source: UsbWattMeter/trunk/curl-7.47.1/lib/share.c@ 164

Last change on this file since 164 was 164, checked in by coas-nagasima, 6 years ago

TOPPERS/ECNLサンプルアプリ「USB充電器電力計」を追加

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
  • Property svn:mime-type set to text/x-csrc
File size: 5.9 KB
Line 
1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22
23#include "curl_setup.h"
24
25#include <curl/curl.h>
26#include "urldata.h"
27#include "share.h"
28#include "vtls/vtls.h"
29#include "curl_memory.h"
30
31/* The last #include file should be: */
32#include "memdebug.h"
33
34CURLSH *
35curl_share_init(void)
36{
37 struct Curl_share *share = calloc(1, sizeof(struct Curl_share));
38 if(share) {
39 share->specifier |= (1<<CURL_LOCK_DATA_SHARE);
40
41 if(Curl_mk_dnscache(&share->hostcache)) {
42 free(share);
43 return NULL;
44 }
45 }
46
47 return share;
48}
49
50#undef curl_share_setopt
51CURLSHcode
52curl_share_setopt(CURLSH *sh, CURLSHoption option, ...)
53{
54 struct Curl_share *share = (struct Curl_share *)sh;
55 va_list param;
56 int type;
57 curl_lock_function lockfunc;
58 curl_unlock_function unlockfunc;
59 void *ptr;
60 CURLSHcode res = CURLSHE_OK;
61
62 if(share->dirty)
63 /* don't allow setting options while one or more handles are already
64 using this share */
65 return CURLSHE_IN_USE;
66
67 va_start(param, option);
68
69 switch(option) {
70 case CURLSHOPT_SHARE:
71 /* this is a type this share will share */
72 type = va_arg(param, int);
73 share->specifier |= (1<<type);
74 switch( type ) {
75 case CURL_LOCK_DATA_DNS:
76 break;
77
78 case CURL_LOCK_DATA_COOKIE:
79#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
80 if(!share->cookies) {
81 share->cookies = Curl_cookie_init(NULL, NULL, NULL, TRUE );
82 if(!share->cookies)
83 res = CURLSHE_NOMEM;
84 }
85#else /* CURL_DISABLE_HTTP */
86 res = CURLSHE_NOT_BUILT_IN;
87#endif
88 break;
89
90 case CURL_LOCK_DATA_SSL_SESSION:
91#ifdef USE_SSL
92 if(!share->sslsession) {
93 share->max_ssl_sessions = 8;
94 share->sslsession = calloc(share->max_ssl_sessions,
95 sizeof(struct curl_ssl_session));
96 share->sessionage = 0;
97 if(!share->sslsession)
98 res = CURLSHE_NOMEM;
99 }
100#else
101 res = CURLSHE_NOT_BUILT_IN;
102#endif
103 break;
104
105 case CURL_LOCK_DATA_CONNECT: /* not supported (yet) */
106 break;
107
108 default:
109 res = CURLSHE_BAD_OPTION;
110 }
111 break;
112
113 case CURLSHOPT_UNSHARE:
114 /* this is a type this share will no longer share */
115 type = va_arg(param, int);
116 share->specifier &= ~(1<<type);
117 switch( type ) {
118 case CURL_LOCK_DATA_DNS:
119 break;
120
121 case CURL_LOCK_DATA_COOKIE:
122#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
123 if(share->cookies) {
124 Curl_cookie_cleanup(share->cookies);
125 share->cookies = NULL;
126 }
127#else /* CURL_DISABLE_HTTP */
128 res = CURLSHE_NOT_BUILT_IN;
129#endif
130 break;
131
132 case CURL_LOCK_DATA_SSL_SESSION:
133#ifdef USE_SSL
134 Curl_safefree(share->sslsession);
135#else
136 res = CURLSHE_NOT_BUILT_IN;
137#endif
138 break;
139
140 case CURL_LOCK_DATA_CONNECT:
141 break;
142
143 default:
144 res = CURLSHE_BAD_OPTION;
145 break;
146 }
147 break;
148
149 case CURLSHOPT_LOCKFUNC:
150 lockfunc = va_arg(param, curl_lock_function);
151 share->lockfunc = lockfunc;
152 break;
153
154 case CURLSHOPT_UNLOCKFUNC:
155 unlockfunc = va_arg(param, curl_unlock_function);
156 share->unlockfunc = unlockfunc;
157 break;
158
159 case CURLSHOPT_USERDATA:
160 ptr = va_arg(param, void *);
161 share->clientdata = ptr;
162 break;
163
164 default:
165 res = CURLSHE_BAD_OPTION;
166 break;
167 }
168
169 va_end(param);
170
171 return res;
172}
173
174CURLSHcode
175curl_share_cleanup(CURLSH *sh)
176{
177 struct Curl_share *share = (struct Curl_share *)sh;
178
179 if(share == NULL)
180 return CURLSHE_INVALID;
181
182 if(share->lockfunc)
183 share->lockfunc(NULL, CURL_LOCK_DATA_SHARE, CURL_LOCK_ACCESS_SINGLE,
184 share->clientdata);
185
186 if(share->dirty) {
187 if(share->unlockfunc)
188 share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
189 return CURLSHE_IN_USE;
190 }
191
192 Curl_hash_destroy(&share->hostcache);
193
194#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
195 Curl_cookie_cleanup(share->cookies);
196#endif
197
198#ifdef USE_SSL
199 if(share->sslsession) {
200 size_t i;
201 for(i = 0; i < share->max_ssl_sessions; i++)
202 Curl_ssl_kill_session(&(share->sslsession[i]));
203 free(share->sslsession);
204 }
205#endif
206
207 if(share->unlockfunc)
208 share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
209 free(share);
210
211 return CURLSHE_OK;
212}
213
214
215CURLSHcode
216Curl_share_lock(struct SessionHandle *data, curl_lock_data type,
217 curl_lock_access accesstype)
218{
219 struct Curl_share *share = data->share;
220
221 if(share == NULL)
222 return CURLSHE_INVALID;
223
224 if(share->specifier & (1<<type)) {
225 if(share->lockfunc) /* only call this if set! */
226 share->lockfunc(data, type, accesstype, share->clientdata);
227 }
228 /* else if we don't share this, pretend successful lock */
229
230 return CURLSHE_OK;
231}
232
233CURLSHcode
234Curl_share_unlock(struct SessionHandle *data, curl_lock_data type)
235{
236 struct Curl_share *share = data->share;
237
238 if(share == NULL)
239 return CURLSHE_INVALID;
240
241 if(share->specifier & (1<<type)) {
242 if(share->unlockfunc) /* only call this if set! */
243 share->unlockfunc (data, type, share->clientdata);
244 }
245
246 return CURLSHE_OK;
247}
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