Pool::submitTo

(PECL pthreads >= 2.0.0)

Pool::submitTo — Submits a task to a specific worker for execution

説明

public function Pool::submitTo(int $worker, Threaded $task): int

Submit a task to the specified worker in the pool. The workers are indexed from 0, and will only exist if the pool has needed to create them (since threads are lazily spawned).

パラメータ

worker: The worker to stack the task onto, indexed from 0.
task: The task for execution.

戻り値

The identifier of the worker that accepted the task.

例

例1 Submitting tasks to a specific worker

<?php
class Task extends Threaded {
    public function run() {
        var_dump(Thread::getCurrentThreadID());
    }
}

$pool = new Pool(2);

$pool->submit(new Task());

for ($i = 0; $i < 5; ++$i) {
    $pool->submitTo(0, new Task()); // stack all tasks onto the first worker
}

$pool->submitTo(1, new Task()); // cannot stack the task onto the second worker due to it not existing yet

$pool->shutdown();

上の例の出力は以下となります。

int(4475011072)
int(4475011072)
int(4475011072)
int(4475011072)
int(4475011072)
int(4475011072)

Fatal error: Uncaught Exception: The selected worker (1) does not exist in %s:%d

関連キーワード:

worker task pool Pool submitTo specific execution Task Submits stack onto submit Threaded indexed exist tasks Volatile pthreads Submit specified workers needed create them since