mirror of
https://github.com/curl/curl.git
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310 lines
7.8 KiB
C
310 lines
7.8 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Dmitry Karpov <dkarpov1970@gmail.com>
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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/*
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* The purpose of this test is to test behavior of curl_multi_waitfds
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* function in different scenarios:
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* empty multi handle (expected zero descriptors),
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* HTTP1 amd HTTP2 (no multiplexing) two transfers (expected two descriptors),
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* HTTP2 with multiplexing (expected one descriptors)
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*
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* It is also expected that all transfers run by multi-handle should complete
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* successfully.
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*/
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#include "test.h"
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#include "testutil.h"
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#include "warnless.h"
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#include "memdebug.h"
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/* ---------------------------------------------------------------- */
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#define test_check(expected_fds) \
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if(res != CURLE_OK) { \
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fprintf(stderr, "test failed with code: %d\n", res); \
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goto test_cleanup; \
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} \
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else if(fd_count != expected_fds) { \
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fprintf(stderr, "Max number of waitfds: %d not as expected: %d\n", \
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fd_count, expected_fds); \
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res = TEST_ERR_FAILURE; \
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goto test_cleanup; \
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}
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#define test_run_check(option, expected_fds) do { \
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res = test_run(URL, option, &fd_count); \
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test_check(expected_fds); \
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} while(0)
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/* ---------------------------------------------------------------- */
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enum {
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TEST_USE_HTTP1 = 0,
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TEST_USE_HTTP2,
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TEST_USE_HTTP2_MPLEX
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};
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static size_t emptyWriteFunc(void *ptr, size_t size, size_t nmemb,
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void *data) {
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(void)ptr; (void)data;
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return size * nmemb;
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}
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static int set_easy(char *URL, CURL *easy, long option)
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{
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int res = CURLE_OK;
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/* First set the URL that is about to receive our POST. */
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easy_setopt(easy, CURLOPT_URL, URL);
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/* get verbose debug output please */
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easy_setopt(easy, CURLOPT_VERBOSE, 1L);
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switch(option) {
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case TEST_USE_HTTP1:
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/* go http1 */
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easy_setopt(easy, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
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break;
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case TEST_USE_HTTP2:
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/* go http2 */
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easy_setopt(easy, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
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break;
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case TEST_USE_HTTP2_MPLEX:
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/* go http2 with multiplexing */
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easy_setopt(easy, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
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easy_setopt(easy, CURLOPT_PIPEWAIT, 1L);
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break;
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}
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/* no peer verify */
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easy_setopt(easy, CURLOPT_SSL_VERIFYPEER, 0L);
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easy_setopt(easy, CURLOPT_SSL_VERIFYHOST, 0L);
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/* include headers */
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easy_setopt(easy, CURLOPT_HEADER, 1L);
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/* empty write function */
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easy_setopt(easy, CURLOPT_WRITEFUNCTION, emptyWriteFunc);
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test_cleanup:
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return res;
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}
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static int test_run(char *URL, long option, unsigned int *max_fd_count)
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{
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CURLMcode mc = CURLM_OK;
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CURLM *multi = NULL;
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CURLM *multi1 = NULL;
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CURL *easy1 = NULL;
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CURL *easy2 = NULL;
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unsigned int max_count = 0;
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int still_running; /* keep number of running handles */
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CURLMsg *msg; /* for picking up messages with the transfer status */
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int msgs_left; /* how many messages are left */
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CURLcode result;
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int res = CURLE_OK;
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struct curl_waitfd ufds[10];
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struct curl_waitfd ufds1[10];
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int numfds;
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easy_init(easy1);
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easy_init(easy2);
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if(set_easy(URL, easy1, option) != CURLE_OK)
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goto test_cleanup;
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if(set_easy(URL, easy2, option) != CURLE_OK)
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goto test_cleanup;
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multi_init(multi);
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multi_init(multi1);
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if(option == TEST_USE_HTTP2_MPLEX)
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multi_setopt(multi, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
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multi_add_handle(multi, easy1);
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multi_add_handle(multi, easy2);
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while(!mc) {
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/* get the count of file descriptors from the transfers */
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unsigned int fd_count = 0;
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mc = curl_multi_perform(multi, &still_running);
