2024-03-15 20:55:33 -06:00
|
|
|
.\" generated by cd2nroff 0.1 from curl_multi_wakeup.md
|
2024-06-01 14:49:19 -06:00
|
|
|
.TH curl_multi_wakeup 3 "2024-06-01" libcurl
|
2024-03-15 20:55:33 -06:00
|
|
|
.SH NAME
|
|
|
|
|
curl_multi_wakeup \- wakes up a sleeping curl_multi_poll call
|
|
|
|
|
.SH SYNOPSIS
|
|
|
|
|
.nf
|
|
|
|
|
#include <curl/curl.h>
|
|
|
|
|
|
|
|
|
|
CURLMcode curl_multi_wakeup(CURLM *multi_handle);
|
|
|
|
|
.fi
|
|
|
|
|
.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 is about to be) waiting
|
|
|
|
|
for activity or a timeout.
|
|
|
|
|
|
|
|
|
|
If the function is called when there is no \fIcurl_multi_poll(3)\fP call, it
|
|
|
|
|
causes 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 wake up the same waiting operation.
|
|
|
|
|
|
|
|
|
|
This function has no effect on \fIcurl_multi_wait(3)\fP calls.
|
2024-03-30 12:28:04 -06:00
|
|
|
.SH PROTOCOLS
|
|
|
|
|
All
|
2024-03-15 20:55:33 -06:00
|
|
|
.SH EXAMPLE
|
|
|
|
|
.nf
|
|
|
|
|
extern int time_to_die(void);
|
|
|
|
|
extern int set_something_to_signal_thread_1_to_exit(void);
|
|
|
|
|
extern int decide_to_stop_thread1();
|
|
|
|
|
|
|
|
|
|
int main(void)
|
|
|
|
|
{
|
|
|
|
|
CURL *easy;
|
|
|
|
|
CURLM *multi;
|
|
|
|
|
int still_running;
|
|
|
|
|
|
|
|
|
|
/* add the individual easy handle */
|
|
|
|
|
curl_multi_add_handle(multi, easy);
|
|
|
|
|
|
|
|
|
|
/* this is thread 1 */
|
|
|
|
|
do {
|
|
|
|
|
CURLMcode mc;
|
|
|
|
|
int numfds;
|
|
|
|
|
|
|
|
|
|
mc = curl_multi_perform(multi, &still_running);
|
|
|
|
|
|
|
|
|
|
if(mc == CURLM_OK) {
|
|
|
|
|
/* wait for activity, timeout or wakeup */
|
|
|
|
|
mc = curl_multi_poll(multi, NULL, 0, 10000, &numfds);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if(time_to_die())
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
} while(still_running);
|
|
|
|
|
|
|
|
|
|
curl_multi_remove_handle(multi, easy);
|
|
|
|
|
|
|
|
|
|
/* this is thread 2 */
|
|
|
|
|
|
|
|
|
|
if(decide_to_stop_thread1()) {
|
|
|
|
|
|
|
|
|
|
set_something_to_signal_thread_1_to_exit();
|
|
|
|
|
|
|
|
|
|
curl_multi_wakeup(multi);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
.fi
|
|
|
|
|
.SH AVAILABILITY
|
|
|
|
|
Added in 7.68.0
|
|
|
|
|
.SH RETURN VALUE
|
|
|
|
|
CURLMcode type, general libcurl multi interface error code.
|
|
|
|
|
.SH SEE ALSO
|
|
|
|
|
.BR curl_multi_poll (3),
|
|
|
|
|
.BR curl_multi_wait (3)
|
