src/basic/strbuf.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2012 Kay Sievers <kay@vrfy.org>
   8 ***/
   9
  10 #include <stddef.h>
  11 #include <stdint.h>
  12 #include <sys/types.h>
  13
  14 struct strbuf {
  15         char *buf;
  16         size_t len;
  17         struct strbuf_node *root;
  18
  19         size_t nodes_count;
  20         size_t in_count;
  21         size_t in_len;
  22         size_t dedup_len;
  23         size_t dedup_count;
  24 };
  25
  26 struct strbuf_node {
  27         size_t value_off;
  28         size_t value_len;
  29
  30         struct strbuf_child_entry *children;
  31         uint8_t children_count;
  32 };
  33
  34 struct strbuf_child_entry {
  35         uint8_t c;
  36         struct strbuf_node *child;
  37 };
  38
  39 struct strbuf *strbuf_new(void);
  40 ssize_t strbuf_add_string(struct strbuf *str, const char *s, size_t len);
  41 void strbuf_complete(struct strbuf *str);
  42 void strbuf_cleanup(struct strbuf *str);