cfl_ra_key: Implement generic CFL based RA key functionality

Signed-off-by: Hiroshi Hatake <[email protected]>

include/fluent-bit/flb_cfl_ra_key.h

@@ -0,0 +1,74 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/*  Fluent Bit
+ *  ==========
+ *  Copyright (C) 2015-2024 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_CFL_RA_KEY_H
+#define FLB_CFL_RA_KEY_H
+
+#include <fluent-bit/flb_info.h>
+#include <fluent-bit/flb_sds.h>
+#include <fluent-bit/flb_regex.h>
+#include <fluent-bit/record_accessor/flb_ra_parser.h>
+#include <monkey/mk_core.h>
+#include <cfl/cfl.h>
+
+#include <stdbool.h>
+
+enum cfl_ra_types {
+    FLB_CFL_RA_BOOL = 0,
+    FLB_CFL_RA_INT,
+    FLB_CFL_RA_FLOAT,
+    FLB_CFL_RA_STRING,
+    FLB_CFL_RA_NULL
+};
+
+/* condition value types */
+typedef union {
+    bool boolean;
+    int64_t i64;
+    double f64;
+    flb_sds_t string;
+} cfl_ra_val;
+
+/* Represent any value object */
+struct flb_cfl_ra_value {
+    int type;
+    struct cfl_variant v;
+    cfl_ra_val val;
+};
+
+struct flb_cfl_ra_value *flb_cfl_ra_key_to_value(flb_sds_t ckey,
+                                                   struct cfl_variant vobj,
+                                                   struct mk_list *subkeys);
+void flb_cfl_ra_key_value_destroy(struct flb_cfl_ra_value *v);
+
+int flb_cfl_ra_key_value_get(flb_sds_t ckey, struct cfl_variant vobj,
+                             struct mk_list *subkeys,
+                             cfl_sds_t *start_key,
+                             cfl_sds_t *out_key, struct cfl_variant **out_val);
+
+int flb_cfl_ra_key_strcmp(flb_sds_t ckey, struct cfl_variant vobj,
+                          struct mk_list *subkeys, char *str, int len);
+int flb_cfl_ra_key_regex_match(flb_sds_t ckey, struct cfl_variant vobj,
+                               struct mk_list *subkeys, struct flb_regex *regex,
+                               struct flb_regex_search *result);
+int flb_cfl_ra_key_value_append(struct flb_ra_parser *rp, struct cfl_variant *vobj,
+                                struct cfl_variant *in_val);
+int flb_cfl_ra_key_value_update(struct flb_ra_parser *rp,  struct cfl_variant *vobj,
+                                cfl_sds_t in_key, struct cfl_variant *in_val);
+#endif

src/CMakeLists.txt

@@ -85,6 +85,7 @@ set(src
   flb_msgpack_append_message.c
   flb_notification.c
   flb_lock.c
+  flb_cfl_ra_key.c
   )
 
 # Config format