1 files changed, 53 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/filter_expect/expect.h b/src/fluent-bit/plugins/filter_expect/expect.h
new file mode 100644
index 000000000..bc7939d3d
--- /dev/null
+++ b/src/fluent-bit/plugins/filter_expect/expect.h
@@ -0,0 +1,53 @@
+/* -*- 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_FILTER_EXPECT_H
+#define FLB_FILTER_EXPECT_H
+
+#include <fluent-bit/flb_filter_plugin.h>
+#include <fluent-bit/flb_sds.h>
+#include <fluent-bit/flb_record_accessor.h>
+
+#define FLB_EXP_WARN              0
+#define FLB_EXP_EXIT              1
+#define FLB_EXP_RESULT_KEY        2
+
+/* Rule types */
+#define FLB_EXP_KEY_EXISTS        0   /* key exists */
+#define FLB_EXP_KEY_NOT_EXISTS    1   /* key not exists */
+#define FLB_EXP_KEY_VAL_NULL      2   /* key value has a NULL value */
+#define FLB_EXP_KEY_VAL_NOT_NULL  3   /* key value has a NULL value */
+#define FLB_EXP_KEY_VAL_EQ        4   /* key value is equal some given value */
+
+struct flb_expect_rule {
+    int type;
+    flb_sds_t value;              /* original value given in the config       */
+    flb_sds_t expect;             /* specific value match (FLB_EXP_KEY_VAL_EQ */
+    struct flb_record_accessor *ra;
+    struct mk_list _head;
+};
+
+struct flb_expect {
+    int action;
+    flb_sds_t result_key;
+    struct mk_list rules;
+    struct flb_filter_instance *ins;
+};
+
+#endif