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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2017, 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 https://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.
*
***************************************************************************/
/* <DESC>
* Connection cache shared between easy handles with the share interface
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
static void my_lock(CURL *handle, curl_lock_data data,
curl_lock_access laccess, void *useptr)
{
(void)handle;
(void)data;
(void)laccess;
(void)useptr;
fprintf(stderr, "-> Mutex lock\n");
}
static void my_unlock(CURL *handle, curl_lock_data data, void *useptr)
{
(void)handle;
(void)data;
(void)useptr;
fprintf(stderr, "<- Mutex unlock\n");
}
int main(void)
{
CURLSH *share;
int i;
share = curl_share_init();
curl_share_setopt(share, CURLSHOPT_SHARE, CURL_LOCK_DATA_CONNECT);
curl_share_setopt(share, CURLSHOPT_LOCKFUNC, my_lock);
curl_share_setopt(share, CURLSHOPT_UNLOCKFUNC, my_unlock);
/* Loop the transfer and cleanup the handle properly every lap. This will
still reuse connections since the pool is in the shared object! */
for(i = 0; i < 3; i++) {
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "https://curl.haxx.se/");
/* use the share object */
curl_easy_setopt(curl, CURLOPT_SHARE, share);
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
}
curl_share_cleanup(share);
return 0;
}
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