blob: 54c905946987ca95055a261cbe0f7e5b76544438 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
<!--
title: "String"
custom_edit_url: https://github.com/netdata/netdata/edit/master/src/libnetdata/string/README.md
sidebar_label: "String"
learn_status: "Published"
learn_topic_type: "Tasks"
learn_rel_path: "Developers/libnetdata"
-->
# STRING
STRING provides a way to allocate and free text strings, while de-duplicating them.
It can be used similarly to libc string functions:
- `strdup()` and `strdupz()` become `string_strdupz()`.
- `strlen()` becomes `string_strlen()` (and it does not walkthrough the bytes of the string).
- `free()` and `freez()` become `string_freez()`.
There is also a special `string_dup()` function that increases the reference counter of a STRING, avoiding the
index lookup to find it.
Once there is a `STRING *`, the actual `const char *` can be accessed with `string2str()`.
All STRING should be constant. Changing the contents of a `const char *` that has been acquired by `string2str()` should never happen.
|
