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