mirror of
https://github.com/moparisthebest/curl
synced 2024-08-13 17:03:50 -04:00
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
115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2021, 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.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.
|
|
*
|
|
***************************************************************************/
|
|
/* <DESC>
|
|
* A basic application source code using the multi interface doing two
|
|
* transfers in parallel.
|
|
* </DESC>
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
/* somewhat unix-specific */
|
|
#include <sys/time.h>
|
|
#include <unistd.h>
|
|
|
|
/* curl stuff */
|
|
#include <curl/curl.h>
|
|
|
|
/*
|
|
* Download a HTTP file and upload an FTP file simultaneously.
|
|
*/
|
|
|
|
#define HANDLECOUNT 2 /* Number of simultaneous transfers */
|
|
#define HTTP_HANDLE 0 /* Index for the HTTP transfer */
|
|
#define FTP_HANDLE 1 /* Index for the FTP transfer */
|
|
|
|
int main(void)
|
|
{
|
|
CURL *handles[HANDLECOUNT];
|
|
CURLM *multi_handle;
|
|
|
|
int still_running = 1; /* keep number of running handles */
|
|
int i;
|
|
|
|
CURLMsg *msg; /* for picking up messages with the transfer status */
|
|
int msgs_left; /* how many messages are left */
|
|
|
|
/* Allocate one CURL handle per transfer */
|
|
for(i = 0; i<HANDLECOUNT; i++)
|
|
handles[i] = curl_easy_init();
|
|
|
|
/* set the options (I left out a few, you'll get the point anyway) */
|
|
curl_easy_setopt(handles[HTTP_HANDLE], CURLOPT_URL, "https://example.com");
|
|
|
|
curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_URL, "ftp://example.com");
|
|
curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_UPLOAD, 1L);
|
|
|
|
/* init a multi stack */
|
|
multi_handle = curl_multi_init();
|
|
|
|
/* add the individual transfers */
|
|
for(i = 0; i<HANDLECOUNT; i++)
|
|
curl_multi_add_handle(multi_handle, handles[i]);
|
|
|
|
while(still_running) {
|
|
CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
|
|
|
|
if(still_running)
|
|
/* wait for activity, timeout or "nothing" */
|
|
mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
|
|
|
|
if(mc)
|
|
break;
|
|
}
|
|
/* See how the transfers went */
|
|
while((msg = curl_multi_info_read(multi_handle, &msgs_left))) {
|
|
if(msg->msg == CURLMSG_DONE) {
|
|
int idx;
|
|
|
|
/* Find out which handle this message is about */
|
|
for(idx = 0; idx<HANDLECOUNT; idx++) {
|
|
int found = (msg->easy_handle == handles[idx]);
|
|
if(found)
|
|
break;
|
|
}
|
|
|
|
switch(idx) {
|
|
case HTTP_HANDLE:
|
|
printf("HTTP transfer completed with status %d\n", msg->data.result);
|
|
break;
|
|
case FTP_HANDLE:
|
|
printf("FTP transfer completed with status %d\n", msg->data.result);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
curl_multi_cleanup(multi_handle);
|
|
|
|
/* Free the CURL handles */
|
|
for(i = 0; i<HANDLECOUNT; i++)
|
|
curl_easy_cleanup(handles[i]);
|
|
|
|
return 0;
|
|
}
|