xref: /third_party/curl/lib/bufref.h (revision 13498266)
1#ifndef HEADER_CURL_BUFREF_H
2#define HEADER_CURL_BUFREF_H
3/***************************************************************************
4 *                                  _   _ ____  _
5 *  Project                     ___| | | |  _ \| |
6 *                             / __| | | | |_) | |
7 *                            | (__| |_| |  _ <| |___
8 *                             \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
11 *
12 * This software is licensed as described in the file COPYING, which
13 * you should have received as part of this distribution. The terms
14 * are also available at https://curl.se/docs/copyright.html.
15 *
16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17 * copies of the Software, and permit persons to whom the Software is
18 * furnished to do so, under the terms of the COPYING file.
19 *
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
22 *
23 * SPDX-License-Identifier: curl
24 *
25 ***************************************************************************/
26
27/*
28 * Generic buffer reference.
29 */
30struct bufref {
31  void (*dtor)(void *);         /* Associated destructor. */
32  const unsigned char *ptr;     /* Referenced data buffer. */
33  size_t len;                   /* The data size in bytes. */
34#ifdef DEBUGBUILD
35  int signature;                /* Detect API use mistakes. */
36#endif
37};
38
39
40void Curl_bufref_init(struct bufref *br);
41void Curl_bufref_set(struct bufref *br, const void *ptr, size_t len,
42                     void (*dtor)(void *));
43const unsigned char *Curl_bufref_ptr(const struct bufref *br);
44size_t Curl_bufref_len(const struct bufref *br);
45CURLcode Curl_bufref_memdup(struct bufref *br, const void *ptr, size_t len);
46void Curl_bufref_free(struct bufref *br);
47
48#endif
49