@WyriHaximus

Files

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@WyriHaximus

file_get_contents('HelloWorld.java');

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$filename = 'HelloWorld.java';
$handle = fopen($filename, 'r');
$contents = fread($handle, filesize($filename));
fclose($handle);

@WyriHaximus

function file_get_contents($filename)
{
    $handle = fopen($filename, 'r');
    $contents = fread($handle, filesize($filename));
    fclose($handle);
}

@WyriHaximus

$filename = 'HelloWorld.java';
$handle = fopen($filename, 'r');
$contents = '';
while (!feof($handle)) {
    $contents .= fread($handle, 4096);
}
fclose($handle);

@WyriHaximus

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}

@WyriHaximus

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}
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@WyriHaximus

• .
• ..
• HelloWorld.java
• PHP Antwerp.ug
• vendor

@WyriHaximus

• .
• ..
• HelloWorld.java
• PHP Antwerp.ug
• vendor

@WyriHaximus

• .
• ..
• HelloWorld.java
• PHP Antwerp.ug
• vendor

@WyriHaximus

• .
• ..
• HelloWorld.java
• PHP Antwerp.ug
• vendor

@WyriHaximus

• .
• ..
• HelloWorld.java
• PHP Antwerp.ug
• vendor

@WyriHaximus

• .
• ..
• HelloWorld.java
• PHP Antwerp.ug
• vendor

@WyriHaximus

@WyriHaximus

• Directory

• File
• Symlink

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• Directory: 0x4000

• File
• Symlink

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• Directory: 0x4000

• File: 0x8000
• Symlink

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• Directory: 0x4000

• File: 0x8000
• Symlink: 0xa000

@WyriHaximus

• .
• ..
• HelloWorld.java
• PHP Antwerp.ug
• PHP Antwerp.ug

@WyriHaximus

Inodes

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A file

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A directory

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A symlink

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Software Limits

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ulimit

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Questions?

@WyriHaximus

https://slides.com/wyrihaximus/lessons-learned-from-building-an-asynchronous-filesystem-component

Slides:

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