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Annotation of embedaddon/curl/tests/libtest/lib1540.c, revision 1.1.1.1

1.1       misho       1: /***************************************************************************
                      2:  *                                  _   _ ____  _
                      3:  *  Project                     ___| | | |  _ \| |
                      4:  *                             / __| | | | |_) | |
                      5:  *                            | (__| |_| |  _ <| |___
                      6:  *                             \___|\___/|_| \_\_____|
                      7:  *
                      8:  * Copyright (C) 1998 - 2020, 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: struct transfer_status {
                     29:   CURL *easy;
                     30:   int halted;
                     31:   int counter; /* count write callback invokes */
                     32:   int please;  /* number of times xferinfo is called while halted */
                     33: };
                     34: 
                     35: static int please_continue(void *userp,
                     36:                            curl_off_t dltotal,
                     37:                            curl_off_t dlnow,
                     38:                            curl_off_t ultotal,
                     39:                            curl_off_t ulnow)
                     40: {
                     41:   struct transfer_status *st = (struct transfer_status *)userp;
                     42:   (void)dltotal;
                     43:   (void)dlnow;
                     44:   (void)ultotal;
                     45:   (void)ulnow;
                     46:   if(st->halted) {
                     47:     st->please++;
                     48:     if(st->please == 2) {
                     49:       /* waited enough, unpause! */
                     50:       curl_easy_pause(st->easy, CURLPAUSE_CONT);
                     51:     }
                     52:   }
                     53:   fprintf(stderr, "xferinfo: paused %d\n", st->halted);
                     54:   return 0; /* go on */
                     55: }
                     56: 
                     57: static size_t header_callback(void *ptr, size_t size, size_t nmemb,
                     58:                               void *userp)
                     59: {
                     60:   size_t len = size * nmemb;
                     61:   (void)userp;
                     62:   (void)fwrite(ptr, size, nmemb, stdout);
                     63:   return len;
                     64: }
                     65: 
                     66: static size_t write_callback(void *ptr, size_t size, size_t nmemb, void *userp)
                     67: {
                     68:   struct transfer_status *st = (struct transfer_status *)userp;
                     69:   size_t len = size * nmemb;
                     70:   st->counter++;
                     71:   if(st->counter > 1) {
                     72:     /* the first call puts us on pause, so subsequent calls are after
                     73:        unpause */
                     74:     fwrite(ptr, size, nmemb, stdout);
                     75:     return len;
                     76:   }
                     77:   printf("Got %d bytes but pausing!\n", (int)len);
                     78:   st->halted = 1;
                     79:   return CURL_WRITEFUNC_PAUSE;
                     80: }
                     81: 
                     82: int test(char *URL)
                     83: {
                     84:   CURL *curls = NULL;
                     85:   int i = 0;
                     86:   int res = 0;
                     87:   struct transfer_status st;
                     88: 
                     89:   start_test_timing();
                     90: 
                     91:   memset(&st, 0, sizeof(st));
                     92: 
                     93:   global_init(CURL_GLOBAL_ALL);
                     94: 
                     95:   easy_init(curls);
                     96:   st.easy = curls; /* to allow callbacks access */
                     97: 
                     98:   easy_setopt(curls, CURLOPT_URL, URL);
                     99:   easy_setopt(curls, CURLOPT_WRITEFUNCTION, write_callback);
                    100:   easy_setopt(curls, CURLOPT_WRITEDATA, &st);
                    101:   easy_setopt(curls, CURLOPT_HEADERFUNCTION, header_callback);
                    102:   easy_setopt(curls, CURLOPT_HEADERDATA, &st);
                    103: 
                    104:   easy_setopt(curls, CURLOPT_XFERINFOFUNCTION, please_continue);
                    105:   easy_setopt(curls, CURLOPT_XFERINFODATA, &st);
                    106:   easy_setopt(curls, CURLOPT_NOPROGRESS, 0L);
                    107: 
                    108:   res = curl_easy_perform(curls);
                    109: 
                    110: test_cleanup:
                    111: 
                    112:   curl_easy_cleanup(curls);
                    113:   curl_global_cleanup();
                    114: 
                    115:   if(res)
                    116:     i = res;
                    117: 
                    118:   return i; /* return the final return code */
                    119: }