1#ifndef HEADER_CURL_MULTIIF_H
2#define HEADER_CURL_MULTIIF_H
3/***************************************************************************
4 * _ _ ____ _
5 * Project ___| | | | _ \| |
6 * / __| | | | |_) | |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) 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.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 * SPDX-License-Identifier: curl
24 *
25 ***************************************************************************/
26
27/*
28 * Prototypes for library-wide functions provided by multi.c
29 */
30
31CURLcode Curl_updatesocket(struct Curl_easy *data);
32void Curl_expire(struct Curl_easy *data, timediff_t milli, expire_id);
33void Curl_expire_clear(struct Curl_easy *data);
34void Curl_expire_done(struct Curl_easy *data, expire_id id);
35CURLMcode Curl_update_timer(struct Curl_multi *multi) WARN_UNUSED_RESULT;
36void Curl_attach_connection(struct Curl_easy *data,
37 struct connectdata *conn);
38void Curl_detach_connection(struct Curl_easy *data);
39bool Curl_multiplex_wanted(const struct Curl_multi *multi);
40void Curl_set_in_callback(struct Curl_easy *data, bool value);
41bool Curl_is_in_callback(struct Curl_easy *easy);
42CURLcode Curl_preconnect(struct Curl_easy *data);
43
44void Curl_multi_connchanged(struct Curl_multi *multi);
45
46/* Internal version of curl_multi_init() accepts size parameters for the
47 socket, connection and dns hashes */
48struct Curl_multi *Curl_multi_handle(int hashsize, int chashsize,
49 int dnssize);
50
51/* the write bits start at bit 16 for the *getsock() bitmap */
52#define GETSOCK_WRITEBITSTART 16
53
54#define GETSOCK_BLANK 0 /* no bits set */
55
56/* set the bit for the given sock number to make the bitmap for writable */
57#define GETSOCK_WRITESOCK(x) (1 << (GETSOCK_WRITEBITSTART + (x)))
58
59/* set the bit for the given sock number to make the bitmap for readable */
60#define GETSOCK_READSOCK(x) (1 << (x))
61
62/* mask for checking if read and/or write is set for index x */
63#define GETSOCK_MASK_RW(x) (GETSOCK_READSOCK(x)|GETSOCK_WRITESOCK(x))
64
65/* Return the value of the CURLMOPT_MAX_HOST_CONNECTIONS option */
66size_t Curl_multi_max_host_connections(struct Curl_multi *multi);
67
68/* Return the value of the CURLMOPT_MAX_TOTAL_CONNECTIONS option */
69size_t Curl_multi_max_total_connections(struct Curl_multi *multi);
70
71void Curl_multiuse_state(struct Curl_easy *data,
72 int bundlestate); /* use BUNDLE_* defines */
73
74/*
75 * Curl_multi_closed()
76 *
77 * Used by the connect code to tell the multi_socket code that one of the
78 * sockets we were using is about to be closed. This function will then
79 * remove it from the sockethash for this handle to make the multi_socket API
80 * behave properly, especially for the case when libcurl will create another
81 * socket again and it gets the same file descriptor number.
82 */
83
84void Curl_multi_closed(struct Curl_easy *data, curl_socket_t s);
85
86/*
87 * Add a handle and move it into PERFORM state at once. For pushed streams.
88 */
89CURLMcode Curl_multi_add_perform(struct Curl_multi *multi,
90 struct Curl_easy *data,
91 struct connectdata *conn);
92
93
94/* Return the value of the CURLMOPT_MAX_CONCURRENT_STREAMS option */
95unsigned int Curl_multi_max_concurrent_streams(struct Curl_multi *multi);
96
97#endif /* HEADER_CURL_MULTIIF_H */
98