| … | |
… | |
| 2 | EV - perl interface to libev, a high performance full-featured event |
2 | EV - perl interface to libev, a high performance full-featured event |
| 3 | loop |
3 | loop |
| 4 | |
4 | |
| 5 | SYNOPSIS |
5 | SYNOPSIS |
| 6 | use EV; |
6 | use EV; |
| 7 | |
7 | |
| 8 | # TIMERS |
8 | # TIMERS |
| 9 | |
9 | |
| 10 | my $w = EV::timer 2, 0, sub { |
10 | my $w = EV::timer 2, 0, sub { |
| 11 | warn "is called after 2s"; |
11 | warn "is called after 2s"; |
| 12 | }; |
12 | }; |
| 13 | |
13 | |
| 14 | my $w = EV::timer 2, 2, sub { |
14 | my $w = EV::timer 2, 2, sub { |
| 15 | warn "is called roughly every 2s (repeat = 2)"; |
15 | warn "is called roughly every 2s (repeat = 2)"; |
| 16 | }; |
16 | }; |
| 17 | |
17 | |
| 18 | undef $w; # destroy event watcher again |
18 | undef $w; # destroy event watcher again |
| 19 | |
19 | |
| 20 | my $w = EV::periodic 0, 60, 0, sub { |
20 | my $w = EV::periodic 0, 60, 0, sub { |
| 21 | warn "is called every minute, on the minute, exactly"; |
21 | warn "is called every minute, on the minute, exactly"; |
| 22 | }; |
22 | }; |
|
|
23 | |
| 23 | |
24 | # IO |
| 24 | # IO |
25 | |
| 25 | |
|
|
| 26 | my $w = EV::io *STDIN, EV::READ, sub { |
26 | my $w = EV::io *STDIN, EV::READ, sub { |
| 27 | my ($w, $revents) = @_; # all callbacks receive the watcher and event mask |
27 | my ($w, $revents) = @_; # all callbacks receive the watcher and event mask |
| 28 | warn "stdin is readable, you entered: ", <STDIN>; |
28 | warn "stdin is readable, you entered: ", <STDIN>; |
| 29 | }; |
29 | }; |
| 30 | |
30 | |
| 31 | # SIGNALS |
31 | # SIGNALS |
| 32 | |
32 | |
| 33 | my $w = EV::signal 'QUIT', sub { |
33 | my $w = EV::signal 'QUIT', sub { |
| 34 | warn "sigquit received\n"; |
34 | warn "sigquit received\n"; |
| 35 | }; |
35 | }; |
| 36 | |
36 | |
| 37 | # CHILD/PID STATUS CHANGES |
37 | # CHILD/PID STATUS CHANGES |
| 38 | |
38 | |
| 39 | my $w = EV::child 666, 0, sub { |
39 | my $w = EV::child 666, 0, sub { |
| 40 | my ($w, $revents) = @_; |
40 | my ($w, $revents) = @_; |
| 41 | my $status = $w->rstatus; |
41 | my $status = $w->rstatus; |
| 42 | }; |
42 | }; |
| 43 | |
43 | |
| 44 | # STAT CHANGES |
44 | # STAT CHANGES |
| 45 | my $w = EV::stat "/etc/passwd", 10, sub { |
45 | my $w = EV::stat "/etc/passwd", 10, sub { |
| 46 | my ($w, $revents) = @_; |
46 | my ($w, $revents) = @_; |
| 47 | warn $w->path, " has changed somehow.\n"; |
47 | warn $w->path, " has changed somehow.\n"; |
| 48 | }; |
48 | }; |
| 49 | |
49 | |
| 50 | # MAINLOOP |
50 | # MAINLOOP |
| 51 | EV::loop; # loop until EV::unloop is called or all watchers stop |
51 | EV::loop; # loop until EV::unloop is called or all watchers stop |
| 52 | EV::loop EV::LOOP_ONESHOT; # block until at least one event could be handled |
52 | EV::loop EV::LOOP_ONESHOT; # block until at least one event could be handled |
| 53 | EV::loop EV::LOOP_NONBLOCK; # try to handle same events, but do not block |
53 | EV::loop EV::LOOP_NONBLOCK; # try to handle same events, but do not block |
| 54 | |
54 | |
| 55 | DESCRIPTION |
55 | DESCRIPTION |
| 56 | This module provides an interface to libev |
56 | This module provides an interface to libev |
| 57 | (<http://software.schmorp.de/pkg/libev.html>). While the documentation |
57 | (<http://software.schmorp.de/pkg/libev.html>). While the documentation |
| 58 | below is comprehensive, one might also consult the documentation of |
58 | below is comprehensive, one might also consult the documentation of |
| 59 | libev itself (<http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod>) |
59 | libev itself (<http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod> or |
| 60 | for more subtle details on watcher semantics or some discussion on the |
60 | perldoc EV::libev) for more subtle details on watcher semantics or some |
| 61 | available backends, or how to force a specific backend with |
61 | discussion on the available backends, or how to force a specific backend |
| 62 | "LIBEV_FLAGS", or just about in any case because it has much more |
62 | with "LIBEV_FLAGS", or just about in any case because it has much more |
