diff options
| -rw-r--r-- | docs/examples/Makefile.inc | 2 | ||||
| -rw-r--r-- | docs/examples/multi-poll.c | 76 |
2 files changed, 77 insertions, 1 deletions
diff --git a/docs/examples/Makefile.inc b/docs/examples/Makefile.inc index f03fcf2f0..b588b5fee 100644 --- a/docs/examples/Makefile.inc +++ b/docs/examples/Makefile.inc @@ -36,7 +36,7 @@ check_PROGRAMS = 10-at-a-time anyauthput cookie_interface debug fileupload \ ftpuploadresume sslbackend postit2-formadd multi-formadd \ shared-connection-cache sftpuploadresume http2-pushinmemory parseurl \ urlapi imap-authzid pop3-authzid smtp-authzid http3 altsvc \ - http3-present + http3-present multi-poll # These examples require external dependencies that may not be commonly # available on POSIX systems, so don't bother attempting to compile them here. diff --git a/docs/examples/multi-poll.c b/docs/examples/multi-poll.c new file mode 100644 index 000000000..255a3d45b --- /dev/null +++ b/docs/examples/multi-poll.c @@ -0,0 +1,76 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2019, 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.haxx.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> + * single download with the multi interface's curl_multi_poll + * </DESC> + */ + +#include <stdio.h> +#include <string.h> + +/* somewhat unix-specific */ +#include <sys/time.h> +#include <unistd.h> + +/* curl stuff */ +#include <curl/curl.h> + +int main(void) +{ + CURL *http_handle; + CURLM *multi_handle; + int still_running = 1; /* keep number of running handles */ + + curl_global_init(CURL_GLOBAL_DEFAULT); + + http_handle = curl_easy_init(); + + curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/"); + + multi_handle = curl_multi_init(); + + curl_multi_add_handle(multi_handle, http_handle); + + while(still_running) { + CURLMcode mc; /* curl_multi_poll() return code */ + int numfds; + + /* we start some action by calling perform right away */ + 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, &numfds); + + if(mc != CURLM_OK) { + fprintf(stderr, "curl_multi_wait() failed, code %d.\n", mc); + break; + } + } + + curl_multi_remove_handle(multi_handle, http_handle); + curl_easy_cleanup(http_handle); + curl_multi_cleanup(multi_handle); + curl_global_cleanup(); + + return 0; +} |