The EvTimer classIntroductionEvTimer watchers are simple relative timers that generate an event after a given time, and optionally repeating in regular intervals after that. The timers are based on real time, that is, if one registers an event that times out after an hour and resets the system clock to January last year , it will still time out after(roughly) one hour. "Roughly" because detecting time jumps is hard, and some inaccuracies are unavoidable. The callback is guaranteed to be invoked only after its timeout has passed (not at, so on systems with very low-resolution clocks this might introduce a small delay). If multiple timers become ready during the same loop iteration then the ones with earlier time-out values are invoked before ones of the same priority with later time-out values (but this is no longer true when a callback calls EvLoop::run recursively).
The timer itself will do a best-effort at avoiding drift, that is, if a
timer is configured to trigger every
Class synopsis
EvTimer
class EvTimer
extends
EvWatcher
{
/* Properties */
public
$repeat;
public
$remaining;
/* Inherited properties */
public
$is_active;
public
$data;
public
$is_pending;
public
$priority;
/* Methods */
public
__construct(
float $after
,float $repeat
,callable $callback
,mixed $data
= null
,int $priority
= 0
) public
void again()
final
public
static
EvTimer createStopped(
float $after
,float $repeat
,callable $callback
,mixed $data
= null
,int $priority
= 0
) public
void set(
float
$after
,
float
$repeat
)/* Inherited methods */
public
int EvWatcher::clear()
public
void EvWatcher::feed(
int
$revents
)public
EvLoop EvWatcher::getLoop()
public
void EvWatcher::invoke(
int
$revents
)public
bool EvWatcher::keepalive(
bool
$value
= ?)public
void EvWatcher::setCallback(
callable
$callback
)public
void EvWatcher::start()
public
void EvWatcher::stop()
}Properties
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