diff options
Diffstat (limited to 'libcurl/src/lib/share.c')
| -rw-r--r-- | libcurl/src/lib/share.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/libcurl/src/lib/share.c b/libcurl/src/lib/share.c new file mode 100644 index 0000000..ee04521 --- /dev/null +++ b/libcurl/src/lib/share.c @@ -0,0 +1,253 @@ +/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#include "curl_setup.h"
+
+#include <curl/curl.h>
+#include "urldata.h"
+#include "share.h"
+#include "vtls/vtls.h"
+#include "curl_memory.h"
+
+/* The last #include file should be: */
+#include "memdebug.h"
+
+CURLSH *
+curl_share_init(void)
+{
+ struct Curl_share *share = calloc(1, sizeof(struct Curl_share));
+ if(share)
+ share->specifier |= (1<<CURL_LOCK_DATA_SHARE);
+
+ return share;
+}
+
+//#undef curl_share_setopt
+CURLSHcode
+curl_share_setopt(CURLSH *sh, CURLSHoption option, ...)
+{
+ struct Curl_share *share = (struct Curl_share *)sh;
+ va_list param;
+ int type;
+ curl_lock_function lockfunc;
+ curl_unlock_function unlockfunc;
+ void *ptr;
+ CURLSHcode res = CURLSHE_OK;
+
+ if(share->dirty)
+ /* don't allow setting options while one or more handles are already
+ using this share */
+ return CURLSHE_IN_USE;
+
+ va_start(param, option);
+
+ switch(option) {
+ case CURLSHOPT_SHARE:
+ /* this is a type this share will share */
+ type = va_arg(param, int);
+ share->specifier |= (1<<type);
+ switch( type ) {
+ case CURL_LOCK_DATA_DNS:
+ if(!share->hostcache) {
+ share->hostcache = Curl_mk_dnscache();
+ if(!share->hostcache)
+ res = CURLSHE_NOMEM;
+ }
+ break;
+
+ case CURL_LOCK_DATA_COOKIE:
+#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
+ if(!share->cookies) {
+ share->cookies = Curl_cookie_init(NULL, NULL, NULL, TRUE );
+ if(!share->cookies)
+ res = CURLSHE_NOMEM;
+ }
+#else /* CURL_DISABLE_HTTP */
+ res = CURLSHE_NOT_BUILT_IN;
+#endif
+ break;
+
+ case CURL_LOCK_DATA_SSL_SESSION:
+#ifdef USE_SSL
+ if(!share->sslsession) {
+ share->max_ssl_sessions = 8;
+ share->sslsession = calloc(share->max_ssl_sessions,
+ sizeof(struct curl_ssl_session));
+ share->sessionage = 0;
+ if(!share->sslsession)
+ res = CURLSHE_NOMEM;
+ }
+#else
+ res = CURLSHE_NOT_BUILT_IN;
+#endif
+ break;
+
+ case CURL_LOCK_DATA_CONNECT: /* not supported (yet) */
+ break;
+
+ default:
+ res = CURLSHE_BAD_OPTION;
+ }
+ break;
+
+ case CURLSHOPT_UNSHARE:
+ /* this is a type this share will no longer share */
+ type = va_arg(param, int);
+ share->specifier &= ~(1<<type);
+ switch( type ) {
+ case CURL_LOCK_DATA_DNS:
+ if(share->hostcache) {
+ Curl_hash_destroy(share->hostcache);
+ share->hostcache = NULL;
+ }
+ break;
+
+ case CURL_LOCK_DATA_COOKIE:
+#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
+ if(share->cookies) {
+ Curl_cookie_cleanup(share->cookies);
+ share->cookies = NULL;
+ }
+#else /* CURL_DISABLE_HTTP */
+ res = CURLSHE_NOT_BUILT_IN;
+#endif
+ break;
+
+ case CURL_LOCK_DATA_SSL_SESSION:
+#ifdef USE_SSL
+ Curl_safefree(share->sslsession);
+#else
+ res = CURLSHE_NOT_BUILT_IN;
+#endif
+ break;
+
+ case CURL_LOCK_DATA_CONNECT:
+ break;
+
+ default:
+ res = CURLSHE_BAD_OPTION;
+ break;
+ }
+ break;
+
+ case CURLSHOPT_LOCKFUNC:
+ lockfunc = va_arg(param, curl_lock_function);
+ share->lockfunc = lockfunc;
+ break;
+
+ case CURLSHOPT_UNLOCKFUNC:
+ unlockfunc = va_arg(param, curl_unlock_function);
+ share->unlockfunc = unlockfunc;
+ break;
+
+ case CURLSHOPT_USERDATA:
+ ptr = va_arg(param, void *);
+ share->clientdata = ptr;
+ break;
+
+ default:
+ res = CURLSHE_BAD_OPTION;
+ break;
+ }
+
+ va_end(param);
+
+ return res;
+}
+
+CURLSHcode
+curl_share_cleanup(CURLSH *sh)
+{
+ struct Curl_share *share = (struct Curl_share *)sh;
+
+ if(share == NULL)
+ return CURLSHE_INVALID;
+
+ if(share->lockfunc)
+ share->lockfunc(NULL, CURL_LOCK_DATA_SHARE, CURL_LOCK_ACCESS_SINGLE,
+ share->clientdata);
+
+ if(share->dirty) {
+ if(share->unlockfunc)
+ share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
+ return CURLSHE_IN_USE;
+ }
+
+ if(share->hostcache) {
+ Curl_hash_destroy(share->hostcache);
+ share->hostcache = NULL;
+ }
+
+#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_COOKIES)
+ Curl_cookie_cleanup(share->cookies);
+#endif
+
+#ifdef USE_SSL
+ if(share->sslsession) {
+ size_t i;
+ for(i = 0; i < share->max_ssl_sessions; i++)
+ Curl_ssl_kill_session(&(share->sslsession[i]));
+ free(share->sslsession);
+ }
+#endif
+
+ if(share->unlockfunc)
+ share->unlockfunc(NULL, CURL_LOCK_DATA_SHARE, share->clientdata);
+ free(share);
+
+ return CURLSHE_OK;
+}
+
+
+CURL_STATIC CURLSHcode
+Curl_share_lock(struct SessionHandle *data, curl_lock_data type,
+ curl_lock_access accesstype)
+{
+ struct Curl_share *share = data->share;
+
+ if(share == NULL)
+ return CURLSHE_INVALID;
+
+ if(share->specifier & (1<<type)) {
+ if(share->lockfunc) /* only call this if set! */
+ share->lockfunc(data, type, accesstype, share->clientdata);
+ }
+ /* else if we don't share this, pretend successful lock */
+
+ return CURLSHE_OK;
+}
+
+CURL_STATIC CURLSHcode
+Curl_share_unlock(struct SessionHandle *data, curl_lock_data type)
+{
+ struct Curl_share *share = data->share;
+
+ if(share == NULL)
+ return CURLSHE_INVALID;
+
+ if(share->specifier & (1<<type)) {
+ if(share->unlockfunc) /* only call this if set! */
+ share->unlockfunc (data, type, share->clientdata);
+ }
+
+ return CURLSHE_OK;
+}
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