[ViewVC] Diff of: cvs/EV/README

Comparing EV/README (file contents):
Revision 1.42 by root, Sat Mar 8 15:51:23 2014 UTC vs.
Revision 1.45 by root, Fri Dec 21 07:06:51 2018 UTC

           my ($w, $revents) = @_;
           warn $w->path, " has changed somehow.\n";
        };
        # MAINLOOP
-       EV::run;                # loop until EV::unloop is called or all watchers stop
+       EV::run;                # loop until EV::break is called or all watchers stop
        EV::run EV::RUN_ONCE;   # block until at least one event could be handled
        EV::run EV::RUN_NOWAIT; # try to handle same events, but do not block
 BEFORE YOU START USING THIS MODULE
     If you only need timer, I/O, signal, child and idle watchers and not the
         (EV::BACKEND_SELECT or EV::BACKEND_EPOLL).
     $active = EV::run [$flags]
     $active = $loop->run ([$flags])
         Begin checking for events and calling callbacks. It returns when a
-        callback calls EV::unloop or the flasg are nonzero (in which case
+        callback calls EV::break or the flags are nonzero (in which case the
-        the return value is true) or when there are no active watchers which
+        return value is true) or when there are no active watchers which
         reference the loop (keepalive is true), in which case the return
-        value will be false. The returnv alue can generally be interpreted
+        value will be false. The return value can generally be interpreted
         as "if true, there is more work left to do".
         The $flags argument can be one of the following:
            0               as above
         "EV::READ | EV::WRITE", indicating the type of I/O event you want to
         wait for. If you do not want to wait for some I/O event, specify
         "undef" for $fh_or_undef and 0 for $events).
         If timeout is "undef" or negative, then there will be no timeout.
-        Otherwise a EV::timer with this value will be started.
+        Otherwise an "EV::timer" with this value will be started.
         When an error occurs or either the timeout or I/O watcher triggers,
         then the callback will be called with the received event set (in
         general you can expect it to be a combination of "EV::ERROR",
         "EV::READ", "EV::WRITE" and "EV::TIMER").
    TIMER WATCHERS - relative and optionally repeating timeouts
     $w = EV::timer $after, $repeat, $callback
     $w = EV::timer_ns $after, $repeat, $callback
     $w = $loop->timer ($after, $repeat, $callback)
     $w = $loop->timer_ns ($after, $repeat, $callback)
-        Calls the callback after $after seconds (which may be fractional).
+        Calls the callback after $after seconds (which may be fractional or
-        If $repeat is non-zero, the timer will be restarted (with the
+        negative). If $repeat is non-zero, the timer will be restarted (with
-        $repeat value as $after) after the callback returns.
+        the $repeat value as $after) after the callback returns.
         This means that the callback would be called roughly after $after
         seconds, and then every $repeat seconds. The timer does his best not
         to drift, but it will not invoke the timer more often then once per
         event loop iteration, and might drift in other cases. If that isn't
         the same time.
         The "timer_ns" variant doesn't start (activate) the newly created
         watcher.
-    $w->set ($after, $repeat)
+    $w->set ($after, $repeat = 0)
         Reconfigures the watcher, see the constructor above for details. Can
         be called at any time.
     $w->again
+    $w->again ($repeat)
         Similar to the "start" method, but has special semantics for
         repeating timers:
         If the timer is active and non-repeating, it will be stopped.
         This behaviour is useful when you have a timeout for some IO
         operation. You create a timer object with the same value for $after
         and $repeat, and then, in the read/write watcher, run the "again"
         method on the timeout.
+        If called with a $repeat argument, then it uses this a timer repeat
+        value.
+    $after = $w->remaining
+        Calculates and returns the remaining time till the timer will fire.
    PERIODIC WATCHERS - to cron or not to cron?
     $w = EV::periodic $at, $interval, $reschedule_cb, $callback
     $w = EV::periodic_ns $at, $interval, $reschedule_cb, $callback
     $w = $loop->periodic ($at, $interval, $reschedule_cb, $callback)
             system time reaches or surpasses this time.
         *   repeating interval timer ($interval > 0, $reschedule_cb = 0)
             In this mode the watcher will always be scheduled to time out at
-            the next "$at + N * $interval" time (for some integer N) and
+            the next "$at + N * $interval" time (for the lowest integer N)
-            then repeat, regardless of any time jumps.
+            and then repeat, regardless of any time jumps. Note that, since
+            "N" can be negative, the first trigger can happen before $at.
             This can be used to create timers that do not drift with respect
             to system time:
                my $hourly = EV::periodic 0, 3600, 0, sub { print "once/hour\n" };
             first, and the current time as second argument.
             *This callback MUST NOT stop or destroy this or any other
             periodic watcher, ever, and MUST NOT call any event loop
             functions or methods*. If you need to stop it, return 1e30 and
-            stop it afterwards. You may create and start a "EV::prepare"
+            stop it afterwards. You may create and start an "EV::prepare"
             watcher for this task.
             It must return the next time to trigger, based on the passed
             time value (that is, the lowest time value larger than or equal
             to to the second argument). It will usually be called just
             before the callback will be triggered, but might be called at
             other times, too.
             This can be used to create very complex timers, such as a timer
-            that triggers on each midnight, local time (actually 24 hours
+            that triggers on each midnight, local time (actually one day
-            after the last midnight, to keep the example simple. If you know
+            after the last midnight, to keep the example simple):
-            a way to do it correctly in about the same space (without
-            requiring elaborate modules), drop me a note :):
                my $daily = EV::periodic 0, 0, sub {
                   my ($w, $now) = @_;
                   use Time::Local ();
                   my (undef, undef, undef, $d, $m, $y) = localtime $now;
-                  86400 + Time::Local::timelocal 0, 0, 0, $d, $m, $y
+                  Time::Local::timelocal_nocheck 0, 0, 0, $d + 1, $m, $y
                }, sub {
                   print "it's midnight or likely shortly after, now\n";
                };
         The "periodic_ns" variant doesn't start (activate) the newly created

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Comparing EV/README (file contents): Revision 1.42 by root, Sat Mar 8 15:51:23 2014 UTC vs. Revision 1.45 by root, Fri Dec 21 07:06:51 2018 UTC

Diff Legend

Comparing EV/README (file contents):
Revision 1.42 by root, Sat Mar 8 15:51:23 2014 UTC vs.
Revision 1.45 by root, Fri Dec 21 07:06:51 2018 UTC