diff options
Diffstat (limited to 'docs/libcurl/curl_multi_wait.3')
| -rw-r--r-- | docs/libcurl/curl_multi_wait.3 | 46 |
1 files changed, 44 insertions, 2 deletions
diff --git a/docs/libcurl/curl_multi_wait.3 b/docs/libcurl/curl_multi_wait.3 index 45c2e8c9..9f15c5f8 100644 --- a/docs/libcurl/curl_multi_wait.3 +++ b/docs/libcurl/curl_multi_wait.3 @@ -5,11 +5,11 @@ .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * -.\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. +.\" * Copyright (C) 1998 - 2016, 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 http://curl.haxx.se/docs/copyright.html. +.\" * 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 @@ -71,6 +71,48 @@ priority read events such as out of band data. .IP CURL_WAIT_POLLOUT Bit flag to curl_waitfd.events indicating the socket should poll on write events such as the socket being clear to write without blocking. +.SH EXAMPLE +.nf +CURL *easy_handle; +CURLM *multi_handle; + +/* add the individual easy handle */ +curl_multi_add_handle(multi_handle, easy_handle); + +do { + CURLMcode mc; + int numfds; + + mc = curl_multi_perform(multi_handle, &still_running); + + if(mc == CURLM_OK ) { + /* wait for activity, timeout or "nothing" */ + mc = curl_multi_wait(multi_handle, NULL, 0, 1000, &numfds); + } + + if(mc != CURLM_OK) { + fprintf(stderr, "curl_multi failed, code %d.\n", mc); + break; + } + + /* 'numfds' being zero means either a timeout or no file descriptors to + wait for. Try timeout on first occurrence, then assume no file + descriptors and no file descriptors to wait for means wait for 100 + milliseconds. */ + + if(!numfds) { + repeats++; /* count number of repeated zero numfds */ + if(repeats > 1) { + WAITMS(100); /* sleep 100 milliseconds */ + } + } + else + repeats = 0; + +} while(still_running); + +curl_multi_remove_handle(multi_handle, easy_handle); +.fi .SH RETURN VALUE CURLMcode type, general libcurl multi interface error code. See \fIlibcurl-errors(3)\fP |