GearmanClient::doBackground

(PECL gearman >= 0.5.0)

GearmanClient::doBackgroundRun a task in the background

Опис

public GearmanClient::doBackground(string $function, string $workload, ?string $unique = null): string

Runs a task in the background, returning a job handle which can be used to get the status of the running task.

Параметри

function

Зареєстрована функція, яку викликає робочий процес

workload

Серіалізовані дані для обробки

unique

Унікальний ID завдання

Значення, що повертаються

The job handle for the submitted task.

Приклади

Приклад #1 Submit and monitor a background job

The worker in this example has an artificial delay introduced to mimic a long running job. The client script periodically checks the status of the running job.

<?php

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

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

/* run reverse client */
$job_handle = $gmclient->doBackground("reverse", "this is a test");

if (
$gmclient->returnCode() != GEARMAN_SUCCESS)
{
echo
"bad return code\n";
exit;
}

$done = false;
do
{
sleep(3);
$stat = $gmclient->jobStatus($job_handle);
if (!
$stat[0]) // the job is known so it is not done
$done = true;
echo
"Running: " . ($stat[1] ? "true" : "false") . ", numerator: " . $stat[2] . ", denominator: " . $stat[3] . "\n";
}
while(!
$done);

echo
"done!\n";

?>

Поданий вище приклад виведе щось схоже на:

Running: true, numerator: 3, denominator: 14
Running: true, numerator: 6, denominator: 14
Running: true, numerator: 9, denominator: 14
Running: true, numerator: 12, denominator: 14
Running: false, numerator: 0, denominator: 0
done!

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