curl/lib/url.h
Stefan Eissing 71b7e01610
lib: connect/h2/h3 refactor
Refactoring of connection setup and happy eyeballing. Move
nghttp2. ngtcp2, quiche and msh3 into connection filters.

 - eyeballing cfilter that uses sub-filters for performing parallel connects
 - socket cfilter for all transport types, including QUIC
 - QUIC implementations in cfilter, can now participate in eyeballing
 - connection setup is more dynamic in order to adapt to what filter did
   really connect.  Relevant to see if a SSL filter needs to be added or
   if SSL has already been provided
 - HTTP/3 test cases similar to HTTP/2
 - multiuse of parallel transfers for HTTP/3, tested for ngtcp2 and quiche

 - Fix for data attach/detach in VTLS filters that could lead to crashes
   during parallel transfers.
 - Eliminating setup() methods in cfilters, no longer needed.
 - Improving Curl_conn_is_alive() to replace Curl_connalive() and
   integrated ssl alive checks into cfilter.
 - Adding CF_CNTRL_CONN_INFO_UPDATE to tell filters to update
   connection into and persist it at the easy handle.

 - Several more cfilter related cleanups and moves:
   - stream_weigth and dependency info is now wrapped in struct
     Curl_data_priority
   - Curl_data_priority members depend is available in HTTP2|HTTP3
   - Curl_data_priority members depend on NGHTTP2 support
   - handling init/reset/cleanup of priority part of url.c
   - data->state.priority same struct, but shallow copy for compares only

 - PROTOPT_STREAM has been removed
   - Curl_conn_is_mulitplex() now available to check on capability

 - Adding query method to connection filters.
   - ngtcp2+quiche: implementing query for max concurrent transfers.

 - Adding is_alive and keep_alive cfilter methods. Adding DATA_SETUP event.
   - setting keepalive timestamp on connect
   - DATA_SETUP is called after the connection has been completely
     setup (but may not connected yet) to allow filters to initialize
     data members they use.

 - there is no socket to be had with msh3, it is unclear how select
   shall work

 - manual test via "curl --http3 https://curl.se" fail with "empty
   reply from server".

 - Various socket/conn related cleanups:
   - Curl_socket is now Curl_socket_open and in cf-socket.c
   - Curl_closesocket is now Curl_socket_close and in cf-socket.c
   - Curl_ssl_use has been replaced with Cur_conn_is_ssl
   - Curl_conn_tcp_accepted_set has been split into
     Curl_conn_tcp_listen_set and Curl_conn_tcp_accepted_set
     with a clearer purpose

Closes #10141
2022-12-30 16:43:19 +01:00

79 lines
3.1 KiB
C

#ifndef HEADER_CURL_URL_H
#define HEADER_CURL_URL_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2022, 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.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "curl_setup.h"
/*
* Prototypes for library-wide functions provided by url.c
*/
CURLcode Curl_init_do(struct Curl_easy *data, struct connectdata *conn);
CURLcode Curl_open(struct Curl_easy **curl);
CURLcode Curl_init_userdefined(struct Curl_easy *data);
void Curl_freeset(struct Curl_easy *data);
CURLcode Curl_uc_to_curlcode(CURLUcode uc);
CURLcode Curl_close(struct Curl_easy **datap); /* opposite of curl_open() */
CURLcode Curl_connect(struct Curl_easy *, bool *async, bool *protocol_connect);
void Curl_disconnect(struct Curl_easy *data,
struct connectdata *, bool dead_connection);
CURLcode Curl_setup_conn(struct Curl_easy *data,
bool *protocol_done);
void Curl_free_request_state(struct Curl_easy *data);
CURLcode Curl_parse_login_details(const char *login, const size_t len,
char **userptr, char **passwdptr,
char **optionsptr);
const struct Curl_handler *Curl_builtin_scheme(const char *scheme,
size_t schemelen);
#define CURL_DEFAULT_PROXY_PORT 1080 /* default proxy port unless specified */
#define CURL_DEFAULT_HTTPS_PROXY_PORT 443 /* default https proxy port unless
specified */
#ifdef CURL_DISABLE_VERBOSE_STRINGS
#define Curl_verboseconnect(x,y) Curl_nop_stmt
#else
void Curl_verboseconnect(struct Curl_easy *data, struct connectdata *conn);
#endif
#if defined(USE_HTTP2) || defined(USE_HTTP3)
void Curl_data_priority_cleanup(struct Curl_easy *data);
void Curl_data_priority_clear_state(struct Curl_easy *data);
#else
#define Curl_data_priority_cleanup(x)
#define Curl_data_priority_clear_state(x)
#endif /* !(defined(USE_HTTP2) || defined(USE_HTTP3)) */
#ifdef USE_NGHTTP2
CURLcode Curl_data_priority_add_child(struct Curl_easy *parent,
struct Curl_easy *child,
bool exclusive);
#else
#define Curl_data_priority_add_child(x, y, z) CURLE_NOT_BUILT_IN
#endif
#endif /* HEADER_CURL_URL_H */