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1be704e17e
This is a better match for what they do and the general "cpool" var/function prefix works well. The pool now handles very long hostnames correctly. The following changes have been made: * 'struct connectdata', e.g. connections, keep new members named `destination` and ' destination_len' that fully specifies interface+port+hostname of where the connection is going to. This is used in the pool for "bundling" of connections with the same destination. There is no limit on the length any more. * Locking: all locks are done inside conncache.c when calling into the pool and released on return. This eliminates hazards of the callers keeping track. * 'struct connectbundle' is now internal to the pool. It is no longer referenced by a connection. * 'bundle->multiuse' no longer exists. HTTP/2 and 3 and TLS filters no longer need to set it. Instead, the multi checks on leaving MSTATE_CONNECT or MSTATE_CONNECTING if the connection is now multiplexed and new, e.g. not conn->bits.reuse. In that case the processing of pending handles is triggered. * The pool's init is provided with a callback to invoke on all connections being discarded. This allows the cleanups in `Curl_disconnect` to run, wherever it is decided to retire a connection. * Several pool operations can now be fully done with one call. Pruning dead connections, upkeep and checks on pool limits can now directly discard connections and need no longer return those to the caller for doing that (as we have now the callback described above). * Finding a connection for reuse is now done via `Curl_cpool_find()` and the caller provides callbacks to evaluate the connection candidates. * The 'Curl_cpool_check_limits()' now directly uses the max values that may be set in the transfer's multi. No need to pass them around. Curl_multi_max_host_connections() and Curl_multi_max_total_connections() are gone. * Add method 'Curl_node_llist()' to get the llist a node is in. Used in cpool to verify connection are indeed in the list (or not in any list) as they need to. I left the conncache.[ch] as is for now and also did not touch the documentation. If we update that outside the feature window, we can do this in a separate PR. Multi-thread safety is not achieved by this PR, but since more details on how pools operate are now "internal" it is a better starting point to go for this in the future. Closes #14662
98 lines
3.8 KiB
C
98 lines
3.8 KiB
C
#ifndef HEADER_CURL_URL_H
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#define HEADER_CURL_URL_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) 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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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "curl_setup.h"
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/*
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* Prototypes for library-wide functions provided by url.c
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*/
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CURLcode Curl_init_do(struct Curl_easy *data, struct connectdata *conn);
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CURLcode Curl_open(struct Curl_easy **curl);
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CURLcode Curl_init_userdefined(struct Curl_easy *data);
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void Curl_freeset(struct Curl_easy *data);
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CURLcode Curl_uc_to_curlcode(CURLUcode uc);
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CURLcode Curl_close(struct Curl_easy **datap); /* opposite of curl_open() */
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CURLcode Curl_connect(struct Curl_easy *, bool *async, bool *protocol_connect);
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bool Curl_on_disconnect(struct Curl_easy *data,
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struct connectdata *, bool aborted);
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CURLcode Curl_setup_conn(struct Curl_easy *data,
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bool *protocol_done);
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void Curl_conn_free(struct Curl_easy *data, struct connectdata *conn);
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CURLcode Curl_parse_login_details(const char *login, const size_t len,
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char **userptr, char **passwdptr,
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char **optionsptr);
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/* Get protocol handler for a URI scheme
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* @param scheme URI scheme, case-insensitive
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* @return NULL of handler not found
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*/
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const struct Curl_handler *Curl_get_scheme_handler(const char *scheme);
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const struct Curl_handler *Curl_getn_scheme_handler(const char *scheme,
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size_t len);
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#define CURL_DEFAULT_PROXY_PORT 1080 /* default proxy port unless specified */
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#define CURL_DEFAULT_HTTPS_PROXY_PORT 443 /* default https proxy port unless
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specified */
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#ifdef CURL_DISABLE_VERBOSE_STRINGS
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#define Curl_verboseconnect(x,y,z) Curl_nop_stmt
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#else
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void Curl_verboseconnect(struct Curl_easy *data, struct connectdata *conn,
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int sockindex);
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#endif
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/**
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* Return TRUE iff the given connection is considered dead.
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* @param nowp NULL or pointer to time being checked against.
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*/
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bool Curl_conn_seems_dead(struct connectdata *conn,
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struct Curl_easy *data,
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struct curltime *nowp);
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/**
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* Perform upkeep operations on the connection.
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*/
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CURLcode Curl_conn_upkeep(struct Curl_easy *data,
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struct connectdata *conn,
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struct curltime *now);
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#if defined(USE_HTTP2) || defined(USE_HTTP3)
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void Curl_data_priority_clear_state(struct Curl_easy *data);
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#else
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#define Curl_data_priority_clear_state(x)
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#endif /* !(defined(USE_HTTP2) || defined(USE_HTTP3)) */
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#ifdef USE_NGHTTP2
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CURLcode Curl_data_priority_add_child(struct Curl_easy *parent,
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struct Curl_easy *child,
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bool exclusive);
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#else
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#define Curl_data_priority_add_child(x, y, z) CURLE_NOT_BUILT_IN
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#endif
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#endif /* HEADER_CURL_URL_H */
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