| 63 | detailed information. |
63 | detailed information. |
| 64 | |
64 | |
| 65 | This module is very fast and scalable. It is actually so fast that you |
65 | This module is very fast and scalable. It is actually so fast that you |
| 66 | can use it through the AnyEvent module, stay portable to other event |
66 | can use it through the AnyEvent module, stay portable to other event |
| 67 | loops (if you don't rely on any watcher types not available through it) |
67 | loops (if you don't rely on any watcher types not available through it) |
| 68 | and still be faster than with any other event loop currently supported |
68 | and still be faster than with any other event loop currently supported |
| 69 | in Perl. |
69 | in Perl. |
|
|
70 | |
|
|
71 | MODULE EXPORTS |
|
|
72 | This module does not export any symbols. |
| 70 | |
73 | |
| 71 | EVENT LOOPS |
74 | EVENT LOOPS |
| 72 | EV supports multiple event loops: There is a single "default event loop" |
75 | EV supports multiple event loops: There is a single "default event loop" |
| 73 | that can handle everything including signals and child watchers, and any |
76 | that can handle everything including signals and child watchers, and any |
| 74 | number of "dynamic event loops" that can use different backends (with |
77 | number of "dynamic event loops" that can use different backends (with |
| … | |
… | |
| 81 | default loop as this is fastest (perl-wise), best supported by other |
84 | default loop as this is fastest (perl-wise), best supported by other |
| 82 | modules (e.g. AnyEvent or Coro) and most portable event loop. |
85 | modules (e.g. AnyEvent or Coro) and most portable event loop. |
| 83 | |
86 | |
| 84 | For specific programs you can create additional event loops dynamically. |
87 | For specific programs you can create additional event loops dynamically. |
| 85 | |
88 | |
| 86 | If you want to take avdantage of kqueue (which often works properly for |
89 | If you want to take advantage of kqueue (which often works properly for |
| 87 | sockets only) even though the default loop doesn't enable it, you can |
90 | sockets only) even though the default loop doesn't enable it, you can |
| 88 | *embed* a kqueue loop into the default loop: running the default loop |
91 | *embed* a kqueue loop into the default loop: running the default loop |
| 89 | will then also service the kqueue loop to some extent. See the example |
92 | will then also service the kqueue loop to some extent. See the example |
| 90 | in the section about embed watchers for an example on how to achieve |
93 | in the section about embed watchers for an example on how to achieve |
| 91 | that. |
94 | that. |
| 92 | |
95 | |
| 93 | $loop = new EV::loop [$flags] |
96 | $loop = new EV::Loop [$flags] |
| 94 | Create a new event loop as per the specified flags. Please refer to |
97 | Create a new event loop as per the specified flags. Please refer to |
| 95 | the "ev_loop_new ()" function description in the libev documentation |
98 | the "ev_loop_new ()" function description in the libev documentation |
| 96 | (<http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#GLOBAL_FUNCTI |
99 | (<http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#GLOBAL_FUNCTI |
| 97 | ONS>) for more info. |
100 | ONS>, or locally-installed as EV::libev manpage) for more info. |
| 98 | |
101 | |
| 99 | The loop will automatically be destroyed when it is no longer |
102 | The loop will automatically be destroyed when it is no longer |
| 100 | referenced by any watcher and the loop object goes out of scope. |
103 | referenced by any watcher and the loop object goes out of scope. |
| 101 | |
104 | |
| 102 | Using "EV::FLAG_FORKCHECK" is recommended, as only the default event |
105 | If you are not embedding the loop, then Using "EV::FLAG_FORKCHECK" |
| 103 | loop is protected by this module. |
106 | is recommended, as only the default event loop is protected by this |
|
|
107 | module. If you *are* embedding this loop in the default loop, this |
|
|
