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/***************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * $Id: multi-double.c,v 1.3 2002/12/03 12:34:43 bagder Exp $ * * This is a very simple example 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>
/* * Simply download two HTTP files! */ int main(int argc, char **argv) { CURL *http_handle; CURL *http_handle2; CURLM *multi_handle;
int still_running; /* keep number of running handles */
http_handle = curl_easy_init(); http_handle2 = curl_easy_init();
/* set options */ curl_easy_setopt(http_handle, CURLOPT_URL, "http://www.haxx.se/");
/* set options */ curl_easy_setopt(http_handle2, CURLOPT_URL, "http://localhost/");
/* init a multi stack */ multi_handle = curl_multi_init();
/* add the individual transfers */ curl_multi_add_handle(multi_handle, http_handle); curl_multi_add_handle(multi_handle, http_handle2);
/* 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: default: /* timeout or readable/writable sockets */ while(CURLM_CALL_MULTI_PERFORM == curl_multi_perform(multi_handle, &still_running)); break; } }
curl_multi_cleanup(multi_handle);
curl_easy_cleanup(http_handle); curl_easy_cleanup(http_handle2);
return 0; }
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