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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@haxx.se>, et al.
11  * Copyright (C) 2012 - 2014, Linus Nielsen Feltzing, <linus@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