108 | is not necessary, as "EV::embed" automatically does the right thing |
|
|
109 | on fork. |
| 104 | |
110 | |
| 105 | $loop->loop_fork |
111 | $loop->loop_fork |
| 106 | Must be called after a fork in the child, before entering or |
112 | Must be called after a fork in the child, before entering or |
| 107 | continuing the event loop. An alternative is to use |
113 | continuing the event loop. An alternative is to use |
| 108 | "EV::FLAG_FORKCHECK" which calls this function automatically, at |
114 | "EV::FLAG_FORKCHECK" which calls this function automatically, at |
| … | |
… | |
| 143 | Returns the current time in (fractional) seconds since the epoch. |
149 | Returns the current time in (fractional) seconds since the epoch. |
| 144 | |
150 | |
| 145 | $time = EV::now |
151 | $time = EV::now |
| 146 | $time = $loop->now |
152 | $time = $loop->now |
| 147 | Returns the time the last event loop iteration has been started. |
153 | Returns the time the last event loop iteration has been started. |
| 148 | This is the time that (relative) timers are based on, and refering |
154 | This is the time that (relative) timers are based on, and referring |
| 149 | to it is usually faster then calling EV::time. |
155 | to it is usually faster then calling EV::time. |
|
|
156 | |
|
|
157 | EV::now_update |
|
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158 | $loop->now_update |
|
|
159 | Establishes the current time by querying the kernel, updating the |
|
|
160 | time returned by "EV::now" in the progress. This is a costly |
|
|
161 | operation and is usually done automatically within "EV::loop". |
|
|
162 | |
|
|
163 | This function is rarely useful, but when some event callback runs |
|
|
164 | for a very long time without entering the event loop, updating |
|
|
165 | libev's idea of the current time is a good idea. |
|
|
166 | |
|
|
167 | EV::suspend |
|
|
168 | $loop->suspend |
|
|
169 | EV::resume |
|
|
170 | $loop->resume |
|
|
171 | These two functions suspend and resume a loop, for use when the loop |
|
|
172 | is not used for a while and timeouts should not be processed. |
|
|
173 | |
|
|
174 | A typical use case would be an interactive program such as a game: |
|
|
175 | When the user presses "^Z" to suspend the game and resumes it an |
|
|
176 | hour later it would be best to handle timeouts as if no time had |
|
|
177 | actually passed while the program was suspended. This can be |
|
|
178 | achieved by calling "suspend" in your "SIGTSTP" handler, sending |
|
|
179 | yourself a "SIGSTOP" and calling "resume" directly afterwards to |
|
|
180 | resume timer processing. |
|
|
181 | |
|
|
182 | Effectively, all "timer" watchers will be delayed by the time spend |
|
|
183 | between "suspend" and "resume", and all "periodic" watchers will be |
|
|
184 | rescheduled (that is, they will lose any events that would have |
|
|
185 | occured while suspended). |
|
|
186 | |
|
|
187 | After calling "suspend" you must not call *any* function on the |
|
|
188 | given loop other than "resume", and you must not call "resume" |
|
|
189 | without a previous call to "suspend". |
|
|
190 | |
|
|
191 | Calling "suspend"/"resume" has the side effect of updating the event |
|
|
192 | loop time (see "now_update"). |
| 150 | |
193 | |
| 151 | $backend = EV::backend |
194 | $backend = EV::backend |
| 152 | $backend = $loop->backend |
195 | $backend = $loop->backend |
| 153 | Returns an integer describing the backend used by libev |
196 | Returns an integer describing the backend used by libev |
| 154 | (EV::METHOD_SELECT or EV::METHOD_EPOLL). |
197 | (EV::BACKEND_SELECT or EV::BACKEND_EPOLL). |
| 155 | |
198 | |
| 156 | EV::loop [$flags] |
199 | EV::loop [$flags] |
| 157 | $loop->loop ([$flags]) |
200 | $loop->loop ([$flags]) |
| 158 | Begin checking for events and calling callbacks. It returns when a |
201 | Begin checking for events and calling callbacks. It returns when a |
| 159 | callback calls EV::unloop. |
202 | callback calls EV::unloop. |
| … | |
… | |
| 173 | EV::loop will return as fast as possible. |
216 | EV::loop will return as fast as possible. |
