[edit] Last updated: Sat, 07 Jan 2012

GearmanClient::addTaskHigh

(PECL gearman >= 0.5.0)

GearmanClient::addTaskHigh — Add a high priority task to run in parallel

설명

public GearmanTask GearmanClient::addTaskHigh ( string $function_name , string $workload [, mixed &$context [, string $unique ]] )

Adds a high priority task to be run in parallel with other tasks. Call this method for all the high priority tasks to be run in parallel, then call GearmanClient::runTasks() to perform the work. Tasks with a high priority will be selected from the queue before those of normal or low priority.

인수

function_name: 워커가 실행할 등록된 함수
workload: 처리할 직렬화된 데이터
context: 태스크에 할당된 어플리케이션 컨텍스트
unique: 특정 태스크를 인식하는데 사용하는 고유 ID

반환값

A GearmanTask object or FALSE if the task could not be added.

예제

Example #1 A high priority task along with two normal tasks

A high priority task is included among two other tasks. A single worker is available, so that tasks are run one at a time, with the high priority task run first.


<?php

# create the gearman client
$gmc= new GearmanClient();

# add the default job server
$gmc->addServer();

# set the callback for when the job is complete
$gmc->setCompleteCallback("reverse_complete");

# add tasks, one of which is high priority
$task= $gmc->addTask("reverse", "Hello World!", null, "1");
$task= $gmc->addTaskHigh("reverse", "!dlroW olleH", null, "2");
$task= $gmc->addTask("reverse", "Hello World!", null, "3");

if (! $gmc->runTasks())
{
    echo "ERROR " . $gmc->error() . "\n";
    exit;
}
echo "DONE\n";

function reverse_complete($task)
{
    echo "COMPLETE: " . $task->unique() . ", " . $task->data() . "\n";
}

?>

위 예제의 출력 예시:

COMPLETE: 2, Hello World!
COMPLETE: 3, !dlroW olleH
COMPLETE: 1, !dlroW olleH
DONE

참고

GearmanClient::addTask() - Add a task to be run in parallel
GearmanClient::addTaskLow() - Add a low priority task to run in parallel
GearmanClient::addTaskBackground() - Add a background task to be run in parallel
GearmanClient::addTaskHighBackground() - Add a high priority background task to be run in parallel
GearmanClient::addTaskLowBackground() - Add a low priority background task to be run in parallel
GearmanClient::runTasks() - Run a list of tasks in parallel

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