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      1 #ifndef HEADER_CURL_CONNCACHE_H
      2 #define HEADER_CURL_CONNCACHE_H
      3 /***************************************************************************
      4  *                                  _   _ ____  _
      5  *  Project                     ___| | | |  _ \| |
      6  *                             / __| | | | |_) | |
      7  *                            | (__| |_| |  _ <| |___
      8  *                             \___|\___/|_| \_\_____|
      9  *
     10  * Copyright (C) 2015, Daniel Stenberg, <daniel (at) haxx.se>, et al.
     11  * Copyright (C) 2012 - 2014, Linus Nielsen Feltzing, <linus (at) haxx.se>
     12  *
     13  * This software is licensed as described in the file COPYING, which
     14  * you should have received as part of this distribution. The terms
     15  * are also available at https://curl.haxx.se/docs/copyright.html.
     16  *
     17  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     18  * copies of the Software, and permit persons to whom the Software is
     19  * furnished to do so, under the terms of the COPYING file.
     20  *
     21  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     22  * KIND, either express or implied.
     23  *
     24  ***************************************************************************/
     25 
     26 struct conncache {
     27   struct curl_hash hash;
     28   size_t num_connections;
     29   long next_connection_id;
     30   struct timeval last_cleanup;
     31 };
     32 
     33 #define BUNDLE_NO_MULTIUSE -1
     34 #define BUNDLE_UNKNOWN     0  /* initial value */
     35 #define BUNDLE_PIPELINING  1
     36 #define BUNDLE_MULTIPLEX   2
     37 
     38 struct connectbundle {
     39   int multiuse;                 /* supports multi-use */
     40   size_t num_connections;       /* Number of connections in the bundle */
     41   struct curl_llist *conn_list; /* The connectdata members of the bundle */
     42 };
     43 
     44 int Curl_conncache_init(struct conncache *, int size);
     45 
     46 void Curl_conncache_destroy(struct conncache *connc);
     47 
     48 /* return the correct bundle, to a host or a proxy */
     49 struct connectbundle *Curl_conncache_find_bundle(struct connectdata *conn,
     50                                                  struct conncache *connc);
     51 
     52 CURLcode Curl_conncache_add_conn(struct conncache *connc,
     53                                  struct connectdata *conn);
     54 
     55 void Curl_conncache_remove_conn(struct conncache *connc,
     56                                 struct connectdata *conn);
     57 
     58 void Curl_conncache_foreach(struct conncache *connc,
     59                             void *param,
     60                             int (*func)(struct connectdata *conn,
     61                                         void *param));
     62 
     63 struct connectdata *
     64 Curl_conncache_find_first_connection(struct conncache *connc);
     65 
     66 void Curl_conncache_print(struct conncache *connc);
     67 
     68 #endif /* HEADER_CURL_CONNCACHE_H */
     69