cfl_record_accessor: Implement generic CFL based record accessor

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

include/fluent-bit/flb_cfl_record_accessor.h

@@ -0,0 +1,64 @@
+/* -*- 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_RECORD_ACCESSOR_H
+#define FLB_CFL_RECORD_ACCESSOR_H
+
+#include <fluent-bit/flb_info.h>
+#include <fluent-bit/flb_regex.h>
+#include <fluent-bit/flb_sds.h>
+#include <fluent-bit/flb_sds_list.h>
+#include <monkey/mk_core.h>
+#include <cfl/cfl.h>
+
+struct flb_cfl_record_accessor {
+    size_t size_hint;
+    flb_sds_t pattern;
+    struct mk_list list;         /* List of parsed strings */
+    struct mk_list _head;        /* Head to custom list (only used by flb_mp.h) */
+};
+void flb_cfl_ra_destroy(struct flb_cfl_record_accessor *cra);
+int flb_cfl_ra_subkey_count(struct flb_cfl_record_accessor *cra);
+struct flb_cfl_record_accessor *flb_cfl_ra_create(char *str, int translate_env);
+flb_sds_t flb_cfl_ra_create_str_from_list(struct flb_sds_list *str_list);
+struct flb_cfl_record_accessor *flb_cfl_ra_create_from_list(struct flb_sds_list *str_list, int translate_env);
+flb_sds_t flb_cfl_ra_translate(struct flb_cfl_record_accessor *cra,
+                                char *tag, int tag_len,
+                                struct cfl_variant var, struct flb_regex_search *result);
+flb_sds_t flb_cfl_ra_translate_check(struct flb_cfl_record_accessor *cra,
+                                      char *tag, int tag_len,
+                                      struct cfl_variant var, struct flb_regex_search *result,
+                                      int check);
+void flb_cfl_ra_dump(struct flb_cfl_record_accessor *cra);
+int flb_cfl_ra_is_static(struct flb_cfl_record_accessor *cra);
+int flb_cfl_ra_strcmp(struct flb_cfl_record_accessor *ra, struct cfl_variant var,
+                      char *str, int len);
+int flb_cfl_ra_regex_match(struct flb_cfl_record_accessor *cra, struct cfl_variant var,
+                           struct flb_regex *regex, struct flb_regex_search *result);
+int flb_cfl_ra_get_kv_pair(struct flb_cfl_record_accessor *ra,
+                           struct cfl_variant var,
+                           cfl_sds_t *start_key,
+                           cfl_sds_t *out_key, struct cfl_variant **out_val);
+struct flb_cfl_ra_value *flb_cfl_ra_get_value_object(struct flb_cfl_record_accessor *cra,
+                                                     struct cfl_variant var);
+int flb_cfl_ra_update_kv_pair(struct flb_cfl_record_accessor *cra, struct cfl_variant var,
+                              cfl_sds_t in_key, struct cfl_variant *in_val);
+int flb_cfl_ra_append_kv_pair(struct flb_cfl_record_accessor *cra, struct cfl_variant var,
+                              struct cfl_variant *in_val);
+#endif

src/CMakeLists.txt

@@ -86,6 +86,7 @@ set(src
   flb_notification.c
   flb_lock.c
   flb_cfl_ra_key.c
+  flb_cfl_record_accessor.c
   )
 
 # Config format