1 #ifndef HEADER_CURL_MULTIIF_H 2 #define HEADER_CURL_MULTIIF_H 3 /*************************************************************************** 4 * _ _ ____ _ 5 * Project ___| | | | _ \| | 6 * / __| | | | |_) | | 7 * | (__| |_| | _ <| |___ 8 * \___|\___/|_| \_\_____| 9 * 10 * Copyright (C) 1998 - 2021, 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 ***************************************************************************/ 24 25 /* 26 * Prototypes for library-wide functions provided by multi.c 27 */ 28 29 void Curl_updatesocket(struct Curl_easy *data); 30 void Curl_expire(struct Curl_easy *data, timediff_t milli, expire_id); 31 void Curl_expire_clear(struct Curl_easy *data); 32 void Curl_expire_done(struct Curl_easy *data, expire_id id); 33 void Curl_update_timer(struct Curl_multi *multi); 34 void Curl_attach_connnection(struct Curl_easy *data, 35 struct connectdata *conn); 36 void Curl_detach_connnection(struct Curl_easy *data); 37 bool Curl_multiplex_wanted(const struct Curl_multi *multi); 38 void Curl_set_in_callback(struct Curl_easy *data, bool value); 39 bool Curl_is_in_callback(struct Curl_easy *easy); 40 CURLcode Curl_preconnect(struct Curl_easy *data); 41 42 /* Internal version of curl_multi_init() accepts size parameters for the 43 socket and connection hashes */ 44 struct Curl_multi *Curl_multi_handle(int hashsize, int chashsize); 45 46 /* the write bits start at bit 16 for the *getsock() bitmap */ 47 #define GETSOCK_WRITEBITSTART 16 48 49 #define GETSOCK_BLANK 0 /* no bits set */ 50 51 /* set the bit for the given sock number to make the bitmap for writable */ 52 #define GETSOCK_WRITESOCK(x) (1 << (GETSOCK_WRITEBITSTART + (x))) 53 54 /* set the bit for the given sock number to make the bitmap for readable */ 55 #define GETSOCK_READSOCK(x) (1 << (x)) 56 57 #ifdef DEBUGBUILD 58 /* 59 * Curl_multi_dump is not a stable public function, this is only meant to 60 * allow easier tracking of the internal handle's state and what sockets 61 * they use. Only for research and development DEBUGBUILD enabled builds. 62 */ 63 void Curl_multi_dump(struct Curl_multi *multi); 64 #endif 65 66 /* Return the value of the CURLMOPT_MAX_HOST_CONNECTIONS option */ 67 size_t Curl_multi_max_host_connections(struct Curl_multi *multi); 68 69 /* Return the value of the CURLMOPT_MAX_TOTAL_CONNECTIONS option */ 70 size_t Curl_multi_max_total_connections(struct Curl_multi *multi); 71 72 void Curl_multiuse_state(struct Curl_easy *data, 73 int bundlestate); /* use BUNDLE_* defines */ 74 75 /* 76 * Curl_multi_closed() 77 * 78 * Used by the connect code to tell the multi_socket code that one of the 79 * sockets we were using is about to be closed. This function will then 80 * remove it from the sockethash for this handle to make the multi_socket API 81 * behave properly, especially for the case when libcurl will create another 82 * socket again and it gets the same file descriptor number. 83 */ 84 85 void Curl_multi_closed(struct Curl_easy *data, curl_socket_t s); 86 87 /* 88 * Add a handle and move it into PERFORM state at once. For pushed streams. 89 */ 90 CURLMcode Curl_multi_add_perform(struct Curl_multi *multi, 91 struct Curl_easy *data, 92 struct connectdata *conn); 93 94 95 /* Return the value of the CURLMOPT_MAX_CONCURRENT_STREAMS option */ 96 unsigned int Curl_multi_max_concurrent_streams(struct Curl_multi *multi); 97 98 #endif /* HEADER_CURL_MULTIIF_H */ 99