129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
/*****************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* $Id$
|
|
*
|
|
* This is an example application source code using the multi interface.
|
|
*/
|
|
|
|
#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(int argc, char **argv)
|
|
{
|
|
CURL *handles[HANDLECOUNT];
|
|
CURLM *multi_handle;
|
|
|
|
int still_running; /* 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, "http://website.com");
|
|
|
|
curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_URL, "ftp://ftpsite.com");
|
|
curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_UPLOAD, TRUE);
|
|
|
|
/* 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]);
|
|
|
|
/* we start some action by calling perform right away */
|
|
while(CURLM_CALL_MULTI_PERFORM ==
|
|
curl_multi_perform(multi_handle, &still_running));
|
|
|
|
while(still_running) {
|
|
struct timeval timeout;
|
|
int rc; /* select() return code */
|
|
|
|
fd_set fdread;
|
|
fd_set fdwrite;
|
|
fd_set fdexcep;
|
|
int maxfd;
|
|
|
|
FD_ZERO(&fdread);
|
|
FD_ZERO(&fdwrite);
|
|
FD_ZERO(&fdexcep);
|
|
|
|
/* set a suitable timeout to play around with */
|
|
timeout.tv_sec = 1;
|
|
timeout.tv_usec = 0;
|
|
|
|
/* get file descriptors from the transfers */
|
|
curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
|
|
|
|
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
|
|
|
|
switch(rc) {
|
|
case -1:
|
|
/* select error */
|
|
break;
|
|
case 0:
|
|
/* timeout, do something else */
|
|
break;
|
|
default:
|
|
/* one or more of curl's file descriptors say there's data to read
|
|
or write */
|
|
while(CURLM_CALL_MULTI_PERFORM ==
|
|
curl_multi_perform(multi_handle, &still_running));
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* See how the transfers went */
|
|
while ((msg = curl_multi_info_read(multi_handle, &msgs_left))) {
|
|
if (msg->msg == CURLMSG_DONE) {
|
|
|
|
int idx, found = 0;
|
|
|
|
/* Find out which handle this message is about */
|
|
for (idx=0; (!found && (idx<HANDLECOUNT)); idx++) found = (msg->easy_handle == handles[idx]);
|
|
|
|
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;
|
|
}
|