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    The EvChild class

    (PECL ev >= 0.2.0)

    Introducción

    EvChild watchers trigger when the process receives a SIGCHLD in response to some child status changes (most typically when a child dies or exits). It is permissible to install an EvChild watcher after the child has been forked(which implies it might have already exited), as long as the event loop isn't entered(or is continued from a watcher), i.e. forking and then immediately registering a watcher for the child is fine, but forking and registering a watcher a few event loop iterations later or in the next callback invocation is not.

    It is allowed to register EvChild watchers in the default loop only.

    Sinopsis de la Clase

    class EvChild extends EvWatcher {
    /* Propiedades */
    public $pid;
    public $rpid;
    public $rstatus;
    /* Propiedades heredadas */
    public $is_active;
    public $data;
    public $is_pending;
    public $priority;
    /* Métodos */
    public __construct(
         int $pid ,
         bool $trace ,
         callable $callback ,
         mixed $data = null ,
         int $priority = 0
    )
    final public static createStopped(
         int $pid ,
         bool $trace ,
         callable $callback ,
         mixed $data = ?,
         int $priority = ?
    ): object
    public set( int $pid , bool $trace ): void
    /* Métodos heredados */
    public EvWatcher::clear(): int
    public EvWatcher::feed( int $revents ): void
    public EvWatcher::getLoop(): EvLoop
    public EvWatcher::invoke( int $revents ): void
    public EvWatcher::keepalive( bool $value = ?): bool
    public EvWatcher::setCallback( callable $callback ): void
    public EvWatcher::start(): void
    public EvWatcher::stop(): void
    }

    Propiedades

    pid

    Readonly . The process ID this watcher watches out for, or 0 , meaning any process ID.

    rpid

    Readonly .The process ID that detected a status change.

    rstatus

    Readonly . The process exit status caused by rpid .

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