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    1: #ifndef HEADER_CURL_MULTIIF_H
    2: #define HEADER_CURL_MULTIIF_H
    3: /***************************************************************************
    4:  *                                  _   _ ____  _
    5:  *  Project                     ___| | | |  _ \| |
    6:  *                             / __| | | | |_) | |
    7:  *                            | (__| |_| |  _ <| |___
    8:  *                             \___|\___/|_| \_\_____|
    9:  *
   10:  * Copyright (C) 1998 - 2020, 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.haxx.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: bool Curl_multiplex_wanted(const struct Curl_multi *multi);
   37: void Curl_set_in_callback(struct Curl_easy *data, bool value);
   38: bool Curl_is_in_callback(struct Curl_easy *easy);
   39: 
   40: /* Internal version of curl_multi_init() accepts size parameters for the
   41:    socket and connection hashes */
   42: struct Curl_multi *Curl_multi_handle(int hashsize, int chashsize);
   43: 
   44: /* the write bits start at bit 16 for the *getsock() bitmap */
   45: #define GETSOCK_WRITEBITSTART 16
   46: 
   47: #define GETSOCK_BLANK 0 /* no bits set */
   48: 
   49: /* set the bit for the given sock number to make the bitmap for writable */
   50: #define GETSOCK_WRITESOCK(x) (1 << (GETSOCK_WRITEBITSTART + (x)))
   51: 
   52: /* set the bit for the given sock number to make the bitmap for readable */
   53: #define GETSOCK_READSOCK(x) (1 << (x))
   54: 
   55: #ifdef DEBUGBUILD
   56:  /*
   57:   * Curl_multi_dump is not a stable public function, this is only meant to
   58:   * allow easier tracking of the internal handle's state and what sockets
   59:   * they use. Only for research and development DEBUGBUILD enabled builds.
   60:   */
   61: void Curl_multi_dump(struct Curl_multi *multi);
   62: #endif
   63: 
   64: /* Return the value of the CURLMOPT_MAX_HOST_CONNECTIONS option */
   65: size_t Curl_multi_max_host_connections(struct Curl_multi *multi);
   66: 
   67: /* Return the value of the CURLMOPT_MAX_TOTAL_CONNECTIONS option */
   68: size_t Curl_multi_max_total_connections(struct Curl_multi *multi);
   69: 
   70: void Curl_multiuse_state(struct connectdata *conn,
   71:                          int bundlestate); /* use BUNDLE_* defines */
   72: 
   73: /*
   74:  * Curl_multi_closed()
   75:  *
   76:  * Used by the connect code to tell the multi_socket code that one of the
   77:  * sockets we were using is about to be closed.  This function will then
   78:  * remove it from the sockethash for this handle to make the multi_socket API
   79:  * behave properly, especially for the case when libcurl will create another
   80:  * socket again and it gets the same file descriptor number.
   81:  */
   82: 
   83: void Curl_multi_closed(struct Curl_easy *data, curl_socket_t s);
   84: 
   85: /*
   86:  * Add a handle and move it into PERFORM state at once. For pushed streams.
   87:  */
   88: CURLMcode Curl_multi_add_perform(struct Curl_multi *multi,
   89:                                  struct Curl_easy *data,
   90:                                  struct connectdata *conn);
   91: 
   92: 
   93: /* Return the value of the CURLMOPT_MAX_CONCURRENT_STREAMS option */
   94: unsigned int Curl_multi_max_concurrent_streams(struct Curl_multi *multi);
   95: 
   96: #endif /* HEADER_CURL_MULTIIF_H */