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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
commite6918187568dbd01842d8d1d2c808ce16a894239 (patch)
tree64f88b554b444a49f656b6c656111a145cbbaa28 /src/rgw/driver/dbstore/sqlite/connection.h
parentInitial commit. (diff)
downloadceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz
ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/rgw/driver/dbstore/sqlite/connection.h')
-rw-r--r--src/rgw/driver/dbstore/sqlite/connection.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/src/rgw/driver/dbstore/sqlite/connection.h b/src/rgw/driver/dbstore/sqlite/connection.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab ft=cpp
+
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2022 Red Hat, Inc.
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#pragma once
+
+#include <memory>
+#include <sqlite3.h>
+
+#include <fmt/format.h>
+
+#include "sqlite/statement.h"
+
+class DoutPrefixProvider;
+
+namespace rgw::dbstore::sqlite {
+
+// owning sqlite3 pointer
+struct db_deleter {
+ void operator()(sqlite3* p) const { ::sqlite3_close(p); }
+};
+using db_ptr = std::unique_ptr<sqlite3, db_deleter>;
+
+
+// open the database file or throw on error
+db_ptr open_database(const char* filename, int flags);
+
+
+struct Connection {
+ db_ptr db;
+ // map of statements, prepared on first use
+ std::map<std::string_view, stmt_ptr> statements;
+
+ explicit Connection(db_ptr db) : db(std::move(db)) {}
+};
+
+// sqlite connection factory for ConnectionPool
+class ConnectionFactory {
+ std::string uri;
+ int flags;
+ public:
+ ConnectionFactory(std::string uri, int flags)
+ : uri(std::move(uri)), flags(flags) {}
+
+ auto operator()(const DoutPrefixProvider* dpp)
+ -> std::unique_ptr<Connection>
+ {
+ auto db = open_database(uri.c_str(), flags);
+ return std::make_unique<Connection>(std::move(db));
+ }
+};
+
+} // namespace rgw::dbstore::sqlite