1 /***************************************************************************
3 * Project ___| | | | _ \| |
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8 * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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16 * furnished to do so, under the terms of the COPYING file.
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21 ***************************************************************************/
23 * A multi-threaded example that uses pthreads to fetch several files at once
29 #include <curl/curl.h>
34 List of URLs to fetch.
36 If you intend to use a SSL-based protocol here you might need to setup TLS
37 library mutex callbacks as described here:
39 https://curl.haxx.se/libcurl/c/threadsafe.html
42 const char * const urls[NUMT]= {
43 "https://curl.haxx.se/",
44 "ftp://cool.haxx.se/",
45 "http://www.contactor.se/",
49 static void *pull_one_url(void *url)
53 curl = curl_easy_init();
54 curl_easy_setopt(curl, CURLOPT_URL, url);
55 curl_easy_perform(curl); /* ignores error */
56 curl_easy_cleanup(curl);
63 int pthread_create(pthread_t *new_thread_ID,
64 const pthread_attr_t *attr,
65 void * (*start_func)(void *), void *arg);
68 int main(int argc, char **argv)
74 /* Must initialize libcurl before any threads are started */
75 curl_global_init(CURL_GLOBAL_ALL);
77 for(i=0; i< NUMT; i++) {
78 error = pthread_create(&tid[i],
79 NULL, /* default attributes please */
83 fprintf(stderr, "Couldn't run thread number %d, errno %d\n", i, error);
85 fprintf(stderr, "Thread %d, gets %s\n", i, urls[i]);
88 /* now wait for all threads to terminate */
89 for(i=0; i< NUMT; i++) {
90 error = pthread_join(tid[i], NULL);
91 fprintf(stderr, "Thread %d terminated\n", i);