threaded-shared-conn.c [plain text]
#include <stdio.h>
#include <pthread.h>
#include <curl/curl.h>
#define URL "http://localhost/4KB"
#define NUM_THREADS 67
#define URL_ITERATIONS 11235
static pthread_mutex_t connlock;
static size_t write_db(void *ptr, size_t size, size_t nmemb, void *data)
{
(void)ptr;
(void)data;
return (size_t)(size * nmemb);
}
static void lock_cb(CURL *handle, curl_lock_data data,
curl_lock_access access, void *userptr)
{
(void)access;
(void)userptr;
(void)handle;
(void)data;
pthread_mutex_lock(&connlock);
}
static void unlock_cb(CURL *handle, curl_lock_data data,
void *userptr)
{
(void)userptr;
(void)handle;
(void)data;
pthread_mutex_unlock(&connlock);
}
static void init_locks(void)
{
pthread_mutex_init(&connlock, NULL);
}
static void kill_locks(void)
{
pthread_mutex_destroy(&connlock);
}
struct initurl {
const char *url;
CURLSH *share;
int threadno;
};
static void *run_thread(void *ptr)
{
struct initurl *u = (struct initurl *)ptr;
int i;
for(i = 0; i < URL_ITERATIONS; i++) {
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, u->url);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 0L);
curl_easy_setopt(curl, CURLOPT_SHARE, u->share);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_db);
curl_easy_perform(curl);
curl_easy_cleanup(curl);
fprintf(stderr, "Thread %d transfer %d\n", u->threadno, i);
}
return NULL;
}
int main(void)
{
pthread_t tid[NUM_THREADS];
int i;
int error;
CURLSH *share;
struct initurl url[NUM_THREADS];
curl_global_init(CURL_GLOBAL_ALL);
share = curl_share_init();
curl_share_setopt(share, CURLSHOPT_LOCKFUNC, lock_cb);
curl_share_setopt(share, CURLSHOPT_UNLOCKFUNC, unlock_cb);
curl_share_setopt(share, CURLSHOPT_SHARE, CURL_LOCK_DATA_CONNECT);
init_locks();
for(i = 0; i< NUM_THREADS; i++) {
url[i].url = URL;
url[i].share = share;
url[i].threadno = i;
error = pthread_create(&tid[i], NULL, run_thread, &url[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, URL);
}
for(i = 0; i< NUM_THREADS; i++) {
error = pthread_join(tid[i], NULL);
fprintf(stderr, "Thread %d terminated\n", i);
}
kill_locks();
curl_share_cleanup(share);
curl_global_cleanup();
return 0;
}