| 174 | |
217 | |
| 175 | $count = EV::loop_count |
218 | $count = EV::loop_count |
| 176 | $count = $loop->loop_count |
219 | $count = $loop->loop_count |
| 177 | Return the number of times the event loop has polled for new events. |
220 | Return the number of times the event loop has polled for new events. |
| 178 | Sometiems useful as a generation counter. |
221 | Sometimes useful as a generation counter. |
| 179 | |
222 | |
| 180 | EV::once $fh_or_undef, $events, $timeout, $cb->($revents) |
223 | EV::once $fh_or_undef, $events, $timeout, $cb->($revents) |
| 181 | $loop->once ($fh_or_undef, $events, $timeout, $cb->($revents)) |
224 | $loop->once ($fh_or_undef, $events, $timeout, $cb->($revents)) |
| 182 | This function rolls together an I/O and a timer watcher for a single |
225 | This function rolls together an I/O and a timer watcher for a single |
| 183 | one-shot event without the need for managing a watcher object. |
226 | one-shot event without the need for managing a watcher object. |
| … | |
… | |
| 217 | $loop->set_timeout_collect_interval ($time) |
260 | $loop->set_timeout_collect_interval ($time) |
| 218 | These advanced functions set the minimum block interval when polling |
261 | These advanced functions set the minimum block interval when polling |
| 219 | for I/O events and the minimum wait interval for timer events. See |
262 | for I/O events and the minimum wait interval for timer events. See |
| 220 | the libev documentation at |
263 | the libev documentation at |
| 221 | <http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#FUNCTIONS_CONT |
264 | <http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#FUNCTIONS_CONT |
| 222 | ROLLING_THE_EVENT_LOOP> for a more detailed discussion. |
265 | ROLLING_THE_EVENT_LOOP> (locally installed as EV::libev) for a more |
|
|
266 | detailed discussion. |
|
|
267 | |
|
|
268 | $count = EV::pending_count |
|
|
269 | $count = $loop->pending_count |
|
|
270 | Returns the number of currently pending watchers. |
|
|
271 | |
|
|
272 | EV::invoke_pending |
|
|
273 | $loop->invoke_pending |
|
|
274 | Invoke all currently pending watchers. |
| 223 | |
275 | |
| 224 | WATCHER OBJECTS |
276 | WATCHER OBJECTS |
| 225 | A watcher is an object that gets created to record your interest in some |
277 | A watcher is an object that gets created to record your interest in some |
| 226 | event. For instance, if you want to wait for STDIN to become readable, |
278 | event. For instance, if you want to wait for STDIN to become readable, |
| 227 | you would create an EV::io watcher for that: |
279 | you would create an EV::io watcher for that: |
| … | |
… | |
| 236 | will be called with at least two arguments: the watcher and a bitmask of |
288 | will be called with at least two arguments: the watcher and a bitmask of |
| 237 | received events. |
289 | received events. |
| 238 | |
290 | |
| 239 | Each watcher type has its associated bit in revents, so you can use the |
291 | Each watcher type has its associated bit in revents, so you can use the |
| 240 | same callback for multiple watchers. The event mask is named after the |
292 | same callback for multiple watchers. The event mask is named after the |
| 241 | type, i..e. EV::child sets EV::CHILD, EV::prepare sets EV::PREPARE, |
293 | type, i.e. EV::child sets EV::CHILD, EV::prepare sets EV::PREPARE, |
| 242 | EV::periodic sets EV::PERIODIC and so on, with the exception of I/O |
294 | EV::periodic sets EV::PERIODIC and so on, with the exception of I/O |
| 243 | events (which can set both EV::READ and EV::WRITE bits), and EV::timer |
295 | events (which can set both EV::READ and EV::WRITE bits), and EV::timer |
| 244 | (which uses EV::TIMEOUT). |
296 | (which uses EV::TIMEOUT). |
| 245 | |
297 | |
| 246 | In the rare case where one wants to create a watcher but not start it at |
298 | In the rare case where one wants to create a watcher but not start it at |
| … | |
… | |
| 331 | |
383 | |
| 332 | In this case you can clear the keepalive status, which means that |
