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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.h>
#include <fluent-bit/flb_sds_list.h>
size_t flb_sds_list_size(struct flb_sds_list *list)
{
if (list == NULL) {
return 0;
}
return mk_list_size(&list->strs);
}
struct flb_sds_list *flb_sds_list_create()
{
struct flb_sds_list *ret = NULL;
ret = flb_calloc(1, sizeof(struct flb_sds_list));
if (ret == NULL) {
return NULL;
}
mk_list_init(&ret->strs);
return ret;
}
int flb_sds_list_del(struct flb_sds_list_entry* entry)
{
if (entry == NULL) {
return -1;
}
if (entry->str != NULL) {
flb_sds_destroy(entry->str);
}
mk_list_del(&entry->_head);
flb_free(entry);
return 0;
}
int flb_sds_list_destroy(struct flb_sds_list *list)
{
struct mk_list *tmp = NULL;
struct mk_list *head = NULL;
struct flb_sds_list_entry *entry = NULL;
if (list == NULL) {
return -1;
}
mk_list_foreach_safe(head, tmp, &list->strs) {
entry = mk_list_entry(head, struct flb_sds_list_entry, _head);
flb_sds_list_del(entry);
}
flb_free(list);
return 0;
}
int flb_sds_list_add(struct flb_sds_list* list, char *in_str, size_t in_size)
{
flb_sds_t str;
struct flb_sds_list_entry *entry = NULL;
if (list == NULL || in_str == NULL || in_size == 0) {
return -1;
}
str = flb_sds_create_len(in_str, in_size);
if (str == NULL) {
return -1;
}
entry = flb_malloc(sizeof(struct flb_sds_list_entry));
if (entry == NULL) {
flb_errno();
flb_sds_destroy(str);
return -1;
}
entry->str = str;
mk_list_add(&entry->_head, &list->strs);
return 0;
}
int flb_sds_list_destroy_str_array(char **array)
{
char **str = array;
int i = 0;
if (array == NULL) {
return -1;
}
while(str[i] != NULL) {
flb_free(str[i]);
i++;
}
flb_free(array);
return 0;
}
/*
This function allocates NULL terminated string array from list.
The array should be destroyed by flb_sds_list_destroy_str_array.
*/
char **flb_sds_list_create_str_array(struct flb_sds_list *list)
{
int i = 0;
size_t size;
char **ret = NULL;
struct mk_list *tmp = NULL;
struct mk_list *head = NULL;
struct flb_sds_list_entry *entry = NULL;
if (list == NULL) {
return NULL;
}
size = flb_sds_list_size(list);
if (size == 0) {
return NULL;
}
ret = flb_malloc(sizeof(char*) * (size + 1));
if (ret == NULL) {
flb_errno();
return NULL;
}
mk_list_foreach_safe(head, tmp, &list->strs) {
entry = mk_list_entry(head, struct flb_sds_list_entry, _head);
if (entry == NULL) {
flb_free(ret);
return NULL;
}
ret[i] = flb_malloc(flb_sds_len(entry->str)+1);
if (ret[i] == NULL) {
flb_free(ret);
return NULL;
}
strncpy(ret[i], entry->str, flb_sds_len(entry->str));
ret[i][flb_sds_len(entry->str)] = '\0';
i++;
}
ret[i] = NULL;
return ret;
}
int flb_sds_list_del_last_entry(struct flb_sds_list* list)
{
struct flb_sds_list_entry *entry = NULL;
if (list == NULL || flb_sds_list_size(list) == 0) {
return -1;
}
entry = mk_list_entry_last(&list->strs, struct flb_sds_list_entry, _head);
if (entry == NULL) {
return -1;
}
return flb_sds_list_del(entry);
}
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