsrep::id constructor will throw if it cannot parse the
+ // id_str.
+ gtid = wsrep::gtid(wsrep::id(id_str), wsrep::seqno(seq));
+ }
+ catch (const wsrep::runtime_error& e)
+ {
+ // Formatting or extraction error. Clear the istream state and
+ // set failibit.
+ is.clear(std::ios_base::failbit);
+ }
+ return is;
+}
+
+ssize_t wsrep::scan_from_c_str(
+ const char* buf, size_t buf_len, wsrep::gtid& gtid)
+{
+ std::istringstream is(std::string(buf, buf_len));
+ is >> gtid;
+ // Some failure occurred
+ if (!is)
+ {
+ return -EINVAL;
+ }
+ // Whole string was consumed without failures
+ if (is.eof())
+ {
+ return static_cast<ssize_t>(buf_len);
+ }
+ // The string was not consumed completely, return current position
+ // of the istream.
+ return static_cast<ssize_t>(is.tellg());
+}
+
+ssize_t wsrep::print_to_c_str(
+ const wsrep::gtid& gtid, char* buf, size_t buf_len)
+{
+ std::ostringstream os;
+ os << gtid;
+ if (os.str().size() > buf_len)
+ {
+ return -ENOBUFS;
+ }
+ std::strncpy(buf, os.str().c_str(), os.str().size());
+ return static_cast<ssize_t>(os.str().size());
+}