1 files changed, 64 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/in_systemd/systemd_db.h b/src/fluent-bit/plugins/in_systemd/systemd_db.h
new file mode 100644
index 000000000..da8d6e195
--- /dev/null
+++ b/src/fluent-bit/plugins/in_systemd/systemd_db.h
@@ -0,0 +1,64 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/*  Fluent Bit
+ *  ==========
+ *  Copyright (C) 2015-2022 The Fluent Bit Authors
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef FLB_SYSTEMD_DB_H
+#define FLB_SYSTEMD_DB_H
+
+#include <fluent-bit/flb_info.h>
+#include <fluent-bit/flb_input.h>
+#include <fluent-bit/flb_config.h>
+
+#include "systemd_config.h"
+
+#define SQL_CREATE_CURSOR                                               \
+    "CREATE TABLE IF NOT EXISTS in_systemd_cursor ("                    \
+    "  cursor  TEXT NOT NULL,"                                          \
+    "  updated INTEGER"                                                 \
+    ");"
+
+#define SQL_GET_CURSOR \
+    "SELECT * FROM in_systemd_cursor LIMIT 1;"
+
+#define SQL_INSERT_CURSOR                               \
+    "INSERT INTO in_systemd_cursor (cursor, updated)"   \
+    "  VALUES ('%s', %lu);"
+
+#define SQL_COUNT_CURSOR                        \
+    "SELECT COUNT(*) FROM in_systemd_cursor;"
+
+#define SQL_UPDATE_CURSOR                                               \
+    "UPDATE in_systemd_cursor SET cursor=@cursor, updated=@updated;"
+
+#define SQL_DELETE_DUPS                             \
+    "DELETE FROM in_systemd_cursor WHERE ROWID < "  \
+    "(SELECT MAX(ROWID) FROM in_systemd_cursor);"
+
+#define SQL_PRAGMA_SYNC                         \
+    "PRAGMA synchronous=%i;"
+
+struct flb_sqldb *flb_systemd_db_open(const char *path,
+                                      struct flb_input_instance *ins,
+                                      struct flb_systemd_config *ctx,
+                                      struct flb_config *config);
+int flb_systemd_db_close(struct flb_sqldb *db);
+int flb_systemd_db_init_cursor(struct flb_systemd_config *ctx, const char *cursor);
+int flb_systemd_db_set_cursor(struct flb_systemd_config *ctx, const char *cursor);
+char *flb_systemd_db_get_cursor(struct flb_systemd_config *ctx);
+
+#endif