384 | In this case you can clear the keepalive status, which means that |
| 333 | even though your watcher is active, it won't keep "EV::loop" from |
385 | even though your watcher is active, it won't keep "EV::loop" from |
| 334 | returning. |
386 | returning. |
| 335 | |
387 | |
| 336 | The initial value for keepalive is true (enabled), and you cna |
388 | The initial value for keepalive is true (enabled), and you can |
| 337 | change it any time. |
389 | change it any time. |
| 338 | |
390 | |
| 339 | Example: Register an I/O watcher for some UDP socket but do not keep |
391 | Example: Register an I/O watcher for some UDP socket but do not keep |
| 340 | the event loop from running just because of that watcher. |
392 | the event loop from running just because of that watcher. |
| 341 | |
393 | |
| … | |
… | |
| 515 | Return the time that the watcher is expected to trigger next. |
567 | Return the time that the watcher is expected to trigger next. |
| 516 | |
568 | |
| 517 | SIGNAL WATCHERS - signal me when a signal gets signalled! |
569 | SIGNAL WATCHERS - signal me when a signal gets signalled! |
| 518 | $w = EV::signal $signal, $callback |
570 | $w = EV::signal $signal, $callback |
| 519 | $w = EV::signal_ns $signal, $callback |
571 | $w = EV::signal_ns $signal, $callback |
|
|
572 | $w = $loop->signal ($signal, $callback) |
|
|
573 | $w = $loop->signal_ns ($signal, $callback) |
| 520 | Call the callback when $signal is received (the signal can be |
574 | Call the callback when $signal is received (the signal can be |
| 521 | specified by number or by name, just as with "kill" or %SIG). |
575 | specified by number or by name, just as with "kill" or %SIG). |
|
|
576 | |
|
|
577 | Only one event loop can grab a given signal - attempting to grab the |
|
|
578 | same signal from two EV loops will crash the program immediately or |
|
|
579 | cause data corruption. |
| 522 | |
580 | |
| 523 | EV will grab the signal for the process (the kernel only allows one |
581 | EV will grab the signal for the process (the kernel only allows one |
| 524 | component to receive a signal at a time) when you start a signal |
582 | component to receive a signal at a time) when you start a signal |
| 525 | watcher, and removes it again when you stop it. Perl does the same |
583 | watcher, and removes it again when you stop it. Perl does the same |
| 526 | when you add/remove callbacks to %SIG, so watch out. |
584 | when you add/remove callbacks to %SIG, so watch out. |
| … | |
… | |
| 741 | # make the dispatcher handle any new stuff |
799 | # make the dispatcher handle any new stuff |
| 742 | ... not shown |
800 | ... not shown |
| 743 | }; |
801 | }; |
| 744 | |
802 | |
| 745 | The callbacks of the created watchers will not be called as the |
803 | The callbacks of the created watchers will not be called as the |
| 746 | watchers are destroyed before this cna happen (remember EV::check |
804 | watchers are destroyed before this can happen (remember EV::check |
| 747 | gets called first). |
805 | gets called first). |
| 748 | |
806 | |
| 749 | The "check_ns" variant doesn't start (activate) the newly created |
807 | The "check_ns" variant doesn't start (activate) the newly created |
| 750 | watcher. |
808 | watcher. |
| 751 | |
809 | |
| … | |
… | |
| 770 | embedded loop, other types of watchers might be handled in a delayed or |
828 | embedded loop, other types of watchers might be handled in a delayed or |
| 771 | incorrect fashion and must not be used). |
829 | incorrect fashion and must not be used). |
| 772 | |
830 | |
| 773 | See the libev documentation at |
831 | See the libev documentation at |
| 774 | <http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#code_ev_embed_code |
832 | <http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#code_ev_embed_code |
| 775 | _when_one_backend_> for more details. |
833 | _when_one_backend_> (locally installed as EV::libev) for more details. |
| 776 | |
834 | |
| 777 | In short, this watcher is most useful on BSD systems without working |
835 | In short, this watcher is most useful on BSD systems without working |
