1EV(3)                 User Contributed Perl Documentation                EV(3)
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NAME

6       Coro::EV - do events the coro-way, with EV
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SYNOPSIS

9        use Coro;
10        use Coro::EV;
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12        EV::READ & Coro::EV::timed_io_once $fh, EV::READ, 60
13           or die "timeout\n";
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15        EV::run;
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DESCRIPTION

18       This module does two things: First, it offers some utility functions
19       that might be useful for threads (although Coro::AnyEvent offers more
20       and more portable functions), and secondly, it integrates Coro into the
21       EV main loop:
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23       Before the process blocks (in EV::run) to wait for events, this module
24       will schedule and run all ready (= runnable) threads of the same or
25       higher priority. After that, it will cede once to a threads of lower
26       priority, then continue in the event loop.
27
28       That means that threads with the same or higher priority as the threads
29       running the main loop will inhibit event processing, while threads of
30       lower priority will get the CPU, but cannot completeley inhibit event
31       processing. Note that for that to work you actually have to run the EV
32       event loop in some thread.
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RUNNING WITH OR WITHOUT A MAINLOOP

35       In general, you should always run EV::run, either in your main program,
36       or in a separate coroutine. If you don't do that and all coroutines
37       start waiting for some events, this module will run the event loop
38       once, but this is very inefficient and will also not make it possible
39       to run background threads.
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41       To run the EV event loop in a separate thread, you can simply do this:
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43         async { EV::run };
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FUNCTIONS

46       $revents = Coro::EV::timed_io_once $fileno_or_fh, $events[, $timeout]
47           Blocks the coroutine until either the given event set has occurred
48           on the fd, or the timeout has been reached (if timeout is missing
49           or "undef" then there will be no timeout). Returns the received
50           flags.
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52           Consider using "Coro::AnyEvent::readable" and
53           "Coro::AnyEvent::writable" instead, they work with any AnyEvent-
54           supported event loop.
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56       Coro::EV::timer_once $after
57           Blocks the coroutine for at least $after seconds.
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59           Consider using "Coro::AnyEvent::sleep" instead, which works with
60           any AnyEvent-supported event loop.
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AUTHOR/SUPPORT/CONTACT

63          Marc A. Lehmann <schmorp@schmorp.de>
64          http://software.schmorp.de/pkg/Coro.html
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68perl v5.34.0                      2021-07-22                             EV(3)
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