mirror of
https://github.com/moparisthebest/curl
synced 2024-12-23 08:38:49 -05:00
87 lines
2.7 KiB
Groff
87 lines
2.7 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2020, 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.
|
|
.\" *
|
|
.\" **************************************************************************
|
|
.TH curl_multi_wakeup 3 "17 Nov 2019" "libcurl 7.68.0" "libcurl Manual"
|
|
.SH NAME
|
|
curl_multi_wakeup - wakes up a sleeping curl_multi_poll call
|
|
.SH SYNOPSIS
|
|
#include <curl/curl.h>
|
|
|
|
CURLMcode curl_multi_wakeup(CURLM *multi_handle);
|
|
.ad
|
|
.SH DESCRIPTION
|
|
This function can be called from any thread and it wakes up a
|
|
sleeping \fIcurl_multi_poll(3)\fP call that is currently (or will be)
|
|
waiting for activity or a timeout.
|
|
|
|
If the function is called when there is no \fIcurl_multi_poll(3)\fP call,
|
|
it will cause the next call to return immediately.
|
|
|
|
Calling this function only guarantees to wake up the current (or the next
|
|
if there is no current) \fIcurl_multi_poll(3)\fP call, which means it is
|
|
possible that multiple calls to this function will wake up the same waiting
|
|
operation.
|
|
|
|
This function has no effect on \fIcurl_multi_wait(3)\fP calls.
|
|
.SH RETURN VALUE
|
|
CURLMcode type, general libcurl multi interface error code.
|
|
.SH AVAILABILITY
|
|
Added in 7.68.0
|
|
.SH EXAMPLE
|
|
.nf
|
|
CURL *easy_handle;
|
|
CURLM *multi_handle;
|
|
|
|
/* add the individual easy handle */
|
|
curl_multi_add_handle(multi_handle, easy_handle);
|
|
|
|
/* this is thread 1 */
|
|
do {
|
|
CURLMcode mc;
|
|
int numfds;
|
|
|
|
mc = curl_multi_perform(multi_handle, &still_running);
|
|
|
|
if(mc == CURLM_OK) {
|
|
/* wait for activity, timeout or wakeup */
|
|
mc = curl_multi_poll(multi_handle, NULL, 0, 10000, &numfds);
|
|
}
|
|
|
|
if(time_to_die())
|
|
exit(1);
|
|
|
|
} while(still_running);
|
|
|
|
curl_multi_remove_handle(multi_handle, easy_handle);
|
|
|
|
/* this is thread 2 */
|
|
|
|
if(something makes us decide to stop thread 1) {
|
|
|
|
set_something_to_signal_thread_1_to_exit();
|
|
|
|
curl_multi_wakeup(multi_handle);
|
|
}
|
|
|
|
.fi
|
|
.SH "SEE ALSO"
|
|
.BR curl_multi_poll "(3), " curl_multi_wait "(3)"
|