ilXcache Class Reference

Class ilXcache. More...

Inheritance diagram for ilXcache:

Collaboration diagram for ilXcache:

Public Member Functions
	__construct ($serviceId, $component)
	ilXcache constructor. More...
	exists ($key)
	set ($key, $serialized_value, $ttl=null)
	get ($key)
	delete ($key)
	flush ()
	serialize ($value)
	unserialize ($serialized_value)
	getInfo ()
	__destruct ()
Public Member Functions inherited from ilGlobalCacheService
	__construct ($service_id, $component)
	unserialize ($serialized_value)
	get ($key)
	set ($key, $serialized_value, $ttl=null)
	serialize ($value)
	getServiceId ()
	setServiceId ($service_id)
	getComponent ()
	setComponent ($component)
	isActive ()
	isInstallable ()
	returnKey ($key)
	getInfo ()
	getInstallationFailureReason ()
	exists ($key)
	delete ($key)
	flush ()
	setServiceType ($service_type)
	getServiceType ()
	setValid ($key)
	Declare a key as valid. More...
	setInvalid ($key=null)
	Set the key as invalid. More...
	isValid ($key)
	Checks whether the cache key is valid or not. More...

Data Fields
const	MIN_MEMORY = 32

Protected Member Functions
	getActive ()
	getInstallable ()
	getMemoryLimit ()
	getMinMemory ()
	saveValid ()
	readValid ()
Protected Member Functions inherited from ilGlobalCacheService
	getActive ()
	getInstallable ()
	getMemoryLimit ()
	getMinMemory ()
	checkMemory ()

Additional Inherited Members
Protected Attributes inherited from ilGlobalCacheService
	$current_time = 0
	$valid_keys = array()
	$service_id = ''
	$component = ''
	$service_type = ilGlobalCache::TYPE_STATIC
	$valid_key_hash = ''
Static Protected Attributes inherited from ilGlobalCacheService
static	$active = array()
static	$installable = array()

Detailed Description

Class ilXcache.

Concrete XCache implementation.

Author

Fabian Schmid fs@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch

Version

1.0.1

Definition at line 12 of file class.ilXcache.php.

Constructor & Destructor Documentation

__construct()

ilXcache::__construct	(		$serviceId,
			$component
	)

ilXcache constructor.

Parameters

$serviceId
$component

Definition at line 23 of file class.ilXcache.php.

References ilGlobalCacheService\$component, and readValid().

    {
        parent::__construct($serviceId, $component);
        $this->readValid();
    }

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__destruct()

ilXcache::__destruct

(

)

Definition at line 193 of file class.ilXcache.php.

References saveValid().

    {
        $this->saveValid();
    }

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Member Function Documentation

delete()

ilXcache::delete

(

$key

)

Parameters

$key

Returns

bool

Definition at line 70 of file class.ilXcache.php.

References $key, and ilGlobalCacheService\returnKey().

    {
        return xcache_unset($this->returnKey($key));
    }

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exists()

ilXcache::exists

(

$key

)

Parameters

$key

Returns

bool

Definition at line 35 of file class.ilXcache.php.

References $key, and ilGlobalCacheService\returnKey().

    {
        return xcache_isset($this->returnKey($key));
    }

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flush()

ilXcache::flush

(

)

Returns

bool

Definition at line 79 of file class.ilXcache.php.

References $_SERVER.

    {
        $_SERVER["PHP_AUTH_USER"] = "xcache";
        $_SERVER["PHP_AUTH_PW"] = "xcache";

        xcache_clear_cache(XC_TYPE_VAR, 0);

        return true;
    }

get()

ilXcache::get

(

$key

)

Parameters

$key

Returns

mixed

Definition at line 59 of file class.ilXcache.php.

References $key, and ilGlobalCacheService\returnKey().

    {
        return xcache_get($this->returnKey($key));
    }

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getActive()

ilXcache::getActive ( )

protected

Returns

bool

Definition at line 115 of file class.ilXcache.php.

References ilGlobalCacheService\$active.

    {
        $function_exists = function_exists('xcache_set');
        $var_size = ini_get('xcache.var_size') != '0M';
        $var_count = ini_get('xcache.var_count') > 0;
        $api = (php_sapi_name() !== 'cli');

        $active = $function_exists and $var_size and $var_count and $api;

        return $active;
    }

getInfo()

ilXcache::getInfo

(

)

Returns

array

Definition at line 140 of file class.ilXcache.php.

References ilGlobalCacheService\isActive().

    {
        if ($this->isActive()) {
            return xcache_info(XC_TYPE_VAR, 0);
        }
    }

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getInstallable()

ilXcache::getInstallable ( )

protected

Returns

bool

Definition at line 131 of file class.ilXcache.php.

    {
        return function_exists('xcache_set');
    }

getMemoryLimit()

ilXcache::getMemoryLimit ( )

protected

Returns

int|string

Definition at line 151 of file class.ilXcache.php.

    {
        return ini_get('xcache.var_size');
    }

getMinMemory()

ilXcache::getMinMemory ( )

protected

Returns

int

Definition at line 160 of file class.ilXcache.php.

    {
        return self::MIN_MEMORY;
    }

readValid()

ilXcache::readValid ( )

protected

Returns

void

set self::$valid_keys from GlobalCache

Definition at line 185 of file class.ilXcache.php.

References ilGlobalCacheService\isActive(), ilGlobalCacheService\isInstallable(), serialize(), and unserialize().

Referenced by __construct().

    {
        if ($this->isActive() && $this->isInstallable()) {
            $this->valid_keys = $this->unserialize($this->get('valid_keys'));
            $this->valid_key_hash = md5(serialize($this->valid_keys));
        }
    }

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saveValid()

ilXcache::saveValid ( )

protected

Returns

void

save self::$valid_keys to GlobalCache

Definition at line 170 of file class.ilXcache.php.

References ilGlobalCacheService\isActive(), and serialize().

Referenced by __destruct().

    {
        if ($this->isActive()) {
            if ($this->valid_key_hash != md5(serialize($this->valid_keys))) {
                $this->set('valid_keys', $this->serialize($this->valid_keys));
            }
        }
    }

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serialize()

ilXcache::serialize

(

$value

)

Parameters

$value

Returns

mixed

Definition at line 95 of file class.ilXcache.php.

Referenced by readValid(), and saveValid().

    {
        return serialize($value);
    }

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set()

ilXcache::set	(		$key,
			$serialized_value,
			$ttl = null
	)

Parameters

	$key
	$serialized_value
null	$ttl

Returns

bool

Definition at line 48 of file class.ilXcache.php.

References $key, and ilGlobalCacheService\returnKey().

    {
        return xcache_set($this->returnKey($key), $serialized_value, $ttl);
    }

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unserialize()

ilXcache::unserialize

(

$serialized_value

)

Parameters

$serialized_value

Returns

mixed

Definition at line 106 of file class.ilXcache.php.

Referenced by readValid().

    {
        return unserialize($serialized_value);
    }

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Field Documentation

MIN_MEMORY

const ilXcache::MIN_MEMORY = 32

Definition at line 14 of file class.ilXcache.php.

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The documentation for this class was generated from the following file:

• Services/GlobalCache/classes/Xcache/class.ilXcache.php