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    GearmanClient::addTaskStatus

    (PECL gearman >= 0.5.0)

    GearmanClient::addTaskStatus — Add a task to get status

    Descrizione

    public GearmanClient::addTaskStatus(string $job_handle, mixed $context = null): GearmanTask|false

    Used to request status information from the Gearman server, which will call the specified status callback (set using GearmanClient::setStatusCallback()).

    Elenco dei parametri

    job_handle

    The job handle for the task to get status for

    context

    Data to be passed to the status callback, generally a reference to an array or object

    Valori restituiti

    A GearmanTask object or false on failure.

    Esempi

    Example #1 Monitor completion of multiple background tasks

    An artificial delay is introduced in the worker in this example to simulate a long running process. There is only one worker running for this example.

    <?php

    /* create our object */
    $gmclient= new GearmanClient();

    /* add the default server */
    $gmclient->addServer();

    /* start some background jobs and save the handles */
    $handles = array();
    $handles[0] = $gmclient->doBackground("reverse", "Hello World!");
    $handles[1] = $gmclient->doBackground("reverse", "!dlroW olleH");

    $gmclient->setStatusCallback("reverse_status");

    /* Poll the server to see when those background jobs finish; */
    /* a better method would be to use event callbacks */
    do
    {
    /* Use the context variable to track how many tasks have completed */
    $done = 0;
    $gmclient->addTaskStatus($handles[0], &$done);
    $gmclient->addTaskStatus($handles[1], &$done);
    $gmclient->runTasks();
    echo     "Done: $done\n";
    sleep(1);
    }
    while (    $done != 2);

    function     reverse_status($task, $done)
    {
    if (!    $task->isKnown())
    $done++;
    }

    ?>

    Il precedente esempio visualizzerà qualcosa simile a:

    Done: 0
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