Acquires the vector's mutex lock

# pht\Vector::lock

(PECL pht >= 0.0.1)

pht\Vector::lock — Acquires the vector's mutex lock

### Description

public pht\Vector::lock ( void ) : void

This method will acquire the mutex lock associated with the vector. The mutex lock should always be acquired when manipulating the vector if it is being used by multiple threads.

The mutex locks of the Inter-Thread Communication (ITC) data structures are not reentrant. Attempting to reacquire an already-acquired mutex lock by the same thread will therefore cause a deadlock.

### Liste de paramètres

Cette fonction ne contient aucun paramètre.

### Valeurs de retour

No return value.

### Exemples

Exemple #1 Locking a vector's mutex lock

`<?php
use pht\{Thread, Vector};
$thread = new Thread();
$vector = new Vector();
$thread->addFunctionTask(function ($vector) {
$vector->lock();
$vector[] = 1;
$vector->unlock();
}, $vector);
$thread->start();
// $vector is currently being used by multiple threads
$vector->lock();
$vector[] = 2;
$vector->unlock();
$thread->join();`