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curl/lib/http2.h
Daniel Stenberg 723c0e75fa
http2: remove conn->data use
... but instead use a private alternative that points to the "driving
transfer" from the connection. We set the "user data" associated with
the connection to be the connectdata struct, but when we drive transfers
the code still needs to know the pointer to the transfer. We can change
the user data to become the Curl_easy handle, but with older nghttp2
version we cannot dynamically update that pointer properly when
different transfers are used over the same connection.

Closes #6520
2021-02-15 16:33:53 +01:00

84 lines
3.4 KiB
C

#ifndef HEADER_CURL_HTTP2_H
#define HEADER_CURL_HTTP2_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_NGHTTP2
#include "http.h"
/* value for MAX_CONCURRENT_STREAMS we use until we get an updated setting
from the peer */
#define DEFAULT_MAX_CONCURRENT_STREAMS 13
/*
* Store nghttp2 version info in this buffer, Prefix with a space. Return
* total length written.
*/
int Curl_http2_ver(char *p, size_t len);
const char *Curl_http2_strerror(uint32_t err);
CURLcode Curl_http2_init(struct connectdata *conn);
void Curl_http2_init_state(struct UrlState *state);
void Curl_http2_init_userset(struct UserDefined *set);
CURLcode Curl_http2_request_upgrade(struct dynbuf *req,
struct Curl_easy *data);
CURLcode Curl_http2_setup(struct Curl_easy *data, struct connectdata *conn);
CURLcode Curl_http2_switched(struct Curl_easy *data,
const char *ptr, size_t nread);
/* called from http_setup_conn */
void Curl_http2_setup_conn(struct connectdata *conn);
void Curl_http2_setup_req(struct Curl_easy *data);
void Curl_http2_done(struct Curl_easy *data, bool premature);
CURLcode Curl_http2_done_sending(struct Curl_easy *data,
struct connectdata *conn);
CURLcode Curl_http2_add_child(struct Curl_easy *parent,
struct Curl_easy *child,
bool exclusive);
void Curl_http2_remove_child(struct Curl_easy *parent,
struct Curl_easy *child);
void Curl_http2_cleanup_dependencies(struct Curl_easy *data);
CURLcode Curl_http2_stream_pause(struct Curl_easy *data, bool pause);
/* returns true if the HTTP/2 stream error was HTTP_1_1_REQUIRED */
bool Curl_h2_http_1_1_error(struct connectdata *conn);
#else /* USE_NGHTTP2 */
#define Curl_http2_request_upgrade(x,y) CURLE_UNSUPPORTED_PROTOCOL
#define Curl_http2_setup(x,y) CURLE_UNSUPPORTED_PROTOCOL
#define Curl_http2_switched(x,y,z) CURLE_UNSUPPORTED_PROTOCOL
#define Curl_http2_setup_conn(x) Curl_nop_stmt
#define Curl_http2_setup_req(x)
#define Curl_http2_init_state(x)
#define Curl_http2_init_userset(x)
#define Curl_http2_done(x,y)
#define Curl_http2_done_sending(x,y)
#define Curl_http2_add_child(x, y, z)
#define Curl_http2_remove_child(x, y)
#define Curl_http2_cleanup_dependencies(x)
#define Curl_http2_stream_pause(x, y)
#define Curl_h2_http_1_1_error(x) 0
#endif
#endif /* HEADER_CURL_HTTP2_H */