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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "test.h"
#include "testutil.h"
#include "warnless.h"
#include "memdebug.h"
struct transfer_status {
CURL *easy;
int halted;
int counter; /* count write callback invokes */
int please; /* number of times xferinfo is called while halted */
};
static int please_continue(void *userp,
curl_off_t dltotal,
curl_off_t dlnow,
curl_off_t ultotal,
curl_off_t ulnow)
{
struct transfer_status *st = (struct transfer_status *)userp;
(void)dltotal;
(void)dlnow;
(void)ultotal;
(void)ulnow;
if(st->halted) {
st->please++;
if(st->please == 2) {
/* waited enough, unpause! */
curl_easy_pause(st->easy, CURLPAUSE_CONT);
}
}
fprintf(stderr, "xferinfo: paused %d\n", st->halted);
return 0; /* go on */
}
static size_t header_callback(void *ptr, size_t size, size_t nmemb,
void *userp)
{
size_t len = size * nmemb;
(void)userp;
(void)fwrite(ptr, size, nmemb, stdout);
return len;
}
static size_t write_callback(void *ptr, size_t size, size_t nmemb, void *userp)
{
struct transfer_status *st = (struct transfer_status *)userp;
size_t len = size * nmemb;
st->counter++;
if(st->counter > 1) {
/* the first call puts us on pause, so subsequent calls are after
unpause */
fwrite(ptr, size, nmemb, stdout);
return len;
}
printf("Got %d bytes but pausing!\n", (int)len);
st->halted = 1;
return CURL_WRITEFUNC_PAUSE;
}
int test(char *URL)
{
CURL *curls = NULL;
int i = 0;
int res = 0;
struct transfer_status st;
start_test_timing();
memset(&st, 0, sizeof(st));
global_init(CURL_GLOBAL_ALL);
easy_init(curls);
st.easy = curls; /* to allow callbacks access */
easy_setopt(curls, CURLOPT_URL, URL);
easy_setopt(curls, CURLOPT_WRITEFUNCTION, write_callback);
easy_setopt(curls, CURLOPT_WRITEDATA, &st);
easy_setopt(curls, CURLOPT_HEADERFUNCTION, header_callback);
easy_setopt(curls, CURLOPT_HEADERDATA, &st);
easy_setopt(curls, CURLOPT_XFERINFOFUNCTION, please_continue);
easy_setopt(curls, CURLOPT_XFERINFODATA, &st);
easy_setopt(curls, CURLOPT_NOPROGRESS, 0L);
res = curl_easy_perform(curls);
test_cleanup:
curl_easy_cleanup(curls);
curl_global_cleanup();
if(res)
i = res;
return i; /* return the final return code */
}
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