xref: /third_party/curl/lib/http2.h (revision 13498266) 
1#ifndef HEADER_CURL_HTTP2_H
2#define HEADER_CURL_HTTP2_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#include "curl_setup.h"
28
29#ifdef USE_NGHTTP2
30#include "http.h"
31
32/* value for MAX_CONCURRENT_STREAMS we use until we get an updated setting
33   from the peer */
34#define DEFAULT_MAX_CONCURRENT_STREAMS 100
35
36/*
37 * Store nghttp2 version info in this buffer.
38 */
39void Curl_http2_ver(char *p, size_t len);
40
41CURLcode Curl_http2_request_upgrade(struct dynbuf *req,
42                                    struct Curl_easy *data);
43
44/* returns true if the HTTP/2 stream error was HTTP_1_1_REQUIRED */
45bool Curl_h2_http_1_1_error(struct Curl_easy *data);
46
47bool Curl_conn_is_http2(const struct Curl_easy *data,
48                        const struct connectdata *conn,
49                        int sockindex);
50bool Curl_http2_may_switch(struct Curl_easy *data,
51                           struct connectdata *conn,
52                           int sockindex);
53
54CURLcode Curl_http2_switch(struct Curl_easy *data,
55                           struct connectdata *conn, int sockindex);
56
57CURLcode Curl_http2_switch_at(struct Curl_cfilter *cf, struct Curl_easy *data);
58
59CURLcode Curl_http2_upgrade(struct Curl_easy *data,
60                            struct connectdata *conn, int sockindex,
61                            const char *ptr, size_t nread);
62
63extern struct Curl_cftype Curl_cft_nghttp2;
64
65#else /* USE_NGHTTP2 */
66
67#define Curl_cf_is_http2(a,b) FALSE
68#define Curl_conn_is_http2(a,b,c) FALSE
69#define Curl_http2_may_switch(a,b,c) FALSE
70
71#define Curl_http2_request_upgrade(x,y) CURLE_UNSUPPORTED_PROTOCOL
72#define Curl_http2_switch(a,b,c)        CURLE_UNSUPPORTED_PROTOCOL
73#define Curl_http2_upgrade(a,b,c,d,e)   CURLE_UNSUPPORTED_PROTOCOL
74#define Curl_h2_http_1_1_error(x) 0
75#endif
76
77#endif /* HEADER_CURL_HTTP2_H */
78