| … | |
… | |
| 2288 | |
2288 | |
| 2289 | This call incurs the overhead of a syscall only once per loop iteration, |
2289 | This call incurs the overhead of a syscall only once per loop iteration, |
| 2290 | so while the overhead might be noticable, it doesn't apply to repeated |
2290 | so while the overhead might be noticable, it doesn't apply to repeated |
| 2291 | calls to C<ev_async_send>. |
2291 | calls to C<ev_async_send>. |
| 2292 | |
2292 | |
|
|
2293 | =item bool = ev_async_pending (ev_async *) |
|
|
2294 | |
|
|
2295 | Returns a non-zero value when C<ev_async_send> has been called on the |
|
|
2296 | watcher but the event has not yet been processed (or even noted) by the |
|
|
2297 | event loop. |
|
|
2298 | |
|
|
2299 | C<ev_async_send> sets a flag in the watcher and wakes up the loop. When |
|
|
2300 | the loop iterates next and checks for the watcher to have become active, |
|
|
2301 | it will reset the flag again. C<ev_async_pending> can be used to very |
|
|
2302 | quickly check wether invoking the loop might be a good idea. |
|
|
2303 | |
|
|
2304 | Not that this does I<not> check wether the watcher itself is pending, only |
|
|
2305 | wether it has been requested to make this watcher pending. |
|
|
2306 | |
| 2293 | =back |
2307 | =back |
| 2294 | |
2308 | |
| 2295 | |
2309 | |
| 2296 | =head1 OTHER FUNCTIONS |
2310 | =head1 OTHER FUNCTIONS |
| 2297 | |
2311 | |
