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    1: #ifndef HEADER_CURL_HTTP2_H
    2: #define HEADER_CURL_HTTP2_H
    3: /***************************************************************************
    4:  *                                  _   _ ____  _
    5:  *  Project                     ___| | | |  _ \| |
    6:  *                             / __| | | | |_) | |
    7:  *                            | (__| |_| |  _ <| |___
    8:  *                             \___|\___/|_| \_\_____|
    9:  *
   10:  * Copyright (C) 1998 - 2020, 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.haxx.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:  ***************************************************************************/
   24: 
   25: #include "curl_setup.h"
   26: 
   27: #ifdef USE_NGHTTP2
   28: #include "http.h"
   29: 
   30: /* value for MAX_CONCURRENT_STREAMS we use until we get an updated setting
   31:    from the peer */
   32: #define DEFAULT_MAX_CONCURRENT_STREAMS 13
   33: 
   34: /*
   35:  * Store nghttp2 version info in this buffer, Prefix with a space.  Return
   36:  * total length written.
   37:  */
   38: int Curl_http2_ver(char *p, size_t len);
   39: 
   40: const char *Curl_http2_strerror(uint32_t err);
   41: 
   42: CURLcode Curl_http2_init(struct connectdata *conn);
   43: void Curl_http2_init_state(struct UrlState *state);
   44: void Curl_http2_init_userset(struct UserDefined *set);
   45: CURLcode Curl_http2_request_upgrade(Curl_send_buffer *req,
   46:                                     struct connectdata *conn);
   47: CURLcode Curl_http2_setup(struct connectdata *conn);
   48: CURLcode Curl_http2_switched(struct connectdata *conn,
   49:                              const char *data, size_t nread);
   50: /* called from http_setup_conn */
   51: void Curl_http2_setup_conn(struct connectdata *conn);
   52: void Curl_http2_setup_req(struct Curl_easy *data);
   53: void Curl_http2_done(struct Curl_easy *data, bool premature);
   54: CURLcode Curl_http2_done_sending(struct connectdata *conn);
   55: CURLcode Curl_http2_add_child(struct Curl_easy *parent,
   56:                               struct Curl_easy *child,
   57:                               bool exclusive);
   58: void Curl_http2_remove_child(struct Curl_easy *parent,
   59:                              struct Curl_easy *child);
   60: void Curl_http2_cleanup_dependencies(struct Curl_easy *data);
   61: CURLcode Curl_http2_stream_pause(struct Curl_easy *data, bool pause);
   62: 
   63: /* returns true if the HTTP/2 stream error was HTTP_1_1_REQUIRED */
   64: bool Curl_h2_http_1_1_error(struct connectdata *conn);
   65: #else /* USE_NGHTTP2 */
   66: #define Curl_http2_request_upgrade(x,y) CURLE_UNSUPPORTED_PROTOCOL
   67: #define Curl_http2_setup(x) CURLE_UNSUPPORTED_PROTOCOL
   68: #define Curl_http2_switched(x,y,z) CURLE_UNSUPPORTED_PROTOCOL
   69: #define Curl_http2_setup_conn(x) Curl_nop_stmt
   70: #define Curl_http2_setup_req(x)
   71: #define Curl_http2_init_state(x)
   72: #define Curl_http2_init_userset(x)
   73: #define Curl_http2_done(x,y)
   74: #define Curl_http2_done_sending(x)
   75: #define Curl_http2_add_child(x, y, z)
   76: #define Curl_http2_remove_child(x, y)
   77: #define Curl_http2_cleanup_dependencies(x)
   78: #define Curl_http2_stream_pause(x, y)
   79: #define Curl_h2_http_1_1_error(x) 0
   80: #endif
   81: 
   82: #endif /* HEADER_CURL_HTTP2_H */