| 778 | kqueue to still be able to handle a large number of sockets: |
836 | kqueue to still be able to handle a large number of sockets: |
| 779 | |
837 | |
| 780 | my $socket_loop; |
838 | my $socket_loop; |
| 781 | |
839 | |
| 782 | # check wether we use SELECT or POLL _and_ KQUEUE is supported |
840 | # check wether we use SELECT or POLL _and_ KQUEUE is supported |
| 783 | if ( |
841 | if ( |
| 784 | (EV::backend & (EV::BACKEND_POLL | EV::BACKEND_SELECT)) |
842 | (EV::backend & (EV::BACKEND_POLL | EV::BACKEND_SELECT)) |
| 785 | && (EV::supported_backends & EV::embeddable_backends & EV::BACKEND_KQUEUE) |
843 | && (EV::supported_backends & EV::embeddable_backends & EV::BACKEND_KQUEUE) |
| 786 | ) { |
844 | ) { |
| 787 | # use kqueue for sockets |
845 | # use kqueue for sockets |
| 788 | $socket_loop = new EV::Loop EV::BACKEND_KQUEUE | EV::FLAG_NOENV; |
846 | $socket_loop = new EV::Loop EV::BACKEND_KQUEUE | EV::FLAG_NOENV; |
| 789 | } |
847 | } |
| 790 | |
848 | |
| 791 | # use the default loop otherwise |
849 | # use the default loop otherwise |
| 792 | $socket_loop ||= EV::default_loop; |
850 | $socket_loop ||= EV::default_loop; |
| 793 | |
851 | |
| 794 | $w = EV::embed $otherloop[, $callback] |
852 | $w = EV::embed $otherloop[, $callback] |
| 795 | $w = EV::embed_ns $otherloop[, $callback] |
853 | $w = EV::embed_ns $otherloop[, $callback] |
| 796 | $w = $loop->embed ($otherloop[, $callback]) |
854 | $w = $loop->embed ($otherloop[, $callback]) |
| … | |
… | |
| 803 | The "embed_ns" variant doesn't start (activate) the newly created |
861 | The "embed_ns" variant doesn't start (activate) the newly created |
| 804 | watcher. |
862 | watcher. |
| 805 | |
863 | |
| 806 | ASYNC WATCHERS - how to wake up another event loop |
864 | ASYNC WATCHERS - how to wake up another event loop |
| 807 | Async watchers are provided by EV, but have little use in perl directly, |
865 | Async watchers are provided by EV, but have little use in perl directly, |
| 808 | as perl neither supports threads nor direct access to signal handlers or |
866 | as perl neither supports threads running in parallel nor direct access |
| 809 | other contexts where they could be of value. |
867 | to signal handlers or other contexts where they could be of value. |
| 810 | |
868 | |
| 811 | It is, however, possible to use them from the XS level. |
869 | It is, however, possible to use them from the XS level. |
| 812 | |
870 | |
| 813 | Please see the libev documentation for further details. |
871 | Please see the libev documentation for further details. |
| 814 | |
872 | |
| … | |
… | |
| 833 | my $async_check = EV::check sub { }; |
891 | my $async_check = EV::check sub { }; |
| 834 | |
892 | |
| 835 | This ensures that perl gets into control for a short time to handle any |
893 | This ensures that perl gets into control for a short time to handle any |
| 836 | pending signals, and also ensures (slightly) slower overall operation. |
894 | pending signals, and also ensures (slightly) slower overall operation. |
| 837 | |
895 | |
| 838 | THREADS |
896 | ITHREADS |
| 839 | Threads are not supported by this module in any way. Perl pseudo-threads |
897 | Ithreads are not supported by this module in any way. Perl |
| 840 | is evil stuff and must die. As soon as Perl gains real threads I will |
898 | pseudo-threads is evil stuff and must die. Real threads as provided by |
| 841 | work on thread support for it. |
899 | Coro are fully supported (and enhanced support is available via |
|
|
900 | Coro::EV). |
| 842 | |
901 | |
| 843 | FORK |
902 | FORK |
| 844 | Most of the "improved" event delivering mechanisms of modern operating |
903 | Most of the "improved" event delivering mechanisms of modern operating |
| 845 | systems have quite a few problems with fork(2) (to put it bluntly: it is |
904 | systems have quite a few problems with fork(2) (to put it bluntly: it is |
| 846 | not supported and usually destructive). Libev makes it possible to work |
905 | not supported and usually destructive). Libev makes it possible to work |
