<ruby id="bdb3f"></ruby>

    <p id="bdb3f"><cite id="bdb3f"></cite></p>

      

      <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
        <p id="bdb3f"><cite id="bdb3f"></cite></p>
          

          <pre id="bdb3f"></pre>
          <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>
          

          <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
          <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>
          

          <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>
                <ruby id="bdb3f"></ruby>
                
    


                
  
                                            
                                                                                    
        
                
          合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。
          廣告
        
                        
                
  

                

                
    
                
        
                
                            ## 文件鎖

### 鎖可重入性：

1. 進程內可重入
2. 子進程內可重入



```php
$fp = fopen('./s-lock.lock', 'r');

if (flock($fp, LOCK_EX | LOCK_NB))
    echo 'lock ok 1' . PHP_EOL;

if (flock($fp, LOCK_EX | LOCK_NB))
    echo 'lock ok 2' . PHP_EOL; // 同一個進程內可重入

$r = pcntl_fork();

if ($r > 0) {
    if (flock($fp, LOCK_EX | LOCK_NB))
        echo 'lock ok 3' . PHP_EOL;
} elseif ($r == 0) {
    if (flock($fp, LOCK_EX | LOCK_NB))
        echo 'lock ok 4' . PHP_EOL;

    if (flock($fp, LOCK_EX | LOCK_NB))
        echo 'lock ok 5' . PHP_EOL;
} else {
    echo 'fork fail';
}

sleep(5);
```

~~~shell
$: php test.php 
lock ok 1
lock ok 2
lock ok 3
lock ok 4
lock ok 5
~~~

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







                  <ruby id="bdb3f"></ruby>
                  <p id="bdb3f"><cite id="bdb3f"></cite></p>
                    

                    <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
                      <p id="bdb3f"><cite id="bdb3f"></cite></p>
                        

                        <pre id="bdb3f"></pre>
                        <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>
                        

                        <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
                        <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>
                        

                        <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>
                              <ruby id="bdb3f"></ruby>
                              

哎呀哎呀视频在线观看