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215db086e0
... in most cases instead of 'struct connectdata *' but in some cases in addition to. - We mostly operate on transfers and not connections. - We need the transfer handle to log, store data and more. Everything in libcurl is driven by a transfer (the CURL * in the public API). - This work clarifies and separates the transfers from the connections better. - We should avoid "conn->data". Since individual connections can be used by many transfers when multiplexing, making sure that conn->data points to the current and correct transfer at all times is difficult and has been notoriously error-prone over the years. The goal is to ultimately remove the conn->data pointer for this reason. Closes #6425
84 lines
3.4 KiB
C
84 lines
3.4 KiB
C
#ifndef HEADER_CURL_HTTP2_H
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#define HEADER_CURL_HTTP2_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "curl_setup.h"
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#ifdef USE_NGHTTP2
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#include "http.h"
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/* value for MAX_CONCURRENT_STREAMS we use until we get an updated setting
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from the peer */
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#define DEFAULT_MAX_CONCURRENT_STREAMS 13
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/*
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* Store nghttp2 version info in this buffer, Prefix with a space. Return
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* total length written.
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*/
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int Curl_http2_ver(char *p, size_t len);
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const char *Curl_http2_strerror(uint32_t err);
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CURLcode Curl_http2_init(struct connectdata *conn);
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void Curl_http2_init_state(struct UrlState *state);
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void Curl_http2_init_userset(struct UserDefined *set);
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CURLcode Curl_http2_request_upgrade(struct dynbuf *req,
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struct connectdata *conn);
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CURLcode Curl_http2_setup(struct Curl_easy *data, struct connectdata *conn);
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CURLcode Curl_http2_switched(struct Curl_easy *data,
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const char *ptr, size_t nread);
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/* called from http_setup_conn */
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void Curl_http2_setup_conn(struct connectdata *conn);
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void Curl_http2_setup_req(struct Curl_easy *data);
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void Curl_http2_done(struct Curl_easy *data, bool premature);
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CURLcode Curl_http2_done_sending(struct Curl_easy *data,
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struct connectdata *conn);
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CURLcode Curl_http2_add_child(struct Curl_easy *parent,
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struct Curl_easy *child,
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bool exclusive);
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void Curl_http2_remove_child(struct Curl_easy *parent,
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struct Curl_easy *child);
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void Curl_http2_cleanup_dependencies(struct Curl_easy *data);
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CURLcode Curl_http2_stream_pause(struct Curl_easy *data, bool pause);
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/* returns true if the HTTP/2 stream error was HTTP_1_1_REQUIRED */
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bool Curl_h2_http_1_1_error(struct connectdata *conn);
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#else /* USE_NGHTTP2 */
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#define Curl_http2_request_upgrade(x,y) CURLE_UNSUPPORTED_PROTOCOL
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#define Curl_http2_setup(x,y) CURLE_UNSUPPORTED_PROTOCOL
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#define Curl_http2_switched(x,y,z) CURLE_UNSUPPORTED_PROTOCOL
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#define Curl_http2_setup_conn(x) Curl_nop_stmt
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#define Curl_http2_setup_req(x)
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#define Curl_http2_init_state(x)
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#define Curl_http2_init_userset(x)
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#define Curl_http2_done(x,y)
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#define Curl_http2_done_sending(x,y)
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#define Curl_http2_add_child(x, y, z)
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#define Curl_http2_remove_child(x, y)
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#define Curl_http2_cleanup_dependencies(x)
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#define Curl_http2_stream_pause(x, y)
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#define Curl_h2_http_1_1_error(x) 0
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#endif
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#endif /* HEADER_CURL_HTTP2_H */
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