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curl/tests/libtest/lib1564.c
Gergely Nagy f3c35e371c
multi: add curl_multi_wakeup()
This commit adds curl_multi_wakeup() which was previously in the TODO
list under the curl_multi_unblock name.

On some platforms and with some configurations this feature might not be
available or can fail, in these cases a new error code
(CURLM_WAKEUP_FAILURE) is returned from curl_multi_wakeup().

Fixes #4418
Closes #4608
2019-11-25 15:45:56 +01:00

143 lines
3.9 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, 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"
#define TEST_HANG_TIMEOUT 60 * 1000
#define WAKEUP_NUM 1234567
int test(char *URL)
{
CURLM *multi = NULL;
int numfds;
int i;
int res = 0;
struct timeval time_before_wait, time_after_wait;
(void)URL;
start_test_timing();
global_init(CURL_GLOBAL_ALL);
multi_init(multi);
/* no wakeup */
time_before_wait = tutil_tvnow();
multi_poll(multi, NULL, 0, 1000, &numfds);
time_after_wait = tutil_tvnow();
if(tutil_tvdiff(time_after_wait, time_before_wait) < 500) {
fprintf(stderr, "%s:%d curl_multi_poll returned too early\n",
__FILE__, __LINE__);
res = TEST_ERR_MAJOR_BAD;
goto test_cleanup;
}
abort_on_test_timeout();
/* try a single wakeup */
multi_wakeup(multi);
time_before_wait = tutil_tvnow();
multi_poll(multi, NULL, 0, 1000, &numfds);
time_after_wait = tutil_tvnow();
if(tutil_tvdiff(time_after_wait, time_before_wait) > 500) {
fprintf(stderr, "%s:%d curl_multi_poll returned too late\n",
__FILE__, __LINE__);
res = TEST_ERR_MAJOR_BAD;
goto test_cleanup;
}
abort_on_test_timeout();
/* previous wakeup should not wake up this */
time_before_wait = tutil_tvnow();
multi_poll(multi, NULL, 0, 1000, &numfds);
time_after_wait = tutil_tvnow();
if(tutil_tvdiff(time_after_wait, time_before_wait) < 500) {
fprintf(stderr, "%s:%d curl_multi_poll returned too early\n",
__FILE__, __LINE__);
res = TEST_ERR_MAJOR_BAD;
goto test_cleanup;
}
abort_on_test_timeout();
/* try lots of wakeup */
for(i = 0; i < WAKEUP_NUM; ++i)
multi_wakeup(multi);
time_before_wait = tutil_tvnow();
multi_poll(multi, NULL, 0, 1000, &numfds);
time_after_wait = tutil_tvnow();
if(tutil_tvdiff(time_after_wait, time_before_wait) > 500) {
fprintf(stderr, "%s:%d curl_multi_poll returned too late\n",
__FILE__, __LINE__);
res = TEST_ERR_MAJOR_BAD;
goto test_cleanup;
}
abort_on_test_timeout();
#if !defined(WIN32) && !defined(_WIN32) && !defined(__WIN32__) \
&& !defined(__CYGWIN__)
/* Even lots of previous wakeups should not wake up this.
On Windows (particularly when using MinGW), the socketpair
used for curl_multi_wakeup() is really asynchronous,
meaning when it's called a lot, it can take some time
before all of the data can be read. Sometimes it can wake
up more than one curl_multi_poll() call. */
time_before_wait = tutil_tvnow();
multi_poll(multi, NULL, 0, 1000, &numfds);
time_after_wait = tutil_tvnow();
if(tutil_tvdiff(time_after_wait, time_before_wait) < 500) {
fprintf(stderr, "%s:%d curl_multi_poll returned too early\n",
__FILE__, __LINE__);
res = TEST_ERR_MAJOR_BAD;
goto test_cleanup;
}
abort_on_test_timeout();
#endif
test_cleanup:
curl_multi_cleanup(multi);
curl_global_cleanup();
return res;
}