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Annotation of embedaddon/curl/tests/libtest/lib1541.c, revision 1.1.1.1

1.1       misho       1: /***************************************************************************
                      2:  *                                  _   _ ____  _
                      3:  *  Project                     ___| | | |  _ \| |
                      4:  *                             / __| | | | |_) | |
                      5:  *                            | (__| |_| |  _ <| |___
                      6:  *                             \___|\___/|_| \_\_____|
                      7:  *
                      8:  * Copyright (C) 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
                      9:  *
                     10:  * This software is licensed as described in the file COPYING, which
                     11:  * you should have received as part of this distribution. The terms
                     12:  * are also available at https://curl.haxx.se/docs/copyright.html.
                     13:  *
                     14:  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
                     15:  * copies of the Software, and permit persons to whom the Software is
                     16:  * furnished to do so, under the terms of the COPYING file.
                     17:  *
                     18:  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
                     19:  * KIND, either express or implied.
                     20:  *
                     21:  ***************************************************************************/
                     22: #include "test.h"
                     23: 
                     24: #include "testutil.h"
                     25: #include "warnless.h"
                     26: #include "memdebug.h"
                     27: 
                     28: #ifdef HAVE_PTHREAD_H
                     29: #include <pthread.h>
                     30: #include <time.h>
                     31: 
                     32: /* number of threads to fire up in parallel */
                     33: #define NUM_THREADS 67
                     34: 
                     35: /* for how many seconds each thread will loop */
                     36: #define RUN_FOR_SECONDS 7
                     37: 
                     38: static pthread_mutex_t connlock;
                     39: 
                     40: static size_t write_db(void *ptr, size_t size, size_t nmemb, void *data)
                     41: {
                     42:   /* not interested in the downloaded bytes, return the size */
                     43:   (void)ptr;  /* unused */
                     44:   (void)data; /* unused */
                     45:   return (size_t)(size * nmemb);
                     46: }
                     47: 
                     48: static void lock_cb(CURL *handle, curl_lock_data data,
                     49:                     curl_lock_access access, void *userptr)
                     50: {
                     51:   (void)access; /* unused */
                     52:   (void)userptr; /* unused */
                     53:   (void)handle; /* unused */
                     54:   (void)data; /* unused */
                     55:   pthread_mutex_lock(&connlock);
                     56: }
                     57: 
                     58: static void unlock_cb(CURL *handle, curl_lock_data data,
                     59:                       void *userptr)
                     60: {
                     61:   (void)userptr; /* unused */
                     62:   (void)handle;  /* unused */
                     63:   (void)data;    /* unused */
                     64:   pthread_mutex_unlock(&connlock);
                     65: }
                     66: 
                     67: static void init_locks(void)
                     68: {
                     69:   pthread_mutex_init(&connlock, NULL);
                     70: }
                     71: 
                     72: static void kill_locks(void)
                     73: {
                     74:   pthread_mutex_destroy(&connlock);
                     75: }
                     76: 
                     77: struct initurl {
                     78:   const char *url;
                     79:   CURLSH *share;
                     80:   int threadno;
                     81: };
                     82: 
                     83: static void *run_thread(void *ptr)
                     84: {
                     85:   struct initurl *u = (struct initurl *)ptr;
                     86:   int i;
                     87:   time_t end = time(NULL) + RUN_FOR_SECONDS;
                     88: 
                     89:   for(i = 0; time(NULL) < end; i++) {
                     90:     CURL *curl = curl_easy_init();
                     91:     curl_easy_setopt(curl, CURLOPT_URL, u->url);
                     92:     curl_easy_setopt(curl, CURLOPT_VERBOSE, 0L);
                     93:     curl_easy_setopt(curl, CURLOPT_SHARE, u->share);
                     94:     curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_db);
                     95:     curl_easy_perform(curl); /* ignores error */
                     96:     curl_easy_cleanup(curl);
                     97:     fprintf(stderr, "Thread %d transfer %d\n", u->threadno, i);
                     98:   }
                     99: 
                    100:   return NULL;
                    101: }
                    102: 
                    103: int test(char *URL)
                    104: {
                    105:   pthread_t tid[NUM_THREADS];
                    106:   int i;
                    107:   CURLSH *share;
                    108:   struct initurl url[NUM_THREADS];
                    109: 
                    110:   /* Must initialize libcurl before any threads are started */
                    111:   curl_global_init(CURL_GLOBAL_ALL);
                    112: 
                    113:   share = curl_share_init();
                    114:   curl_share_setopt(share, CURLSHOPT_LOCKFUNC, lock_cb);
                    115:   curl_share_setopt(share, CURLSHOPT_UNLOCKFUNC, unlock_cb);
                    116:   curl_share_setopt(share, CURLSHOPT_SHARE, CURL_LOCK_DATA_CONNECT);
                    117: 
                    118:   init_locks();
                    119: 
                    120:   for(i = 0; i< NUM_THREADS; i++) {
                    121:     int error;
                    122:     url[i].url = URL;
                    123:     url[i].share = share;
                    124:     url[i].threadno = i;
                    125:     error = pthread_create(&tid[i], NULL, run_thread, &url[i]);
                    126:     if(0 != error)
                    127:       fprintf(stderr, "Couldn't run thread number %d, errno %d\n", i, error);
                    128:     else
                    129:       fprintf(stderr, "Thread %d, gets %s\n", i, URL);
                    130:   }
                    131: 
                    132:   /* now wait for all threads to terminate */
                    133:   for(i = 0; i< NUM_THREADS; i++) {
                    134:     pthread_join(tid[i], NULL);
                    135:     fprintf(stderr, "Thread %d terminated\n", i);
                    136:   }
                    137: 
                    138:   kill_locks();
                    139: 
                    140:   curl_share_cleanup(share);
                    141:   curl_global_cleanup();
                    142:   return 0;
                    143: }
                    144: 
                    145: #else /* without pthread, this test doesn't work */
                    146: int test(char *URL)
                    147: {
                    148:   (void)URL;
                    149:   return 0;
                    150: }
                    151: #endif