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/* -*- 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.
*/
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_mem.h>
#include <fluent-bit/flb_log.h>
#include <fluent-bit/multiline/flb_ml.h>
#include <fluent-bit/multiline/flb_ml_parser.h>
struct flb_ml_group *flb_ml_group_create(struct flb_ml *ml)
{
struct flb_ml_group *group;
group = flb_calloc(1, sizeof(struct flb_ml_group));
if (!group) {
flb_errno();
return NULL;
}
group->id = mk_list_size(&ml->groups);
group->ml = ml;
group->lru_parser = NULL;
mk_list_init(&group->parsers);
mk_list_add(&group->_head, &ml->groups);
return group;
}
/*
* Link a parser instance into the active group, if no group exists, a default
* one is created.
*/
int flb_ml_group_add_parser(struct flb_ml *ctx, struct flb_ml_parser_ins *p)
{
struct flb_ml_group *group = NULL;
if (mk_list_size(&ctx->groups) == 0) {
group = flb_ml_group_create(ctx);
if (!group) {
return -1;
}
}
else {
/* retrieve the latest active group */
group = mk_list_entry_last(&ctx->groups, struct flb_ml_group, _head);
}
if (!group) {
return -1;
}
mk_list_add(&p->_head, &group->parsers);
return 0;
}
void flb_ml_group_destroy(struct flb_ml_group *group)
{
struct mk_list *head;
struct mk_list *tmp;
struct flb_ml_parser_ins *parser_i;
/* destroy parser instances */
mk_list_foreach_safe(head, tmp, &group->parsers) {
parser_i = mk_list_entry(head, struct flb_ml_parser_ins, _head);
flb_ml_parser_instance_destroy(parser_i);
}
mk_list_del(&group->_head);
flb_free(group);
}
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