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ae8e11ed5f
The API is soon two years old and deserves being shown as the primary way to drive multi code as it makes it much easier to write code. multi-poll: removed multi-legacy: add to show how we did multi API use before curl_multi_wait/poll. Closes #7352
109 lines
3.2 KiB
C
109 lines
3.2 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) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
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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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***************************************************************************/
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/* <DESC>
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* using the multi interface to do a multipart formpost without blocking
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* </DESC>
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/time.h>
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#include <curl/curl.h>
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int main(void)
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{
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CURL *curl;
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CURLM *multi_handle;
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int still_running = 0;
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struct curl_httppost *formpost = NULL;
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struct curl_httppost *lastptr = NULL;
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struct curl_slist *headerlist = NULL;
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static const char buf[] = "Expect:";
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/* Fill in the file upload field. This makes libcurl load data from
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the given file name when curl_easy_perform() is called. */
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curl_formadd(&formpost,
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&lastptr,
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CURLFORM_COPYNAME, "sendfile",
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CURLFORM_FILE, "postit2.c",
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CURLFORM_END);
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/* Fill in the filename field */
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curl_formadd(&formpost,
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&lastptr,
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CURLFORM_COPYNAME, "filename",
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CURLFORM_COPYCONTENTS, "postit2.c",
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CURLFORM_END);
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/* Fill in the submit field too, even if this is rarely needed */
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curl_formadd(&formpost,
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&lastptr,
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CURLFORM_COPYNAME, "submit",
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CURLFORM_COPYCONTENTS, "send",
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CURLFORM_END);
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curl = curl_easy_init();
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multi_handle = curl_multi_init();
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/* initialize custom header list (stating that Expect: 100-continue is not
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wanted */
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headerlist = curl_slist_append(headerlist, buf);
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if(curl && multi_handle) {
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/* what URL that receives this POST */
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curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/upload.cgi");
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curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
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curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
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curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
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curl_multi_add_handle(multi_handle, curl);
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do {
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CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
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if(still_running)
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/* wait for activity, timeout or "nothing" */
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mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
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if(mc)
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break;
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} while(still_running);
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curl_multi_cleanup(multi_handle);
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/* always cleanup */
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curl_easy_cleanup(curl);
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/* then cleanup the formpost chain */
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curl_formfree(formpost);
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/* free slist */
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curl_slist_free_all(headerlist);
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}
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return 0;
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}
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