(PECL gearman >= 0.5.0)
GearmanClient::doBackground — Run a task in the background
$function
, string $workload
, ?string $unique
= null
): stringRuns a task in the background, returning a job handle which can be used to get the status of the running task.
function
Зареєстрована функція, яку викликає робочий процес
workload
Серіалізовані дані для обробки
unique
Унікальний ID завдання
The job handle for the submitted task.
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!