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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>
- * A multi-threaded example that uses pthreads to fetch several files at once
- * </DESC>
- */
- #include <stdio.h>
- #include <pthread.h>
- #include <curl/curl.h>
- #define NUMT 4
- /*
- List of URLs to fetch.
- If you intend to use a SSL-based protocol here you might need to setup TLS
- library mutex callbacks as described here:
- https://curl.haxx.se/libcurl/c/threadsafe.html
- */
- const char * const urls[NUMT]= {
- "https://curl.haxx.se/",
- "ftp://cool.haxx.se/",
- "https://www.cag.se/",
- "www.haxx.se"
- };
- static void *pull_one_url(void *url)
- {
- CURL *curl;
- curl = curl_easy_init();
- curl_easy_setopt(curl, CURLOPT_URL, url);
- curl_easy_perform(curl); /* ignores error */
- curl_easy_cleanup(curl);
- return NULL;
- }
- /*
- int pthread_create(pthread_t *new_thread_ID,
- const pthread_attr_t *attr,
- void * (*start_func)(void *), void *arg);
- */
- int main(int argc, char **argv)
- {
- pthread_t tid[NUMT];
- int i;
- int error;
- /* Must initialize libcurl before any threads are started */
- curl_global_init(CURL_GLOBAL_ALL);
- for(i = 0; i< NUMT; i++) {
- error = pthread_create(&tid[i],
- NULL, /* default attributes please */
- pull_one_url,
- (void *)urls[i]);
- if(0 != error)
- fprintf(stderr, "Couldn't run thread number %d, errno %d\n", i, error);
- else
- fprintf(stderr, "Thread %d, gets %s\n", i, urls[i]);
- }
- /* now wait for all threads to terminate */
- for(i = 0; i< NUMT; i++) {
- error = pthread_join(tid[i], NULL);
- fprintf(stderr, "Thread %d terminated\n", i);
- }
- return 0;
- }
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