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    The EvLoop class

    (PECL ev >= 0.2.0)

    はじめに

    Represents an event loop that is always distinct from the default loop . Unlike the default loop , it cannot handle EvChild watchers.

    Having threads we have to create a loop per thread, and use the default loop in the parent thread.

    The default event loop is initialized automatically by Ev . It is accessible via methods of the Ev class, or via EvLoop::defaultLoop() method.

    クラス概要

    final class EvLoop {
    /* プロパティ */
    public $data;
    public $backend;
    public $is_default_loop;
    public $iteration;
    public $pending;
    public $io_interval;
    public $timeout_interval;
    public $depth;
    /* メソッド */
    public __construct(
         int $flags = ?,
         mixed $data = NULL ,
         float $io_interval = 0.0 ,
         float $timeout_interval = 0.0
    )
    public backend(): int
    final public check( string $callback , string $data = ?, string $priority = ?): EvCheck
    final public child(
         string $pid ,
         string $trace ,
         string $callback ,
         string $data = ?,
         string $priority = ?
    ): EvChild
    public static defaultLoop(
         int $flags = Ev::FLAG_AUTO ,
         mixed $data = NULL ,
         float $io_interval = 0. ,
         float $timeout_interval = 0.
    ): EvLoop
    final public embed(
         string $other ,
         string $callback = ?,
         string $data = ?,
         string $priority = ?
    ): EvEmbed
    final public fork( callable $callback , mixed $data = null , int $priority = 0 ): EvFork
    final public idle( callable $callback , mixed $data = null , int $priority = 0 ): EvIdle
    public invokePending(): void
    final public io(
         mixed $fd ,
         int $events ,
         callable $callback ,
         mixed $data = null ,
         int $priority = 0
    ): EvIo
    public loopFork(): void
    public now(): float
    public nowUpdate(): void
    final public periodic(
         float $offset ,
         float $interval ,
         callable $callback ,
         mixed $data = null ,
         int $priority = 0
    ): EvPeriodic
    final public prepare( callable $callback , mixed $data = null , int $priority = 0 ): EvPrepare
    public resume(): void
    public run( int $flags = 0 ): void
    final public signal(
         int $signum ,
         callable $callback ,
         mixed $data = null ,
         int $priority = 0
    ): EvSignal
    final public stat(
         string $path ,
         float $interval ,
         callable $callback ,
         mixed $data = null ,
         int $priority = 0
    ): EvStat
    public stop( int $how = ?): void
    public suspend(): void
    final public timer(
         float $after ,
         float $repeat ,
         callable $callback ,
         mixed $data = null ,
         int $priority = 0
    ): EvTimer
    public verify(): void
    }

    プロパティ

    data

    Custom data attached to loop

    backend

    Readonly . The backend flags indicating the event backend in use.

    is_default_loop

    Readonly . true if it is the default event loop.

    iteration

    The current iteration count of the loop. See Ev::iteration()

    pending

    The number of pending watchers. 0 indicates that there are no watchers pending.

    io_interval

    Higher io_interval allows libev to spend more time collecting EvIo events, so more events can be handled per iteration, at the cost of increasing latency. Timeouts (both EvPeriodic and EvTimer ) will not be affected. Setting this to a non-zero value will introduce an additional sleep() call into most loop iterations. The sleep time ensures that libev will not poll for EvIo events more often than once per this interval, on average. Many programs can usually benefit by setting the io_interval to a value near 0.1 , which is often enough for interactive servers(not for games). It usually doesn't make much sense to set it to a lower value than 0.01 , as this approaches the timing granularity of most systems.

    See also » FUNCTIONS CONTROLLING EVENT LOOPS .

    timeout_interval

    Higher