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if(!still_running || mc != CURLM_OK)
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break;
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mc = curl_multi_waitfds(multi, ufds, 10, &fd_count);
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if(mc != CURLM_OK) {
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fprintf(stderr, "curl_multi_waitfds() failed, code %d.\n", mc);
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res = TEST_ERR_FAILURE;
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break;
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}
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if(!fd_count)
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continue; /* no descriptors yet */
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/* checking case when we don't have enough space for waitfds */
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mc = curl_multi_waitfds(multi, ufds1, fd_count - 1, NULL);
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if(mc != CURLM_OUT_OF_MEMORY) {
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fprintf(stderr, "curl_multi_waitfds() return code %d instead of "
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"CURLM_OUT_OF_MEMORY.\n", mc);
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res = TEST_ERR_FAILURE;
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break;
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}
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if(fd_count > max_count)
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max_count = fd_count;
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/* Do polling on descriptors in ufds in Multi 1 */
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mc = curl_multi_poll(multi1, ufds, fd_count, 500, &numfds);
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if(mc != CURLM_OK) {
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fprintf(stderr, "curl_multi_poll() failed, code %d.\\n", mc);
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res = TEST_ERR_FAILURE;
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break;
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}
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}
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for(;;) {
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msg = curl_multi_info_read(multi, &msgs_left);
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if(!msg)
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break;
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if(msg->msg == CURLMSG_DONE) {
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result = msg->data.result;
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if(!res)
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res = (int)result;
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}
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}
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curl_multi_remove_handle(multi, easy1);
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curl_multi_remove_handle(multi, easy2);
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test_cleanup:
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curl_easy_cleanup(easy1);
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curl_easy_cleanup(easy2);
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curl_multi_cleanup(multi);
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curl_multi_cleanup(multi1);
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if(max_fd_count)
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*max_fd_count = max_count;
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return res;
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}
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static int empty_multi_test(void)
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{
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CURLMcode mc = CURLM_OK;
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CURLM *multi = NULL;
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CURL *easy = NULL;
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struct curl_waitfd ufds[10];
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int res = CURLE_OK;
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unsigned int fd_count = 0;
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multi_init(multi);
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/* calling curl_multi_waitfds() on an empty multi handle. */
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mc = curl_multi_waitfds(multi, ufds, 10, &fd_count);
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if(mc != CURLM_OK) {
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fprintf(stderr, "curl_multi_waitfds() failed, code %d.\n", mc);
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res = TEST_ERR_FAILURE;
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goto test_cleanup;
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}
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else if(fd_count > 0) {
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fprintf(stderr, "curl_multi_waitfds() returned non-zero count of "
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"waitfds: %d.\n", fd_count);
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res = TEST_ERR_FAILURE;
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goto test_cleanup;
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}
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/* calling curl_multi_waitfds() on multi handle with added easy handle. */
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easy_init(easy);
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if(set_easy((char *)"http://example.com", easy, TEST_USE_HTTP1) != CURLE_OK)
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goto test_cleanup;
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multi_add_handle(multi, easy);
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mc = curl_multi_waitfds(multi, ufds, 10, &fd_count);
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if(mc != CURLM_OK) {
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fprintf(stderr, "curl_multi_waitfds() failed, code %d.\n", mc);
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res = TEST_ERR_FAILURE;
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goto test_cleanup;
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}
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else if(fd_count > 0) {
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fprintf(stderr, "curl_multi_waitfds() returned non-zero count of "
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"waitfds: %d.\n", fd_count);
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res = TEST_ERR_FAILURE;
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goto test_cleanup;
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}
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curl_multi_remove_handle(multi, easy);
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test_cleanup:
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curl_easy_cleanup(easy);
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curl_multi_cleanup(multi);
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return res;
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}
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int test(char *URL)
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{
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int res = CURLE_OK;
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unsigned int fd_count = 0;
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global_init(CURL_GLOBAL_ALL);
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/* Testing curl_multi_waitfds on empty and not started handles */
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res = empty_multi_test();
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if(res != CURLE_OK)
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goto test_cleanup;
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/* HTTP1, expected 2 waitfds - one for each transfer */
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test_run_check(TEST_USE_HTTP1, 2);
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/* HTTP2, expected 2 waitfds - one for each transfer */
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test_run_check(TEST_USE_HTTP2, 2);
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/* HTTP2 with multiplexing, expected 1 waitfds - one for all transfers */
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test_run_check(TEST_USE_HTTP2_MPLEX, 1);
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test_cleanup:
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curl_global_cleanup();
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return res;
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}
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